Semeru

September 21, 1941 Eruption of Semeru

September 21, 1941 · VEI 2

Semeru in Indonesia erupted on September 21, 1941 with a Volcanic Explosivity Index of 2.

Where it erupted

Semeru, Indonesia, with its other significant eruptions.

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The eruption

Date
September 21, 1941
Volcano
Semeru, stratovolcano
Country
Indonesia
Volcanic Explosivity Index
2, moderate (eruption column 1 to 5 km)
Location
8.108° S, 112.922° E

The toll

Damage
Limited (under about $1 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.

Radial fissure eruption,

Explosive eruption,

Lava flow(s),

Damage (land, property, etc.). (reference #2432)

Other significant eruptions of Semeru

More

Every eruption in 1941The 1900sSemeruEarthquakes near SemeruThis day in weather history

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 196.