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.

( NewsNation) — A tsunami warning has been issued for areas of southcentral and southwest Alaska. It follows a 7.3-magnitude ...