A national park in Hawaii has reopened after being closed for more than four months because of Kilauea volcano's latest eruption, which caused widespread damage to park infrastructure and dramatically changed its landscape.
The University of Bristol is pioneering the monitoring of volcanic activity by developing a cutting-edge measurement system that can withstand the harsh conditions around the heart of an active volcano.
A major 7.8 magnitude quake struck off the Fiji coast early Friday, the United States Geological Survey said, but no tsunami threat was issued.
Production wells at a geothermal plant under threat by lava flowing from Hawaii's Kilauea volcano have been plugged to prevent toxic gases from seeping out.
Hawaii's Kilauea volcano erupted anew before dawn Thursday, spewing a steely gray plume of ash about 30,000 feet (9,100 meters) into the sky that began raining down on a nearby town.
Indonesia's most active volcano, Mount Merapi, erupted early Friday, spewing sand and pyroclastic material and sending an ash column as high as 5,500 meters (18,045 feet) into the sky.
Volcanic activity from Hawaii's Kilauea volcano paused on Tuesday, authorities said, while warning that more outbreaks should be anticipated.
Researchers got a rare opportunity to study an underwater volcano in the Caribbean when it erupted while they were surveying the area.
Powerful eruptions at a volcano in southern Japan spewed ash thousands of metres into the air Wednesday, as authorities warned locals not to approach the mountain.