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Turrialba volcano
Stratovolcano 3340 m (10,958 ft)
Costa Rica, 10.03°N / -83.77°W
Current status: restless (2 out of 5)
Turrialba webcams / live data | Reports
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Turrialba volcano eruptions:
1723(?), 1847(?), 1853, 1855, 1861(?), 1864-65, 1866, 2010 (Jan 4) - ongoing
Typical eruption style:
Explosive.
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Turrialba volcano (Costa Rica): activity updates and eruption news

Turrialba volcano (Costa Rica): new ash emissions

Monday Oct 26, 2015 10:21 AM | BY: T

Eruption at Turrialba yesterday morning (OVSICORI-UNA webcam)
Eruption at Turrialba yesterday morning (OVSICORI-UNA webcam)
Ash emissions during the night 25-26 Oct
Ash emissions during the night 25-26 Oct
After several months of relative calm, the volcano began to erupt ash plumes again since 23 Oct. Some of the explosions have been relatively strong and caused very small pyroclastic flows limited to the crater area.
The origin of these emissions are likely phreatic explosions, i.e. caused by overheated ground water flashing to steam.
Whether this is the case or at least some fresh magma is involved is unclear. Seismic activity, which could suggest the rise of new magma, has been reported to have picked up recently.
Previous news
Eruption at Turrialba volcano on 15 Aug
Tuesday, Aug 18, 2015
After 3 months of relative quiet, a small eruption occurred at the volcano on Saturday (15 Aug). At 01:47, an explosion of gas and ash generated a plume that rose 500 m. ... [more]
Wednesday, May 20, 2015
Several new mild to moderately strong ash eruptions have occurred at the volcano during the past days. ... [more]
Eruption of Turrialba on 4 May with ejected bombs (arrows) (OVSICORI-UNA)
Thursday, May 07, 2015
A new series of weak to moderately powerful eruptions have occurred at the volcano during the past days. ... [more]
Strombolian explosion at Turrialba this morning
Friday, Apr 24, 2015
The ejection of incandescent lava in small strombolian-type explosions has been observed since 03:40 this morning at the volcano's crater. This means that new magma has now arrived at the crater. ... [more]
Ash emissions at Turrialba volcano yesterday afternoon
Monday, Apr 20, 2015
Sporadic ash emissions have continued to occur during the previous days at the volcano. ... [more]

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