At Mount St. Helens, volcano monitoring and trail maintenance efforts are set to degrade without help from federal agencies.

The NTWC said a preliminary assessment indicated that the earthquake was a 6.6-magnitude ... Nord-Jan is dominated by Beerenberg, an active volcano rising to 2,277 meters, making it the highest ...

The largest active volcano in Washington state has been rocked by a series of earthquakes, putting experts on high alert. Mount Adams is a 12,000-foot-tall stratovolcano located in south-central ...