Volcano Watch

May 3rd, 2023, marked the fifth anniversary of the start of Kīlauea’s historic 2018 eruption that resulted in extensive lava flows from the East Rift...

May 2023 marks the 99th anniversary of a sequence of explosive eruptions from Kīlauea's summit that occurred over 16 days from May 11–27, 1924. During...

Five years ago, volcanic activity at Kīlauea dramatically changed when magma intruded into the lower East Rift Zone (LERZ). What happened at Kīlauea...

The Hawaiian Volcano Observatory (HVO) was founded in 1912. Today, over 111 years later, HVO is one of five volcano observatories supported by the U.S...

The recent 2022 Mauna Loa eruption began just before midnight, at 11:21 p.m. on November 27.  The first caldera floor fissures were visible in webcams...

Where is magma stored beneath the surface of Kīlauea and how is it transported to the places where eruptions occur? Scientists have hypothesized the...

It’s official! Governor Green recently proclaimed that April is again Tsunami Awareness Month for the State of Hawaii. This is not to be confused with...

The 1980 Mount St. Helens eruption in Washington State illustrated the hazards and impacts of lateral (ground-hugging) volcanic blasts on natural...

Shiny and elusive, featherlight and golden-brown. If poets were to write about rocks, I’m sure they would sing their praises of Pele’s hairs. Don’t be...

Scientists from the USGS Hawaiian Volcano Observatory (HVO) are collaborating with academic colleagues to make field experiences in geology more...