More than 300 earthquakes have erupted at Washington's Mount Rainier this week, the largest earthquake swarm at the volcano ...

Mount Rainier is an active stratovolcano 45 miles southeast of Tacoma and 60 miles south-southeast of Seattle. Its last ...

A swarm of small earthquakes is still shaking Mount Rainier, marking the most significant seismic activity at the Cascade volcano in decades. The U.S. Geological Survey’s Cascades Volcano Observatory, ...

The Cascades Volcano Observatory uses information like this to create hazard assessments and hazard maps that they can share with emergency responders to inform the response to future eruptions.

The U.S. Geological Survey said it and other agencies were monitoring the situation and would issue additional alerts "as needed." ...

SEATTLE (AP) — Officials are tracking the largest swarm of earthquakes in more than 15 years on Washington's Mount Rainier but say there is no indication that the cluster of quakes is cause for ...

Samples of extremely small crystal clots, each polished to the thickness of a human hair or thinner, have revealed ...

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

Snowshoeing on Kīlauea? High fountain episodes pose new challenges to monitoring - Features | Hawaii Tribune-Herald ...

Hawaii's Kilauea volcano sent jets of lava shooting over 1,000 feet into the air early Friday morning, marking another explosive episode for the active volcano.

Jets of searing hot molten lava spewed more than 1,000 feet into the Hawaiian air Friday from the Kilauea volcano.