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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
 Nevados de Chillán complex  - photo Sernageomin

Nevados de Chillán complex - photo Sernageomin

On February 7 at 8:07 p.m. local / 11:07 p.m. UTC the seismic stations of Nevados de Chillan recorded a volcano-tectonic earthquake of magnitude 3.1, associated with the fracture of rocks, at 1.6 km from the Nicanor crater, and a depth of 2, 7 km.

No change in surface activity was associated with this earthquake.

The technical alert level remains in Naranja

 

Sources: Sernageomin & Onemi

On February 7 at 8:07 p.m. local / 11:07 p.m. UTC the seismic stations of Nevados de Chillan recorded a volcano-tectonic earthquake of magnitude 3.1, associated with the fracture of rocks 1.6 km from the Nicanor crater, and a depth of 2, 7 km.  No change in surface activity was associated with this earthquake.  The technical alert level remains in Naranja     Sources: Sernageomin & Onemi

On February 7 at 8:07 p.m. local / 11:07 p.m. UTC the seismic stations of Nevados de Chillan recorded a volcano-tectonic earthquake of magnitude 3.1, associated with the fracture of rocks 1.6 km from the Nicanor crater, and a depth of 2, 7 km. No change in surface activity was associated with this earthquake. The technical alert level remains in Naranja   Sources: Sernageomin & Onemi

In Costa Rica, the Poas presents a degassing at the level of the acid lake, well filled, and of the mouth B; a weak background tremor is recorded. No eruptive phenomenon is reported.
 

Activity of  Nevados de Chillán, Poás, Rincón de La Vieja and Villarica.

After the phreatic eruption of last week, the seismic activity of Rincon de La Vieja has been showing from 3 h on February 7 a background tremor and earthquakes LP and tornillo.

An overflight of the volcano was carried out on February 6; it revealed fumaroles, degassing is the only surface activity.

 

Sources: Ovsicori and RSN

Rincon de La Vieja - overview of 06.02.2020 - Doc. Dr. Paulo Ruiz (Red Sismológica Nacional) y el Dr. Cyrill Muller (OVSICORI).

Rincon de La Vieja - overview of 06.02.2020 - Doc. Dr. Paulo Ruiz (Red Sismológica Nacional) y el Dr. Cyrill Muller (OVSICORI).

Rincon de La Vieja - overview of 06.02.2020, no big morphological changes in the crater - Doc. Dr. Paulo Ruiz (Red Sismológica Nacional) y el Dr. Cyrill Muller (OVSICORI).

Rincon de La Vieja - overview of 06.02.2020, no big morphological changes in the crater - Doc. Dr. Paulo Ruiz (Red Sismológica Nacional) y el Dr. Cyrill Muller (OVSICORI).

POVI reports ejections of lava spatter captured by webcams on January 31, 2020 at Villarica.

A small glow is noticed in the night from February 7 to 8.

 

Source: POVI

Villarica - 950 nm infrared IR webcam on 01.31.2020 / 01.25 a.m. - Doc.POVI

Villarica - 950 nm infrared IR webcam on 01.31.2020 / 01.25 a.m. - Doc.POVI

Villarica - webcam with 200 and 500 mm lenses respectively on 31.01.2020 / 01h25 - Doc.POVI

Villarica - webcam with 200 and 500 mm lenses respectively on 31.01.2020 / 01h25 - Doc.POVI

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