Increased rate of uplift near South Sister volcano, Oregon

Increased rate of uplift near South Sister volcano, Oregon

Cascades Volcano Observatory geophysicists have detected a subtle increase in the rate of uplift of the ground surface about 5 km (3 miles) west of South Sister volcano, Oregon, U.S. Episodes of increased uplift have been observed in this area before, and the…

The Weekly Volcanic Activity Report: January 26 – February 1, 2022

The Weekly Volcanic Activity Report: January 26 – February 1, 2022

New activity/unrest was reported for 10 volcanoes from January 26 to February 1, 2022. During the same period, ongoing activity was reported for 15 volcanoes. New activity/unrest: Ambae, Vanuatu | Ambrym, Vanuatu | Batu Tara, Komba Island | Callaqui, Central Chile |…