Geologic mapping has been one of the most fundamental mandates of the U.S. Geological Survey (USGS) since its establishment in 1879. Congress created the USGS to “classify the public lands and examine ...

The production of maps to track the progress of ongoing eruptions has long been part of the USGS Hawaiian Volcano Observatory mission to inform the public about volcanic hazards in Hawaii. The methods ...

Hawaii's Kilauea volcano, one of the most active in the world, is erupting again, prompting a volcano watch alert in surrounding areas, according to officials. The eruption is occurring within a ...

A magnitude-3.9 earthquake rattled the Big Island, striking from nearly 20 miles below sea level the night of Oct. 2 in Kaʻū.

Hawaii's Kilauea volcano is erupting again in spectacular fashion, sending lava shooting 1,000 feet into the sky, according to the United States Geological Survey. On Friday morning, "Episode 26" of ...