San Miguel volcano news & activity updates
San Miguel (Chaparrastique) volcano, Nicaragua: new ash emissions
Friday Aug 14, 2015 11:05 AM | BY: T
Seismicity at San Miguel since the beginning of 2015 (MARN)Yesterday (13 Aug), a new ash emission occurred from the volcano, the first eruptive activity since early this year. Light ash fall occurred in areas up to 10 km west of the volcano in the small towns of San Jorge, Las Moritas and Piedrita.
The volcano, however, had remained in state of unrest during the past months, with both elevated seismic and SO2 degassing activity. In particular, seismicity started to rise again in July this year. A peak occurred on 12 August, a day before the eruption.
The volcano remains in institutional orange alert, maintained since December 2013.
Wednesday, Jan 28, 2015
A small explosion occurred last Monday at 06:43 morning. Probably phreatic in nature, it was the first eruptive activity since minor ash emissions past July. ... [more]
Sunday, Dec 28, 2014
The volcano remains restless with seismic activity above background and shows occasional pulsating gas and steam emissions. Overall, activity has been slowly decreasing over the past months. ... [more]
Tuesday, Sep 02, 2014
Seismic activity, in particular the level of internal vibration (tremor), has increased again at the volcano. This follows a month of lower values detected. [more]
Thursday, Jul 24, 2014
New ash emissions occurred on 23 July, similar to the previous such episode on 13 July. Small plumes rose a few 100 m above the crater. Seismic tremor remains high and authorities keep a close watch on the volcano. [more]
Wednesday, Jul 23, 2014
The volcano continues to produce important gas emissions as well as occasional small ash explosions. Tremor remains at very high levels (20 times above normal), caused by internal fluid movements. The likelihood of new eruptive activity in the near to medium future remains elevated. [more]