Historical tsunamis · Apr 2, 2024, 11:58 PM UTC
2024 E. Taiwan-Ryukyu Islands tsunami
Taiwan
The tsunami of Apr 2, 2024, 11:58 PM UTC originated near E. Taiwan-Ryukyu Islands (Taiwan).
Key facts
- Date
- Apr 2, 2024, 11:58 PM UTC
- Cause
- Earthquake
- Magnitude
- M7.4
- Depth
- 40 km
- Maximum documented water height
- 1.00 m
- Deaths
- 18
- Injuries
- 1,155
- Houses destroyed
- 111
- Damage
- US$ 2,500 million
- Observation records
- 12
- Countries affected
- 2
It was triggered by a magnitude 7.4 earthquake at a depth of 40 km.
The highest documented water height was 1.00 m (Hualien, Taiwan).
12 observation sites in 2 countries are recorded.
Outside the source country, the earliest documented arrival was at Yonaguni (Japan) after 0:16 h.
The database records 18 deaths.
Houses destroyed: 111.
Damage is estimated at US$ 2,500 million.
Map of observation sites
12Each 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) · Apr 2, 2024, 11:58 PM UTC
- 0:16 hJapan · Yonaguni · 0.27 m
3 places with a documented arrival time
Observations by country
| Country | Observation records | Maximum documented water height | Deaths | Earliest arrival |
|---|---|---|---|---|
| Taiwan | 9 | 1.00 m Hualien | — | — |
 Japan | 3 | 0.27 m Yonaguni | — | 0:16 h |
Highest documented water heights
12 / 12Individual 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 |
|---|---|---|---|
| Hualien | 1.00 m | 15 km | Taiwan |
| Wushi | 0.82 m | 117 km | Taiwan |
| Chenggong | 0.45 m | 84 km | Taiwan |
| Su-Ao, Yilan | 0.43 m | 88 km | Taiwan |
| Taichung | 0.27 m | 120 km | Taiwan |
| Yonaguni · Okinawa | 0.27 m | 153 km | Japan |
| Linshanbi | 0.26 m | 160 km | Taiwan |
| Hirara, Miyakojima Island · Okinawa | 0.25 m | 389 km | Japan |
| Dongshi, Chiayi | 0.21 m | 155 km | Taiwan |
| Longdong | 0.21 m | 144 km | Taiwan |
| Wengang, Chiayi | 0.21 m | 156 km | Taiwan |
| Ishigakiko · Okinawa | 0.17 m | 267 km | Japan |
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.