Historical tsunamis · Aug 9, 1912, 1:29 AM UTC
1912 Marmara Sea tsunami
Turkey
The tsunami of Aug 9, 1912, 1:29 AM UTC originated near Marmara Sea (Turkey).
Key facts
- Date
- Aug 9, 1912, 1:29 AM UTC
- Cause
- Earthquake and landslide
- Magnitude
- M7.2
- Depth
- 15 km
- Maximum documented water height
- 2.70 m
- Deaths
- 2,800
- Injuries
- 7,000
- Houses destroyed
- 24,700
- Damage
- extreme (over US$ 25 million)
- Observation records
- 6
- Countries affected
- 1
It was triggered by a magnitude 7.2 earthquake at a depth of 15 km.
The highest documented water height was 2.70 m (Yesilkoy, Turkey).
6 observation sites in 1 countries are recorded.
The database records 2,800 deaths.
Houses destroyed: 24,700.
Damage is estimated at extreme (over US$ 25 million).
Map of observation sites
6Each dot is a documented observation site; colour and size show the observed water height. The triangle marks the source.
Observations by country
| Country | Observation records | Maximum documented water height | Deaths | Earliest arrival |
|---|---|---|---|---|
| Turkey | 6 | 2.70 m Yesilkoy | — | — |
Highest documented water heights
6 / 6Individual 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 |
|---|---|---|---|
| Yesilkoy | 2.70 m | 128 km | Turkey |
| Canakkale | — | 88 km | Turkey |
| Hayirsiz Island | — | 32 km | Turkey |
| Kadikoy | — | 165 km | Turkey |
| Pasabahce | — | 171 km | Turkey |
| Tekirdag | — | 42 km | Turkey |
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.