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Zufallsfotos
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: occasional shallow earthquake swarms

Mittwoch Sep 12, 2012 10:05 | VON: T

Seismic signal this morning (CIMA station)
Seismic signal this morning (CIMA station)
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.
Some of the quakes during these swarms were felt by inhabitants of villages near the volcano. The epicenters of the quakes were clustered at 2-4 km depth W and S of the summit dome, and the largest was the M3.6 event on 9 Sep.
Vorherige Nachrichten
Seismic signal on 10 Sep (CIMA station)
Dienstag, Sep 11, 2012
Another small swarm of quakes occurred on 10 Sep and then ceased. At the moment, seismicity is again low. [mehr]
Current seismogram from Cerro Machin showing the 3.6 quake this morning (CIMA station, INGEOMINAS)
Sonntag, 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. [mehr]
Current seismogram from Cerro Machin  (CIMA station, INGEOMINAS)
Mittwoch, Sep 05, 2012
Weak volcanic quakes concentrated SE of the main dome at depths between 3.0 - 9.5 km occurred during the past week. [mehr]
Mittwoch, Aug 29, 2012
No significant changes have been occurring. Weak seismic unrest continues at Cerro Machín with some small volcanic quakes clustered at depths between 3-6 km south and southwest under the main summit. The largest event was a magnitude 0.55 on 22 August at 08:27 local time. [mehr]
Seismic signal from Cerro Machin (CIMA station, INGEOMINAS)
Dienstag, Aug 07, 2012
Seismicity at Machin remains at slightly elevated levels with some weak earthquakes SE under the lava dome at depths between 3.5 and 5 km. [mehr]

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