Volcano watch

[Sevan Makaracı]

Japan: A new island appears in the Ogasawara Islands - November 2013

Active volcanoes (Sep 28, 2012)

Source

Source

"Of course all volcanoes will explode, as this is going to be a very severe pole shift. What about the months and years preceding the pole shift? It is no secret that Mammoth Lake and the caldera of Yellowstone are warming up, and the populace has been prepared for these occurrences by the movie Volcano where there, in the middle of LA, lava is bubbling up. In fact, there is a fault line running from the approximate San Diego/LA area, up into the Sierras, and this is liable to rupture rather violently during one of the quakes that precedes the pole shift by some months. Volcanic eruptions from that area in the Sierras can be expected. Will Mount St. Helen erupt? All volcanoes that have been active within the memory of man will begin spewing and burping and oozing, and many that were not expected to become active will reactive. "   ZetaTalk - Feb 15, 2000

[Sevan Makaracı]

SEP 12 :

Seismic activity, Philippines, Taal volcano

 

Taal Volcano’s (14.0000°N, 120.9833°E) seismic network detected five (5) volcanic earthquakes during the past 24 hours.

http://www.phivolcs.dost.gov.ph/index.php?option=com_content&vi...

[Sevan Makaracı]

SEP 11 :

Indonesia, Mt.Tambora - Evacuation Plans Prepped as Mount Tambora Alert Level Is Raised

Provincial authorities raised the alert level of Mount Tambora to the second-highest available as observers noted an increase of volcanic activity in the volatile mountain.
“On August 30, we recorded seven volcanic earthquakes and since Sept. 8 the frequency of the quakes rose substantially, to between 12 and 16 per day,” Husnuddin, head of the West Nusa Tenggara Disaster Mitigation Agency (BPBD), told the Jakarta Globe on Sunday.
The BPBD chief said a team of observers had been immediately deployed to Mount Tambora.
The volcano, which was the site of the world’s deadliest eruption on record, showed no apparent visual signs of any upcoming eruption, but data collected on mechanical instruments gave cause for concern.
“We still hope Mount Tambora’s alert level will not increase further. We hope we can lower the status of the volcano. Let us all pray everything will return to normal,” Husnuddin said.
Abdul Haris from the Mount Tambora observatory station said the heightened alert status meant an eight-kilometer exclusion zone was being imposed.
“We fear there will be toxic gas as a direct result of the increased activity,” he said.
Husnuddin said the BPBD swiftly met with leaders of the three districts surrounding the volcano — Dompu, Bima and Sumbawa.
The agency also held talks with the leadership of Pekat and Tambora, two Dompu subdistricts near Tambora’s crater, to discuss possible evacuation plans if the alert status reaches the highest level. The agency also had identified locations for possible shelters to house people living around the volcano.
There are four villages in the two subdistricts that are about eight kilometers from the crater.
The BPBD requested several organizations be on stand-by, including the National Disaster Mitigation Agency (BNPB), the National Search and Rescue Agency (Basarnas) and the country’s Armed Forces, which have already deployed officials to several response stations in the two subdistricts.
Two main evacuation routes for people in the four villages have also been identified.
The volcano’s April 10, 1815, eruption killed more than 90,000 people, including some who died from famine and disease in the aftermath of the event. It is estimated to have had a Volcanic Explosivity Index value of seven, the only such explosion since the Hatepe eruption in New Zealand in the year 180, and only the fifth in human history.
Classified as a “supercolossal event,” Tambora’s 1815 eruption ejected immense amounts of volcanic dust into the upper atmosphere, significantly impacting the global climate for many years afterward. In Indonesia, the volcano’s roar could be heard more than 800 miles away.

http://www.thejakartaglobe.com/home/evacuation-plans-prepped-as-mou...

[Sevan Makaracı]

SEP 10 :

Iceland, Katla volcano - Two earthquake swarms during the night.

 

During the night there where two earthquake swarms in Iceland. One of this earthquake swarms was man made.

The larger earthquake swarm was in Hengill volcano and was man made. It happens and the hydrothermal plant pumps down cold water into the bedrock and changes the pressure and strain in the bedrock and nearby sediments that make up this area. The earthquakes only happens when cold water is being pumped down into the ground. When they are not pumping cold water into the ground, no earthquakes happens. Largest earthquakes in this man made earthquake swarm where ML2.5 and ML2.2 according to automatic measurements of Iceland Met Office. But most of the earthquakes where less then ML1.0 in size.
The man made earthquake swarm in Hengill volcano. Copyright of this picture belongs to Iceland Met Office.

 

 

 

The second earthquake swarm that did happen during the night was in Katla volcano. This earthquake swarm is no surprise to people how have been watching Katla volcano activity since July. This earthquake swarm in Katla volcano was however small during the night. But there did more earthquake activity in Katla volcano around 18:00 UTC yesterday. But overall it seems that Katla volcano has slowed down a bit compared to last few days.
Earthquakes in Katla volcano during the past 48 hours. Copyright of this picture belongs to Iceland Met Office.

For the moment it is rather quiet in Iceland, as there is currently not that much activity in Katla volcano. But that can change without any warning at all. As Iceland is highly active in both volcanoes and earthquakes.

Source

[Kojima]

Thanks Sevan.

* AUGUST 2  : Chile’s Puyehue-Cordón Caulle Continues To Spew Ash

* AUGUST 27 : Chile's Caulle volcano in Puyehue mountain erupted early this morning

Found this.

* Steady Eruption of Puyehue-Cordón Caulle

http://earthobservatory.nasa.gov/NaturalHazards/view.php?id=51991

A mild eruption continues at Chile’s Puyehue Cordón Caulle Volcanic Complex, almost three months since activity began on June 4, 2011. This pair of natural-color satellite images shows the steadiness of Puyehue Cordón Caulle’s activity on the morning and afternoon of August 30, 2011. According to SERNAGEOMIN, the Chilean National Service of Geology and Mining, continuous tremors were associated with the emissions of gas and ash.

These images were taken by the Moderate Resolution Imaging Spectroradiometer (MODIS) aboard the Terra (morning, top) and Aqua (afternoon, bottom) satellites. The volcanic plume is pale, almost white, and streams to the northeast of the erupting vent. The small, dark area immediately beneath the plume is a fresh lava flow emplaced during the current eruption. Several lakes downwind (east) of the volcano are colored bright blue-green by fine ash suspended in the water. Some of the lakes are still partially covered by gray floating pumice.

• Reference
• SERNAGEOMIN. (2011, August 31). Reporte Especial de Actividad Volcánica No 122 Complejo Volcánico P... Accessed September 1, 2011.

NASA images courtesy Jeff Schmaltz MODIS Rapid Response Team, NASA-GSFC.

Instrument: 

Terra - MODIS

[Sevan Makaracı]

SEP 9 :
Indonesia - Mount Tambora alert status raised to Level 3

Google Translate:
Centre for Volcanology and Geological Disaster Mitigation, issue a proclamation increasing the status of Mount Tambora in Dompu and Bima Regency West Nusa Tenggara Province from alert status to Alert Level II Level III.
In a telegram sent to the district government Dompu, numbered 667/45.03/BGV/2011 detailing letusannya famous volcanic activity with the victim during the entire history, no longer have exhaled smoke is the crater, said the Head of Active Mount Observation Post (PGA) Tambora, Abdul Haris, which is accessible from Dompu, Friday (9 / 9).

"Even though there is no exhaled smoke is the crater, but we do not disconnect status. We still continue to observe all the activity of Mount Tambora," said Abdul Haris Observation Post Mount Head On (PGA) Tambora.

It adds visual observations made ​​since the date of 30 August to 8 September 2011, all the exhaled smoke is observed craters. But on 31 August last, there were 13 earthquakes in the location of Mount Tambora.

It asks people, especially in Sub Concentrated five villages inside the foot of Mount Tambora as Country Doropeti, Concentrated, Sorinomo, Pancasila and Nangamiro to not approach the mountain.

"Line of climb for a while we are closed, as well as we reflect on people who do the activities on the slopes of Mount Tambora to undo his intention," he said.

Each activity changes of Mount Tambora on the handicapped and reported regularly to the Centre for Volcanology and Geological Disaster Mitigation in Bandung. The report also presented to the two nearest local governments that Bima and Dompu.

http://www.republika.co.id/berita/nasional/umum/11/09/09/lr8r06-sta...

[Sevan Makaracı]

SEP 9 :
Seismic activity, misc.

The following super volcanoes have had seismic activities as follows;

Whakamaru 2011-09-06 11:56:03 2.6 5 Km
Yellowstone 2011-09-06 13:18:26 2.3 2.00 Km
Campi Flegrei 2011-09-06 10:47:28 5.0 25 Km
Reporoa 2011-09-06 11:56:03 2.6 5 Km

http://hisz.rsoe.hu/alertmap/index2.php

[Sevan Makaracı]

SEP 9 :

More harmonic tremors in Katla volcano

It seems that Katla volcano is not as quiet it seems to be. For the moment the harmonic tremor seems to be small and only properly observable on one SIL station due to how weak it is at current time. So far two harmonic spikes have happened. This is most likely a hydrothermal system going crazy under the glacier close to Lágu Hvolar SIL station, rather then magma on the move (or at least that is what I think).

Harmonic tremor at Lágu Hvolar SIL station. The harmonic tremor can be seen at the end of this tremor plot. Copyright of this picture belongs to Iceland Met Office.

There has not been a lot of earthquake activity in Katla volcano during the last 24 hours or so. But that might not mean anything, as eruption can and have started without any warning at all (example: Grímsvötn volcano May 2011). So for now, it is more wait and see and more waiting it seems.

 

 

 

http://www.jonfr.com/volcano/?p=1467

[Sevan Makaracı]

SEP 8 :

Iceland, Katla volcano - Iceland’s Civil Protection Department has increased its monitoring of Katla, following increased seismic activity in the surrounding area

 

Iceland’s Civil Protection Department has increased its monitoring of the North Atlantic island’s largest volcano, Katla, following increased seismic activity in the surrounding area, according to a statement on its Web Site. “We can’t rule out that” an eruption is under way, Magnus Tumi Gudmundsson, a geologist at the Institute of Earth Science with the University of Iceland, told national broadcaster RUV. “It’s possible that magma is gathering underneath the mountain.” Gudmundsson said it was too early to say exactly what was happening at the volcano. Three earthquakes were measured in the Katla area after 7 p.m. local time, according to Iceland’s Meteorological Office. The largest quake was about 2.0 on the Richter scale, the Met Office said. Katla had two small eruptions in 1955 and 1999, neither of which managed to break the ice covering its 10 kilometer-wide (6 mile) caldera. The last major eruption in Katla began in 1918, when ash explosions from the crater didn’t subside for more than five weeks. Ash from Iceland’s Grimsvotn volcano forced flight cancelations in Scotland, northern England and Germany in May. An eruption of the Eyjafjallajokull volcano in April last year caused the cancellation of more than 100,000 flights on concern glass-like particles formed from lava might melt in aircraft engines and clog turbines. Historically, Eyjafjallajokull has been known to erupt one to two years prior to Katla.

http://hisz.rsoe.hu/alertmap/site/?pageid=event_update_read&edi...

[Sevan Makaracı]

SEP 7 :

Iceland, Katla volcano - Magma on the move in Katla volcano / Increased geothermal heat and seismic activity might indicate an upcoming eruption

While the source of the harmonic tremor yesterday in Katla volcano is not immanently clear. It is has been concluded that magma is on the move inside Katla volcano. It has been suggested that the harmonic tremor yesterday in Katla volcano is a mixture of both hydrothermal activity and water flows under the glacier. But hydrothermal activity has increased in Katla volcano since July and seems to be continuing on that path for now.

The earthquake activity in Katla volcano has been growing since July, when a sharp harmonic tremor spike did take place and was followed by a glacier flood that did destroy the Múlakvísl river bridge. But that flood did peak at ~5 meter high.

Currently the activity is quiet in Katla volcano. But that might be because the earthquakes are not being detected by the bad weather that is currently in this area (and all over Iceland for the fact).
Here is a overview of the change in activity since Week 34.


Update 1: According to news the local emergency units and police have started to review the evacuation plans and emergency plans in the case of a eruption in Katla volcano.

News about that can be read here, if you risk Google Translate.
Fara yfir áætlanir um viðbrögð (mbl.is, Icelandic, 7. Sept, 2011)

RSOE - Increased geothermal heat and seismic activity below Mýrdalsjökull glacier in south Iceland, which covers the volcano Katla, might indicate an upcoming eruption and scientists are closely monitoring the volcano. However, it is not certain that an eruption is imminent. Mýrdalsjökull and Mt. Maelifell. Photo by Páll Stefánsson. Geophysicist Magnús Tumi Gudmundsson went on an observation flight over Mýrdalsjökull yesterday. “There is always uncertainty regarding Katla and therefore it was considered necessary to fly across the glacier to shed a light on what is going on,” he told Fréttabladid. He noted that calderas and cracks in the glacier clearly showed increased geothermal heat and regular series of minor earthquakes also indicate that the volcano has been expanding recently. Gudmundsson pointed out that there is only one definite indication that an eruption in Katla is coming up. “All sources of Katla eruptions in the past 500 years mention large earthquakes that can clearly be found in Mýrdalur [by Vík] a few hours before the eruption begins. That is in fact the only absolute warning.” There was some seismic activity below Mýrdalsjökull yesterday but this morning it seemed to have subsided. The glacial river Múlakvísl also flooded but the water level peaked yesterday evening and the water flow has since decreased, ruv.is reports. The calderas which caused the flood in Múlakvísl in July are unchanged but Gudmundsson said there is a new depression in the icecap to the south of them which indicate increased geothermal heat. He added there is no clear reason for yesterday’s earthquakes.....

http://hisz.rsoe.hu/alertmap/site/?pageid=event_update_read&edi...

http://www.jonfr.com/volcano/?p=1457

[Sevan Makaracı]

SEP 7 :

Alaska, Cleveland volcano - Remote Alaska volcano might erupt soon, experts say

Alaska's Cleveland Volcano could soon be leaking from its flanks if the lava inside continues to build up, officials at the Alaska Volcano Observatory reported.

The observatory reported that the volcano's lava dome was 262 feet in diameter on August 30 and has now expanded to 394 feet.

"The presence of the lava dome increases the possibility of an explosive eruption, but does not necessarily indicate that one will occur," the observatory said. "Short-lived explosions could produce an ash cloud that exceeds 20,000 ft above sea level."

The observatory said it did not expect air travel problems if the volcano erupted.

Because "the small lava dome in the summit crater has resumed growth and now fills the floor of the crater," the observatory is raising its alert level.

The remote volcano is in the Aleutian Islands, about 940 miles southwest of Anchorage.

Because the volcano is in such a remote area, the observatory webcam feed has experienced technical difficulties.

http://news.blogs.cnn.com/2011/09/07/remote-alaskan-volcano-might-e...