Historical tsunamis · Dec 8, 2025, 2:15 PM UTC
2025 Off Northeast Coast Honshu tsunami
Japan
The tsunami of Dec 8, 2025, 2:15 PM UTC originated near Off Northeast Coast Honshu (Japan).
Key facts
- Date
- Dec 8, 2025, 2:15 PM UTC
- Cause
- Earthquake
- Magnitude
- M7.6
- Depth
- 45 km
- Maximum documented water height
- 0.70 m
- Injuries
- 46
- Houses destroyed
- 1
- Damage
- moderate (about US$ 1–5 million)
- Observation records
- 19
- Countries affected
- 1
It was triggered by a magnitude 7.6 earthquake at a depth of 45 km.
The highest documented water height was 0.70 m (Kujiko, Japan).
19 observation sites in 1 countries are recorded.
Houses destroyed: 1.
Damage is estimated at moderate (about US$ 1–5 million).
Map of observation sites
19Each 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) · Dec 8, 2025, 2:15 PM UTC
- 0:04 hJapan · Mutsuogawara · 0.40 m
15 places with a documented arrival time
Observations by country
| Country | Observation records | Maximum documented water height | Deaths | Earliest arrival |
|---|---|---|---|---|
| Japan | 19 | 0.70 m Kujiko | — | 0:04 h |
Highest documented water heights
15 / 19Individual 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 |
|---|---|---|---|
| Kujiko · Iwate | 0.70 m | 94 km | Japan |
| Urakawa · Hokkaido | 0.50 m | 138 km | Japan |
| Hachinohe · Aomori | 0.40 m | 75 km | Japan |
| Mutsuogawara · Aomori | 0.40 m | 65 km | Japan |
| Shoyagyoko · Hokkaido | 0.30 m | 148 km | Japan |
| Tokachiko · Hokkaido | 0.30 m | 173 km | Japan |
| Tomakomainishiko · Hokkaido | 0.30 m | 187 km | Japan |
| Ayukawa · Miyagi | 0.20 m | 306 km | Japan |
| Hakodate · Hokkaido | 0.20 m | 145 km | Japan |
| Kamaishi · Iwate | 0.20 m | 194 km | Japan |
| Kushiro · Hokkaido | 0.20 m | 285 km | Japan |
| Miyako · Iwate | 0.20 m | 151 km | Japan |
| Ofunato · Iwate | 0.20 m | 223 km | Japan |
| Sendaishinko · Miyagi | 0.20 m | 319 km | Japan |
| Shiraoi · Hokkaido | 0.20 m | 185 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.