August 22, 2025 Tsunami: Drake Passage, Antarctica
A tsunami caused by a magnitude 7.5 earthquake began at Drake Passage, Antarctica on August 22, 2025 at 02:16:19 UTC. The water rose as high as 0.17 meters. Its effects were recorded at 5 places in at least 2 countries.
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
- August 22, 2025, 02:16:19 UTC
- Source
- Drake Passage, Antarctica
- Cause
- Earthquake
- Earthquake
- Magnitude 7.5, 10 km deep
- Maximum water height
- 0.17 m (0.6 ft)
- Runups recorded
- 5
- Warning
- Regional Tsunami Warning issued by PTWC for areas without a warning system
- Waters
- Ocean
- How certain
- Definite tsunami
- Source location
- 60.186° S, 61.821° W
The toll
The record gives no deaths, injuries or damage for this tsunami.
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 |
|---|---|---|---|---|---|---|---|
| Prat Base (Chile) | Antarctica | 280 | 0.08 | Tide gauge (half the maximum wave height) | |||
| O'Higgins Base (Chile), Palmer Pen. | Antarctica | 406 | 0.05 | Tide gauge (half the maximum wave height) | day 22, 03:35 | ||
| Vernadsky Faraday, Argentine Isl | Antarctica | 578 | Tide gauge (half the maximum wave height) | ||||
| Port Stanley, Falkland Islands | UK Territories | 970 | 0.17 | Tide gauge (half the maximum wave height) | day 22, 08:32 | ||
| King Edward Is, South Georgia Is | UK Territories | 1,651 | 0.06 | Tide gauge (half the maximum wave height) | day 22, 06:07 |
More
Every tsunami in 2025The 2000sTsunamis of AntarcticaThe 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 6047.