4050 BC Eruption of Masaya

Name: 4050 BC Eruption of Masaya
Location: Masaya, Nicaragua

4050 BC · VEI 6

Masaya in Nicaragua erupted in 4050 BC with a Volcanic Explosivity Index of 6.

Where it erupted

Masaya, Nicaragua.

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The eruption

Date: 4050 BC
Volcano: Masaya, caldera
Country: Nicaragua
Volcanic Explosivity Index: 6, paroxysmal (eruption column over 25 km)
Location: 11.984° N, 86.169° W

The toll

The record gives no deaths, injuries or damage for this eruption.

What the record says

NCEI’s account, from the sources it cites.

Major explosive eruption around 4050 BC.

Every eruption in 4050 BC The 4000s BC Masaya Earthquakes near Masaya

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 5237.