News

Ta‘ū volcano in American Samoa experienced volcanic unrest in the form of an earthquake swarm that was felt throughout the Manuʻa Islands (Ofu-Olosega...

Satellites have become one of the fundamental tools used to monitor active volcanoes. One of the most revolutionary advances has been the use of InSAR...

After damaging earthquakes, response and recovery takes place under the threat of aftershocks. USGS aftershock forecasts can help you understand what...

The ongoing summit eruption at Kīlauea volcano turned 1 year old on September 29, 2022. The past year’s activity has commonly been described as...

Feeling occasional earthquakes is part of the experience of living in the State of Hawaii, especially on the Island of Hawai‘i.  The vast majority of...

The last eruption of Mauna Loa occurred in 1984 and began in a style typical of the volcano. At 10:55 p.m. on March 24, 1984, the rate of earthquakes...

Crater filling at Kīlauea is sometimes like pouring liquid into a mug, but more often it is like injecting haupia crème into a crispy malasada.

When lava flows break out on the flanks of Kīlauea or Mauna Loa, Hawaiʻi residents and emergency management agencies want to know what to expect...

In the last few months, "Volcano Watch" articles have introduced several research projects funded by the Additional Supplemental Disaster Relief Act...

The USGS Hawaiian Volcano Observatory (HVO) has recently completed the purchase, installation, and calibration of a new physical volcanology...