Copahue volcano news & activity updates
Copahue volcano (Chile): seismic crisis and evacuation efforts continue
Donnerstag Mai 30, 2013 13:47 | VON: T
The seismic crisis continues, but has decreased in intensity. An eruption in the near future still remains a likely scenario, SERNAGEOMIN scientists emphazise, as this decrease in energy could be temporary. It is impossible to predict whether this is a question of days or weeks, or even if an eruption actually will occur.
Hazard map of Copahue and threatened villages (graphics created by El Mercurio newspaper)
At the same time, authorities (ONEMI) intensify their preventive measures and reported that 316 people have now been evacuated. It is estimated that more than 2,200 people live in the areas most at thread (Barco, Bultalelbún, Trapa Trapa, Guallalí).
A helicopter has been provided by ONEMI for survey and possible rescue operations, as well as shelters and generators to deliver electricity in cut-off areas.
Links / Quelle:
Links / Quelle:
- Infografía: Conoce las zonas de riesgo ante la inminente erupción del volcán Copahue (El Mercurio)
- Monitoreo Alerta Roja en comuna de Alto Biobío por situación del volcán Copahue (ONEMI)
Mittwoch, Mai 29, 2013
The earthquake swarm has increased and continues today, but the volcano has not yet erupted. The earthquakes are occurring at very high frequency (130 per hour) and are mostly "hybrid", i.e. related to both rock-fracturing and fluid-movements within the volcanic edifice. ... [mehr]
Montag, Mai 27, 2013
An eruption of the volcano could be imminent. SERNAGEOMIN and Civil Protection have raised the alert level to "red", based on the increasing earthquake activity under the volcano. Although so far no volcanic tremor (often a sign of eruptive activity) nor ash plumes have been detected via satellite, citizens of Caviahue in Argentina across the border from Copahue have reported explosions and incandescence from the volcano. ... [mehr]
Sonntag, Mai 26, 2013
Although degassing and ash emissions have decreased, seismic activity at the volcano has picked up, SERNAGEOMIN reported. An average of 356 earthquakes per hour, sometimes merging into what looks as volcanic tremor, has been recorded recently. This could be related to intruding magma from a new batch of magma rising at the moment and as a result, phreatomagmatic or magmatic activity could occur at the surface in the near future. ... [mehr]
Samstag, Mai 25, 2013
A steam and ash plume is rising about 1-1.5 km from the crater where it is emitted by 3 vents. Two of these emit only gas and steam. The third one erupts some ash as well, Chilean scientists found out during an helicopter overflight. ... [mehr]
Freitag, Mai 24, 2013
SERNAGEOMIN has raised the alert level to orange. Since May 15, a progressive increase in seismic activity as well emissions of gas and now some ash have been observed. ... [mehr]