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 ...

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 s… ...

Hundreds of small earthquakes have rattled Mount Rainier this week in the largest swarm of tremors in more than a decade.

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 ...

MOUNT RAINIER, Wa. (WRBL)- The United States Geological Survey (USGS) has announced that an earthquake swarm has begun beneath Mount Rainier. Earthquake Swarm under Rainier on July 8th (WRBL) Accor… ...

More than 300 earthquakes have erupted at Washington's Mount Rainier this week, the largest earthquake swarm at the volcano since 2009. As of Thursday, July 10, 334 earthquakes had been identified ...

Earthquake swarms occur at Mount Rainier once or twice each year, but they don't usually include hundreds of earthquakes. However, more than 1,000 earthquakes struck during the 2009 swarm, which ...

Over 200 earthquakes have been detected around Mount Rainier, ... Earthquake swarm detected at Mount Rainier, biggest since 2009. Brian Lada. Wed, July 9, 2025 at 5:59 PM UTC. 1 min read.

SEATTLE — Officials are tracking the largest swarm of earthquakes in more than 15 years on Washington's Mount Rainier but say ...

A strange earthquake swarm lasted for years. Scientists finally know why. A new high-resolution view into Earth's crust shows what caused more than 22,000 tiny temblors to rumble in Southern ...