More than 300 tremors were recorded below Mount Rainier over the course of three days. Scientists say they were too weak for ...

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

SEATTLE — Clusters of small earthquakes have popped off under western Washington in the last month, with many of them happening right under the Mount Rainier volcano. These clusters have been ...