News

"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...

Boaters, hikers, pilots, and other outdoor enthusiasts can use hand-held Global Positioning System (GPS) receivers to locate themselves or to navigate...

An ancient Japanese proverb says that the most recent disaster fades from memory just before the next one strikes. Recently our friend Garret Hew of...

It started innocently enough. The long-lived lava lake disappeared from Halema`uma`u on February 21. Seventy-eight earthquakes were recorded in March...

Earth scientists know a lot about Mauna Loa above sea level but much less about it under water. Studies have naturally focused on the easily...