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Zufallsfotos
Copahue Vulkan
Schichtvulkan 2997 m / 9,833 ft
Chile/Argentina, -37.85°S / -71.17°W
Aktueller Status: unruhig (2 von 5)
Copahue Webcams / aktuelle Daten | Berichte
Copahue Vulkan-Videos
Copahue Vulkan-B cher
Ausbrüche des Copahue:
2000, 1992, 1961, 1937, 1867(?), 1759(?), 1750
Typische Aktivität:
explosive
Letzte Erdbeben in der Nähe
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Copahue volcano news & activity updates

Copahue volcano (Chile/Argentina) activity update

Samstag Mai 25, 2013 16:08 | VON: T

Steam-ash plume from Copahue on 24 May (SERNAGEOMIN webcam)
Steam-ash plume from Copahue on 24 May (SERNAGEOMIN webcam)
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.
It seems that (for now) this activity is phreatic, i.e. involves no fresh magma, only overheated water from the hydrothermal system, that can fragment rock into ash during explosive decompression. Temperature measurements gave a value of only 200°C at the vents.
Vorherige Nachrichten
Ash plume from Copahue seen from space (MODIS, via Blog Culture Volcan)
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]
Sonntag, Mai 12, 2013
SERNAGEOMIN has recently raised the alert back to yellow after new small explosions occurred at the volcano and incandescence was observed at the summit crater. A small but persistent steam-and-ash plume has been rising about 350 m from the volcano. Interestingly, little change in the seismic activity has been noticed with the incandescence and explosions, so it is not clear whether this new activity is caused by fresh magma rising towards the surface. [mehr]
Samstag, Apr 20, 2013
Volcanic unrest has been declared over and the volcanic alert level was lowered back to green, as well as the hazard level for the community of Alto Biobio. [mehr]
Freitag, Apr 12, 2013
A pilot reported the emission of steam, gas and minor amounts of volcanic ash from the volcano today (VAAC Buenos Aires). SERNAGEOMIN has not reported unusual activity and maintains alert level yellow. [mehr]
Dienstag, Apr 02, 2013
Based on analysis of satellite imagery and a pilot observation, the Buenos Aires VAAC reported that on 28 March steam-and-gas emissions with small amounts of ash rose from Copahue. [mehr]

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