April 27, 1928 Tsunami: S. Peru
A tsunami caused by a magnitude 6.8 earthquake began at S. Peru on April 27, 1928 at 20:34:58 UTC.
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 27, 1928, 20:34:58 UTC
- Source
- S. Peru
- Cause
- Earthquake
- Earthquake
- Magnitude 6.8
- Runups recorded
- 0
- Waters
- A lake or river, not the ocean
- How certain
- Questionable tsunami
- Source location
- 13.000° S, 69.500° W
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.
The earthquake on April 9, 1928 or aftershock on April 27, 1928, caused talus slides into the Esquilaya river which formed a natural dam that later broke. Two were dead and eight missing as a result of the slides.
April 9, 1928, 12:30. There was a destructive earthquake in south-east Peru with a source under the eastern slopes of the Andes. The strongest recurrent shock was on April 27 at 15:34. In some papers; it is apparently mistakenly indicated that in the region of Arequipa "considerable damage was done on the coast by the frequent tidal waves which followed this series of destructive shocks." Gutenberg, Richter (1954): April 9; 17h34m15s; 13 S., 69.5 W.; M=6.9. April 27; 20h34m58s; 13 S., 69.5 " W.; M=6.75. Listed as questionable tsunami. (reference #415)
April 27, 1928, 20:35 UTC, 13 S, 69.5 W, magnitude 6.7. (reference #164)
April 27, 1928, 20:35 UTC, 13 S, 69.5 W, magnitude 6.75. Coast scourged by high seas. No mareographic confirmation is known from near or distant stations. Quake was far inland. Probably storm waves. (reference #79)
Reference #12345 lists as validity 2 (questionable). (accessed August 2024)
More
Every tsunami in 1928The 1900sTsunamis of PeruThe earthquakeThis 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 1599.