MOUNT ETNA, Italy (AP) — Guides who take tourists to enjoy the striking views of Sicily’s Mount Etna are up in arms over tougher restrictions imposed by local authorities after a round of eruptions at ...

Add Yahoo as a preferred source to see more of our stories on Google. When you think of the United States, images of sprawling cities and vast landscapes might come to mind, but not the hidden and ...

Before arriving in Japan, I had never considered hiking up a mountain in full winter gear just to race back down it on a thin piece of wood. My idea of a ski trip included semi-early mornings and a ...

When the sixth-strongest earthquake ever recorded hit Russia’s Kamchatka Peninsula last week, it triggered tsunami warnings around the world as waves rippled across the Pacific as far as the U.S., ...

On the flanks of Washington State Mount Rainier, a spike in seismic rumbling has revived an old, unsettling question for the Pacific Northwest: what happens when the region’s most dangerous volcano ...

Popocatépetl Volcano, Mexico — In the predawn darkness, a team of scientists climbs the slope of Mexico's Popocatépetl volcano, one of the world’s most active and whose eruption could affect millions ...

When you think of the United States, images of sprawling cities and vast landscapes might come to mind, but not the hidden and ever-present geological threat: volcanoes. While you might associate ...