Turrialba volcano (Costa Rica): new ash eruptions
Thu, 7 May 2015, 08:54 | BY: T
Eruption of Turrialba on 4 May with ejected bombs (arrows) (OVSICORI-UNA)
A small and short ash eruption occurred on 1 May, with a plume of a few hundred meters height. On 4 May, a more intense eruption occurred at 13:20 local time, ejecting an ash column that rose 2.5 km and caused ash fall in areas of the Central Valley to the west, before drifting over the Pacific 100 km distance.
During the eruption, several large bombs were ejected and fell several hundred meters from the crater.
According to OVSICORI, much of the eruptive process is dominated by the interaction of shallow ground water with a new, but probably relatively small body of magma that has risen in the conduit. Explosive activity of various strength is likely to continue for the near future.
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Previous news
Wed, 6 May 2015, 06:00
Turrialba volcano (Costa Rica) - Smithsonian / USGS Weekly Volcanic Activity Report for 6 May-12 May 2015 (Continuing Activity)
OVSICORI-UNA reported that a 4-minute-long ash emission from Turrialba occurred at 1004 on 6 May. The ash plume rose vertically about 600 m above the crater. Another ash emission occurred at 1245 on 11 May, and tremor was detected. ... Read all
Wed, 29 Apr 2015, 06:00
Turrialba volcano (Costa Rica) - Smithsonian / USGS Weekly Volcanic Activity Report for 29 April-5 May 2015 (Continuing Activity)
OVSICORI-UNA reported that a 4-minute-long ash emission from Turrialba occurred at 0836 on 1 May. The ash plume rose about 500 m above the crater and drifted SW. Ash emissions that began at 1524 on 4 May lasted 23 minutes, and produced an ash plume that rose 2.5 km and drifted SW. ... Read all
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