Geologic mapping has been one of the most fundamental mandates of the U.S. Geological Survey (USGS) since its establishment ...

The world's biggest active volcano spans approximately 2,000 square miles and ascends about 13,600 feet above sea level - and ...

Kamaʻehuakanaloa volcano (formerly Lōʻihi Seamount), offshore to the southeast of the Island of Hawaiʻi, entered a period of ...

The U.S. Geological Survey's Hawaiian Volcano Observatory warned after 2 a.m. HST of the potential for volcanic ash to shoot into the atmosphere, which can damage planes. About six hours later ...

The U.S. Geological Survey says it has detected an increase seismic activity around Kamaʻehuakanaloa. The underwater volcano ...

Tiltmeters are a crucial component of the volcanic monitoring network in Hawaii. By detecting subtle changes in ground ...

Kilauea, one of the most active volcanoes in the world, began erupting early Monday in an area that last erupted a half-century ago, the U.S. Geological Survey’s Hawaiian Volcano Observatory said.

U.S. Geological Survey’s Hawaiian Volcano Observatory said. Eruptive activity increased early Tuesday but there is no immediate threat to homes or infrastructure, the observatory said.

This image provided by the USGS Hawaiian Volcano Observatory shows a view from a research camera on ... [+] the north rim of the summit caldera of the Mauna Loa volcano, Monday, Nov. 28 ...

The recent eruption at Nāpau Crater was the first on Kīlauea’s middle East Rift Zone (ERZ) in six years. We often remember the Pu‘u‘ō‘ō and Maunaulu eruptions when thinking about the middle East Rift ...