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Turrialba volcano
Stratovolcano 3340 m (10,958 ft)
Costa Rica, 10.03°N / -83.77°W
Current status: erupting (4 out of 5)
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Turrialba volcano eruptions:
1723(?), 1847(?), 1853, 1855, 1861(?), 1864-65, 1866, 2010 (Jan 4) - ongoing
Typical eruption style:
Explosive.
Last earthquakes nearby
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Turrialba volcano (Costa Rica): activity updates and eruption news

Turrialba volcano (Costa Rica): small ash emissions

Monday Mar 09, 2015 16:17 PM | BY: T

Small ash emissions were observed yesterday.A series of 4 small explosions occurred between 13:41 and 15:17 local time, generating plumes of up to 500 m height.
It is not known at the moment, if the eruptions are phreatic, i.e. the result of exploding overheated water, or caused by fresh magma arriving at the summit.
Previous news
Tuesday, Dec 09, 2014
A new eruption occurred last evening at 21:30 local time. Not much detail about the eruptions is available, but it seems to have been a rather small event. Light ash fall was noted in areas up to 20 km distance. There are no reports of damage or injuries. ... [more]
Sunday, Nov 16, 2014
Another ash eruption, but significantly smaller than the one from 29 Oct, occurred last Friday at 13:46 local time. ... [more]
Thursday, Oct 30, 2014
A relatively large explosion occurred at the volcano last night at 23:40 local time. According to local news, the eruption lasted about 45 minutes and was accompanied by strong seismic activity, which was felt by the local population. ... [more]
SO2 plume over Central America (NOAA)
Friday, May 30, 2014
The volcano could be becoming more active with increased degassing. An elevated SO2 concentration in the atmosphere above and near the volcano was visible on satellite data yesterday. Seismic activity appears to be elevated. [more]
Yesterday's seismic signal from Turrialba (VTUC station, OVSICORI)
Wednesday, Jul 24, 2013
The seismic crisis continues with a swarm of volcanic-tectonic quakes as well as periods of low-frequency tremor and possible small explosion signals (which could suggest small phreatic eruptions). OVSICORI wrote that on 18 July, over 1000 earthquakes were recorded on a single day. [more]

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