Historical tsunamis · Apr 7, 2011, 2:32 PM UTC
2011 E. Coast Honshu Island tsunami
Japan
The tsunami of Apr 7, 2011, 2:32 PM UTC originated near E. Coast Honshu Island (Japan).
Key facts
- Date
- Apr 7, 2011, 2:32 PM UTC
- Cause
- Earthquake
- Magnitude
- M7.1
- Depth
- 42 km
- Maximum documented water height
- 0.08 m
- Deaths
- 3
- Injuries
- 132
- Damage
- limited (under US$ 1 million)
- Observation records
- 1
- Countries affected
- 1
It was triggered by a magnitude 7.1 earthquake at a depth of 42 km.
The highest documented water height was 0.08 m (Ofunato, Japan).
1 observation sites in 1 countries are recorded.
The database records 3 deaths.
Damage is estimated at limited (under US$ 1 million).
Map of observation sites
1Each 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 7, 2011, 2:32 PM UTC
- 0:20 hJapan · Ofunato · 0.08 m
1 places with a documented arrival time
Observations by country
| Country | Observation records | Maximum documented water height | Deaths | Earliest arrival |
|---|---|---|---|---|
| Japan | 1 | 0.08 m Ofunato | — | 0:20 h |
Highest documented water heights
1 / 1Individual 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 |
|---|---|---|---|
| Ofunato · Iwate | 0.08 m | 84 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.