The BriefMount Rainier's recent seismic swarm has surpassed 2009 records, with 391 events since July 8.Scientists report ...

The so-called earthquake swarm at Mount Rainier dwindled Friday but has surpassed the last large event at the volcano in 2009 ...

Hawaiian Volcano Observatory field engineers on July 10, 2025, visited monitoring stations downwind of the Kīlauea summit ...