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Willekeurige foto 's
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 vulkaan (Colombia): 4.6 magnitude aardbeving op 7 okt triggers seismische zwerm

Tuesday Oct 09, 2012 09:07 AM | DOOR: T

Seismic signal this morning October 9 (CIMA station, INGEOMINAS)
Seismic signal this morning October 9 (CIMA station, INGEOMINAS)
Seismic signal with the 2 mag 4.6 and 3.9 earthquakes on 7 Oct (CIMA station, INGEOMINAS)
Seismic signal with the 2 mag 4.6 and 3.9 earthquakes on 7 Oct (CIMA station, INGEOMINAS)
Op 7 oktober om 21: 32 en 21: 35 (lokale tijd) 2 vulkaan-tektonische aardbevingen met lokale magnitude 4.6 en 3.9 opgetreden onder Cerro Machin op 12 km diepte in het zuidoosten van de belangrijkste koepel.
Deze aardbevingen werden gevoeld door bewoners in de buurt van de vulkaan, in de gemeenten Cajamarca en Ibagué (Tolima), en in sommige gemeentes in de departementen van Quindio, Risaralda en Caldas.
Deze twee gebeurtenissen geactiveerd in een verhoging van de seismische activiteit die voortdurend voor een dag, maar schijnt te hebben gekalmeerd voor nu.

Zoals aardbeving-verslag, Machin niet elke historische uitbarstingen heeft gehad, maar er zijn records van grote explosieve gebeurtenissen in het verleden. De vulkaan ontwaakt uit een lange periode van rust in de jaren negentig met talrijke aardbeving zwermen vergelijkbaar met de huidige ones, maar tot nu toe heeft niet een uitbarsting.
De afgelopen jaren zijn relatief rustige degenen op de vulkaan, maar in de afgelopen paar maanden, seismiek weer toegenomen. De meeste van deze activiteit is in dezelfde regio 12-15 km onder de vulkaan en magma binnendringende er kan aangeven. Het is interessant om te volgen deze vulkaan activiteit in de komende maanden of jaren.
Vorig nieuws
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. [meer...]
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. [meer...]
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. [meer...]
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. ... [meer...]
Seismic signal on 10 Sep (CIMA station)
Tuesday, Sep 11, 2012
Another small swarm of quakes occurred on 10 Sep and then ceased. At the moment, seismicity is again low. [meer...]

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