General Volcanic Activity Thread!

[john pike]

Volcanoes Today, 26 Oct 2014: Kilauea volcano

Sunday Oct 26, 2014 10:00 AM |

The June 27th lava flow crossed Apaʻa Street / Cemetery Road at 3:50 AM, HST, Saturday morning, October 25, 2014. In this photo, which was taken at about 9 AM Saturday, the flow is moving from right to left, with burning asphalt visible along it's NW margin. A utility pole, far right, was surrounded by lava but remained standing at the time of the photo. The hope is that the protective insulation and cinder/cement barrier around the pole will prevent it from burning through. (image: HVO)

The 2 active lava fronts advancing towards Apa'a Street just before the contact earlier today (HVO)

Kilauea (Hawai'i): Lava has crossed the ApaÊ»a Street / Cemetery Road near the driveway to the PÄhoa cemetery and is now spreading mainly over open grassland.

Between 40 and 50 households could be evacuated within the next few days, as soon as Tuesday, if the lava continues to advance at current rates (approx. 250 m per day) and follows the most likely paths.

The lava flow front, approx. 70 m wide, is headed northeast and only 1 km straight line distance from Pahoa Village Road,†he said. The best guess of HVO is that the lava might cross Pahoa Village Road a little bit west of the Pahoa Post Office.

The Hawaii Electric Light Company is trying to protect their wooden utility poles by encasing them with concrete, and thus, preventing the lava to burn it, but rather flow around them. So far, one pole engulfed in the lava flows have survived, but as the flows inflate, their fate might be different

[john pike]

Kilauea volcano update: Lava only approx. 500 m from Pahoa village road

Monday Oct 27, 2014 18:28 PM | BY: T

Updated lava flow map at Pahoa, Hawai'i (image: HVO)

Lava flows continue to approach the center of Pahoa and might reach it within few days.

from HVO's latest update:

The relatively narrow finger of lava that crossed ApaÊ»a Street yesterday morning continued to travel downslope, splitting into two lobes as it advanced. The faster, northern lobe crossed completely through the PÄhoa cemetery by mid-morning, while the slower southern lobe was advancing through open pasture south of the cemetery. Another lobe farther upslope, just above ApaÊ»a Street, advanced about 50 meters (55 yards) since yesterday.

Over the course of the day, the advance rate of the narrow finger that crossed the cemetery varied from about 10 and 15 meters per hour (11 to 16 yards per hour), which is equivalent to 240–360 meters per day (260–390 yards per day). As of 5 PM, the faster-moving finger was about 390 meters (425 yards) downslope of ApaÊ»a Street and 660 meters (720 yards) upslope from PÄhoa Village Road. It had an average width of about 40 m (45 yd). The slightly slower-moving southern lobe in the pasture south of the cemetery reached slightly steeper terrain at mid-afternoon today, and was traveling at about 9 meters per hour (10 yards per hour) at 5 PM. It will likely rejoin with the finger that came through the cemetery near the northeast end of the pasture.

The pasture is located between two of the steepest decent paths plotted on HVO’s lava flow maps, and the flow is trending toward the southerly of these two paths. This path joins the northerly steepest-descent path about mid-way between the cemetery and PÄhoa Village Road, so the inferred flow path leading to PÄhoa Village Road is unchanged.

• All news about: Kilauea volcano
• Information about: Kilauea volcano

eruption updates & news from Stromboli:

latest (Aug-Oct 2014) | Jan-Jul 2014 | Apr-Dec 2013 | archive

Monday, Oct 27, 2014

Stromboli volcano (Eolian Islands, Italy) activity update

Lava flows on Stromboli last evening (photo: Ferruccio Ferrari)

No major changes have occurred at the volcano: Lava effusion continues from the 650 m vent and feeds active lava flows on the upper Sciara del Fuoco. From the lava flow fronts, incandescent blocks detach and roll down the slope.

Tremor has decreased to the lowest values measured during the past months and strombolian activity at the summit craters has almost disappeared.

 

 

 

http://www.volcanodiscovery.com/stromboli/news.html

[john pike]

Kilauea volcano update: Lava only approx. 500 m from Pahoa village road

Monday Oct 27, 2014 18:28 PM | BY: T

Updated lava flow map at Pahoa, Hawai'i (image: HVO)

Lava flows continue to approach the center of Pahoa and might reach it within few days.

from HVO's latest update:

The relatively narrow finger of lava that crossed ApaÊ»a Street yesterday morning continued to travel downslope, splitting into two lobes as it advanced. The faster, northern lobe crossed completely through the PÄhoa cemetery by mid-morning, while the slower southern lobe was advancing through open pasture south of the cemetery. Another lobe farther upslope, just above ApaÊ»a Street, advanced about 50 meters (55 yards) since yesterday.

Over the course of the day, the advance rate of the narrow finger that crossed the cemetery varied from about 10 and 15 meters per hour (11 to 16 yards per hour), which is equivalent to 240–360 meters per day (260–390 yards per day). As of 5 PM, the faster-moving finger was about 390 meters (425 yards) downslope of ApaÊ»a Street and 660 meters (720 yards) upslope from PÄhoa Village Road. It had an average width of about 40 m (45 yd). The slightly slower-moving southern lobe in the pasture south of the cemetery reached slightly steeper terrain at mid-afternoon today, and was traveling at about 9 meters per hour (10 yards per hour) at 5 PM. It will likely rejoin with the finger that came through the cemetery near the northeast end of the pasture.

The pasture is located between two of the steepest decent paths plotted on HVO’s lava flow maps, and the flow is trending toward the southerly of these two paths. This path joins the northerly steepest-descent path about mid-way between the cemetery and PÄhoa Village Road, so the inferred flow path leading to PÄhoa Village Road is unchanged.

• All news about: Kilauea volcano
• Information about: Kilauea volcano

eruption updates & news from Stromboli:

latest (Aug-Oct 2014) | Jan-Jul 2014 | Apr-Dec 2013 | archive

Monday, Oct 27, 2014

Stromboli volcano (Eolian Islands, Italy) activity update

Lava flows on Stromboli last evening (photo: Ferruccio Ferrari)

No major changes have occurred at the volcano: Lava effusion continues from the 650 m vent and feeds active lava flows on the upper Sciara del Fuoco. From the lava flow fronts, incandescent blocks detach and roll down the slope.

Tremor has decreased to the lowest values measured during the past months and strombolian activity at the summit craters has almost disappeared.

 

 

http://www.volcanodiscovery.com/stromboli/news.html

 

[john pike]

http://www.volcanodiscovery.com/kilauea/news/48695/Kilauea-volcano-update-Lava-flow-advances-through-residential-areas-of-Pahoa.html

 

Volcano news & updates: Kilauea volcano (Big Island, Hawaii) Kilauea volcano update: Lava flow advances through residential areas of Pahoa

Tuesday Oct 28, 2014 19:34 PM | BY: T

The advancing lava front in Pahoa last evening (image: HVO)

The lava front has now reached residential areas and moved closer to the first houses. One was at only 100 m distance last evening and is likely to become its first victim very soon.
Residents of Pahoa are preparing to evacuate their homes.
From HVO's update this evening (morning local time):
"The June 27th flow is advancing northeast through residential areas between ApaÊ»a St/Cemetery Rd and PÄhoa Village Road. The leading edge of the fastest advancing lobe of the flow has been moving at rates varying between 10 and 15 m/hr (11 to 16 yd/hr) during the past 24 hours, except for a period between 2am and 5am, when the front stopped advancing and the flow inflated in a small topographic low.
At 6am, the lobe was about 75m (82 yd) wide. At 9AM, the flow front was about 440 m (480 yd) straight-line distance from PÄhoa Village Road and was advancing at 15 m/hr (16yd/hr)."

• All news about: Kilauea volcano
• Information about: Kilauea volcano

[john pike]

http://www.bbc.co.uk/news/world-us-canada-29809558

[john pike]

Dukono volcano (Halmahera, Indonesia) activity update

Tuesday Oct 28, 2014 19:24 PM | BY: T

Explosive activity at the volcano continues. An ash plume at estimated 10,000 ft (3 km) altitude was seen drifting 45 nautical miles to the east on satellite data today (VAAC Darwin).

• All news about: Dukono volcano
• Information about: Dukono volcano

http://www.volcanodiscovery.com/dukono/news/48690/Dukono-volcano-Halmahera-Indonesia-activity-update.html

[john pike]

Volcanoes Today, 29 Oct 2014: Kilauea volcano

Wednesday Oct 29, 2014 20:00 PM |

County of Hawaii media image of lava flow through Pahoa village on Oct 28, 2014.

HELCO crews work to protect power lines on Pahoa Village Rd on Oct 28, 2014.

Kilauea (Hawai'i): According to the latest report, the lava flow front is now 280 m/yds from Pahoa Village Road, averaging about 10 m/yds per hour. Lava has already consumed a few small agricultural structures, and there are perhaps 10-15 residences in its direct path on both sides of the road. Residents have been placed on an "evacuation notice" without being forced to leave, so that they can see what happens to their property and hopefully bring some emotional closure to the ordeal.

[john pike]

KÄ«lauea volcano eruption update

Pahoa resident builds diversion barrier

Update Thu 30 Oct 19:35

Prominent among other "hot topics" today, the Pahoa resident whose house is immediately in threat has constructed a 5m/15ft earth barrier to attempt to divert the lava around his house. While the legality of his action has come into question, local officials are stressing constructive dialog the unites, not divides, the community. However, as of this morning the lava has reached the barrier which still remains in place and began spreading around it. The earth barrier can be seen in the USGS photo in our previous post, as well as in the County images released this morning.

Other important developments are the arrival and deployment of 80 US National Guard who will work under the authority of the Police Department. These are local residents coming back to help their community as part of the supplementary force. Also, the power pole which has so far survived the lava flow has shown signs of burning but has been stabilized & reinforced with no loss of electricity to customers.

County of Hawaii media image of lava flow reaching earth barrier in Pahoa village on Oct 29, 2014.

County of Hawaii media image of lava flow front in Pahoa village on Oct 29, 2014.

Lava flows continue to move into Pahoa

Update Thu 30 Oct 04:01

View of the lava flows moving into Pahoa village on the afternoon of 29 Oct (image: HVO)

This afternoon, the lava flow continued to move through private property and gets ever closer to the Pahoa village road. The leading edge of the flow was advancing about 10 m (11 yd) per hour this afternoon. It flow moved downslope about 125 m (136 yd) over the past 24 hours. The flow width was less than about 50 meters (55 yards) at the leading edge.

As of 4:15 pm (29 Oct local time), the flow was about 185 m (202 yd) in a straight line distance from PÄhoa Village Road and about 775 meters (850 yd) in a straight-line distance from Highway 130.

The lava lobe south of the main flow and upslope of Apa`a Street was not active today, but there were a couple of small breakouts on the north side of the flow that have advanced 70 to 110 m (75 to 120 yd) in the past day. (HVO's latest update)

 

http://www.volcanodiscovery.com/hawaii/kilauea/current-activity.html

[john pike]

Volcanoes Today, 30 Oct 2014: Stromboli volcano, Popocatépetl, Bardarbunga, Turrialba, Kilauea, Santiaguito, Fuego, Shiveluch

Thursday Oct 30, 2014 20:00 PM |

Thermal image of the upper Sciara del Fuoco of Stromboli

View of the eruption this morning (Mila webcam)

County of Hawaii media image of lava flow reaching earth barrier in Pahoa village on Oct 29, 2014.

View of the lava flows moving into Pahoa village on the afternoon of 29 Oct (image: HVO)

Ash explosion from Popoatépetl yesterday afternoon

Glow from the crater of Copahue on 27 Oct (image: SERNAGEOMIN)

Stromboli (Eolian Islands, Italy): (30 Oct) The effusive eruption that had started on 7 August seems to be ending: the lava flow emitted from the 650 m vent at the eastern base of the summit crater complex has decreased a lot two days ago and seems to have almost (or completely) stopped by today.

INGV Catania reports strong degassing from the summit vents.

Bardarbunga (Iceland): (30 Oct) Huge lava effusion rates continue to characterize the ongoing eruption at the Holuhraun fissure. There are no signs of the eruption ending soon.

Earthquakes continue to be frequent under the central volcano's caldera.

Shiveluch (Kamchatka): (30 Oct) An ash plume was reported last evening rising to approx. 30,000 ft (9 km) altitude and extending east (Tokyo VAAC).

Most likely, a collapse of a part of the growing lava dome (or an explosion) occurred. In the first case, the ash plume is likely associated with a pyroclastic flow.

Popocatépetl (Central Mexico): (30 Oct) Overall, the volcano's activity has remained unchanged. Occasional explosions produce ash plumes that rise 1-2 km above the volcano. Yesterday, the volcano was a bit more active and had 5 such eruptions.

Overnight incandescence is observed comming from the central and east sector of the crater.

Santiaguito (Guatemala): (30 Oct) The viscous lava flow on the eastern side continues to advance slowly. No significant explosive activity from the lava dome has been reported recently.

Fuego (Guatemala): (30 Oct) The volcano's activity has been stable over the past weeks. Mild to moderate strombolian explosions continue.

Yesterday, the observatory reported 11 weak explosions (ash plumes rising up to 500 m) and 13 moderate ones (ash plumes up to 800 m). The plumes drifted SE and W for approx. 10 km before dissipating. Light ash fall occurred in downwind areas.

The explosions at the summit produce incandescent avalanches on the upper slopes of the volcano.

Turrialba (Costa Rica): A relatively large explosion occurred at the volcano last night at 23:40 local time. According to local news, the eruption lasted about 45 minutes and was accompanied by strong seismic activity, which was felt by the local population.##########

As the eruption occurred at night, there are no visual reports.

At the moment, there is no precise information about the nature (phreatic ?) and size of the eruption (height of eruptive column, ash volume etc) but ash fall was reported from Heredia, 55 km northwest of the volcano, and Coronado, 25 km to the west on the outskirts of the capital San Jose. This suggests the plume was drifting NW.

Volcanologists from OVSICORI-UNA had climbed the volcano's summit yesterday morning and observed very elevated temperatures. Seismometers also recorded phases of tremor during the day.

Copahue (Chile/Argentina): Signs of unrest at the volcano have decreased and SERNAGEOMIN lowered the alert level back to yellow:

Seismicity declined during the past days, the volcanic edifice showed deflation and a crater lake has reformed at the bottom of El Agrio crater.

Glow from the summit, probably caused by very hot gasses, was last seen on 27 Oct (but bad weather prevented observations since).

[john pike]

Volcanoes Today, 31 Oct 2014: Shishaldin volcano

Friday Oct 31, 2014 16:00 PM |

Shishaldin (United States, Aleutian Islands): Eruptive activity at the volcano continues. Most of the time, it seems to be weak, probably strombolian in nature, but there have been episodes with more intense activity, possibly lava fountaining, evidenced by strong tremor and elevated surface temperatures.

Such an episode occurred during 25-28 Oct. Elevated surface temperatures were observed in satellite images beginning on October 25, and early that evening seismic tremor began to be recorded on nearby seismic stations, accompanied by stronger thermal anomalies.

New deposits of ash and ballistics darkened the summit area, indicating the activity was energetic enough to eject material from a depth of several hundred meters (~600 ft / 200 m) within the summit crater. The activity was recorded on infrasound arrays located in Akutan, 90 mi (145 km) to the southwest, and Dillingham, 363 mi (585 km) to the northeast. (AVO)

 

http://www.volcanodiscovery.com/volcanoes/today.html

[john pike]

Costa Rican authorities issued an emergency alert yesterday after ash from the erupting Turrialba volcano reached the capital San Jose and beyond. The alert came after a series of eruptions late Wednesday and early yesterday. The National Emergency Commission also ordered the closure of the national park around the volcano. In a statement, authorities said 11 people had been evacuated to temporary shelters around the town of Santa Cruz de Turrialba. Other people whose communities were threatened by ash also gathered at the town. Residents of San Jose, about 35 kilometres (20 miles) from the volcano reported smelling sulphur, while falling ash was seen as far away as Ciudad Colon, about 50 kilometres (30 miles) away. Geologist Carlos Martinez from the National Seismological Network, said the eruptions were coming from a new fissure that appeared near the crater a few years ago. He said the biggest eruption came at dawn yesterday, when a column of smoke and flame about 300 metres (1,000 feet) high forced observing scientists to retreat to safety. Authorities are also monitoring two other volcanoes -- Rincon de la Vieja in the north-west, and Poas, in the country's centre.

http://hisz.rsoe.hu/alertmap/site/index.php?pageid=event_update_read&edis_id=VA-20141031-45818-CRI&uid=15450

[john pike]

Batu Tara volcano (Flores Sea, Indonesia): intense explosive activity, small pyroclastic flow & effusive eruption last night

Tuesday Nov 04, 2014 10:59 AM | BY: T

Incandescent rockfalls from the lava dome of Batu Tara this morning (photo: Galih / VolcanoDiscovery Indonesia)

Strong strombolian explosion last evening (photo: Galih / VolcanoDiscovery Indonesia)

The volcano continues to have frequent mild to very strong strombolian, sometimes small vulcanian-type explosions, but also intermittent, short-lived effusive phases.

When observed during 1-4 Nov on our current volcano expedition, explosions occurred at intervals ranging from 5-30 minutes. A small lava dome-like structure is visible at and just below the rim of the active crater. Typically, before larger eruptions, the dome started to produce small rockfalls, presumably caused by small inflation as pressure built up. Several vents were active at the crater.

Ash plumes from the explosions reached 500-1000 m height. Bombs were ejected to up to approx. 500-600 m height and traveled up to 1 km horizontal distance.

Pyroclastic flow and effusive eruption:

An intense short-lived effusive phase took place this night: at around 2 am local time, a powerful explosion was immediately followed by a short lava-rich, fountain-like explosion that initiated a large incandescent avalanche over the whole width of the sciara, causing also some parts of the upper dome to collapse. The avalanche turned into a small pyroclastic flow that reached the shore of the sciara and continued above water for approx. 100 m.

Following this event, an effusive phase began that lasted approx. 2 hours, characterized by continuous rockfalls from the glowing dome at the summit. Several hours later, the deposit from this activity at the shore was still steaming.

During the same time, some explosions occurred as well, some particular powerful ones that sent bombs into the sea and forcing us to abandon camp.

More photos / videos will be posted at a later stage.

• All news about: Batu Tara volcano
• Information about: Batu Tara volcano

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Among the observations by volcanologists conducting weekend inspections in the area around Costa Rica’s Turrialba Volcano were craters in the earth measuring up to one meter in diameter – the result of rocks shooting out from the volcano.

Experts from the National Seismological Network (RSN) and the Volcanological and Seismological Observatory of Costa Rica (OVSICORI) conducted the inspections in light of significant activity at the volcano that started last week.

RSN volcanologist Gino González Ilama said the areas of impact are located on the south side of the volcano and cover 80 percent of the slope up to 400 meters from the volcano’s crater.

“We observed the impact of volcanic rock that had caused several craters on the ground. We believe the rocks were shot out of the volcano at speeds greater than 100 kilometers per hour, and this proves there is strong activity inside,†González said.

A site near the Turrialba Volcano’s crater.

The Tico Times

 

 

http://www.ticotimes.net/2014/11/03/ash-from-costa-ricas-turrialba-volcano-reaches-province-of-limon

 

more detail in link  plus a really good video

[john pike]

Volcanoes Today, 5 Nov 2014: Popocatépetl volcano, Kilauea, Piton de la Fournaise, Sinabung, Sakurajima, Copahue

Wednesday Nov 05, 2014 09:00 AM |

Pyroclastic flow on Sinabung's western flank on 3 Nov

Updated map of the lava flow in Pahoa as of 3 Nov 2014 (no major changes until early 5 Nov))

Webcam shot of glowing bombs ejected from Popocatépetl volcano this morning

Ash emissions from Copahue 4 Nov 2014

Seismic activity under La Réunion in 2014; the black dot represents the recent earthquakes under Piton de la Fournaise volcano (image: OVPF)

Sakurajima (Kyushu, Japan): The volcano's activity is currently elevated. At least 3 explosions yesterday produced ash plumes that rose to more than 10,000 ft (3 km) altitude.

Sinabung (Sumatra, Indonesia): Growth of the viscous lava dome and lava lobe on the southeastern flank continues. Several pyroclastic flows, mostly smaller ones, have occurred from time to time during the past days.

At least some of them seem now to affect the previously untouched western flank, perhaps as the result of the changed topography at the summit due to the accumulated lava.

Kilauea (Hawai'i): USGS staff from HVO measured the lava flow yesterday and reported that "the leading edge of the flow has not advanced since last Thursday, October 30, but the flow continued to inflate, and minor breakouts were scattered across the flow interior behind the flow front.

The most significant (although still minor) breakouts were occurring about 370 meters (405 yards) above Apaʻa Street on Tuesday afternoon.

A brief helicopter overflight on Tuesday afternoon confirmed that little surface lava is present on the June 27th flow field. The outbreaks on the north and south margins of the flow near Kaohe Homesteads have also subsided relative to a few days ago."

Popocatépetl (Central Mexico): The volcano's activity remains essentially unchanged. A new lava dome is slowly growing in the inner summit crater and produces glow at night and occasional small explosions.

During the past 24 hours, activity has been a bit more intense. An explosion 20 minutes ago sent incandescent material to approx. 600 m distance outside the crater rim.

Video from the volcano's activity during the past 24 hours:at bottom of page

Copahue (Chile/Argentina): Light ash emissions occurred yesterday from the volcano. Glow continues to be visible from the crater at night.

SERNAGEOMIN keeps the volcano's alert status unchanged at yellow.

Piton de la Fournaise (La Réunion): There are signs that a new eruption could be on its way: an increasing number of shallow earthquakes has been registered under the volcano recently.

The volcano observatory (OVPF) and the prefecture raised the alert level to 1 (on a scale of 0-3), which includes some access restrictions to the enclos (the caldera of the volcano) ##############

 

 

 

[john pike]

Volcanic activity worldwide 6 Nov 2014: Santiaguito volcano, Popocatépetl, Bardarbunga, Kilauea, Fu...

Thursday Nov 06, 2014 14:27 PM |

Webcam view of the eruption this afternoon (Mila webcam)

Smaller pyroclastic flow at Sinabung today

Updated map of the lava flow in Pahoa as of 5 Nov 2014 local time (HVO)

Explosion at Popocatépetl ejecting incandescent material on the upper flanks on the evening of 4 Nov

Ash plume from an explosion at Santiaguito on 3 Nov 2014

Bardarbunga (Iceland): The Holuhraun fissure eruption continues with amazing stability. By now, more than 1 cubic kilometers of magma has been erupted and covers almost 70 square km (which implies an average thickness of 15 meters).

The depression in the ice above the caldera continues to deepen, likely a combined result of increased melting due to increased geothermal heat flow and the continuing subsidence of the caldera itself.

Sinabung (Sumatra, Indonesia): Several, but generally smaller pyroclastic flows occurred today at the volcano. They affected the southern slopes.

Kilauea (Hawai'i): The lava flow in Pahoa has not advanced at its leading edge and only minor breakouts have enlarged it at its sides.

According to HVO and visual impressions, current supply rates are low, giving the town some extra time for the time being - until a new surge of lava arrives at the flow front to give it a new push.

From HVP's most recent update:

Popocatépetl (Central Mexico): The volcano remains a little bit more agitated when compared to most of the past weeks. Strong glow at the summit indicates magma arriving in the inner crater to add to the new lava dome. Small occasional explosions and near-constant steam and gas emissions accompany this process.

CENAPRED commented on the elevated phase of activity that occurred during 4-5 November. A series of approx. 200 small explosions started on 20h local time on 4 Nov, producing a continuous plume of steam, gases and small amounts of ash of about 1 km in height, and the discontinuous emission of incandescent fragments onto the northern and eastern outer slopes to distances of 800 m from the crater rim.

This phase was visible on seismic recordings. It is likely to correspond to a phase of more intense lava dome growth. It is not thought to be a precursor of stronger activity in the near future and the alert status remains unchanged at "Yellow Phase 2".

Santiaguito (Guatemala): Explosive activity has returned to the Caliente lava dome after several months of absence. At least 3 explosions per day were seen during the recent days.

Most of them were small, but some produced plumes reaching several hundred meters in height. At the same time, the viscous lava flow to the southeast remains active and continues to advance slowly.

Fuego (Guatemala): Activity has been relatively weak today, with mostly smaller and only one medium-sized explosion recorded by the observatory.

The latter produced an ash plume rising 800 m and drifting 10-12 km to the SW, causing light ash fall in Panimache, Morelia, Santa Sofia, Panimache II and nearby areas.

[john pike]

6.1 - 74km SW of Ile Hunter, New Caledonia 2014-11-10 10:04:21 UTC

PAGER - GREEN ShakeMap - III DYFI? - I

Return to the EQ List/Map/Search

Google Earth KML

Summary

Location and Magnitude contributed by: USGS National Earthquake Information Center

General

22.775°S, 171.445°E

Depth: 10.0km (6.2mi)

Event Time

1. 2014-11-10 10:04:21 UTC
2. 2014-11-10 21:04:21 UTC+11:00 at epicenter
3. 2014-11-10 10:04:21 UTC+00:00 system time

Location

22.775°S 171.445°E depth=10.0km (6.2mi)

Nearby Cities

1. 74km (46mi) SW of Ile Hunter, New Caledonia
2. 478km (297mi) ESE of We, New Caledonia
3. 503km (313mi) E of Mont-Dore, New Caledonia
4. 516km (321mi) E of Noumea, New Caledonia
5. 518km (322mi) E of Dumbea, New Caledonia

Related Links

• View location in Google Maps

Tectonic Summary

Seismotectonics of the Eastern Margin of the Australia Plate

The eastern margin of the Australia plate is one of the most sesimically active areas of the world due to high rates of convergence between the Australia and Pacific plates. In the region of New Zealand, the 3000 km long Australia-Pacific plate boundary extends from south of Macquarie Island to the southern Kermadec Island chain. It includes an oceanic transform (the Macquarie Ridge), two oppositely verging subduction zones (Puysegur and Hikurangi), and a transpressive continental transform, the Alpine Fault through South Island, New Zealand.

 

http://earthquake.usgs.gov/earthquakes/eventpage/usc000svzi#summary

 

volcanoes closeby

 

possibly should be in earthquake thread but close enough to a couple of volcanoes to leave here for now

 

 

Edited November 10, 2014 by john pike

[john pike]

KÄ«lauea volcano eruption update

Lava burns first Pahoa house as flow widens

Update Tue 11 Nov 06:00

Today lava reached and burned an unoccupied home on private property near the transfer station on Apa`a Rd. Lava first flowed nearby on October 25, with the front approximately 50m/yds wide and 75m/yds away from the residence. The main flow went by, and after stalling near Pahoa Village Rd has widened upslope and nearby the transfer station. This is the first residence destroyed by lava from Pu`u `O`o since Jack's Lava House in March 2012.

County of Hawaii media image of burning house on November 10, 2014 on the outskirts of Pahoa village.

Latest update map from USGS-HVO showing lava near transfer station on November 10.

2-week old map of lava flow first crossing the residence area on October 26 for comparison.

http://www.volcanodiscovery.com/hawaii/kilauea/current-activity.html

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Monday, Nov 10, 2014

Sabancaya volcano (Peru) activity update

A pilot reported an ash plume yesterday rising to approx. 6 km altitude. Webcam imagery shows a degassing plume mixed with possibly light ash content. Seimic activity is elevated. (VAAC Buenos Aires)

 

http://www.volcanodiscovery.com/sabancaya/news.html

[john pike]

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Monday, Nov 10, 2014

Bagana volcano (Bougainville Island, Papua New Guinea) activity update

Eruptive activity at the volcano continues. Several ash plumes were observed on satellite imagery during the past days, indicating continuing explosions.

VAAC Darwin estimated the altitude of the ash plumes extending several tens of km to the south at 10,000 ft (3 km).

 

http://www.volcanodiscovery.com/bagana/news.html

[john pike]

KÄ«lauea volcano eruption update

Lava flow branch building momentum

Update Thu 13 Nov 19:57

An upper branch of the active lava flow has advanced roughly 375m/400yds over the past 2-3 days to within 300m/325yds of Apaʻa Street, on the other side of the recycling & waste transfer station.

Lava also continues to fill the driveways surrounding that facility and continues to threaten nearby power poles, which have been upgraded to steel, heavily insulated to a height of ~5m/15ft, and sprayed with water and foam by firefighters as part of this evolving experiment. Finally, the flow near the cemetery continues to widen to the north after burning the first residence in the area.

Pressure at the summit has fluctuated but generally remains high, giving no indication of any decrease of lava flows in the near future.

USGS-HVO photo of active lava flow areas on November 12, 2014.

Latest update map from USGS-HVO showing the quickening lava flow branch.

[john pike]

Volcanoes Today, 14 Nov 2014: Santiaguito volcano, Pacaya, Fuego, Ibu, Pavlof, Monowai, Stromboli, Reventador

Friday Nov 14, 2014 08:00 AM |

Strombolian eruption from a vent in the center of Ibu's lava dome

Pumice raft observed on 31 Oct near Monovai seamount (RNZAF via GeoNet)

Lava fountains from the new eruption at Pavlof volcano (image: AVO)

Eruption at Santiaguito yesterday (INSIVUMEH)

Current seismic signal (PCG station, INSIVUMEH)

Ash plume from an explosion at Fuego on 12 Nov (INSIVUMEH webcam)

Stromboli (Eolian Islands, Italy): Occasional mild strombolian explosions occur from the summit vents. Very weak lava effusion also continues, at least intermittently from the vent at 650 m elevation. (Source: INGV Catania latest report)

Ontake-san (Honshu): JMA reported that cloud cover often prevented visual observations of Ontakesan during 5-11 November; white plumes rose 200-300 m above the crater rim and drifted NE, E, and SE.
The Alert Level remained at 3 (on a scale of 1-5).

Suwanose-jima (Ryukyu Islands): Tokyo VAAC reported a small eruption this morning, producing an ash plume to 6,000 ft (1.8 km) altitude.
At least intermittently, the volcano continues to produce strombolian explosions of varying intensity.

Mayon (Luzon Island): During 5-11 November white plumes rose from Mayon's crater and drifted S, SW, WSW, WNW, and NW, sometimes downslope. Weak incandescence from the crater was noted some nights.
As many as five volcanic earthquakes were recorded per day. The Alert Level remained at 3 (on a 0-5 scale). (Smithsonian / USGS Weekly Volcanic Activity Report 5-11 November 2014)

Ibu (Halmahera, Indonesia): When observed during 12-13 Nov, there was frequent mild to moderate explosive activity from at two different vents in the center of the lava dome.
No activity was observed at the lava dome itself. The vent to the south is surrounded by a recent-looking cinder cone, about 30 m tall and 60 m wide, and produced likely phreatomagmatic explosions at intervals of 20-30 mintues. These typically seemed to start from a cluster of vents inside the cone's crater, ejecting dense white steam as well as gray ash plumes, sometimes followed by dense black tephra jets reaching 10-20 m in height. Sometimes, the ash plumes collapsed to form small pyroclastic flows running down the western slope of the cone. At night, weak incandescence could be seen and only few glowing bombs were ejected during these eruptions.

The sencond vent to the north of the cinder cone had typical strombolian explosions which ejected many incandescent lava bombs to 100-200 m height and produced billowing ash plumes rising up to 500 m.
A possibly third vent in the same area of the second one often had phases of intense degassing that lasted several minutes with increasing strength. Accompanied by loud jet-engine like sounds, a dense steam plume was erupted, followed by dilute ash at the end of the degassing event.


Monowai (Kermandec Islands, New Zealand): New Zealand scientists concluded that most likely 3 UNDERWATER eruptions occurred during this October at the SHALLOW submarine volcano, one of the most active ones in the Tonga-Kermadec arc.
This conclusion was based on both the observation of a pumice raft in the area on 31 Oct and the analysis of so-called T-waves, a particular kind of acoustic waves that propagate well in the ocean and have been found to be typically associated with submarine eruptions from Monovai seamount.~~~~~~~~~~

These T-waves were recorded Rarotonga, Polynesia, more than 1800 km from the volcano. They show 3 periods of possible activity at Monovai: during 16-22 Oct, 23-27 Oct and 30 Oct - early Nov. The latter corresponds well with the observation of the pumice raft on 31 Oct by the NZ airforce.

 

Pavlof (Alaska Peninsula, USA): A new eruption began at the volcano on 12 Nov afternoon about 3:00 pm AKST (00:00 UTC on 13 November). The eruption comes from a vent at the upper northern flank just below the summit and has been characterized by ash emissions to about 9000 feet (2.7 km), lava fountaining and avalanches of rock debris and ash descending the north flank of the volcano.
Minor ash emissions were visible in the FAA-operated web camera in Cold Bay beginning around 4:50 pm AKST yesterday (1:50 UTC on 13 November). Observations from ground observers in Cold Bay coincided with a subtle but distinct increase in seismic activity, and the appearance of a thermal signal at the summit of Pavlof evident in satellite images at 5:40 pm AKST (02:40 UTC 13 November).
Since these initial reports of activity, seismic activity has continued to increase gradually and the thermal signal at the summit remains evident in satellite data. Cloud cover has obscured the volcano and no new observations on ash emissions are available. However, the level of seismicity suggests that ash emission continues. (AVO)

Santiaguito (Guatemala): Both explosive and effusive activity continue from the Caliente lava dome.
The observatory reports weak ash explosions ejecting plumes that rise approx. 500 m. The length of the viscous lava flow to the SE is now more than 3.3 km long and has two active fronts, one inside the Nima1 river bed, the other outside its banks.

Pacaya (Guatemala): It seems new strombolian explosive activity has started around 10-11 November from the Mackenney crater.
INSIVUMEH reported in its special bulletin that an increase in gas emissions as well as fine ash expulsions have been observed. Together, they form plumes reaching 3000 m altitude and drifting SW for approx. 7 km.
The seismic signal shows elevated activity as well. This could be the beginning of a new episode of strombolian activity, which in turn would slowly start building a new cone inside the Mackenney crater.

Fuego (Guatemala): Explosive activity from the volcano has slowly been increasing over the past 1-2 weeks. Eruptions of moderate size with ash plumes up to more than 1000 m height have become more frequent.
Shock waves could be felt in up to 20 km distance and rattled windows and roofs of houses in villages around the volcano.

Reventador (Ecuador): IG reported moderate volcanic activity including explosions, long-period earthquakes, harmonic tremor, and tremor at Reventador during 5-11 November.
On 11 November steam plumes with a minor ash content rose 1 km and drifted NW. Cloudy conditions frequently obscured views of the summit. (Smithsonian / USGS Weekly Volcanic Activity Report 5-11 November 2014)

Edited November 14, 2014 by john pike

[john pike]

VONA/KVERT WEEKLY INFORMATION RELEASE 46-2014
Kamchatkan and Northern Kuriles Volcanic Activity
November 13, 2014, 21:26 UTC (November 14, 2014, 09:26 KST)

KVERT monitor 30 active volcanoes of Kamchatka and 6 active volcanoes of Northern Kuriles. Not all of these volcanoes had eruptions in historical time, however they are potentially active and therefore are of concern to aviation.

 

http://www.kscnet.ru/ivs/kvert/index_eng.php

[john pike]

Pavlov volcano news & activity updates: Pavlof volcano (Alaska) activity update: eruptino intensifies, ash to 25,000 ft

Sunday Nov 16, 2014 01:53 AM | BY: T

Satellite image of the ash plume from Pavlov last night (15 Nov, 23:00 UTC)

The Alaska Volcano Observatory (AVO) reports that "the eruption that began on November 12 has intensified and the ash cloud height is currently estimated at 25,000 ft above sea level.~~~~~

Thus, the Aviation Color Code has been raised to RED and the Volcano Alert Level to WARNING.

The intensity of seismic tremor has increased significantly over the past 6 hours, and satellite data indicate that the ash cloud is now at an altitude of 25,000 ft above sea level. As of 11:00 am AKST (20:00 UTC) the cloud is moving towards the northwest and extends for about 125 miles (200 km) downwind." (AVO)

• All news about: Pavlof volcano
• Information about: Pavlof volcano

[knocker]

Pavlof plume: coldest VIIRS cloud-top IR temp -55ºC; close to tropopause on morning Cold Bay rawinsonde http://go.wisc.edu/3fv3wp 

 

Pavlof volcanic ash plume towering above lower cloud deck; pilot report est top at 35kft; GOES-15 visible http://go.wisc.edu/wz8zxq 

Edited November 17, 2014 by knocker

[john pike]

Volcanoes Today, 19 Nov 2014: Shiveluch volcano, Sinabung, Dukono, Reventador, Copahue

Wednesday Nov 19, 2014 04:00 AM |

Smaller pyroclastic flow at Sinabung this morning

Shiveluch (Kamchatka): A series of eruptions occurred during the past days from the volcano's growing lava dome. Tokyo VAAC issued alerts about ash plumes rising up to 30,000 ft (9 km) altitude.

Bad weather prevented detailed observations, but most likely, several explosions and/or avalanches with pyroclastic flows occurred.

Ash was dispersed to southerly directions.

Sinabung (Sumatra, Indonesia): The volcano continues to produce occasional (generally smaller) pyroclastic flows triggered by collapsing parts of the still active lava lobe on the upper southeastern flank.

Dukono (Halmahera): A more intense explosion occurred at the volcano, sending an ash plume to estimated 2.4 km altitude this morning (VAAC Darwin). The plume drifted 15 km to the south.

Reventador (Ecuador): Activity at the volcano continues with little changes. Occasional small explosions are being reported to occur from the active lava dome in the crater.

Copahue (Chile/Argentina): The volcano remains restless. Intermittent small to moderate ash emissions from the El Agrio crater and night-time glow continue to be observed at the volcano.

SERNAGEOMIN keeps the alert status at yellow, apparently because no other monitored parameters indicate more elevated activity to be expected soon.

[john pike]

The Colima volcano in western Mexico has erupted, sending a column of ash about 3 miles (5 kilometers) into the air. Mexico's federal civil defense office said Friday that ash has fallen on towns as far as 15 miles (25 kilometers) from the peak, which is also known as the Volcano of Fire. Glowing hot rock tumbled down the volcano's flanks over a mile (2 kilometers) from the crater. The office says the eruption is much lower in intensity than ones in 2005 that forced evacuations. No injuries or evacuations were reported Friday. The 12,533-foot (3,820-meter) volcano is 430 miles (690 kilometers) northwest of Mexico City, on the border of Colima and Jalisco states. It is one of the most active and potentially destructive volcanoes in Mexico.

 

http://hisz.rsoe.hu/alertmap/site/index.php?pageid=event_desc&edis_id=VE-20141122-46080-MEX

 

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Stromboli volcano (Eolian Islands, Italy): weak explosive activity at summit vents, increased CO2 emissions

Saturday Nov 22, 2014 10:08 AM | BY: T

Strombolian acttivity at the summit vents of Stromboli (INGV)

CO2 flux measured on Stromboli (INGV)

Lava effusion seems to have stopped completely since about a week ago. Small strombolian explosions continue to occur sporadically from vents in the northern and central crater terrace at the summit.
The apparent low activity may be the "calm before the storm": a surge in CO2 gas emissions since the beginning of November indicates that fresh magma might be on the rise within the conduit (CO2 being the least soluble magmatic gas and the first to leave the new magma).
One possibility is that the arrival of new magma leads to a strong initial (and very dangerous) explosion. This scenario occurred in 2003 and 2007 during similar stages of activity (after the end of a sustained lava flow).

• All news about: Stromboli volcano
• Information about: Stromboli volcano

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Reventador volcano (Ecuador) activity update: new lava flow on upper NW flank

Saturday Nov 22, 2014 10:35 AM | BY: T

Infrared image of the lava flow on Reventador volcano on 10 Nov (IGEPN)

A new lava flow is active on the upper NW flank of the volcano, originating from the base of its lava dome. Likely, the flow started in mid to late October; on 19 Nov, it had a length of less than 1 km.

• All news about: Reventador volcano
• Information about: Reventador volcano

Edited November 22, 2014 by john pike

[john pike]

Dukono volcano news & eruption updates

latest (Apr-Nov 2014) | Jan-Mar 2014 | 2013 | archive

Saturday, Nov 22, 2014

Dukono volcano (Halmahera, Indonesia) activity update

A series of stronger explosions and/or elevated ash emissions produced a plume at 8,000 ft (2.4 km) altitude extending almost 150 km to the west of the volcano.