News & activity updates from Puyehue volcano, Chile
Puyehue-Cordón Caulle volcano (Chile): eruption update
Tuesday Jun 14, 2011 05:20 AM |
Puyehue-Cordón Caulle, 13 June 2011: image from camera number 2 at 20:50 GMT.
The eruption at Puyehue-Cordón Caulle is still going strong, producing a pulsating 4-8 km high column of ash and incandescent material visible at night at the base of the eruption column. The Volcanism Blog has posted a great summary of the latest two reports of SERNAGEOMIN from 11 and 12 June. The key points are:
Incandescence is visible at the bottom of the plume at night (13 June 2011, 05:23 GMT)
- It is confirmed that the vent of the oingoing eruption is a new fissure at the head of Nilahue river and immediately north of the 1960 eruptive fissure.
- The height of the ash column varies considerably and changes in short time. During pulses of stronger activity, the plume reaches up to 8 km, ballistic blocks reach up to 1 km distance and small column collapses (generating pyroclastic flows ?) were observed at the base of the column.
- A new cone has been built at the vent, with a 300-400 m wide new crater.
- Significant amounts of ash have accumulated east of the volcano, and floating pumice is observed on Maihue, Huishue, Gris and Puyehue lakes. No fresh ash is found on the south-western part of Cordón Caulle and the western slopes.
- The fresh ash around the volcano poses a significant hazard of lahars during strong rains.
Thanks to Ralf Harrington for keeping us updated!
Links / Sources:
Links / Sources:
Monday, Jun 13, 2011
The eruption at Puyehue volcano shows no signs of exhaustion. While the plume had decreased significantly after the initial eruptions, the eruption has increased again in the past days and the volcano is now producing a near-constant ash column which reaching 4 to up to 10 km altitude and drifting east (VAAC Buenos Aires). ... [more]
Friday, Jun 10, 2011
The eruption at Puyahue volcano has weakened a lot in the past days. As of today, 10 June, the volcano continues to erupt, but the ash cloud reaches "only" 15,000 ft (ca. 5 km) altitude, compared to >10 km in the previous days. (VAAC Buenos Aires) [more]
Thursday, Jun 09, 2011
The eruption at Puyehus volcano has decreased, but the volcano continues to emit an impressive ash plume, but there is still a lot of ash in the atmosphere above a large swath of Argentina, causing a hazard for flight operations. ... [more]
Tuesday, Jun 07, 2011
The intensity of the eruption continues at more or less the same level as yesterday. A sustained column of ash rises from the Caulle vent area to 10-12 km altitude, drifting NE. The ash affects many regional flights within Argentina as well between Argentina and Chile, many of which have been cancelled. Flights within Chile so far seem to be operating normally. [more]
Monday, Jun 06, 2011
The spectacular explosive eruption at Puyehue volcano continues, although its intensity seems to have decreased slightly. It is producing a sustained column of ash that reaches 10-12 km altitude and is currently drifting NE. Significant ash fall is occurring SE, E and NE of the volcano including the province of Río Negro, Argentina, with the popular resort town of Bariloche, where heavy ash fall is reported and causing problems to daily life and infrastructure. ... [more]