Mount Rainier, the active stratovolcano that experienced an unusual but benign swarm of tiny earthquakes this past summer, isn’t suddenly showing seismic-tremor activity despite a recent news report ...

A snowcapped backdrop to Seattle and Puget Sound, Mount Rainier is a slumbering giant that last erupted in the 1890s.

Mount Rainier’s quiet, snowcapped profile hides a restless interior that has just rattled itself with more than a thousand tiny earthquakes, a reminder that one of the country’s most dangerous ...

The United States has a range of active volcanoes to offer in its geography, apart from other natural wonders. From Mount St Helens in Washington to the Mauna Loa in Hawaii, these structures have a ...

(CNN) — Here's some background information about volcanoes, mountains that open downward to a reservoir of molten rock. Facts: More than 80% of the Earth's surface, both above and below sea level, is ...