Roughly three-quarters of all volcanic eruptions on Earth happen deep underwater, far from any camera, seismograph network, ...

Costa Rica’s National Emergency Commission declared a green alert for Poás Volcano National Park after a recent increase in eruptive activity, while clarifying that the measure does not close the park ...

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During lava fountaining episodes, strong volcanic tremor — a signal associated with fluid movement — is recorded on seismic ...

A volcano that erupted after being asleep for more than 100,000 years is leading more volcanologists to say we must redefine ...

Airlines flying North Pacific routes between Asia and North America are still contending with a volcanic hazard in Alaska’s ...

One of the most active volcanoes in the world is living up to its reputation as it gears up for another eruption. An eruption at Hawaii's Kilauea volcano is imminent, based on current activity, ...

Hawaii News » Volcano Watch: How tiltmeters monitor volcano activity Saturday, November 02, 2024 12:05 am This photo shows releveling maintenance being conducted on an analog tiltmeter located near ...

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 ...