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Yellowstone Supervolcano is hit by 464 earthquakes in just one week

Tim Collins
Daily Mail
Wed, 21 Jun 2017 11:54 UTC
A swarm of hundreds of earthquakes have hit Yellowstone National Park, the highest number within a single week in the past five years.
A swarm of hundreds of earthquakes have hit Yellowstone National Park, the highest number within a single week in the past five years.
Hundreds of earthquakes have hit Yellowstone National Park in the space of a week, according to experts. A total of 464 quakes have been recorded over the past week at Yellowstone, which sits above one of the world's most dangerous supervolcanoes.

This is the highest number of earthquakes at the park within a single week in the past five years. The recent activity has raised fears that the supervolcano is about to blow.

If it were to erupt, the Yellowstone supervolcano would be one thousand times as powerful as the 1980 Mount St Helens eruption, experts claim - although they say the risk is 'low'.
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Attention

Nishinoshima volcano erupting again on Ogasawara Island, Japan


The Mainichi
Tue, 20 Jun 2017 09:00 UTC
The island of Nishinoshima is seen dyed bright red by lava
© Meteorological Research InstituteThe island of Nishinoshima is seen dyed bright red by lava
Nishinoshima Island is erupting again after about a year and a half, and the level of volcanic activity is about the same as the 2014-2015 eruptions that saw the island's surface area expand at a remarkable rate, the Japan Meteorological Agency (JMA)'s Meteorological Research Institute announced on June 19.

Based on analysis of gases emanating from the volcano in the Ogasawara Island chain, the institute believes there is a steady supply of magma and the eruption is likely to continue for some time.

The JMA observation vessel Keifu Maru took the readings from May 25 to 27, and recorded Strombolian eruptions -- small to medium explosive lava eruptions -- about once every 46 seconds. The JMA also observed Vulcanian eruptions -- short and violent explosions -- about once an hour, scattering ash and other ejecta around the area. The volcano is spewing out about 500 metric tons of sulfur dioxide per day, indicating a high level of activity not seen on Nishinoshima since October 2015.
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Attention

Bezymianny volcano erupts in Russia with ash cloud 7 miles above sea level

Robert W. Felix
Ice Age Now
Fri, 16 Jun 2017 09:39 UTC
volcano
Propels ash more than 7 miles above sea level.

A major explosive eruption took place at Russia's Bezymianny volcano this morning (16 June 2017), propelling ash to 12.2 km (40 000 feet) above sea level, according to the Tokyo VAAC. It is the strongest eruption of this volcano since September 2012.

Bezymianny, now considered one the most active volcanoes in the world, erupted for the first time in recorded history in 1955. Within six months, it produced a total volume of eruptive products over 3 cubic kilometers (0.72 cubic miles).

For comparison, the 1980 eruption of Mount St Helens produced 1.3 cubic kilometers (0.3 cubic miles) of ash.

Prior to its 1955 eruption, Bezymianny had been considered extinct.

Thanks to Don Brown and Guy Wilson for this link
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Bizarro Earth

Powerful eruption of Sheveluch volcano sends ash to 12 km (39,360 feet)


The Watchers
Thu, 15 Jun 2017 17:40 UTC
Sheveluch volcano june 2017
© KVERT, IVS FEB RASAsh cloud at 20:40 UTC on June 14, 2017. A large content of ash particles is noted in red color.
A major eruption started at Russia's Sheveluch volcano at 16:20 UTC on June 14, 2017. KVERT reports a plume of ash reached a height of 12 km (39 360 feet) above sea level and warned explosions up to 15 km (49 200 feet) could occur at any time. The Aviation Color Code was raised from Orange to Red.

At 19:00 UTC, vast ash cloud (140 x 60 km / 87 x 37 miles) from the eruption was observed about 64 km (40 miles) to the southwest and 76 km (47 miles) to the northwest from the volcano, KVERT said at 19:32 UTC. By 20:20 UTC, ash cloud grew to 196 x 223 km (122 x 138 miles). Front of ash cloud with a large content of ash particles (67 x 54 km / 41 x 33 miles) was observed about 96 km (59 miles) north-northwest of the volcano, but the other front of ash cloud was 118 km (73 miles) southwest of the volcano.

By 22:30 UTC, ash cloud grew to 422 x 155 km (262 x 96 miles / 36 000 km2 / 13 900 mi2). Ash cloud with a large content of ash particles (84 x 55 km / 52 x 34 miles) was observed 131 km (81 miles) to the north-northeast. A general front of the largest ash cloud was observed 225 km (140 miles) to the northeast, and the other about 194 km (120 miles) to the southwest. By 06:00 UTC, the front of first ash plume was about 640 km (398 miles) to the ENE of the volcano, while the front of the second ash plume was about 294 km (182 miles) SW.

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Attention

Bogoslof volcano (Aleutian Islands, Alaska): new series of larger explosions


Volcano Discovery
Tue, 13 Jun 2017 11:16 UTC
Bogoslof Island, June 11, 2017. Photo taken from an Alaska Airlines jet enroute to Adak
© Cyrus Read, USGS/AVOBogoslof Island, June 11, 2017. Photo taken from an Alaska Airlines jet enroute to Adak
After a pause about approx. 2 days with little detected activity since the large explosion on 10 June, a new series of relatively strong explosions began early today at 1:47 UTC 13 June (17:47 local time AKDT June 12). At least two larger pulses of activity occurred, each lasting 10-30 minutes and producing ash plumes up to 25,000 ft (7.5 km) altitude that dissipated within 30 minutes.

According to the Alaska Volcano Observatory (AVO), the last such episode of explosive activity ended at 04:35 UTC this morning (20:35 AKDT June 12).

The ash from the latest eruptions is drifting SE toward Unalaska Island where minor ash fall could occur.

For the time being, the volcano has been calmer again during the past hours, but as similar explosive events are likely to occur again in the near future, the Aviation Color Code remains at RED.

Likely, the latest series of explosive eruptions have destroyed the lava dome observed on satellite data during the past week.
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Attention

Powerful explosions with loud detonations at Stromboli volcano, Italy


Volcano Discovery
Sun, 11 Jun 2017 17:32 UTC
Strong explosion from Stromboli's NW vent (S1) and a moderate one from the eastern (N2) vent on 11 June 2017 evening
Strong explosion from Stromboli's NW vent (S1) and a moderate one from the eastern (N2) vent on 11 June 2017 evening
The activity of the volcano remains at moderate to high levels. Compared to the update a few days ago, activity at the eastern vents (N1, N2) has decreased a bit, but instead increased significantly from the westernmost vent (S1).

When observed last night, powerful strombolian explosions from this vent, often accompanied by loud detonations, often reached or even exceeded 200 m height, and occurred at intervals of 5-10 minutes.

In total, only 4 of the 5 vents previously observed were active; the second vent (S2) in the western crater area
was not observed yesterday. The central vent only had rare (every 1-2 hours) mild strombolian bursts, but showed frequent mild spattering and intense lava glow.

Activity at the eastern vents was similar as described earlier, but weaker and not as frequent any more (N2: eruptions every 15-20 minutes; N1: eruptions every 30-60 minutes). During some of the more powerful explosions, the western (S1) and eastern (N2) main vents erupted simultaneously.
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Attention

Keyraki mud volcano erupts in Azerbaijan


APA
Mon, 12 Jun 2017 17:24 UTC
The Keyraki mud volcano
The Keyraki mud volcano
The Keyraki mud volcano erupted around 07:00am local time.

According to the press service of the Ministry of Ecology and Natural Resources, the eruption lasted for 15 minutes and the mud covered an area of 3.5ha.

The depth of the erupted mud layer reached 3 meters within the crater and 0.2 to 0.3 meter around the crater.

The Keyraki mud volcano is situated 12km north of Baku. The eruption caused no damage to the nearby residential areas. However, there are several active mud volcanoes in the area and thus further eruptions cannot be ruled out.

Experts of the Ministry of Ecology and Natural Resources are studying the consequences of the eruption.

The Keyraki mud volcano has erupted 18 times so far. Last time it had erupted in 2014.
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Attention

Three volcanoes are restless on the Alaska Peninsula

Avery Lill
kdlg.org
Fri, 09 Jun 2017 14:28 UTC
A volcanic plume from Bogoslof on June 5, 2017
© US Fish & Wildlife ServiceA volcanic plume from Bogoslof on June 5, 2017
Bogoslof volcano has a new lava dome. Cleveland volcano continues to put up ash and extrude lava, and the alert level for Pavlof volcano was raised to "advisory."

Over the last week there has been quite a bit of volcanic activity along the Alaska Peninsula. The Bogoslof, Cleveland, and Pavlof volcanoes are all showing signs of unrest. Most recently, the Bogoslof volcano erupted briefly Wednesday around 9:30 p.m.

"Bogoslof has been continuing its eruptive activity that started in December 2016 with a series of small activities," says Jessica Larsen, a geologist with the Alaska Volcano Observatory. "Now we have new evidence that there's a lava dome growing at the Bogoslof Island."

A lava dome is a mound of lava that has been extruded from the volcano. This is characteristic of previous Bogoslof explosive periods.
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Attention

New eruption at Poas Volcano in Costa Rica

Laura Alvarado
The Costa Rica Star
Tue, 06 Jun 2017 12:28 UTC
June 2 Poas Volcano activity.
© National Seismology networkJune 2 Poas Volcano activity.
The National University's Volcanology and Seismology Research Institute (OVSICORI) reported an eruption that reached 1,000 meters above the crater, 3,708 meters above sea level (12.162,24 ft.), began at 8:50 a.m. local time this Tuesday and was still in progress at 10:05 a.m.

This past Friday, June 2 the Poás Volcano registered constant activity with small size eruptions and redcolumns of gases and ash, on Saturday some activity continued but Sunday and Monday there were no new eruptions although there was an intense column of steam and gases emanating from the crater.
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Attention

Marapi volcano erupts in West Sumatra, Indonesia


Vietnam Plus
Tue, 06 Jun 2017 13:38 UTC
Marapi volcano in West Sumatra
Marapi volcano in West Sumatra
Marapi volcano in West Sumatra, Indonesia erupted on June 4, spewing clouds of volcanic ash over the region of Tanah Datar in Sumatran province.

According to the Volcanology and Geological Disaster Mitigation Centre (PVMBG), Marapi volcano erupted twice at 10:01 am and 10:22 am (local time).

The first eruption generated a 300-metre high plume of smoke from the peak, while the second one spewed ash much higher at around 700 metres from the mountain top.

The PVMBG set up an exclusion zone with the three-kilometer radius from the mountain summit, and called local residents to abide by instructions as well as notices of the centre.
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