News

Two magnitude-4.4 earthquakes rocked the Big Island this month. The first occurred on June 3 and was located 13 km (7.8 mi) east of Waimea at a depth...

If you ask volcanologists what the most dangerous part of their job is, they are likely to answer, "flying in helicopters."

Over the years HVO has attempted to maintain its scientific energy, enthusiasm, and insights by melding a permanent staff with a smaller cadre of...

Lava flows are one of the most common hazards produced by active volcanoes. Here in Hawai`i, they may endanger property but seldom endanger people's...

"Wekiu" is the Hawaiian word for top or summit. This name was given to Mauna Kea's tallest cinder cone, which reaches 13,796 feet in elevation and is...

May 18 marks the anniversary of the 1980 eruption of Mount St. Helens, which laid waste to over 520 square kilometers (200 square miles) of forest and...

The shaking was finally over. Lower Puna returned to normal following the calamitous episode of ground cracking and subsidence in April 1924. But it...

As we enter the month of May, we are remiss in not remembering that April was "Tsunami Awareness Month". April was chosen as "Tsunami Awareness Month"...

After an earthquake felt by residents of Hawai`i County, we at the U S Geological Survey's Hawaiian Volcano Observatory are often asked what the...

At 2:56 PM local time, the Hawaiian Volcano Observatory seismographic network recorded a moderate earthquake from the Ka‘ū district of the Island of...