Turrialba volcano (Costa Rica): activity updates and eruption news
Turrialba volcano (Costa Rica): new ash eruptions
Thu, 7 May 2015, 08:5408:54 AM | BY: T
A new series of weak to moderately powerful eruptions have occurred at the volcano during the past days.
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.
Fri, 24 Apr 2015, 16:37
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. read all
Mon, 20 Apr 2015, 11:05
Sporadic ash emissions have continued to occur during the previous days at the volcano. read all
Tue, 7 Apr 2015, 07:53
A new phase of explosive activity occurred at the volcano during the past days. It has calmed down again since yesterday, but new eruptions could (and are likely to) occur any time. Steaming and incandescence are visible from the crater. ... read all
Mon, 16 Mar 2015, 15:55
The volcano has remained calm at the surface, but seismic activity continues to be elevated. According to OVSICORI-UNA, new explosions with strong ash emissions should be expected in the near future. ... read all
Sun, 15 Mar 2015, 16:34
The volcano has remained calm for the past 36 hours, but OVSICORI-UNA warns that new explosions are likely in the near future. read all