1984 eruption of Mauna Loa

The 1984 eruption of Mauna Loa was a Hawaiian eruption in the U.S. state of Hawaii that lasted from March 25 to April 15, 1984. It ended a 9-year period of quiescence at the volcano and continued for 22 days, during which time lava flows and lava fountains issued from the summit caldera and fissures along the northeast and southwest rift zones. Although the lava threatened Hilo, the flow stopped before reaching the outskirts of town.

1984 eruption of Mauna Loa
Lava fountains and a'a channel flow during the 1984 eruption
VolcanoMauna Loa
Start dateMarch 25, 1984 (1984-03-25)[1]
Start time1:30 a.m. HST[2]
End dateApril 15, 1984 (1984-04-15)[1]
LocationHawaii, Hawaiian Islands
19°28′03″N 155°35′29″W
Map showing areas covered by ‘a‘ā lava flows during the 1984 eruption of Mauna Loa

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