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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
Fuego - Landsat-8 SWIR image from 26.01.2022 - via Insivumeh - one click to enlarge

Fuego - Landsat-8 SWIR image from 26.01.2022 - via Insivumeh - one click to enlarge

Fuego - Lansat-8 bands 7.6.2 image from 01.27.2022 - via Insivumeh - one  click to enlarge

Fuego - Lansat-8 bands 7.6.2 image from 01.27.2022 - via Insivumeh - one click to enlarge

The Fuego Volcano Observatory reports 5 to 7 weak and moderate explosions per hour. These explosions generate a column of ash from a height of 4,300 to 4,600 meters above sea level (14,108 to 15,092 feet) which disperses to the west and southwest of the volcano; low and moderate rumblings are reported, which cause vibrations in the roofs and windows of houses near the volcano.

Weak, moderate and strong avalanches are observed around the crater, and weak and moderate avalanches towards the barrancas Ceniza, Taniluyá and Trinidad and weak towards the barrancas Santa Teresa and Las Lajas.

A sound similar to a train locomotive lasting 5-8 minutes is reported, sometimes the sound is heard continuously with durations of 20-30 minutes.

Ash falls are reported in the communities of Panimaché I, Morelia, Santa Sofía, Palo Verde el Porvenir and others in this direction.

A lava flow in the direction of the Ceniza ravine with a length of 40 meters is reported, in front of this lava flow constant avalanches are generated in the direction of the barrancas Ceniza and Trinidad.

 

Source: Insivumeh / OVFGO

Callaqui - Night glow in the southwest of the crater - Doc. Sernageomin

Callaqui - Night glow in the southwest of the crater - Doc. Sernageomin

The Sernageomin reports the appearance of nocturnal incandescence in the southwestern sector of the crater of the Callaqui volcano, at 9:55 p.m. local time on January 26, 2022.

It is interpreted as a sign of an increase in temperature of uninterrupted emissions.

On the day of January 27, the degassing is observed with great intensity, coinciding with the incandescent focus, reaching a height of 380 meters usually recorded.

The volcanic technical alert is maintained for the moment at Green.

Callaqui - photo Oscar González-Ferrán (University of Chile) in GVP-06946

Callaqui - photo Oscar González-Ferrán (University of Chile) in GVP-06946

The Callaqui volcano is a volcanic center located in the Biobío region whose volcanic edifice was built by successive fissure eruptions. The oldest volcanic units have been dated to around 500,000 years old, while later units cover a wide range in the Late Pleistocene-Holocene.

Morphologically, the Callaqui volcano is an elongated center in a NE-SW direction due to the presence of notable dyke complexes and chains of pyroclastic cones of this orientation.
The magmas evacuated by the Callaqui volcano are mainly basalts and basaltic andesites evacuated mainly during Hawaiian and Strombolian eruptions.

 

Source: Sernageomin

Sakurajima - explosion of 28.01.2022 seen from the observatory of Satsuma Meiji Village / Tarumizu city, - Zaiho video https://youtu.be/eHfw8z8c-No

The Sakurajima presented an explosion on January 28, 2022 at 1:19 p.m. local time; it was accompanied by a plume of gas and ash at 3,400 meters.

 

Source: Zaiho Video

Sakurajima - Sentinel-2 bands 12,11,4 image dated 01.28.2022 - one click to enlarge

Sakurajima - Sentinel-2 bands 12,11,4 image dated 01.28.2022 - one click to enlarge

On January 27, 2022 at 7:16 a.m. local time, an eruption is recorded at the level of the Rincón de la Vieja volcano, the height reached by the column is unknown due to the visibility conditions of the site.
Duration of the activity: 1 minute.
No ash fall is reported, nor smell of sulfur.
A small lahar has been detected.

 

Source: Ovsicori

Rincón de la Vieja - eruption and partial outflow of the acid lake on the northern flank - photo 25.01.2022 Volcanes sin Fronteras

Rincón de la Vieja - eruption and partial outflow of the acid lake on the northern flank - photo 25.01.2022 Volcanes sin Fronteras

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