The U.S. Geological Survey said it and other agencies were monitoring the situation and would issue additional alerts "as ...

Mount Aso: a journey to the heart of Japan's dream landscapes Mount Aso is one of the largest active volcanoes in the world and has one of the largest calderas at around 120km in circumference.

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

Mount Rainier is an active stratovolcano 45 miles southeast of Tacoma and 60 miles south-southeast of Seattle. Its last ...

Hundreds of small earthquakes have rattled Mount Rainier this week in the largest swarm of tremors in more than a decade.

WASHINGTON (AP) — Scientists can’t know precisely when a volcano is about to erupt, but they can sometimes pick up telltale signs. That happened two years ago with the world’s largest active ...

Hawaii's Mauna Loa volcano is shorter than the world's tallest volcanoes by elevation, but it extends thousands of feet below sea level.

Marins’ family—and the whole world—watched anxiously as officials launched a multi-day attempt to retrieve her. But Marins’ ...

Learn about the largest active volcano on Earth Mauna Loa in Hawaii. Discover its massive size, eruption history, and fascinating facts about its role in shaping the Hawaiian Islands.

WASHINGTON — Scientists can't know precisely when a volcano is about to erupt, but they can sometimes pick up telltale signs. That happened two years ago with the world's largest active volcano ...