[1][2] It has been described as the deadliest volcanic eruption in what is now the United States, with more than 400 people having been killed in the event.

[2][3] The eruption deposited the Keanakakoi Ash which surrounds the Kīlauea Caldera.

The first phase was phreatomagmatic, and involved the deposition of fine-grained, well-bedded volcanic ash.

The third and final phase was phreatic and produced interbedded pyroclastic fallout and surge deposits.

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