News

In recent weeks, the USGS Hawaiian Volcano Observatory (HVO) has received a number of calls from local residents saying essentially: "Hey, is...

In 1880–1881, a lava flow from Mauna Loa came very close to entering Hilo Bay.

As the 2016 Volcano Awareness Month comes to an end, so too does our series of "Volcano Watch" articles exploring the geology of the Hawaiian Islands...

As part of Volcano Awareness Month, our January "Volcano Watch" articles are taking us on a geologic tour of the Hawaiian Islands. Today's stop: Maui...

January is Volcano Awareness Month, during which our "Volcano Watch" articles are exploring the geology of the Hawaiian Islands. The series continues...

Welcome to the 7th annual Volcano Awareness Month on the Island of Hawai‘i!

Geologic mapping is considered by some to be "old school" science. By current standards, there's certainly nothing glitzy or high tech about walking...

Panorama of the north rim of Mauna Loa's summit caldera; an HVO geologist checks Mauna Loa monitoring equipment.

Scientists at the U.S. Geological Survey Hawaiian Volcano Observatory have elevated the Volcano Alert Level for Mauna Loa from NORMAL to ADVISORY...

Mauna Loa earthquake and deformation data between 2010 and September 17, 2015.