Schlagwort: volcano

Satellite image of the ongoing activity at Veniaminof volcano (image: AVO)

The effusive-explosive eruption of the volcano continues at low levels.
The latest clear high-resolution satellite imagery from 7 March shows that the activity of the volcano continues from two vents – cone within the summit caldera (same location as the 2018 eruption vent) and flank vent on the east slope in the inner glacier-filled caldera known as flank-to-lateral eruption.
The explosive activity from the cone in the summit caldera continues at lesser, but near-constant intensity and generates ash emissions that reached 11,000 ft (3,400 m) altitude spreading about 22 km to the SE and about 14 km to the NE of the volcano.
The lateral effusive eruption, indicating magma-filled dyke intersected the surface, continues to be active from the eastern flank vent at about 1 km distance from the summit cone. An emitting lava flow causes phreatic-phreatomagmatic explosions at interaction with snow, ice and water. A gas-steam plumes rose to an estimated 3,5 km altitude.
Both vents are producing ash and gas-steam emissions at the same time as can be seen in image below.
Source: Alaska Volcano Observatory volcano activity update 10 March 2021

Both vents are producing ash and gas-steam emissions at the same time (image: AVO)

Dense dark ash plume generated from San Cristobal volcano yesterday (image: @SkyAlertMx/twitter)

SINAPRED reported that a series of five moderate-to-strong vulcanian-type explosions occurred at the volcano between 13:06 and 13:32 local time yesterday.
The strongest eruption at 01:25 local time triggered a dense, dark ash column to an estimated altitude of 8,000 ft (2,400 m) which extended about 17 km to the southwest of the volcano. Ashfall was reported in cities of El Viejo, Chinandega and Chichigalapa.
Expected explosions in the near future will not threaten inhabited areas, but volcanological observatory recommends to keep general precautions.

AVISO:
Entra en erupción el #Volcán #SanCristóbal en #Nicaragua