A seismologist from Seattle discussed recent volcanic activity across the United States. Here's what you should know.

Lava in Hawaii, seismic shaking in Alaska and underwater rumblings near Oregon. Scientists say it’s not the end of the world, ...

Volcanoes across the country are beginning to wake up and erupt, and no one has a good explanation for why it's happening.

North of Iliamna, another Alaskan volcano, Mount Spurr, has been experiencing swarms of shallow earthquakes since February. It's now at a normal advisory level.