What the records say
- When
- Nov 1790
- Kind
- Volcanic eruption
- Where
- United States
- Coordinates
- 19.42° N, 155.29° W
- Vei
- 4
- Deaths
- 5405
- Volcano type
- Shield volcano
Keanakakoi eruption
1790 volcanic eruption
The Keanakakoi eruption was a VEI-4 eruption that occurred from the summit caldera of Kīlauea volcano in or around November 1790. 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. The eruption deposited the Keanakakoi Ash which surrounds the Kīlauea Caldera.
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2 sources record it
- NCEI significant earthquakes, tsunamis and volcanic eruptionsNOAA National Centers for Environmental InformationPublic domainSource page
- Smithsonian GVP Volcanoes of the World: Holocene eruptionsGlobal Volcanism Program, Smithsonian InstitutionSmithsonian terms of use: personal, educational and non-commercial use, with creditGlobal Volcanism Program, Smithsonian Institution: Volcanoes of the World v5.3, https://doi.org/10.5479/si.GVP.VOTW5-2025.5.3Source page
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