Tsunamis in 1800

June 2, 1800 Tsunami: Azores, Portugal

June 2, 1800 · Questionable tsunami

A tsunami caused by an earthquake began at Azores, Portugal on June 2, 1800 at 20:17 UTC. Its effects were recorded at 1 place.

Where the waves reached

The source (white) and every runup with a place, colored by the water height recorded there. A ring is a runup NCEI marks doubtful.

  • Under 1 m
  • 1 to 3 m
  • 3 to 10 m
  • 10 to 30 m
  • 30 m and more
  • Height not recorded

Tsunami warnings in force

The tsunami

Date
June 2, 1800, 20:17 UTC
Source
Azores, Portugal
Cause
Earthquake
Runups recorded
1
Waters
Ocean
How certain
Questionable tsunami

The toll

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

What the record says

NCEI’s account, from the sources it cites.

3 sea waves at Terceira

Every runup

Nearest the source first. Heights are above sea level at the time; a tide gauge reads half the wave’s full height.

WhereCountryKm from sourceWater height, mInland, mMeasured byFirst wave, UTCDeaths
Apia, Upolu IslandSamoaTide gauge (half the maximum wave height)

More

Every tsunami in 1800The 1800sTsunamis of PortugalThis day in weather historyAlerts in force

Sources

Tsunami events and runups 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. NCEI tsunami event 4268.