1800 Eruption of Kyejo

Name: 1800 Eruption of Kyejo
Start: 1800
Location: Kyejo, Tanzania

1800 · VEI 2 · Deaths: many

Kyejo in Tanzania erupted in 1800 with a Volcanic Explosivity Index of 2.

Where it erupted

Kyejo, Tanzania, with its other significant eruptions.

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The eruption

Date: 1800
Volcano: Kyejo, stratovolcano
Country: Tanzania
Volcanic Explosivity Index: 2, moderate (eruption column 1 to 5 km)
Killed by: Lava flows
Location: 9.229° S, 33.792° E

The toll

Deaths: Many (about 101 to 1,000)
Damage: Severe (about $5 to $25 million)

Where the literature gives no number, NCEI records a description on a scale of 1 to 4, printed here in its words. Damage is in millions of US dollars of the year of the event, not adjusted for inflation.

What the record says

NCEI’s account, from the sources it cites.

Oral history records an eruption about 1800 AD in which lava engulfed villages whose inhabitants were still asleep. (reference #9675)

Every eruption in 1800 The 1800s Kyejo Earthquakes near Kyejo

Sources

Volcanoes and significant eruptions from NOAA’s National Centers for Environmental Information, Global Historical Hazard Database, cited as NCEI/WDS, doi:10.7289/V5PN93H7. Public domain. Read 2026-09-24. Volcano numbers are the Smithsonian Institution’s Global Volcanism Program’s. NCEI event 1355.