Historical tsunamis · Jun 16, 2021, 4:43 AM UTC
2021 Banda Sea tsunami
Indonesia
The tsunami of Jun 16, 2021, 4:43 AM UTC originated near Banda Sea (Indonesia).
Key facts
- Date
- Jun 16, 2021, 4:43 AM UTC
- Cause
- Earthquake and landslide
- Magnitude
- M5.8
- Depth
- 10 km
- Maximum documented water height
- 1.50 m
- Damage
- limited (under US$ 1 million)
- Observation records
- 6
- Countries affected
- 1
It was triggered by a magnitude 5.8 earthquake at a depth of 10 km.
The highest documented water height was 1.50 m (Tehoru Coast, Indonesia).
6 observation sites in 1 countries are recorded.
Damage is estimated at limited (under US$ 1 million).
Map of observation sites
6Each dot is a documented observation site; colour and size show the observed water height. The triangle marks the source.
Tsunami arrival times
Documented arrival times from the NOAA/NCEI database, showing the earliest recorded location per country. Coverage is incomplete: a country without an entry was not necessarily spared.
- 0:00 hEarthquake (origin) · Jun 16, 2021, 4:43 AM UTC
- 0:02 hIndonesia · Tehoru · 0.70 m
4 places with a documented arrival time
Observations by country
| Country | Observation records | Maximum documented water height | Deaths | Earliest arrival |
|---|---|---|---|---|
| Indonesia | 6 | 1.50 m Tehoru Coast | — | 0:02 h |
Highest documented water heights
6 / 6Individual 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 |
|---|---|---|---|
| Tehoru Coast · Maluku | 1.50 m | 24 km | Indonesia |
| Tehoru · Maluku | 0.70 m | 24 km | Indonesia |
| Mahu Coast · Maluku | 0.50 m | 29 km | Indonesia |
| Banda · Maluku | 0.05 m | 112 km | Indonesia |
| Amahai · Maluku | 0.02 m | 70 km | Indonesia |
| Saunulu Coast · Maluku | — | 32 km | Indonesia |
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.