October 25, 1981 Tsunami: Mexico
A tsunami caused by a magnitude 7.3 earthquake began at Mexico on October 25, 1981 at 03:22:15 UTC. The water rose as high as 0.09 meters. Its effects were recorded at 1 place. It killed 3 people, counting the earthquake or eruption that caused it.
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
The tsunami
- Date
- October 25, 1981, 03:22:15 UTC
- Source
- Mexico
- Cause
- Earthquake
- Earthquake
- Magnitude 7.3, 28 km deep
- Maximum water height
- 0.09 m (0.3 ft)
- Runups recorded
- 1
- Waters
- Ocean
- How certain
- Definite tsunami
- Source location
- 18.084° N, 102.084° W
The toll
- Deaths
- 3 with the earthquake or eruption that caused it
- Injuries
- 28 with the earthquake or eruption that caused it
- Damage
- Moderate (about $1 to $5 million) with the earthquake or eruption that caused it
- Houses damaged
- Some (about 51 to 100) with the earthquake or eruption that caused it
Where the literature gives no number, NCEI records a description on a scale of 1 to 4, printed here in its words. Damage is in millions of US dollars of the year of the event, not adjusted for inflation.
What the record says
NCEI’s account, from the sources it cites.
The earthquake of magnitude Ms=7.3 occurred in the central part of the Michoacan gap (17.75"N. 102.25'W), near Playa Azul and Lazaro Cardenas, Mich. At Mexico City some buildings were damaged. Thousand of people were trapped in the "Metro" subway. Three people died, and 28 were injured. The tidal gauge station of Acapulco registered evidence of a small tsunami with a maximum height of 0.09 m (Fig. 65 in the Appendix I). (reference #369)
Every runup
Nearest the source first. Heights are above sea level at the time; a tide gauge reads half the wave’s full height.
| Where | Country | Km from source | Water height, m | Inland, m | Measured by | First wave, UTC | Deaths |
|---|---|---|---|---|---|---|---|
| Acapulco | Mexico | 270 | 0.09 | Tide gauge (half the maximum wave height) |
More
Every tsunami in 1981The 1900sTsunamis of MexicoThe 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 2132.