When Did Rainier Last Erupt?

Mount Rainier, also known as Tahoma or Tacoma, is a large active stratovolcano in the Cascade Range of the Pacific Northwest, located in Mount Rainier National Park about 59 miles south-southeast of Seattle.

How often does Mount Rainier erupt?

Although Mount Rainier has not produced a significant eruption in the past 500 years, it is potentially the most dangerous volcano in the Cascade Range because of its great height, frequent earthquakes, active hydrothermal system, and extensive glacier mantle.

Will Mount Rainier erupt again?

Over the past half million years, Mount Rainier has erupted again and again, alternating between quiet lava-producing eruptions and explosive debris-producing eruptions. ... While Mount Rainier's last eruptive period was about 1,000 years ago, Mount Rainier is considered an active volcano and will have future eruptions.