Scientists warn that the Alaska volcano Mount Spurr is likely to erupt soon, showering ash on Anchorage and potentially ...

When Mount St. Helens in Washington erupted nearly 45 years ago, it killed 57 people, destroyed hundreds of homes, spread ash to at least 10 other states and blasted a wide, horseshoe-shaped crater ...

The recent earthquakes have been small — ranging from magnitudes of 0.9 to 2.0 — but the federal government has only one seismometer in the vicinity of Mount Adams, the second-tallest volcano ...

[10DotMatrix] has a budding interest in seismology, so she decided to make her own seismometer out of some easy-to-find materials. Seismometers are prohibitively expensive for hobbyists ...

In 2006, Biggs picked up some deformation signals in a volcano in Ecuador that wasn’t being monitored. She contacted the observatory who sent someone out to assess the situation: “When they got there ...

In response to the looming threat, scientists have strengthened the Mount Rainier Lahar Detection System, an advanced network of seismometers and sensors placed on the volcano's slopes and along ...

The fear of a Yellowstone supereruption, which ultimately went viral, may have begun back in February when a seismometer called ... lava in the area around the volcano - the ash alone poses ...