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Earth of fire

Actualité volcanique, Articles de fond sur étude de volcan, tectonique, récits et photos de voyage

Publié le par Bernard Duyck
Publié dans : #volcanic activity
Agung - Ash plume on 30.04.2019 / 5h39 WITA - Webcam PVMBG

Agung - Ash plume on 30.04.2019 / 5h39 WITA - Webcam PVMBG

An eruptive episode marked the Agung this April 30 at 5:34 WITA. It was recorded for 2 minutes 15 sec., with a max amplitude of 25 mm.

An ash plume, gray and thick, was observed 1,000 meters above the summit. Ash falls are reported on the surrounding villages;

Bali airport is functioning normally, and the activity level remains at 3, with a danger zone of 4 km.

Sources: PVMBG, Magma Indonesia

Agung - seismogram of 30.04.2019 - Doc. Magma Indonesia

Agung - seismogram of 30.04.2019 - Doc. Magma Indonesia

In Peru, the explosive activity of Sabancaya continues intermittently.

On April 29, VAAC Buenos Aires reported an ash plume at about 8,800 meters (flight level 290) at 13:20 UTC; another episode was accompanied by a plume of ash, reported at 7.900 meters of altitude (flight level 260) at 19:19 UTC.

Source: VAAC Buenos Aires.

Sabancaya - Volcanic ash advisory 29.04.2019 / 13:20 - Doc. VAAC Buenos Aires

Sabancaya - Volcanic ash advisory 29.04.2019 / 13:20 - Doc. VAAC Buenos Aires

At the Chilio-Argentina border, Copahue monitoring stations recorded a volcano-tectonic earthquake of ML 3.1 on 29 April at 17.52 local time; its epicenter is located 10.3 km northeast of the crater El Agrio and associated with rock fracturing.

Three replicas of lesser amplitude followed; No superficial anomalies are visible on the webcam.

 

Source: Sernageomin

Copahue - calm outside - photo Valecaviahue 07.04.2019 - one click to enlarge

Copahue - calm outside - photo Valecaviahue 07.04.2019 - one click to enlarge

At Erta Ale, in Ethiopia, the activity is divided into two parts: a degassing at the level of the old lava lake in the caldera, and some radiative spots in the far field, of VRP between 10 and 117 MW.

 

Sources: Sentinel 2 and Mirova

Erta Ale - degassing in the caldera and hot spots in far field - images Sentinel 2 bands 12,11,8A 24 and 29.04.2019 - one click to enlarge
Erta Ale - degassing in the caldera and hot spots in far field - images Sentinel 2 bands 12,11,8A 24 and 29.04.2019 - one click to enlarge

Erta Ale - degassing in the caldera and hot spots in far field - images Sentinel 2 bands 12,11,8A 24 and 29.04.2019 - one click to enlarge

Erta Ale - thermical anomalies on 29.04.2019 / 22.30 - Doc. Mirova_MODIS_Latest10NTI

Erta Ale - thermical anomalies on 29.04.2019 / 22.30 - Doc. Mirova_MODIS_Latest10NTI

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