Chillán volcano news & activity updates:
Nevados de Chillán volcano (Chile): weak occasional ash eruptions
Donnerstag Jul 21, 2016 15:30 | VON: T
Weak ash emission from Nevados de Chillán this morningThe volcano has been very calm during the past weeks, but now began again to emit occasional small ash puffs and pulsating gas emissions.
In its latest bulletin, SERNAGEOMIN reported that no significant variations in monitoring parameters had been detected overall during the past 2 weeks, except a weak increase in SO2 output and the occurrence of (more than 700 in total) long-period earthquakes related to internal fluid movements.
It concludes that the volcanic system remains in an unstable condition and could produce explosions with little warning.
The official alert level remains therefore at yellow and an exclusion zone of 2 km around the crater is recommended.
Montag, Mai 09, 2016
Two new phases of ash explosions occurred at the volcano this morning. The first and strongest occurred at 13:03 local time, generating a dense ash plume that rose 1700 m above the crater, followed by a weaker series of ash emissions at 14:40. ... [mehr]
Mittwoch, Apr 20, 2016
New ash emissions occurred yesterday morning, generating a small plume that rose approx. 500 m. According to Sernageomin, this activity is not caused directly by fresh magma, but related to disturbances of the shallow hydrothermal system which interacts with an underlying, probably only small body of magma. ... [mehr]
Donnerstag, Mär 31, 2016
Intermittent ash emissions re-appeared at the volcano during the past days. ... [mehr]
Freitag, Mär 04, 2016
A small eruption occurred at the volcano again yesterday, the first activity since the mild explosive activity on 7 February. Starting around noon, the volcano began to emit a steam plume of variable intensity, sometimes mixed with ash. The activity took place at one of the new craters that had formed in early February. ... [mehr]
Montag, Feb 01, 2016
A series of new explosions with small to moderate ash emissions occurred at the volcano during the end of last week. This activity formed a second new crater, approx. 25x30 m wide and located 50 m beneath the northeast flank of Arrau crater, as SERNAGEOMIN staff observed on an overflight on 30 January. ... [mehr]