News

Lava flows, Pu‘u Pohaku‘ohanalei cone, Moku‘āweoweo's North Pit, Sulphur Cone area, and a video of Mauna Loa's summit caldera.

Scientists at the USGS Hawaiian Volcano Observatory routinely collect lava samples from Kīlauea and use the chemistry of these samples to infer the...

What exactly do volcano threat rankings mean?

Using detailed geologic mapping and modeling of how a fluid (in this case, lava) responds to surface topography, USGS-HVO constructed nine maps...

The U.S. Geological Survey has produced a documentary, "Kīlauea Summit Eruption–Lava Returns to Halema‘uma‘u," to tell the story of the eruption, and...

As the summer months began to wind down this year, Nature's fury began to wind up and grab much of the news cycle.

In today's age of aerial photography, satellites, and drones, bird's-eye views of geologic features are taken for granted. A century ago, such...

Thirty-seven years after the May 18, 1980, eruption of Mount St. Helens, Washington, scientists, engineers, land managers, and Federal, State, and...

This mosaic of thermal images is basically a thermal map of the lava flow surface, and reveals the exact location of all the active surface breakouts.

What's up with Mauna Loa, and is any change in sight?