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Cerro Negro de Mayasquer volcano
stratovolcano 4445 m / 14,583 ft
Colombia, 0.83°N / -77.96°W
Current status: restless (2 out of 5)
Cerro Negro de Mayasquer webcams / live data | Reports
Cerro Negro de Mayasquer volcano books
Cerro Negro de Mayasquer volcano eruptions:
1936(?)
Typical eruption style:
explosive
Last earthquakes nearby
Latest satellite images
 

Cerro Negro de Mayasquer volcano news & activity updates:

Cerro Negro de Mayasquer volcano (Colombia): seismic crisis, alert level raised

Friday May 02, 2014 09:38 AM | BY: T

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.
INGEOMINAS reported that seismic activity has remained elevated and that so far, more than 60,000 small earthquakes at shallow depths (1-6 km) have been recorded since November 2013. The epicenters were between 3-5 km SW of the Chiles volcano, while deformation affects neighboring Cerro Negro volcano to the west. Several of them were felt by people living close by. The largest quake so far was a magnitude 4.5 event that was felt widely.
Colombian volcanologists mapped the risk zones for each of the two volcanoes. Neither of them has recorded historical eruptions and little is known about their activity. Whether or not the current unrest leads to an eruption in a near or medium-term future (months, years), and if so, which of the two volcanoes would be involved is unknown.
Since the location of the volcanoes is at the Ecuadorian border, the Ecuadorian civil defense SNGR (Secretaría National Management Riesgos) also raised an yellow alert for the potentially affected area in Ecuador.
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Links / Sources:
Previous news
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. ... [more]

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