#1868 eruption
Volcano Watch: A collapse at Mauna Loa’s summit in 1868, like Kīlauea’s in 2018?
There seems to be enough evidence of some sort of collapse happening, which remains the only such event in the volcano’s documented history, simultaneously with a dramatic eruption that caused Hawai’i’s largest ever recorded earthquake, a magnitude-7.9 temblor that resulted in a tsunami and landslide in Ka’u that killed more than 100 people and lava flows that inundated 9 square miles.
