The largest ever earthquake swarm has been recorded at Washington's Mount Rainier, with officials saying there is no cause for concern.

Hundreds of small earthquakes have rattled Mount Rainier this week in the largest swarm of tremors in more than a decade. But experts say there's no need to panic-at least not yet. "Currently ...

PORTLAND, Ore. (KOIN) — Geologists are continuing to monitor Mount Rainier in Washington state days after the first earthquake swarm in more than 15 years, with this year’s earthquake swarm ...

The swarm resulted in more than 1,000 earthquakes and the largest was of a 2.3 magnitude, according to the U.S. Geological Survey. Can the earthquake swarm cause a volcanic eruption?

An earthquake swarm at Mount Rainier is considered one of the largest ever recorded for the volcano, according to the United States Geological Survey.

Earthquake swarm continues at Mount Rainier, surpassing 2009 records by: Kaitlin Flanigan Posted: Jul 10, 2025 / 03:37 PM PDT Updated: Jul 10, 2025 / 03:43 PM PDT ...

The last large earthquake swarm at Mount Rainier occurred in 2009 and lasted for three days. The swarm resulted in more than 1,000 earthquakes and the largest was of a 2.3 magnitude, according to ...

SEATTLE — 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 ...

By comparison, researchers in 2009 located 120 earthquakes at Mount Rainier during a three-day swarm — the largest being a 2.5 magnitude originally identified as a 2.3 — although more than ...

Hundreds of small earthquakes have rattled Mount Rainier this week in the largest swarm of tremors in more than a decade. But experts say there's no need to panic -- at least not yet. "Currently ...

The earthquake swarm is not dangerous to hikers on the mountain and has posed no indication for concern, the Cascades Volcano Observatory wrote in a news release. As of July 10, the largest earthquake ...