Update on seismic swarm that began on July 8, 2025, at Mount Rainier, Washington—activity has returned to background levels. (Video shows Rainier’s summit as observed during a helicopter overflight by the CVO gas-monitoring team on August 4, 2025.) Information Statement: https://ow.ly/Cqfr50WLNxY SUMMARY Seismic activity at Mount Rainier has returned to normal background levels following an earthquake swarm that began on July 8, 2025. The Volcano Alert Level and Aviation Color Code for Mount Rai
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