The largest active volcano on Earth by volume, a shield so broad its slopes are easy to mistake for ordinary terrain. It woke in late 2022 after 38 years of quiet, sending lava flows toward the saddle road across the island.
Erupted since 2000
Shield volcano · Basalt / Picro-Basalt
0 events in 90 days
Seismicity within 50 km radius, active VAAC ash plumes, and tectonic plate boundaries.
No catalogued earthquakes within 50 km in the last 90 days.
Mauna Loa is an active Shield volcano formed in an active Intraplate / Oceanic crust (< 15 km). Dominant lithology: Basalt / Picro-Basalt.
Official catalogue parameters, coordinates, elevation and geotectonic classification.
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Catalogue: Smithsonian Institution, Global Volcanism Program.Smithsonian GVP profile