Krakatau volcano (Sunda Strait, Indonesia): clear satellite image shows plume likely from intermittent explosions
sam., 7 août 2021, 16:2316:23 PM | AUTEUR : T
This morning's Sentinel-2 image in false color showing the island of Anak Krakatau and the steam plume and thermal anomaly from the crater lake
Recent seismic activity (image: MAGMA Indonesia)
The volcano remains active with at least some sort of eruptive activity going on: a cloud-free satellite image taken earlier today shows a pulsating steam plume coming from the lake-filled crater. A low to moderate thermal anomaly can be seen on processed data as well.
Thermal hot spots detected from the volcano (image: MIROVA)
The seismic station has been recording an increase of activity during the past weeks, with many explosion-like signals and volcanic tremors showing up as a significant part of the detected activity.
These data and observations suggest that there is likely intermittent, but frequent small explosive activity at the crater.
Due to the lack of recent direct observations from ground, such satellite-based and seismic observations currently provide the almost only way to learn what is going on at the volcano. We hope that soon it will be possible again to travel and observe it directly.
Satellite image of Krakatau volcano in the Sunda strait, Indonesia today 7th August.— Øystein L.A (@oysteinvolcano) August 7, 2021
Processed Sentinel-2 image@sentinel_hub pic.twitter.com/fUcITXG9kL
mer., 7 juil. 2021, 08:30
Krakatau Volcano Volcanic Ash Advisory: WEAK VA EMISSION TO FL050 OBS AT 07/0800Z MOV NW to 5000 ft (1500 m)
ven., 2 juil. 2021, 10:00