News

The Island of Hawai‘i is one of the most seismically active regions in the world. In the last five years, an average of 600-1200 earthquakes per week...

The 2022 eruption of Mauna Loa occurred late in the evening of November 27th. The eruption was preceded by intense earthquake activity about half an...

The USGS Hawaiian Volcano Observatory announces a new webcam that provides views of the Southwest Rift Zone of Mauna Loa

Several newly published USGS data releases provide data on timelapse camera and webcam images of the fissure 8 during the 2018 lower East Rift Zone...

In the late hours of November 27, 2022, Mauna Loa began erupting. Lava was visible on the west side of the Island of Hawaiʻi, from Kailua-Kona to...

Several newly published USGS data releases provide data on Kīlauea thermal maps during the 2018 lower East Rift Zone eruption, tiltmeter data from...

Updates to HVO website organization have moved Kīlauea and Mauna Loa monitoring pages to "Science" content.

Unrest continues at Kīlauea volcano and a new map summarizes activity over the past month.

For months, USGS monitoring had shown that Mauna Loa was inching close to an eruption. Just before midnight on Sunday, November 27, 2022, the wait was...

It’s hard to believe that nearly one year has passed since Mauna Loa erupted. Mauna Loa has been mostly quiet since the end of the 2022 eruption, but...