Trident volcano (Alaska Peninsula): alert status lowered to Green
Do, 20. Okt 2022, 04:0604:06 AM | VON: MARTIN
A decision has been made by the Alaska Volcano Observatory (AVO) to reduce the Volcanic Alert Level for the volcano to "Green".
Trident volcano (image: Alaska Volcano Observatory)
To do so, monitoring instruments have detected no signs of increased earthquake swarm nor seismic tremor since 30 September.
Source: Alaska Volcano Observatory volcano activity update 20 October 2022
Mi, 5. Okt 2022, 14:00
Trident volcano (Alaska) - Smithsonian / USGS Weekly Volcanic Activity Report for 28 September-4 October 2022 (New Activity / Unrest)
AVO raised the Aviation Color Code for Trident to Yellow (the second lowest level on a four-color scale) and the Volcano Alert Level to Advisory (the second lowest level on a four-level scale) on 29 September due to an ongoing seismic swarm. The swarm began on 24 August and within about four days the seismic network began detecting episodes of weak seismic tremor and low frequency earthquakes. The events were initially located at depths around 25 km, but then they progressively shallowed to around 5 km by 28 August. ... Read all
Fr, 30. Sep 2022, 08:00
Trident volcano (Alaska Peninsula): elevated volcanic-seismic unrest, Aviation Color Code raised to Yellow
The earthquake swarm beneath the volcano continues. ... Read all