News

An eruption at Kīlauea's summit began at approximately 3:20 p.m. HST on September 29, 2021. Lava activity is confined within Halema‘uma‘u crater, in...

On July 28, the USGS-Hawaiian Volcano Observatory flew the Airborne Electromagnetic and Magnetic (AEM) survey over Kaluapele—Kīlauea summit caldera. 

While our attention is generally drawn to the Island of Hawai‘i’s most active volcanoes, Kīlauea and Mauna Loa, it is also important to keep watch on...

On Tuesday, July 26, at 5:46 p.m. HST, a magnitude-4.3 earthquake occurred 6 miles (9 km) ENE of Pāhala, Island of Hawaiʻi at a depth of 21 mi (34 km)...

Frank A. Trusdell, a research geologist at the U.S. Geological Survey's Hawaiian Volcano Observatory (HVO), recently received a Meritorious Service...

The Hawaiian Volcano Observatory conducted a geology monitoring overflight of Kīlauea summit on July 19, 2022.

An eruption at Kīlauea's summit began at approximately 3:20 p.m. HST on September 29, 2021. Lava activity is confined within Halema‘uma‘u crater, in...

What makes a volcano a volcano? This was the topic of a “Volcano Watch” article about 20 years ago. Recent questions from visitors suggest this...

Hawaiian Volcano Observatory Special Reports published in 1912, 1917, 1938, 1949, and 1950 have been added to the USGS Publications Warehouse and made...