News

As people from around the world are captivated by episodic lava fountaining during the ongoing Kīlauea eruption in Halemaʻumaʻu, let’s use the current...

When magma moves into the rift zone of a Hawaiian volcano, there is understandably a lot of excitement and apprehension.  How far will the magma go...

Mauna Loa summit webcams have been down for several months due to wind damage at the radio telemetry site. On November 7, 2024, HVO staff visited the...

Geologic mapping has been one of the most fundamental mandates of the U.S. Geological Survey (USGS) since its establishment in 1879. Congress created...

In this third edition of "Eruptions of Hawaiian Volcanoes—Past, Present, and Future," we include information about Kīlauea’s 2018 eruption in the...

The 2022 eruption of Mauna Loa volcano, Island of Hawaiʻi, was the first eruption on the volcano since 1984, producing a 17 km lava flow that...

Photography has been a crucial part of volcano monitoring in Hawaii going back to the start of the USGS Hawaiian Volcano Observatory (HVO). In 1911...

In the late evening of November 27, 2022, an effusive eruption began inside Moku'aweoweo caldera at the summit of Mauna Loa volcano. The eruption, the...

Last month, the Hawaiʻi County Civil Defense Agency, Hawaiʻi Volcanoes National Park, and the U.S. Geological Survey (USGS) Hawaiian Volcano...

On August 2,2024, Hawaiian Volcano Observatory gas scientists flew via helicopter to the Sulfur Cone Multi-Gas instrumentation site on Mauna Loa's...