Volcano Watch

Understanding the eruptive history of volcanoes in Hawaii requires a tremendous amount of time and effort examining deposits. Typically, older...

It's been one year since Taʻū volcano in American Samoa started shaking residents of the Manuʻa Islands (Ofu-Olosega and Ta‘ū Islands). Fortunately...

Ocean swells are constantly occurring across the Earth’s oceans. These swells interact with the ocean crust below, creating continuous ocean noise...

Kīlauea’s activity from 2018 until now has been compared to cycles of summit collapse and refilling prior to 1924. However, Kīlauea also exhibited...

On August 1, 1823, an English missionary named William Ellis visited Kīlauea caldera with his Hawaiian guides on a tour of the Island of Hawaiʻi.  He...

The Center for the Study of Active Volcanoes (CSAV) is holding its annual summer International Training Course in Volcano Hazards Monitoring. This...

When lava poured out over the floor of Moku‘āweoweo, Mauna Loa’s summit caldera, late on the night of November 27, 2022, it was still many hours away...

The 2018 collapse of southern Kaluapele (Kīlauea caldera) left a pit whose lowest point was about 500 m (1640 ft) above sea level (asl). Since 2020...

When we think about the Earth's magnetic field, we often associate it with compasses and navigation. However, did you know that our planet's magnetic...

Kīlauea volcano began erupting within Halema‘uma‘u crater at the summit during the early morning of June 7. The eruption marks another in a series of...