Cerro Machin volcano (Colombia): seismic swarm

lun., 11 févr. 2013, 16:37
16:37 PM | AUTEUR : T
Seismogram last night from Cerro Machin (CIMA station, INGEOMINAS)
Seismogram last night from Cerro Machin (CIMA station, INGEOMINAS)
Current seismogram from Cerro Machin (CIMA station, INGEOMINAS)
Current seismogram from Cerro Machin (CIMA station, INGEOMINAS)
A swarm of volcano-tectonic earthquakes occurred from 16:36 h (local time) until 19:25 h last night. The quakes were localized mainly to the southeast of the dome, at depths ranging between 2 and 4.5 km.
The largest earthquake was recorded at 17:40 h with a magnitude of 2.9 ML and one at 17:21 of magnitude 2.6 ML. Both were felt by residents near the volcano. Other parameters monitored by INGEOMINAS have not shown significant changes.
Such swarms have occurred frequently under the volcano since instrumental monitoring of the volcano began. INGEOMINAS maintains alert level "yellow".

Actualités précédentes

jeu., 7 févr. 2013, 10:54
The volcano continues to show seismic activity above background, mainly in the form of frequent tiny volcanic earthquakes. ... Read all
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