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Random pictures
Machin volcano satellite image by (c) Google Earth View
Machin volcano satellite image by (c) Google Earth View
Colombia: Machín and Nevado del Huila Volcanoes (as of 10 Nov 2008) - Location Map (source: United Nations Office for the Coordination of Humanitarian Affairs - ReliefWeb )
Colombia: Machín and Nevado del Huila Volcanoes (as of 10 Nov 2008) - Location Map (source: United Nations Office for the Coordination of Humanitarian Affairs - ReliefWeb )

 

Machin volcano (Colombia) activity update

Friday Oct 12, 2012 10:05 AM | BY: T

Seismic signal on 12 Oct (CIMA station)
Seismic signal on 12 Oct (CIMA station)
Some earthquakes and long-period events appear on the seismograms, which otherwise has been relatively calm during the past days.
Previous news
Seismic signal this morning October 9 (CIMA station, INGEOMINAS)
Tuesday, Oct 09, 2012
On 7 October at 21:32 and 21:35 (local time) 2 volcano-tectonic quakes with local magnitude 4.6 and 3.9 occurred beneath Cerro Machin at 12 km depth to the southeast of the main dome. ... [more]
Wednesday, Oct 03, 2012
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. [more]
Current seismogram from Cerro Machin (CIMA station, INGEOMINAS)
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. [more]
Seismic signal on 19 Sep (CIMA station)
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. [more]
Seismic signal this morning (CIMA station)
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. ... [more]

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