This type of quake produces relatively high-frequency shaking, usually between one and five cycles per second. An increase in VT activity is often an early sign that a volcano is becoming active.

Sudden changes in pressure within magma-filled cracks and channels cause long-period (LP) events. LP events are volcano-related earthquakes that are lower in frequency than volcano-tectonic (VT ...

Estimates of carbon dioxide (CO2) emissions from volcanoes may have been significantly underestimated, according to new ...

Hawaii’s Kilauea volcano once again captivated onlookers with a stunning display of nature’s power as it spewed lava fountains reaching up to 1,000 feet during its latest eruptive cycle. This ...

When volcanic eruptions make headlines, the images often depict fiery lava and towering ash clouds. But beneath Antarctica’s ...

A volcano is an opening in the Earth’s crust that allows magma, hot ash and gases to escape. The water cycle works by using the energy of the Sun to exchange water from oceans and lakes to the ...

Hawaii’s Kilauea volcano erupted again Monday night, launching lava up to 1,000 feet as scientists monitored its 17th episode since December from Hawaii Volcanoes National Park.