HVO tracking changes at world’s largest volcano – Mauna Loa, Hawaii

HVO tracking changes at world’s largest volcano – Mauna Loa, Hawaii

Scientists at the USGS Hawaiian Volcano Observatory are tracking changes on the Mauna Loa, the world's largest volcano. This volcano is currently not erupting, but there have been signs of elevated unrest above known background activity since July 2019, when HVO…

Caldera collapse triggers large-scale volcanic eruptions

Caldera collapse triggers large-scale volcanic eruptions

Researchers at NASA’s Jet Propulsion Laboratory in Southern California identified what triggers large-scale volcanic eruptions and the conditions that lead to them. Using data from the 2018 Kilauea eruption in Hawaii– its largest volcanic eruption in over 200…

Elevated seismicity at Mauna Loa volcano, Hawaii

Elevated seismicity at Mauna Loa volcano, Hawaii

Seismic activity increased on Mauna Loa's northwest flank on December 4, 2020, with M4.1 earthquake and clusters of small, shallow earthquakes occurring closely in time and location. The volcano is not erupting but the rates of deformation and seismicity have…

Earthquake swarm under Lōʻihi volcano, Hawaii

Earthquake swarm under Lōʻihi volcano, Hawaii

The USGS Hawaii Volcano Observatory (HVO) reported increased seismic activity at the submarine Lōʻihi volcano in Hawaii from May 11 to 12, 2020. More than 100 earthquakes were detected, but USGS noted that there is no indication that a submarine eruption has…

Mauna Loa volcano Alert Level and Aviation Color Code raised, Hawaii

Mauna Loa volcano Alert Level and Aviation Color Code raised, Hawaii

Earthquake and ground deformation rates at Mauna Loa Volcano have exceeded long term background levels over the past several months, forcing the Hawaiian Volcano Observatory to raise the Alert Level to Advisory and the Aviation Color Code to Yellow. All communities…