News

“When will Mauna Loa erupt next?” This was the title of a Volcano Awareness Month video presentation released by the USGS Hawaiian Volcano Observatory...

In this talk, USGS Hawaiian Volcano Observatory geologist Frank Trusdell, who has studied Mauna Loa for two decades, presents a roughly 40-minute talk...

The USGS Hawaiian Volcano Observatory (HVO) is announcing a revised Volcano Awareness Month schedule of recorded programs.  Programs, which are...

December 29, 2020, sunrise on Mauna Loa

Though there hasn’t been an eruption in Hawai‘i in 2020, the year has hardly been quiet—earthquake swarms, an elevated alert-level on Mauna Loa, and a...

Magnitude-4.1 earthquake on Mauna Loa’s northwest flank, Island of Hawai‘i

The U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) recorded a...

Kīlauea Volcano is not erupting. A small swarm of shallow seismicity over the past 24 hours has occurred near the Ka‘ōiki fault system, northwest of...

One of the fundamental premises of geology is that the "key to understanding the future is to understand the past."  In order to forecast how a...

Over the past two decades, the USGS Hawaiian Volcano Observatory (HVO) has set up a camera network system to monitor visual changes at Kīlauea and...