The so-called earthquake swarm at Mount Rainier dwindled Friday but has surpassed the last large event at the volcano in 2009 ...

The series of earthquakes is the first major swarm of seismic events since 2009. Is it safe if you’re planning on visiting?

The U.S. Geological Survey Cascades Volcano Observatory said the swarm began early Tuesday at the 14,410-foot volcano near ...

Ever been late because you misread a clock? Sometimes, the "clocks" geologists use to date events can also be misread.

Experts are warning that hundreds of dormant volcanoes around the world will likely become more active and erupt thanks to ...