A strong earthquake registered by the USGS as M5.7 (downgraded from M6.3) hit the southeastern flank of Mauna Loa volcano in Hawaii at 20:33 UTC on February 9, 2024. The agency is reporting a depth of 36.8 km (22.8 miles).
The eruption at Mauna Loa that started on November 28, 2022, ended on December 13. This was the first eruption at the world’s largest active volcano since 1984 (VEI 0).
The eruption of Mauna Loa volcano that started on November 28, 2022, in its Northeast Rift Zone continues, with several fissures and lava flows active.
Mauna Loa started erupting at around 09:30 UTC on November 28, 2022 (23:30 LT on November 27) in Moku‘āweoweo, the summit caldera of Mauna Loa, inside Hawai‘i Volcanoes National Park. Mauna Loa is the largest active volcano on our planet. Its last eruption took place in 1984 (VEI 0).
A new eruption has begun at Mauna Loa — the largest active volcano on our planet — on November 28, 2022. As a result, the Aviation Color Code was raised to Red. The last eruption at this volcano took place in 1984 (VEI 0).
Heightened unrest continues under Mauna Loa, with two moderately strong earthquakes within 24 seconds on October 14, 2022, and a string of aftershocks that are still taking place. The unrest is likely caused by renewed input of magma into Mauna Loa’s summit reservoir system. The Alert Level remains at Advisory and the Aviation Color Code at Yellow.
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.
Scientists from the University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science have shed light on the hazards of Hawaii's Mauna Loa, the largest active volcano on Earth, finding that a large earthquake could set off an eruption. The team…
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…
While the largest volcano on Earth — Mauna Loa is not erupting, rates of deformation and seismicity at the summit remain slightly elevated and above long-term background levels. Other Mauna Loa monitoring data streams show no significant change in deformation rates…
