April 20, 1868 Tsunami: Hawaii, United States
A tsunami of unknown cause began at Hawaii, United States on April 20, 1868.
Where the waves reached
The source of the tsunami. No runup with a place is recorded for it.
- Under 1 m
- 1 to 3 m
- 3 to 10 m
- 10 to 30 m
- 30 m and more
- Height not recorded
The tsunami
- Date
- April 20, 1868
- Source
- Hawaii, United States
- Cause
- Unknown
- Runups recorded
- 0
- 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.
Erroneous date for April 2 (Local Time), 1868, tsunami. Other erroneous dates are April 4, 10, 20, 1868.
More
Every tsunami in 1868The 1800sTsunamis 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 974.