Tsunamis in 1903

October 6, 1903 Tsunami: Hawaii, United States

October 6, 1903 · Erroneous entry

A tsunami of meteorological origin began at Hawaii, United States on October 6, 1903 at 06:30 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
October 6, 1903, 06:30 UTC
Source
Hawaii, United States
Cause
Meteorological
Runups recorded
1
Waters
Ocean
How certain
Erroneous entry

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.

As the English Ship Ormsery approached the western shore of Hawaii Island at 8:00 p.m., crewmen noticed whirling currents and "the sea to appear to churn as if might springs were acting under the water surface". The ship felt a shock like a tidal wave coming from the shore and was turned with the stern forward. The agitation continued until at least 6:00 a.m. on the 6th. The next day on October 6, the Mauna Loa volcano ejected a column of smoke and possibly a lava flow. The cause was probably a series of eddies generated in the wake of the Island of Hawaii by prevailing eastern currents. There are reports of choppy seas in the area at least through October 11.

The English ship "Ormsri" approaching the western shore of Hawaii Island noticed the temperature rose markedly. The ship felt a shock like a tidal wave coming from the shore and was turned with the stern forward. On October 6, the Mauna Loa volcano ejected a column of smoke; lava possibly issued. [As is correctly noted in the compendia compiled at Honolulu, this was apparently not a tsunami but a seaquake or convection currents] (Reference #415).

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
Hawaii Island, HI, HIUnited StatesEyewitness observation of water height

More

Every tsunami in 1903The 1900sTsunamis of United StatesThis 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 1301.