General Volcanic Activity Thread!

[john pike]

 

 

You've heard of "red hot" and "white hot" to describe searing temperatures. But what about "blue hot"?

That's the surreal hue of Indonesia's Kawah Ijen Volcano, which glows with an otherworldly "blue lava" at night. The mountain contains large amounts of pure sulfur, which emits an icy violet color as it burns, turning the rocky slopes into a hot (at least 239 degrees Fahrenheit), highly toxic environment.

http://www.huffingtonpost.com/2014/01/16/blue-lava-volcano-photos-kawah-ijen-indonesia-_n_4610337.html

[john pike]

The volcano experienced an earthquake swarm during 14-15 January, IGP reported in its latest bulletin. An increase of approx. 25% in seismic activity overall with respect to last year's average was calculated, but IGP stresses that this activity is still low and does not suggest new activity in a near future. According to the report, a total of 418 seismic events were recorded during the first half of January, most of them during the swarm that occurred on 14-15 Jan when almost 120 quakes were registered within 17 hours. From these events, 144 were so called long-period quakes (internal fluid movements), 269 volcano-tectonic earthquakes (internal rock fracturing) and 5 short pulses of tremor (internal vibration). El Misti, which is only 17 km from the center of Arequipa city, is one of the countries major and most active volcanoes. Due to its closeness to a large city and its history of explosive eruptions, it is also one of the most dangerous volcanoes in South America, and clearly one that deserves being closely monitored.

 

Volcano Activity in Peru on Friday, 17 January, 2014 at 09:14 (09:14 AM) UTC.

 

http://hisz.rsoe.hu/alertmap/site/?pageid=event_desc&edis_id=VA-20140117-42327-PER

[john pike]

 

http://tours.volcanodiscovery.com/view_news/41207/Video-from-Erta-Ale-volcano.html

[john pike]

Sakura-Jima volcano news

latest (2014) | Sep-Dec 2013 | Jun-Aug 2013 | archive

Friday, Jan 17, 2014

Sakurajima volcano (Kyushu, Japan) activity update

Vulcanian-type explosions, which presented a spectacular show during much of the past year, are again becoming more frequent at the volcano, with now averaging one event per day. This is still very low compared to most of last year, but a significant increase compared to the past 3 weeks when there were almost none.

 

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

[john pike]

Sinabung volcano (Sumatra) - eruption continues with no clear trend

 

 

Visual and seismic data ("Letusan"=explosions, "Guguran"= pyroclastic flows) for the past weeks (VSI)

NASA Earth Observatory image of Sinabung on 16 Jan, taken by Jesse Allen and Robert Simmon, using EO-1 ALI data from the NASA EO-1 team. Caption by Robert Simmon.

Tilt data (VSI)

Gas monitoring data

Activity at the volcano has been a bit lower during the past days, especially when compared to the first half of the past week. It is certainly too early to say whether this is a sign of a possible approaching end of the of the eruption or just a temporary or perhapy only apparent decrease.

VSI has published a detailed report about their seismic and other monitoring data up up 17 Jan. It doesn't include the past days, but illustrates the marked peak in activity during 10-15 Jan. Deformation and other monitoring data have been limited by several stations having become non-operational because ash covering the solar panels and other technical difficulties in maintaining them.

However, the still working tiltmeter station Lau Kawar station at 1468 m elevation on the (so far little affected) northern slope of the mountain shows a strong inflation period between 10-14 Jan, which likely corresponds to the arrival of new magma from depth and with the observed increased pyroclastic flow activity during that time.

The latest available data from seismic, tilt, GPS, and gas monitoring show no clear trend during the latest few days still included in the published data.

---

Links / Sources:

[*]Evaluasi status kegiatan Awas (level IV) G. Sinabung Tanggal 10 – 17 Januari 2014 - Lampiran | Badan Geologi - Kebencanaan Geologi (VSI)

[john pike]

Volcanic activity worldwide 20 Jan 2014: Sinabung, Karymsky, Shiveluch, Dukono, Aso

Monday Jan 20, 2014 18:03 PM |

Steaming from Shiveluch's lava dome yesterday

Steaming Nakadake crater, Aso volcano (Japan)

Karymsky (Kamchatka): The volcano continues to produce sporadic strombolian and small vulcanian explosions. VAAC Tokyo reported a small ash plume yesterday at 10,000 ft (3 km) altitude.

Shiveluch (Kamchatka): The volcano has been a bit calmer over the past days with no significant explosions / ash emissions from the (active) dome reported. Most of the time, the volcano is covered in clouds, but occasional views show intense degassing.

Aso (Kyushu): Activity at the volcano has decreased although the Nakadake crater with its 2 active vents continues to emit an abundant steam plume, mixed perhaps sometimes with dilute ash. Glow can no longer be seen at night, or at least it has become extremely weak.

Sinabung (Sumatra, Indonesia): Aris Yanto (NdesoAdventures) who is currently on location sent us some impressions from the activity at Sinabung volcanotaken during 16-20 Jan 2014.

As of today, after a few days of relative calm with only rockfalls but no significant pyroclastic flows, activity has picked up again and the volcano produced a few small to medium-sized pyroclastic flows. Ash plumes were reported to reach a maximum of approx. 20,000 ft (6 km) altitude.

Dukono (Halmahera): A volcanic ash plume was reported by VAAC Darwin this morning. Its estimated altitude was 10,000 ft (3 km) and it extended 85 nautical miles to the east.

 

 

 

 

http://www.volcanodiscovery.com/volcano-activity/news/41587/Volcanic-activity-worldwide-20-Jan-2014-Sinabung-Karymsky-Shiveluch-Dukono-Aso.html

[Tom Jarvis]

here is a video from James Reynolds  James Reynolds â€@typhoonfury 5h

Staring down throat of very angry volcano today - video of pyroclastic flows at Sinabung volcano in Indonesia http://www.youtube.com/watch?v=JsugV4Wz6aA&feature=youtu.be â€¦

[Tom Jarvis]

some more footage from earlier today

James Reynoldsâ€@typhoonfury56 mins

Footage of Sinabung volcano's full fury today now up, some of most amazing footage I've ever shot - http://www.youtube.com/watch?v=95bYATFIOxs …

[john pike]

Volcanoes Today, 21 Jan 2014: Shiveluch, Kilauea

Tuesday Jan 21, 2014 10:03 AM |

Ash column rising from Shiveluch volcano this morning

Shiveluch (Kamchatka): A relatively large explosion occurred this morning at the volcano. An ash plume rose to estimated 28,000 ft (8 km) altitude and drifted WSW. Following the eruption, the volcano continued to produce intense degassing and minor ash venting, and glow from the active lava dome is visible on night-time webcam images.

Kilauea (Hawai'i): Booming sounds from Kilauea summit this week, heat from high lava lake cracks the crater walls! Levels dropping again now in natural cycle.

[The PIT]

Great video here http://www.wired.com/wiredscience/eruptions/

[damianslaw]

New in this thread, so sorry if the following questions have already been raised and answered, but reading climate history and worldwide weather events, there has been a strong correlation between major volcanic eruptions coinciding with global cooling so to speak. I think the last major volcanic eruption which has thought to have influence global temperatures was back in 1991 - not sure which volcano but the following year was quite a cold one.. Am I correct in this?

 

Also wasn't the very cold year of 1816 blamed on a volcanic eruption?

 

How violent and impacting does a volcanic eruption have to be to have such effect? Apart from the Iceland event I don't recall many volcanic eruptions making the news for a good long while..

 

I wonder whether the Iceland event had an impact on the severe cold conditions we experienced in late 2010? Is there any paper on this?

 

Reading the solar cycle thread - there is a belief a period of low solar activity combined with major volcanic activity can induce a marked cooldown in global conditions..

[john pike]

hi damian

 

hope your well

 

i will pm you the answers at some stage

 

and will explain why when i do

 

regards

 

john

[lorenzo]

New in this thread, so sorry if the following questions have already been raised and answered, but reading climate history and worldwide weather events, there has been a strong correlation between major volcanic eruptions coinciding with global cooling so to speak. I think the last major volcanic eruption which has thought to have influence global temperatures was back in 1991 - not sure which volcano but the following year was quite a cold one.. Am I correct in this?

 

Also wasn't the very cold year of 1816 blamed on a volcanic eruption?

 

How violent and impacting does a volcanic eruption have to be to have such effect? Apart from the Iceland event I don't recall many volcanic eruptions making the news for a good long while..

 

I wonder whether the Iceland event had an impact on the severe cold conditions we experienced in late 2010? Is there any paper on this?

 

Reading the solar cycle thread - there is a belief a period of low solar activity combined with major volcanic activity can induce a marked cooldown in global conditions..

 

This paper on the strat. featured analysis on volcanic activity. http://www-atm.physics.ox.ac.uk/user/mitchell/mitchell2011_jgr.pdf 

 

3 eruptions stand out in both types of measurement.Mt. Agung, which erupted on 17 March 1963; El Chichón,

which erupted on 29 March 1982; and Mt. Pinatubo, whicherupted on 7 June 1991. Since the lifetime of sulphate in the

stratosphere is ∼1–3 years, we assume that the 2 wintersfollowing an eruption are volcanically influenced.

 

hi damian

 

hope your well

 

i will pm you the answers at some stage

 

and will explain why when i do

 

regards

 

john

 

John, also would be interested to know your answers to the above questions. Any thoughts on the Kamchatka activity and it's influence is also of interest..

[john pike]

http://www.youtube.com/watch?v=b2hY6-p-LzA

 

amazing video

 

 

 

 

hi lorenzo

 

i will come back to you soon

[john pike]

Volcanic activity worldwide 22 Jan 2014: Pacaya, Fuego, Sakurajima, Etna, Santa María / Santiaguito...

Wednesday Jan 22, 2014 10:57 AM |

Medium-sized explosion from Sakurajima this morning

Ash plume from an eruption at Suwanose-jima this morning

Colima's western flank seen during an overflight a week ago (Unidad Estatal de Protección Civil y Bomberos, Jalisco)

Small eruption from Popocatépetl yesterday

MODIS hot spot data (past 2 days) for Pacaya volcano (ModVolc, Univ. Hawaii)

Fuego's seismic signal this morning (FG3 station, INSIVUMEH)

Current seismic signal from Nevado del Ruiz volcano (OLL station, INGEOMINAS)

Etna (Sicily, Italy): Since last night, sporadic small strombolian explosions have resumed at the New SE crater. The current tremor signal is low, but if Etna continues its activity as during much of last year, this could be a first precursor to a new paroxysm in the following days.

 

 

Gorely (Southern Kamchatka): No changes were reported by KVERT. The volcano continues to show intense degassing and elevated seismic activity.

Gorely, one of currently 5 volcanoes at unrest or in eruption in Kamchatka remains at Aviation Color Code yellow, along with Bezymianni and Tolbachik, while currently erupting Shiveluch and Karymsky volcanoes are at orange.

Karymsky (Kamchatka): The volcano continues to have sporadic small to medium-sized strombolian-vulcanian explosions from its summit crater. Small ash plumes are regularly being detected on satellite imagery.

Shiveluch (Kamchatka): Another explosion was reported this morning by KVERT via VAAC Tokyo. An ash plume rose to estimated 27,000 ft (8 km) altitude.

Tolbachik (Kamchatka): Although no new eruptive activity has been recorded in the past months, the volcano continues to be at Aviation Color Code yellow. Moderate seismic activity of the volcano continues. Satellite data showed a weak thermal anomaly over the northern area of Tolbachinsky Dol. (KVERT)

Bezymianny (Central Kamchatka): KVERT reports "no detectable seismicity. Moderate gas-steam activity was observed. Satellite data showed the volcano was quiet."

Sakurajima (Kyushu, Japan): The volcano had an explosion this morning followed by near-continuous ash venting. The eruption sent an ash plume over Tarumizu town to the SW (see video). VAAC Tokyo estimated the maximum height of the ash plume to 17,000 ft (5 km), but webcam images suggest a significantly smaller size (2-3 km altitude). Overall, the volcano has been comparably calm over the past week.

 

 

 

Suwanose-jima (Tokara Islands, Japan): The volcano continues to be in eruption. It regularly has (probably strombolian-type) explosions that produce small to medium-sized ash plumes up to 1-2 km in height.

Sinabung (Sumatra, Indonesia): Activity at the volcano continues at reduced rate. The lava dome continues to be active with intense degassing and ash venting, and has produced a series of sporadic smaller pyroclastic flows over the past days.

Colima (Western Mexico): The volcano produces small explosions (reportedly 7-12 daily) generating small ash plumes up to about 1 km high.

An overflight revealed no significant changes at the summit crater where a lava dome is still growing at slow rate and produces small avalanches on the western side. Civil Protection warns of landslides from the steep slopes where a lot of fresh flows and loose material has accumulated over the past months.

... [read more]

Popocatépetl (Central Mexico): The volcano remains at low activity levels with little changes. CEAPRED reported 2 low-intensity emissions of steam and gas during yesterday, and 2 small explosions that produced minor amounts of ash with the largest yesterday morning at 10:28 (local time) producing a plume reaching 1000 m. Crater glow at night is visible.

Santa María / Santiaguito (Guatemala): Volcanic activity from the active dome remains more or less unchanged both explosive and effusive. The volcano observatory reports small explosions (on average 1-2 per hour), significant degassing, and weak to moderate block avalanches at the active viscous flows on the sides of the Caliente lava dome.

Pacaya (Guatemala): While explosive activity seems to have ceased, lava effusion from the southern fissure vent at the base of the Mackenney cone continues and feeds an active flow field that expands up to 3.6 km from the vent.

Slowly advancing lava flow fronts continue to burn vegetation and have cut, as in 2010, the dirt road between the villages of El Rodeo and Pocitos.

The vent on the NW flank that fed the second large flow during the recent paroxysm is no longer active. Continuous tremor and bluish degassing from the summit accompany this process. According to the latest information of CONRED, the crater floor of the Mackenney cone has collapsed into a deep pit and the active cone at the vent that had been built over the past year has vanished.

Fuego (Guatemala): It appears that activity has increased over night. A strong continuous seismic signal (probably tremor) suggests an increase in lava effusion could be occurring. The next update from INSIVUMEH later today will give a better picture.

During the past days, activity had been dominated by frequent small to medium strombolian explosions that eject abundant lava up to about 150 m above the vent, ash plumes up to 1 km high, shock waves felt in up to 10-12 km distance and continuing weak lava effusion on the upper southern flank. Its length yesterday was estimated about 200 m.

Nevado del Huila (Colombia): A small increase in volcanic-tectonic earthquakes was noted by INGEOMINAS' volcano observatory in Popayán. A total of 138 seismic events were recorded over the past week, out of 112 were volcanic-tectonic quakes and the remaining 26 events related to fluid movements inside the conduits (long-period quakes and one tremor pulse).

Two earthquakes above magnitude 3 occurred on 17 and 19 January,, the latter (mag. 3.4) was felt in the village of Sin Candela and areas of Paez (Cauca).

Machin (Colombia): The volcano continues to be at yellow alert (one of 6 in Colombia) as seismic activity remains elevated, but at low energy levels.

Galeras (Colombia): Pasto volcano observatory reports in its weekly update persistent low levels in number and energy of seismic events, no new explosions. Two small volcano-tectonic earthquakes occurred on 15 and 20 January with magnitudes of 2.3 and 2.4 on the Richter scale.

Nevado del Ruiz (Colombia): No major changes have occurred over the past week. The volcano produces intense degassing, with steam/gas plumes rising up to 2.5 km above the crater. Seismic activity has remained similar to past weeks at fluctuating low to medium levels.

Most seismic activity observed is related to internal rock fracturing (volcano-tectonic), but there are also weak pulses of tremor and earthquakes associated with internal fluid movements and the degassing.

Cumbal (Colombia): Seismic unrest at weak energy levels continues. 5 small earthquake swarms were recorded over the past week, the most prominent having 213 events up to a maximum of magnitude 1.9 during 5 hours on 19 Jan. Most quakes are associated with rock fracturing at shallow depths (3 km) beneath the La Plazuela crater. Pasto reports no unusual surface activity at the volcano.

[john pike]

http://volcanoworld.wordpress.com/2009/03/24/how-do-volcanoes-affect-the-atmosphere-and-climate/

 

http://www.geology.sdsu.edu/how_volcanoes_work/climate_effects.html

 

http://www.farmersalmanac.com/weather/2007/09/09/how-do-volcanoes-affect-our-weather/

 

http://volcanoes.usgs.gov/hazards/gas/index.php

 

http://denali.gsfc.nasa.gov/research/so2/article.html

 

hi lorenzo read the above

 

the problem we have is we have had

 

88 eruptions in 2011

 

69 in 2012

 

89 2013

 

all these have been in different areas but a bulk in the pacific ridge

 

the so2 in the atmosphere is suppose to also cause more cloudcover

 

there is pages on 1 big eruption and how it effects our climate

 

but none on a set up where we have had a lot of eruptions

 

but not a huge one

 

the other questions are the underwater volcanoes

 

http://www.environmentalgraffiti.com/featured/incredible-underwater-volcanoes/7827?image=4

 

http://www.amnh.org/education/resources/rfl/web/dsv/volcanoes.html

 

how they effect local sea temps is still an unknown at present

 

 

http://en.wikipedia.org/wiki/Jet_stream

 

http://www.netweather.tv/index.cgi?action=jetstream-tutorial

 

however the jet is suppose to follow warm and cold flows from the sea

 

also the solar output is believed to have an effect on the jet and volcanic output as well

 

http://www.unisci.com/stories/20022/0613022.htm

 

so overall my answer to your question is somewhere mixed up in the links above

 

 

 

 

http://www.volcanodiscovery.com/volcano-map.html

 

have a read of the above and flick through the thread

 

theres plenty going on at present

[john pike]

http://thewatchers.adorraeli.com/2014/01/23/active-volcanoes-in-the-world-january-15-january-21-2014/

[john pike]

Volcanoes Today, 24 Jan 2014: Santa María / Santiaguito, Fuego, Shiveluch, Dukono, Sinabung, Suwanose-jima, Etna, Kilauea

Friday Jan 24, 2014 12:03 PM |

thermal webcam image of the lava flow ( by courtesy of INGV-OE Catania)

The New SE crater of Etna seen from Schiena dell'Asino this evening

Glow from the active lava dome of Shiveluch volcano yesterday evening

Ash emission from Suwanose-Jima volcano this morning

Steam / ash plume rising fro Sinabung this morning

The Caliente lava dome of Santiaguito volcano on 23 Jan

Small explosion from Fuego volcano yesterday

Etna (Sicily, Italy): The activity continued throughout the night with a constant lava effusion from the fissure vent at the eastern base of the New SE crater and with mild strombolian activity at the summit vent.
Seismic tremor continued to slowly but steadily increase.
...23 Jan:
Lava continues to flow from the fissure vent at the eastern base of the New SE crater towards the Valle del Leone. Mild strombolian explosions at the summit vent accompany this activity. The tremor and the intensity of this (still weak) activity are slowly increasing.

Shiveluch (Kamchatka): More ash emissions and small to moderate explosions have occurred over the past days. An ash plume was reported at 24,000 ft (7.2 km) altitude yesterday evening. ********************
The volcano, one of the world's most active, continues to effuse viscous lava that builds a new dome. At night, glow is visible from the vent on webcam images-.

Suwanose-jima (Tokara Islands, Japan): The remote volcano south of Kyushu remains very active, although seems to have calmed down a bit. The following video of the past 24 hours at the volcano shows phases near-continuous steam and ash emissions as well as some smaller discrete explosions. Ash plumes were reported to reach up to 4,000 ft (1.2 km) altitude.   ******************

 

 

 

Sinabung (Sumatra, Indonesia): A tall steam and ash plume rises from the summit crater, reaching altitudes of up to estimated 4-5 km at times.***
The volcano has not produced new (or at least no larger) pyroclastic flows. Whether this is due to a true decrease in effusion rate and a possible sign of an approaching end of the eruption is difficult to say.

Dukono (Halmahera): The volcano remains in a phase of elevated strombolian-vulcanian explosive activity. A new ash plume was spotted yesterday at estimated 10,000 ft (3 km) altitude extending 40 nautical miles to the east (VAAC Darwin).   *****************

Kilauea (Hawai'i): Lava levels are rising again in Kilauea's Overlook Crater - 10 m recovered from the 20 m drop in the last week, so far.
...24 Jan:
Kilauea's summit stretched 1.5cm in the previous month then shrank 2cm over the past week! That's a lot of rock wiggling above the magma!

Santa María / Santiaguito (Guatemala): Since the morning of 23 Jan, the lava flow front at the SE rim of the Caliente dome has become more active and generated a series of collapses resulting in small pyroclastic flows that reached the base of the dome.
The volcano observatory mentions that during the recent months, activity had been elevated with 40-45 explosions typically in one day, and associated ash plumes reaching 500-900 m height.
The prevailing easterly winds cause frequent light ash fall in distances up to 10 km to the east, sometimes even in the city of Quetzaltenango.

Fuego (Guatemala): Activity at the volcano remains both explosive and effusive at fluctuating levels. After an increase during 22-23 Jan, it decreased yesterday, but seems to have picked up today again.
The latest INSIVUMEH report mentioned 13 weak and 4 moderate explosions during 23 Jan with ash plumes up to 800 m height, abundant lava avalanches on the upper slope following strombolian ejections of up to 100-150 m above the crater, and the continued active flow, which was 100 m long yesterday. Edited January 25, 2014 by john pike

[john pike]

Volcanic activity worldwide 24 Jan 2014: Santa María / Santiaguito, Fuego, Shiveluch, Dukono, Sinab...

Friday Jan 24, 2014 13:16 PM |

thermal webcam image of the lava flow ( by courtesy of INGV-OE Catania)

The New SE crater of Etna seen from Schiena dell'Asino this evening

Glow from the active lava dome of Shiveluch volcano yesterday evening

Ash emission from Suwanose-Jima volcano this morning

Steam / ash plume rising fro Sinabung this morning

The Caliente lava dome of Santiaguito volcano on 23 Jan

Small explosion from Fuego volcano yesterday

Etna (Sicily, Italy): The activity continued throughout the night with a constant lava effusion from the fissure vent at the eastern base of the New SE crater and with mild strombolian activity at the summit vent.

Seismic tremor continued to slowly but steadily increase.

...23 Jan:

Lava continues to flow from the fissure vent at the eastern base of the New SE crater towards the Valle del Leone. Mild strombolian explosions at the summit vent accompany this activity. The tremor and the intensity of this (still weak) activity are slowly increasing.

Shiveluch (Kamchatka): More ash emissions and small to moderate explosions have occurred over the past days. An ash plume was reported at 24,000 ft (7.2 km) altitude yesterday evening.

The volcano, one of the world's most active, continues to effuse viscous lava that builds a new dome. At night, glow is visible from the vent on webcam images-.

Suwanose-jima (Tokara Islands, Japan): The remote volcano south of Kyushu remains very active, although seems to have calmed down a bit. The following video of the past 24 hours at the volcano shows phases near-continuous steam and ash emissions as well as some smaller discrete explosions. Ash plumes were reported to reach up to 4,000 ft (1.2 km) altitude.

 

Sinabung (Sumatra, Indonesia): A tall steam and ash plume rises from the summit crater, reaching altitudes of up to estimated 4-5 km at times.

The volcano has not produced new (or at least no larger) pyroclastic flows. Whether this is due to a true decrease in effusion rate and a possible sign of an approaching end of the eruption is difficult to say.

Dukono (Halmahera): The volcano remains in a phase of elevated strombolian-vulcanian explosive activity. A new ash plume was spotted yesterday at estimated 10,000 ft (3 km) altitude extending 40 nautical miles to the east (VAAC Darwin).

Kilauea (Hawai'i): Lava levels are rising again in Kilauea's Overlook Crater - 10 m recovered from the 20 m drop in the last week, so far.

...24 Jan:

Kilauea's summit stretched 1.5cm in the previous month then shrank 2cm over the past week! That's a lot of rock wiggling above the magma!

Santa María / Santiaguito (Guatemala): Since the morning of 23 Jan, the lava flow front at the SE rim of the Caliente dome has become more active and generated a series of collapses resulting in small pyroclastic flows that reached the base of the dome.

The volcano observatory mentions that during the recent months, activity had been elevated with 40-45 explosions typically in one day, and associated ash plumes reaching 500-900 m height.

The prevailing easterly winds cause frequent light ash fall in distances up to 10 km to the east, sometimes even in the city of Quetzaltenango.

Fuego (Guatemala): Activity at the volcano remains both explosive and effusive at fluctuating levels. After an increase during 22-23 Jan, it decreased yesterday, but seems to have picked up today again.

The latest INSIVUMEH report mentioned 13 weak and 4 moderate explosions during 23 Jan with ash plumes up to 800 m height, abundant lava avalanches on the upper slope following strombolian ejections of up to 100-150 m above the crater, and the continued active flow, which was 100 m long yesterday.

[john pike]

Volcanoes Today, 26 Jan 2014: Nishino-shima, Santa María / Santiaguito, Pacaya, Fuego, Gorely, Etna

Sunday Jan 26, 2014 13:03 PM |

The lava flow from Etna's New SE crater this morning

Strombolian activity at New SE crater ( by courtesy of INGV-OE Catania)

The former new island off Nishino-Shima seen on 20 Jan 2014(Japan Coast guard)

MODIS hot spot data (past 2 days) for Pacaya volcano - a significant reduction of the hot areas is visible (ModVolc, Univ. Hawaii)

Etna (Sicily, Italy): After a more vigorous phase yesterday, the effusion of the lava flow into the Valle del Bove and explosive (strombolian) activity at the New SE crater still continued this morning but have decreased in intensity.

 

 

 

Last night the mild strombolian activity picked up to become intense.
The lava flow from the fissure vent at the eastern base of the New SE crater is still alimented and descend towards Valle del Bove.
... [read more]

Gorely (Southern Kamchatka): KVERT had reduced the alert level of the volcano back to green on 23 Jan. Degassing and seismic activity had decreased significantly in December and remained at low levels since.
KVERT writes: "Activity of Gorely volcano decreased significantly on December, 2013. Volcanic tremor is not registering from December 12, 2013. A temperature of thermal anomaly decreased to minus from December 12-15, 2013. A thermal anomaly was not detecting over the volcano in January 2014. But weak seismic activity of Gorely volcano continues because it is the active volcano. Video data showed a weak or moderate gas-steam activity of the volcano."

Nishino-shima (Volcano Islands, Japan): The volcano continues to enlarge the island with lava flows, but seems to have increasingly explosive activity as well. Ash plumes to altitudes of 4,000 ft (1.2 km) were reported during the past days. These could have originated from more violent water-magma interaction (phreatomagmatic activity) or simply stronger strombolian explosions.
As recent imagery by the Japanese Coast guard shows, new lava flows continued to effuse at low rate and slowly increase the size of what started as a new island, now merged and surpassed in size the older Nishino-Shima island. On the new land, 2 vents remain active, one of which was observed to produce mild strombolian explosions and spattering of liquid lava.

Santa María / Santiaguito (Guatemala): Activity has remained essentially unchanged. The lava dome produces intermittent weak to moderate explosions (with ash plumes up to 500-700 m height) and abundant avalanches at the active block lava flow fronts, especially on the eastern and southeastern side of the dome. Collapses at these fronts can produce small pyroclastic flows.

Pacaya (Guatemala): The lava flow emission from the southern fissure vent has gradually decreased or even stopped during the past days.
The seismic signal suggests ongoing deep-seated strombolian explosions inside the new crater at the summit of the Mackenney cone.

Fuego (Guatemala): Activity at the volcano was characterized by weak to moderate strombolian explosions occurring at rates of 2-3 per hour. Abundant incandescent material is ejected and forms avalanches on the upper slopes.
Sometimes strong shock waves accompany the explosions and rattle windows and roofs of houses in the areas of Panimache, Morelia and others. Ash plumes rise to up to 700 m above the crater.
The recent lava flow seems to have stopped.

 

 

 

 

 

Edited January 26, 2014 by john pike

[john pike]

Volcanoes Today, 27 Jan 2014: Aso, Etna

Monday Jan 27, 2014 14:03 PM |

The lava flow at dawn (Photo: Emaunela / VolcanoDiscovery Italia)

Ash emission from Aso volcano this morning

Etna (Sicily, Italy): (27 Jan) The fissure vent, at the eastern base of the New SE crater, has continued to produce active lava flows along the W wall of the Valle del Bove and, according to direct observations, its fronts have reached 1700 m elevation at NE of the "Monti Centenari" . In the afternoon a moderately dense pulsating ash column was emitted by weak, deep-seated strombolian activity at the summit vent.

The North-East Crater appeared to be covered by ash deposits and strong degassing activity continued from it.

Aso (Kyushu): Another small eruption occurred this morning at the Nakadake crater. An ash plume rose a few hundred meters from one of the active vents. During the night, incandescence is visible at the crater:

 

 

 

 

 

 

 

 

 

 

 

 

[john pike]

http://globalnews.ca/news/1108248/watch-first-mount-etna-eruption-of-2014/

[john pike]

Sinabung volcano (Sumatra): eruption news and activity updates

latest (2014) | Nov-Dec 2013 | Jan-Oct 2013 | 2010

Tuesday, Jan 28, 2014

Sinabung volcano (Sumatra) - new pyroclastic flows

Pyroclastic flow from Sinabung yesterday (photo: Aris)

Ash plume after a pyroclastic flow yesterday (photo: Aris)

The volcano's lava dome continues to grow. Following a quieter interval, a new series of pyroclastic flows occurred yesterday.

According to our correspondent Aris on location, they reached about 3 km length and associated ash plumes rose to approx. 15,000 ft (4.5 km) altitude.

 

 

 

 

 

 

 

 

 

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

[john pike]

 

http://hisz.rsoe.hu/alertmap/site/index.php?pageid=seism_last&rid=381978

 

http://hisz.rsoe.hu/alertmap/site/index.php?pageid=seism_volcano&rid=381978

 

interesting seeing a swarm around this area

 

near santa clara volcano in utah

 

http://www.volcanodb.com/volcano/1053/Santa-Clara/

 

 

 

maybe nothing but an unusual swarm there at present

[john pike]

 

nice video