Seismic activity beneath Mauna Loa increasing, Hawai’i

Seismic activity beneath Mauna Loa increasing, Hawai’i

Seismic activity beneath the Mauna Loa volcano has been gradually increasing over the past 2 months. In addition, a small seismic swarm started on September 23, with most earthquakes in a cluster about 5 km (3.1 miles) wide and -2 to 1 km (-1.2 to 0.6 miles) below the surface. The Aviation Color Code is at Yellow and the Volcano Alert Level at Advisory.

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…