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Ubinas vulkaan
Stratovulkaan 5672 m (18,609 ft)
Peru, -16.36°S / -70.9°W
Current status: restless (2 out of 5)
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Ubinas vulkaanuitbarstingen:
2014-16, 2009-2010, 2006-08, 1969, 1956, 1951, 1937, 1907, 1906, 1869, 1867, 1865, 1862, 1830, 1826(?), 1784, 1677, 1662, 1600, 1550 ± 50y
Typical eruption style:
Explosieve
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News from Ubinas volcano:

Ubinas volcano (Peru): phreatic explosions

zo, 16 feb 2014, 12:08
12:08 PM | DOOR: T
Seismic activity at Ubinas during 14 Feb and since 31 Jan (IGP)
Seismic activity at Ubinas during 14 Feb and since 31 Jan (IGP)
Details of the seismogram on 14 Feb (IGP)
Details of the seismogram on 14 Feb (IGP)
The volcano could be in the process of entering a new eruptive phase. Two small (likely phreatic) explosions occurred last Friday at 13:46 and 14:45 h local time (18:46 and 19:45 GMT), ejecting plumes of ash and steam rising approx. 1.5-2 km. A strong sulfur smell was noticed in up to 5 km distance.

Ubinas, Peru's most active volcano, had been showing increased signs of unrest since the beginning of the month. Episodes of tremor occurred frequently during 1-9 Feb, accompanied by intense fumarolic activity. Tremor decreased after 9 Feb, but a swarm of long-period earthquakes occurred with up to 80 quakes detected per day.
An important increase in SO2 emission (500 tons/day on 7 Feb) was measured, which suggests the presence of new magma. In addition, INGEMMET detected 25-30 mm inflation of the southern flank, but notes that it is likely a sign of its structural instability, enhanced by the current seismic activity (as opposed to being a sign of magma pushing from inside).

Authorities have distributed dust masks to people in the areas of Cancosani, Titi and Cangalle.
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Koppelingen / Bronnen:
Vorig nieuws
Mon, 3 Feb 2014, 16:52
Seismic swarm on 25 Jan 2014 (IGP)
Two small earthquake swarms occurred in January, the latest bulletin of the Peru's Geophysical Institute (IGP) reports. The first one happened between 8-9 Jan, and the second and stronger one on 25 Jan. In addition, bluish degassing (SO2, an indicator of the presence of magma) was observed. Lees alle
Wed, 16 Oct 2013, 07:56
Surface and seismic activity have calmed down recently and are near background levels. ... Lees alle
Fri, 20 Sep 2013, 00:42
Seismic signal from Ubinas 18 Sep (UB2 station, IGP)
Terwijl de vulkaan heeft aan de oppervlakte gekalmeerd sinds de serie van 9 freatische explosies tijdens 1-5 September, kan een puls van vulkanische gisteren trillen (trilbiggen) aangeven dat de vulkanische crisis niet over of zelfs nog aan het begin is. ... Lees alle
Fri, 6 Sep 2013, 09:29
Ash explosion from Ubinas yesterday (INGEMMET)
Nieuwe uitbarstingen op de vulkaan. Het lijkt meer en meer waarschijnlijk dat de freatische explosies zijn een gevolg van nieuwe magma stijgen van diepte, en de vulkaan kon gaan naar meer duurzame en eventueel grotere magmatische activiteit in de nabije toekomst. ... Lees alle
Wed, 4 Sep 2013, 06:36
The volcano woke up with a series of small ash explosions over the past days. The first and largest occurred on Sunday (1 Sep) and 4 smaller ones followed on Monday and Tuesday. ... Lees alle

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