Historical tsunamis · Jan 23, 2021, 11:36 PM UTC
2021 Scotia Sea tsunami
Antarctica
The tsunami of Jan 23, 2021, 11:36 PM UTC originated near Scotia Sea (Antarctica).
Key facts
- Date
- Jan 23, 2021, 11:36 PM UTC
- Cause
- Earthquake
- Magnitude
- M6.9
- Depth
- 10 km
- Maximum documented water height
- 0.04 m
- Observation records
- 2
- Countries affected
- 1
It was triggered by a magnitude 6.9 earthquake at a depth of 10 km.
The highest documented water height was 0.04 m (O'higgins Base (Chile), Palmer Pen., Antarctica).
2 observation sites in 1 countries are recorded.
Map of observation sites
2Each dot is a documented observation site; colour and size show the observed water height. The triangle marks the source.
Observations by country
| Country | Observation records | Maximum documented water height | Deaths | Earliest arrival |
|---|---|---|---|---|
| Antarctica | 2 | 0.04 m O'higgins Base (Chile), Palmer Pen. | — | — |
Highest documented water heights
2 / 2Individual documented observations for this event. Heights come from different measurement types and sources; not every location has a measured height.
| Location / station | Observed height | Distance from source | Country |
|---|---|---|---|
| O'higgins Base (Chile), Palmer Pen. | 0.04 m | 208 km | Antarctica |
| Prat Base (Chile) | 0.04 m | 229 km | Antarctica |
More tsunamis
Source: NOAA National Centers for Environmental Information (NCEI), Global Historical Tsunami Database. Confirmed events only. Deaths and damage are database estimates; older records are incomplete. Water heights come from different types of observation.