The tremors were too weak for humans to feel. But the frequency of them is the most since researches started monitoring the ...

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

A significant earthquake swarm was detected beneath Mount Rainier in Washington State, marking the most intense seismic activity in the area since 2009. Over 300 earthquakes have occurred since the ...

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

More than 300 earthquakes have erupted at Washington's Mount Rainier this week, the largest earthquake swarm at the volcano ...

SEATTLE (AP) — Officials are tracking the largest swarm of earthquakes in more than 15 years on Washington’s Mount Rainier ...

Several of Mount Rainier’s glaciers are already gone, experts say, and others aren’t far behind. The News Tribune asked what that means for visitors.

The 1980 eruption cycle made Mount St. Helens one of the most famous volcanoes in the Cascades. But it is far from the only volcano in the range.

Washington is earthquake and volcano country. With all the concern about recent earthquake activity at Mt. Adams and the 45th anniversary of the eruption of Mt. St. Helens what would happen if Mt.

Experts believe a Mount Rainier eruption would post a grave threat to millions who live in the southern and eastern sections of the Seattle metropolitan area.