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

[Howard]

Soputan Volcano Erupts In Central Indonesia, Third Volcano to Erupt in Indonesia Since Sep 15 -

Shooting ash and smoke nearly 1 1/2 kilometers into the sky, Soputan joined Lokon in North Sulawesi and Gamalama at Ternate in North Maluku, both of which erupted on Saturday, September 15.  Lokon generated a 1,500-meter high ash plume.  Soputan is about 2,160 kilometers northeast of Jakarta.

Sources

http://www.huffingtonpost.com/2012/09/18/mount-soputan-volcano-erup...

http://www.thejakartaglobe.com/news/two-volcanos-awaken-rattling-ne...

http://www.thejakartapost.com/news/2012/09/17/mount-gamalama-spews-...

[Sevan Makaracı]

EL HIERRO : 410 EARTHQUAKES IN 120 HOURS! + DEFORMATIONS

Update 17/09 – 22:09 UTC
- 105 earthquakes until 20:55 UTC
- less seismicity than the 2 prior days

Update 17/09 – 20:01 UTC
- 95 earthquakes, all the recent ones at 20 km or deeper

Update 17/09 – 17:05 UTC
- 84 earthquakes until 16:11 UTC
- Another 2 shallow quakes at 10 and 11 km , both in the El Golfo, Sabinosa area. The phenomena described in the last update is being confirmed with these quakes. The Sabinosa – El Golfo area has become active again. We are however unsure whether IGN has deliberately omitted the quakes in this area when the strong swarm started. If this was not the case (what we should find very normal) then we can speak of a changing pattern. The following hours will give a better idea of the situation

Update 17/09 – 15:36 UTC
- Is the crust starting to show cracks ? Why are we writing this ? If IGN data are correct, we have noticed a number of shallower earthquakes the last couple of hours. Nothing to be scared off, but this is definitely a change in patterns versus earlier today and the 2 preceding days.  From 12:27 until 14:39 (less than 3 hours) we have noticed 6 under 20 km earthquakes on a total of 17.
The shallowest being a 13 km, but also a 15 km and a couple of 18 km. Is the magma the cause ? IGN would probably know it but mostly keeps his information for international science conferences a couple of months later!
The shallowest one was recorded below the Sabinosa area, the area where the other 10 km were recorded last week.
- 71 earthquakes so far

Update 17/09 – 12:45 UTC
- 52 earthquakes so far (listed by IGN until 11:06 UTC). No change in depth patterns or epicenter area. I looks more and more that the island consists of solid rock where magma has a hard time to penetrate

Update 17/09 – 08:38 UTC
- “Only” 30 earthquakes listed by IGN this morning
- Hypocenters : no change in depth (hypocenter or focal depth or depth are indicating the same = layer in the underground (crust or deeper) where the energy is generated
- Epicenters : same area than yesterday centering in the historic crater area
- GPS deformations :
Restinga : 1 cm further uplifting (Ultra Rapid) – stabilized on the longitude and latitude axis (= earlier movement to the South-East)
Pinar : 1 cm uplift – pushed 1 cm further to the North – stabilized on the longitude axis (= earlier movement to the East)
Frontera : no more uplifting, 0,5 cm to the North – no change on the longitude axis since long time
The plotters under our readers can try to trace this way the source of the magma. Click here for the source of our data (courtesy Prof. Sagiya – University of Nagoya)

Source

[Sevan Makaracı]

Lates update on El Hierro volcano ;

Update 16/09 – 19:17 UTC
- 185 earthquakes until 20:49 UTC
- 1 M1.4 earthquake at 10 km, but this was the only one today at this shallow depth
- Diario El Hierro has the stunning title that IGN is analizing the earthquakes. What else could be expected from IGN ?
- Canarias7 could talk to Jose Mario Blanco (IGN). She says that she do not expect the quakes to become stronger than M3.2 at the present depth. She confirms what we wrote earlier on, that the epicenters are migrating gradually to the south.

Source

[Howard]

Violent Fuego Volcano Eruption in Guatemala - 33,000 Expected to Evacuate (Sept 13) - 

http://worldnews.nbcnews.com/_news/2012/09/13/13847747-33000-told-t...

A Guatemalan volcano erupting Thursday for the sixth time this year triggered evacuations of several towns, with more than 33,000 expected to flee.

The Fuego volcano started spewing lava some 2,000 feet down two slopes, while ash flew two miles upwards. Ash was covering homes and buildings several miles away, the government's disaster agency said.

While Fuego had erupted five times earlier this year, one scientist in Guatemala said today's eruption was the biggest since 1999.

Seventeen towns with 33,000 people are in the precautionary evacuation zone, the country's emergency response director said. By midday, more than 10,000 had fled, officials said.

The volcano sits just 6 miles southwest of Antigua, a colonial city popular with tourists. Antigua was not in the evacuation zone.

Cinders spewing from the volcano were settling a half-inch thick in many places, government volcanologist Gustavo Chicna said.

Extremely hot gases were rolling down the sides of the volcano, which was entirely wreathed in ash and smoke.

The emergency agency warned that flights through the area could be affected.

There was a general orange alert, the second-highest level, but a red alert south and southeast of the mountain, where, Chicna said, "it's almost in total darkness" due to the ash and smoke.

Teresa Marroquin, a Guatemalan Red Cross coordinator, said the organization had set up 10 emergency shelters and was sending hygiene kits and water.

"There are lots of respiratory problems and eye problems," she said.

[Howard]

Thousands Evacuated as San Cristobal Volcano Eruption in Nicaragua Intensifies (Sept 9) -

Nicaragua’s largest volcano erupted three times this morning, belching gas and ash 1,500 meters into the sky and forcing the evacuation of thousands of families in the rural northwestern department of Chinandega, according to government media sources. No damages or injuries have been reported.

San Cristobal’s eruption is being monitored by the government officials and could result in the evacuation of 20,000 people, according to first lady and government spokeswoman Rosario Murillo.

Guillermo González, director of the National System for Prevention, Mitigation and Response to Disasters (SINAPRED) reported that 3,000 people in five communities are being affected by gases and ash from the volcano.

Source

Source

[lonne rey]

4 Costa Rico Volcano's being closely watched after earthquake

Costa Rica News – When seeing the after effects of the earthquake in Costa Rica this past week, one thing that needs to be watched closely is the active volcanoes within the country. Even a small shift under one of these giants could cause an eruption. At least four of the seven active volcanoes in the country are in the crosshairs of scientists after the earthquake of 7.6 magnitude occurred on Wednesday in Costa Rica.

These are Arenal (Alajuela), Rincon de la Vieja (Guanacaste), Turrialba (Cartago) and Poás (Alajuela).

According to specialists agree Volcanological and Seismological Observatory of Costa Rica (OVSICORI-A) and the National Seismological Network (RSN: ICE-UCR), due to the size of the earthquake, it is normal volcanic structures, especially those already vulnerable are affected.There is a rearrangement of material and even chemical changes.

The clearest example is the Arenal, where locals reported a noise characteristic of rolling boulders. ”We know there is a cave in the north, in the direction of the community of La Palma,” said Maria Martinez geochemistry, OVSICORI.

So with the Telica, Apoyeque and San Cristobal the total is 7 at this moment

Source

[Derrick Johnson]

Ecuador's Tungurahua volcano erupts

 

 

 Ecuador's Tungurahua volcano spews large clouds of gas and ash near Banos, about 178 km (110 miles) south of Quito August 19, 2012. The authorities are encouraging residents living near the volcano to evacuate due to increased activity of the volcano, according to local media. The Tungurahua volcano has been in an active state since October 1999. REUTERS/Carlos Campana

http://news.yahoo.com/photos/ecuador-s-tungurahua-volcano-erupts-sl...  

[Kojima]

Submarine Eruption Makes it Three for New Zealand

By Erik Klemetti August 10, 2012

Just think, one week ago I was saying that 2012 was a relatively quiet year for volcanic eruptions. We haven’t made up all the ground of the more active years like 2010-11, however New Zealand had one of its more exciting volcanic weeks in a century — White Island and Tongariro both had eruptions and yesterday a large pumice raft was spotted north of the island nation.

* Aerial view by the New Zealand Navy of a pumice raft spotted near Raoul Island in the Kermadec Islands on August 10, 2012. Image from the New Zealand Herald.

This pumice raft (see right) is the product of a submarine volcanic eruption from one of the multiple of seamounts that are part of Kermadec arc north of New Zealand. Exactly which volcano is the source of the pumice is unclear — early on, it was suggested that Monowai was the source, but that seems to be in some question based on the location of the 26,000 square kilometer pumice raft (see below).

The raft is located to the northeast of Raoul Island, one of the active volcanoes of the Kermadec Islands that is above the sea surface. The next known active volcano to the northeast of Raoul is Monowai, thus the suspicion that it may be the source. Likely the only way this actual source will be identified is through matching the composition of this pumice with that of known material from Monowai (or another Kermadec volcano).

Rafts like this can travel great distances – some of the pumice rafts from the Krakatau eruption in 1886 washed up on African beaches months later — so trying to determine the exact source of the pumice when it is so widespread is challenging. However, this is likely a significant eruption based on the size of the pumice raft across the ocean surface. Monowai does seem reasonable, though, as it has produced significant eruptions in the last few years.

* A raw Aqua/MODIS image of the pumice raft off Raoul Island in the Kermadecs, seen on August 10, 2012. Image courtesy of NASA.

Much like I said yesterday, none of these eruptions are directly connected – Tongariro, White Island and this submarine eruption in the Kermadecs are too far apart to be sharing any magmatism. However, the tectonics that control the formation of volcanoes are all the same – the subduction of the Pacific Plate under the Australian Plate.

[Sevan Makaracı]

White Island volcano update (New Zealand, 8 Aug)

A new eruption has started from White Island volcano early today. An ash plume is rising to 4-6000 ft (1.3-1.8 km) altitude. The eruption consists of ash venting from a new cone that is beeing built in the Crater Lake, and followed a sharp DECREASE in tremor...

Source

[Sevan Makaracı]

White Island volcano eruption Time-Lapse video (New Zealand)