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2018 lower East Rift Zone Eruption and Summit Collapse

From Neal and others (2019): "Kīlauea Volcano experienced its largest lower East Rift Zone (LERZ) eruption and caldera collapse in at least 200 years. After collapse of the Pu‘u ‘Ō‘ō vent on 30 April, magma propagated downrift. Eruptive fissures opened in the LERZ on 3 May, eventually extending ~6.8 kilometers (4 miles). A 4 May earthquake [moment magnitude (Mw) 6.9] produced ~5 meters (16 feet) of fault slip. Lava erupted at rates exceeding 100 cubic meters (131 cubic yards) per second, eventually covering 35.5 square kilometers (14 square miles). The summit magma system partially drained, producing minor explosions and near-daily collapses releasing energy equivalent to Mw 4.7 to 5.4 earthquakes. Activity declined rapidly on 4 August. Summit collapse and lava flow volume estimates are roughly equivalent—about 0.8 cubic kilometers (0.2 cubic miles). Careful historical observation and monitoring of Kīlauea enabled successful forecasting of hazardous events."

Resources Relating to Kīlauea's 2018 Activity

Kīlauea 2018 Eruption Data

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