Historical tsunamis · Apr 2, 1762
1762 Northern Bay of Bengal tsunami
Bangladesh
The tsunami of Apr 2, 1762 originated near Northern Bay of Bengal (Bangladesh).
Key facts
- Date
- Apr 2, 1762
- Cause
- Earthquake
- Maximum documented water height
- 1.83 m
- Deaths
- many (about 101–1,000)
- Damage
- severe (about US$ 5–25 million)
- Observation records
- 4
- Countries affected
- 3
Cause according to NOAA/NCEI: Earthquake.
The highest documented water height was 1.83 m (Calcutta, India).
4 observation sites in 3 countries are recorded.
The database records many (about 101–1,000) deaths.
Damage is estimated at severe (about US$ 5–25 million).
Map of observation sites
4Each 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 |
|---|---|---|---|---|
| Bangladesh | 2 | 1.83 m Dhaka | — | — |
 India | 1 | 1.83 m Calcutta | — | — |
 Myanmar (Burma) | 1 | — | — | — |
Highest documented water heights
4 / 4Individual 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 |
|---|---|---|---|
| Calcutta · West Bengal | 1.83 m | 382 km | India |
| Dhaka | 1.83 m | 250 km | Bangladesh |
| Baharchhara | 1.30 m | 113 km | Bangladesh |
| Cheduba Island | — | 395 km | Myanmar (Burma) |
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.