Historical tsunamis · Aug 18, 1927, 7:28 PM UTC
1927 Kashima, Japan tsunami
Japan
The tsunami of Aug 18, 1927, 7:28 PM UTC originated near Kashima, Japan (Japan).
Key facts
- Date
- Aug 18, 1927, 7:28 PM UTC
- Cause
- Earthquake
- Magnitude
- M6.4
- Depth
- 20 km
- Maximum documented water height
- 0.40 m
- Observation records
- 2
- Countries affected
- 1
It was triggered by a magnitude 6.4 earthquake at a depth of 20 km.
The highest documented water height was 0.40 m.
2 observation sites in 1 countries are recorded.
Map of observation sites
2Each 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 18, 1927, 7:28 PM UTC
- 0:34 hJapan · Choshi · 0.18 m
1 places with a documented arrival time
Observations by country
| Country | Observation records | Maximum documented water height | Deaths | Earliest arrival |
|---|---|---|---|---|
| Japan | 2 | 0.18 m Choshi | — | 0:34 h |
Highest documented water heights
2 / 2Individual 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 |
|---|---|---|---|
| Choshi · Chiba | 0.18 m | 201 km | Japan |
| Mera · Chiba | 0.15 m | 215 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.