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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 activity remains high, but less than in Oct-Nov

Monday Dec 08, 2014 09:49 AM | BY: TOMPFEIFFER

Histogram of earthquakes at Chiles volcano (IGPEN)
Histogram of earthquakes at Chiles volcano (IGPEN)
Location of last week's earthquakes (IGPEN)
Location of last week's earthquakes (IGPEN)
Seismic activity continues to be important. In the last week, almost 20,000 earthquakes with a daily average of 2845 were detected. 5 of them were felt by the local population, the largest one was a 3.8 event on 2 Dec at 17:58 local time.
Compared to October and November this year, when daily averages were 3740 and 4579, respectively, seismic activity has declined a lot, but remains high.
The epicenters of most quakes are located a few kilometers south-west of the Chiles volcano.
Deformation measurements show no major changes (slight ongoing inflation). According to local observers, no changes on the ground are detected (fumarolic areas, water sources etc).
Previous news
Thursday, Dec 04, 2014
The volcano's alert level was decreased to Yellow. Seismic remains above background, but has decreased significantly recently. [more]
Saturday, Nov 22, 2014
The seismic crisis that began last year continues at high intensity. During the ongoing swarm more than 206,000 earthquakes have been detected in an area 4 km south of the Chiles-Cerro Negro complex since 29 Sep alone. Daily numbers of quakes have ranged between 3700-5400 earthquakes. ... [more]
Wednesday, Oct 22, 2014
Orange alert has been declared for the volcanic complex at the Colombia-Ecuador border, after a magnitude 5.8 earthquake occurred under the volcano last Monday. ... [more]
Wednesday, Jul 23, 2014
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. ... [more]
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. ... [more]

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