Historical tsunamis · Aug 8, 2024, 7:42 AM UTC
2024 Hyuganada Sea tsunami
Japan
The tsunami of Aug 8, 2024, 7:42 AM UTC originated near Hyuganada Sea (Japan).
Key facts
- Date
- Aug 8, 2024, 7:42 AM UTC
- Cause
- Earthquake
- Magnitude
- M7.1
- Depth
- 25 km
- Maximum documented water height
- 0.50 m
- Injuries
- 14
- Houses destroyed
- 1
- Damage
- limited (under US$ 1 million)
- Observation records
- 21
- Countries affected
- 1
It was triggered by a magnitude 7.1 earthquake at a depth of 25 km.
The highest documented water height was 0.50 m.
21 observation sites in 1 countries are recorded.
Houses destroyed: 1.
Damage is estimated at limited (under US$ 1 million).
Map of observation sites
21Each 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) · Aug 8, 2024, 7:42 AM UTC
- 0:18 hJapan · Tanegashima (Nishinoomote) · 0.10 m
14 places with a documented arrival time
Observations by country
| Country | Observation records | Maximum documented water height | Deaths | Earliest arrival |
|---|---|---|---|---|
| Japan | 21 | 0.51 m Miyazakiko | — | 0:18 h |
Highest documented water heights
15 / 21Individual 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 |
|---|---|---|---|
| Miyazakiko · Miyazaki | 0.51 m | 21 km | Japan |
| Aburatsu · Miyazaki | 0.40 m | 18 km | Japan |
| Tosa-Shimizu · Kochi | 0.26 m | 179 km | Japan |
| Makurazaki · Kagoshima | 0.18 m | 127 km | Japan |
| Tanegashima (Kumano) · Kagoshima | 0.18 m | 149 km | Japan |
| Hososhima · Miyazaki | 0.17 m | 80 km | Japan |
| Shibushi-Ko · Kagoshima | 0.17 m | 49 km | Japan |
| Odomari · Kagoshima | 0.15 m | 112 km | Japan |
| Murotomisaki · Kochi | 0.13 m | 302 km | Japan |
| Kushimoto · Wakayama | 0.11 m | 443 km | Japan |
| Tanegashima (Nishinoomote) · Kagoshima | 0.10 m | 120 km | Japan |
| Kochi · Kochi | 0.07 m | 278 km | Japan |
| Kominato, Amami Island · Kagoshima | 0.07 m | 423 km | Japan |
| Uwajima · Ehime | 0.07 m | 194 km | Japan |
| Chichijima Island · Bonin Is, Tokyo | 0.06 m | 1,154 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.