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Diaporama
Cerro Negro de Mayasquer volcan
stratovolcan 4445 m / 14,583 ft
Colombie, 0.83°N / -77.96°W
Condition actuelle: en vigilance - niveau agité (2 sur 5)
Cerro Negro de Mayasquer webcams / données en temps réel | Reports
Cerro Negro de Mayasquer livres
Eruptions du volcan Cerro Negro de Mayasquer:
1936(?)
Style éruptif tipique:
explosive
Derniers séismes proches
Derniers images satellite
 

Cerro Negro de Mayasquer volcano news & activity updates:

Cerro Negro de Mayasquer volcano (Colombia) activity update

Wednesday Jul 23, 2014 14:37 PM | AUTEUR : T

Seismic unrest continues at the volcanic massif of Chiles and Cerro Negro. However, it decreased during the past week with less than 700 events recorded, compared to 1500-1800 per week during the month before.
Most earthquakes were associated with internal rock fracturing and located at shallow 1-7 km depth in an area 4 km SW of the Chiles dome. Magnitudes reached 2.7 and some quakes were felt.
Slight deformation has been detected at the Chiles dome as well.
Actualités précédentes
Friday, May 30, 2014
Unrest at the volcano continues in the form of earthquakes under the Chiles-Cerro Negro volcanic massif. During the past week, the monitoring network recorded around 6500 quakes, mostly located less than 4 km SW from the summit at depths ranging between 1 and 8 km and with magnitudes of up to 4.0 on the Richter scale. ... [details]
Earthquakes under Cerro Negro de Mayasquer (IGPEN)
Saturday, May 10, 2014
The seismic crisis under the volcano continues. Thousands of small earthquakes, both volcano-tectonic (due to rock fracturing caused by magma pressure) and long-period (due to fluid movements) earthquakes continue to be registered. ... [details]
Friday, May 02, 2014
The alert level of the twin-volcanoes Cerro Negro and Chiles has been raised to yellow in response to an ongoing seismic crisis and deformation that has been detected since November 2013, when a new monitoring network had been installed. ... [details]
Map of seismicity near Cerro Negro volcano (Image: INGEOMINAS / Pasto Observatory)
Thursday, Mar 13, 2014
More than 11,000 micro-earthquakes at shallow depths were recorded beneath the volcanoes of Cerro Negro de Mayasquer and Chiles during the past few months, INGEOMINAS Pasto volcano observatory reported. ... [details]

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