Copahue volcano news & activity updates
Copahue volcano (Chile / Argentina border) - eruption likely phreatic according to press release
Saturday Dec 22, 2012 19:57 PM | BY: T
According to SERNAGEOMIN, the eruption is most likely a small phreatic event. This is a abbreviated translation of the latest press release:
- From 10:45 local time, the seismic signal recorded at stations installed around the volcano Copahue showed a rapid increase and was characterized by strong low frequency tremor.
- The tremor signal correlated with an increase in the gas column, which turned black as ashes were erupted. The plume reached a height of 1.5 km and drifted about 13 km to the SW.
- Given the nature of the suddenly rising seismic signal with no detected precursory seismic activity, the low height of the eruption column, which implies a low temperature, and the presence of an extensive hydrothermal system at the volcano, the still continuing eruption is a minor phreatic eruption. It is expected to primarily affect areas near the crater and ash fall confined to proximal surrounding areas.
However, it is possible that the current activity evolves into a major event.
Links / Sources:
Links / Sources:
- Reporte Especial Actividad Volcánica (REAV) N°16 (SERNAGEOMIN)
Saturday, Dec 22, 2012
A Satellite image taken on 14:00 on 22 November shows a large ash plume drifting 110 KM SE from Copahue volcano. Ash fall has been reported in Loncopue village in Argentina, 50 KM SE of the volcano. The volcano's last confirmed eruption was in 2000, although one report stated eruptions in 2001 as well. ... [more]
Friday, Sep 28, 2012
Intense steaming can be observed from the El Agrio crater lake as the following recent video shows: ... [more]