The Hawaiian Volcano Observatory is part of the U.S. Geological Survey, the science agency of the U.S. Department of Interior. Our job is to obtain and share science-based information about the ...

Microscopic clues in volcanic ash reveal how magma breaks apart, heals, and sticks back together during explosive eruptions.

A new instrument type has discovered evidence of a volcanic process on the Moon that had only been seen on Earth. “Before the 1950’s, most scientists thought the craters on the Moon were from ...

Ethiopian volcano eruption: On Sunday, November 23, 2025, Ethiopia’s Hayli Gubbi volcano erupted for the first time in over 10,000 years, leaving scientists and locals stunned. The eruption sent ...

A giant mound near the Moon’s south pole appears to be a volcanic structure unlike any other found on the lunar surface, according to new research. The formation, known as Mafic Mound, stands about ...

The data reveal that Axial Seamount’s surface is swelling in a manner similar to what occurred before its last eruption in 2015, suggesting that magma is building up inside it and could trigger ...

Over millions of years, the Earth’s upper layers have performed a dance that has created mountains, volcanoes, continents, ridges and ocean trenches. Tectonic plates play a key role in this process.

Jakarta. Indonesia’s Geological Agency has ruled out a common geological process behind the simultaneous eruptions of six volcanoes on Aug. 31, saying the events were independent volcanic activity.

Latitudinally corrected 3-GHz TA shown at midnight local time. (a) These data show a clear localized antenna temperature (TA) enhancement of about 9 degrees Kelvin centered on the mapped ...