Cerro Machin volcano activity summry 24-30 Sep 2012Wednesday Oct 03, 2012 12:05 PM | BY: T
Some weak seismic activity was located south of the main dome at depths ranging between 3 and 5 km. Additionally, there were earthquakes located to the southeast of the dome in the sector between Moral and Moralito. The earthquake of greatest magnitude during the week was a 1.0 (Local Magnitude ML) on September 29 at 10:15 (local time). No other changes were noted at the volcano.
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Previous news
Wednesday, Sep 26, 2012
During the last week Cerro Machin volcano continued to record seismic events associated with the fracturing of rock inside the volcano, located in the main dome and south of it, at depths ranging between 2.5 and 5 km. Additionally, other events were located to the southeast of the dome in the sector between Moral and Moralito.
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Wednesday, Sep 19, 2012
Elevated seismic activity continues with 82 events registered over the past 7 days, out of which 45 shallow volcanic quakes up to magnitude 1.3 and frequent tremor pulses of weak energy. Visual observations reveal strong degassing generating a plume rising less than 1 km.
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Wednesday, Sep 12, 2012
At the moment, seismicity Machin is calm again. INGEOMINAS summarizes the recent 2 earthquake swarms on 9 Sep between 7:30 and 8:30 (local time) and the following day 10 Sep between 07:20 and 14:00. ...
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Tuesday, Sep 11, 2012
Another small swarm of quakes occurred on 10 Sep and then ceased. At the moment, seismicity is again low.
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Sunday, Sep 09, 2012
At 07:32 local time 9 Sep, a 3.6 magnitude quake occurred at 3.2 km depth beneath the summit of the volcano. Seismicity had been elevated since 8 Sep and stronger than normal seismic activity has been following the quake today. This is the most energetic seismic activity at the volcano for probably more than a year.
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