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Volcanic activity worldwide 21 Nov 2015: Karymsky volcano, Colima, Erta Ale, Tungurahua, Nishino-shi...

Sat, 21 Nov 2015, 21:00
21:00 PM |
Explosion from Nishinoshima's active main vent on 17 Nov (Japan Coast Guard)
Explosion from Nishinoshima's active main vent on 17 Nov (Japan Coast Guard)
Eruption from Colima last night (photo: Hernando Rivera / facebook)
Eruption from Colima last night (photo: Hernando Rivera / facebook)
Small ash emission from Cotopaxi yesterday evening
Small ash emission from Cotopaxi yesterday evening
Tungurahua volcano last night
Ash emission from Copahue volcano last night
Ash emission from Copahue volcano last night
Karymsky (Kamchatka): (21 Nov) Ash plumes from the volcano drifting east at estimated 23,000 ft (7 km) altitude were reported by VAAC Tokyo yesterday.

Nishino-shima (Volcano Islands, Japan): (21 Nov) The volcano continues to erupt and is approaching its anniversary. It started with the birth of a new island offshore the old Nishino-Shima island on 23 Nov 2013, which by now has joined and completely covered and greatly enlarged the older one.
The latest survey of the Japanese Coast Guard on 17 Nov showed that although lava effusion continues at slow rate, thickening the flow field in the interior of the island, they no longer reach the shores and the island's total surface has decreased a bit due to wave erosion from 2.67 in September to now 2.63 square km.
Strombolian to vulcanian-type explosions occur from the main vent, sometimes strong enough to project bombs of meter size into the sea, i.e. to more than 1 km distance.

Shishaldin (Aleutian Islands, Alaska): (21 Nov) No anomalous activity at Shishaldin has been observed in satellite data since weakly elevated surface temperatures were detected on October 16. Low-amplitude seismic tremor continues but is not considered to be indicative of an active eruption.
AVO is therefore downgrading the status of Shishaldin volcano from aviation color code ORANGE to YELLOW and from volcano alert level WATCH to ADVISORY. (AVO / USGS)

Colima (Western Mexico): (21 Nov) Intermittent explosive activity continues with little changes. Another beautiful shot of an ash column with eruption lightning by our friend Hernando Rivera from Colima attached.
If you like to join us on a 4 days expedition to Colima from 16-20 Dec, look here.

Cotopaxi (Ecuador): (21 Nov) The volcano's activity remains low, with intermittent small ash emissions and continuous steaming. Weak glow can sometimes be observed at night. According to IGEPN, seismic activity remains moderately strong.

Tungurahua (Ecuador): (21 Nov) Today and yesterday, the activity at the volcano has been lower and emissions much reduced, after a phase of near continuous degassing and ash venting, producing columns of up to 3 km height during 18-19 Nov.
In this period, 1-6 mm of ash fell in areas to the NW, including Cotaló, Chacauco, Pillate, Chontapamba, Chonglontus, Cusua, Juive, and Bilbao where it caused significant damage to vegetation and some infrastructure.

Copahue (Chile/Argentina): An increase in activity occurred at the volcano during the past two days. Starting Thursday evening, a new pulse of volcanic tremor was detected and ash emissions began during the night Thu-Friday around 3 am.
At 03:40, a larger explosive event and emission took place that produced a plume of ash rising approx. 1 km. Also, some incandescent material was seen ejected. Until now, mild ash emissions seem to continue as near-continuous.
... [read more]

Erta Ale (Ethiopia): (21 Nov) The lava lake in the southern pit of the caldera, 30-40 meters in diameter, remains very active and approaches again levels close to overflowing the margins of the pit, being only a few meters below the floor of the caldera.
A group of ours is currently there and we will have fresh news in about 10 days, but the following video likely from early November shows the current activity well:

Previous news
Wed, 18 Nov 2015, 23:00
Glow from Etna's Voragine during a small strombolian explosion
Etna (Sicily, Italy): Strombolian activity continues in the Voragine. Hot fumaroles are visible at the New SE crater. ... read all
Tue, 17 Nov 2015, 16:05
Weak ash emisson from Etna's central crater (INGV webcam)
Etna (Sicily, Italy): No significant change in activity has occurred during the past days. Degassing from the New SE crater has decreased again, probably because the magma column has dropped again, and tremor is currently low. ... read all
Sun, 15 Nov 2015, 21:00
Heat signal from Karangetang volcano (MIROVA)
Karangetang (Siau Island, Sangihe Islands, Indonesia): (15 Nov) Activity at the volcano has decreased a bit, judging from the overall thermal signal, but continues with slow lava extrusion and small explosions at the summit crater, generating incandescent avalanches. ... read all
Fri, 13 Nov 2015, 21:00
Etna's steaming New SE crater this mornning
Etna (Sicily, Italy): (13 Nov) Etna's New SE crater is the likely site of new activity in the near future. Intense steaming from the eastern vent of the youngest summit crater suggests that magma is not far from the surface. ... read all
Thu, 12 Nov 2015, 21:00
Ash plume from Rinjani this morning (Terra satellite / NASA)
Rinjani (Lombok): According to local observers, the eruption has decreased in strength overall, although strombolian activity seems to still be intense and is visible on webcam images. ... read all
 

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