A Volcano Wakes Up

Earthquakes, small eruptions, and a new lava dome unsettle Mount St. Helens.

By Kate Ramsayer, 00:00 AM December 13, 2004

After resting for nearly 2 decades, Mount St. Helens woke up this fall. Shaking ground and a skyward blast proved to the world that it's still an active volcano.

Tiny earthquakes had been shaking the mountain for a week before it erupted on Oct. 1, 2004. The volcano spewed a gray plume of steam and ash 10,000 feet into the air. Hot magma began oozing out of the crater a few weeks later. As it kept coming, the magma literally built a small mountain in front of scientists' eyes.

Mount St. Helens on a quiet day this fall, just before it spewed steam and ash into the air on Oct. 1, 2004.

Mount St. H...

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