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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
Mayon - photo Phivolcs 08.03.2019

Mayon - photo Phivolcs 08.03.2019

The Phivolcs reports 6 volcanic earthquakes and 2 rock falls during the last 24 hours at Mayon.

Two of these earthquakes are related to episodes of phreatic eruptions of March 7 at 8:11 AM and March 8 at 6:27 AM, which generated gray ash plumes at a height of 500 and 300 meters, respectively. Moderate steam plumes were then emitted.

The alert level remains at 2 / moderate level of instability.

 

Source: Phivolcs

Kerinci - photo archive Magma Indonesia 19.01.2019 / 07:34

Kerinci - photo archive Magma Indonesia 19.01.2019 / 07:34

A yellow VONA was issued on March 7 for Kerinci Volcano, West Sumatra, by Magma Indonesia (VAAC Darwin reports an orange aviation code); it follows the emission of brown ash at 18:50 local, with dissipation towards the NE.

VA ADVISORY
DTG: 20190307 / 1420Z
VAAC: DARWIN
VOLCANO: KERINCI 261170
PSN: S0142 E10116
AREA: INDONESIA
SUMMIT ELEV: 3800M
ADVISORY NR: 2019/3
INFO SOURCE: VONA
AVIATION COLOR CODE: ORANGE 

RMK: 07 / 1355Z VON FOR VA ERUPTION TO FL130 AT 07 / 1150Z MOV

 

Sources: Magma Indonesia, VAAC Darwin

In Peteroa, in Chile, the cameras always show a constant degassing of gray color, marked by a plume at a height of less than 2,000 meters, indicating the presence of particles, moving mainly towards the southwest.

The seismicity of the last days is characterized by VT earthquakes, associated with the fracturing of rocks, and a large number of LP earthquakes, in relation with the dynamics of the internal fluids.

The superficial activity of Peteroa suggests that we are dealing with an open system. Alert level remains at Amarillo / change in behavior of volcanic activity.

 

Source: Sernageomin

 Barren island - image Sentinel 2 bands 12,11,4 from 07.03.2019 - one click to enlarge

Barren island - image Sentinel 2 bands 12,11,4 from 07.03.2019 - one click to enlarge

Activity continues on Barren Island, Andamman Islands;

The intensity is moderate, marked by a few small thermal anomalies at 5 and 10 Mw, respectively on March 5th and 6th, and 49 MAw on March 8th.

A Sentinel 2 image of March 7 shows a hot spot at the cinder cone's crater, located in a caldera covered with lava and pyroclasts.

 

Sources: Mirova and Sentinel 2

New cracks and new lava flows at Piton de la Fournaise Uploaded by IMAZPRESS Reunion on 2019-03-07.

At the Piton de La Fournaise, little new information this morning, waiting for a possible overflight by the teams of the observatory.

The activity was intense last night, with a reverberation of the incandescence on the clouds, visible from the 4 webcams. The Mirova site lists a very high thermal anomaly on March 7th at 10:20 pm, of 3,281 MW.

To be continued ...

Sources: OVPF and Mirova webcams

Piton de La Fournaise - 07.03.2019 / 18:15 UT Webcam Piton Partage / OVPF- reverberation on the clouds
Piton de La Fournaise - 07.03.2019 / 18:15 UT Webcam Piton Partage / OVPF- reverberation on the clouds

Piton de La Fournaise - 07.03.2019 / 18:15 UT Webcam Piton Partage / OVPF- reverberation on the clouds

Piton de la Fournaise - 07.03.2019 / 19h39 TU Webcam Cascades / OVPF

Piton de la Fournaise - 07.03.2019 / 19h39 TU Webcam Cascades / OVPF

Piton de la Fournaise - Thermal anomalies on 07.03.2019 / 22:20 - Doc. Mirova

Piton de la Fournaise - Thermal anomalies on 07.03.2019 / 22:20 - Doc. Mirova

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