Summary: A shallow intrusion of magma occurred overnight within the summit region near the existing eruption location. North and south vent continue to have intermittent overflows, spatter, and strong ...

Summary: Mauna Loa earthquake counts decreased in September compared to August, and minor inflation continues. Mauna Loa had a decrease in seismic activity compared to the previous month; a total of ...

This reference map depicts the Kīlauea summit eruption within Halema‘uma‘u crater that began on December 23, 2024. Most of the data for this map were collected during a USGS Hawaiian Volcano ...

USGS has selected 16 recipients to be awarded grant funding to address landslide risk reduction science. The grants will help advance landslide research capabilities.

Alaska has a complex geologic history, and as a result, a rich tapestry of geologic hazards and endowed resources. The version 2 of the Cooperative National Geologic Map was able to bring that history ...

"Water dowsing" refers in general to the practice of using a forked stick, rod, pendulum, or similar device to locate underground water, minerals, or other hidden or lost substances, and has been a ...