Historical tsunamis · Jun 26, 1927, 11:20 AM UTC
1927 Crimea, Black Sea tsunami
Ukraine
The tsunami of Jun 26, 1927, 11:20 AM UTC originated near Crimea, Black Sea (Ukraine).
Key facts
- Date
- Jun 26, 1927, 11:20 AM UTC
- Cause
- Earthquake and landslide
- Magnitude
- M6.0
- Depth
- 27 km
- Maximum documented water height
- 0.70 m
- Damage
- moderate (about US$ 1–5 million)
- Observation records
- 12
- Countries affected
- 2
It was triggered by a magnitude 6.0 earthquake at a depth of 27 km.
The highest documented water height was 0.70 m (Alushta, Ukraine).
12 observation sites in 2 countries are recorded.
Outside the source country, the earliest documented arrival was at Tuapse (Russia) after 0:39 h.
Damage is estimated at moderate (about US$ 1–5 million).
Map of observation sites
12Each 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) · Jun 26, 1927, 11:20 AM UTC
- 0:08 hUkraine · Yalta · 0.12 m
- 0:39 hRussia · Tuapse · 0.04 m
6 places with a documented arrival time
Observations by country
| Country | Observation records | Maximum documented water height | Deaths | Earliest arrival |
|---|---|---|---|---|
| Ukraine | 10 | 0.70 m Alushta | — | 0:08 h |
 Russia | 2 | 0.04 m Novorossiysk | — | 0:39 h |
Highest documented water heights
12 / 12Individual 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 |
|---|---|---|---|
| Alushta | 0.70 m | 31 km | Ukraine |
| Sevastopol | 0.16 m | 73 km | Ukraine |
| Yalta | 0.12 m | 22 km | Ukraine |
| Yevpatoriya | 0.07 m | 120 km | Ukraine |
| Alupka | 0.04 m | 28 km | Ukraine |
| Feodosiya | 0.04 m | 105 km | Ukraine |
| Novorossiysk | 0.04 m | 271 km | Russia |
| Sudak | 0.04 m | 67 km | Ukraine |
| Tuapse | 0.04 m | 374 km | Russia |
| Kerch | 0.03 m | 196 km | Ukraine |
| Alushta | — | 31 km | Ukraine |
| Gurzuf (Hurzuf) | — | 19 km | Ukraine |
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.