1610 BC Tsunami: Thera Island (Santorini), Greece
A tsunami caused by a volcano began at Thera Island (Santorini), Greece in 1610 BC. The water rose as high as 90 meters. Its effects were recorded at 2 places in at least 2 countries.
Where the waves reached
The source (white) and every runup with a place, colored by the water height recorded there. A ring is a runup NCEI marks doubtful.
- Under 1 m
- 1 to 3 m
- 3 to 10 m
- 10 to 30 m
- 30 m and more
- Height not recorded
Travel times
How long the first wave took to reach each part of the ocean, one line for each hour up to 24, estimated from the source and the depth of the sea.
The travel times are computed in your browser, which needs JavaScript.
- 1 to 4 hours
- 5 to 6 hours
- 7 to 14 hours
- 15 hours and more
Computed in your browser the way NOAA’s own travel time maps are: the wave travels at the square root of gravity times the depth, over NOAA’s ETOPO1 depths averaged to a 10 arc-minute grid. Checked against NOAA NCEI’s maps for 21 tsunamis over the first 24 hours, these lines fall within 10 minutes of NCEI’s at half the points compared and within 52 minutes at 9 in 10. They give when the first wave could arrive, not how high it is; bays, harbors and island chains finer than the grid can see it later. Not for use in a warning: see tsunami.gov.
The tsunami
- Date
- 1610 BC
- Source
- Thera Island (Santorini), Greece
- Cause
- Volcano
- Earthquake
- The earthquake
- Volcano
- The eruption that caused it
- Maximum water height
- 90 m (295.3 ft)
- Runups recorded
- 2
- Tsunami intensity (Soloviev-Imamura)
- 6
- Waters
- Ocean
- How certain
- Definite tsunami
- Source location
- 36.400° N, 25.400° E
The toll
- Deaths
- Many (about 101 to 1,000)
- Damage
- Severe (about $5 to $25 million)
Where the literature gives no number, NCEI records a description on a scale of 1 to 4, printed here in its words. Damage is in millions of US dollars of the year of the event, not adjusted for inflation.
What the record says
NCEI’s account, from the sources it cites.
1410 B.C., 36.4 N, 25.4 E, tsunami intensity vi, validity 3. Explosion of volcano Santorini causing caldera collapse. Catastrophic tsunami generated. Destruction of Minoan towns in North Crete coast (Amnisos, Nirou Khani, Malia, Pseira...) first hypotesised to be the effect of the tsunami by Marinatos [reference #2986]. Devastation from the tsunami occurred along northern Crete, western Cyprus, and the eastern Mediterranean as far as the Syrian coasts. Estimates of height of the tsunami vary from 40 to 90 m. The tsunami may have resulted from the caldera collapse, subsidence, or from an explosion when sea water encountered the hot magma in the collapsing caldera. (reference #4139)
Second millennium B.C.
According to excavated cuneiform texts on clay boards, a tsunami of intensity vi [?] occurred in Syria. These writings most likely referred to the events of 1380 B.C. (1380+ 100) B.C., and to the period between 1700 B.C. and 1380 B.C. in accordance with other sources.
Aegean Sea, Island of Thira, Hellenic Arc, Island of Crete. The catastrophic eruption of the volcano of Santorini accompanied by earthquakes and a powerful tsunami. As a result of natural disasters, the potent Minoan
Kingdom of the Late Bronze age ceased to exist on the islands of the Aegean Sea. No eyewitness account of these events has reached modern times. The reconstruction of events is based on the data of marine and ground geology,
geochemistry, archaeology, in combination with fragmentary allusions in annals and legends written considerably later....
...Application of the methods of chemical analysis of isotopes has led to the conclusion that the first enormous eruption occurred earlier than 25,000 years ago, the second not earlier than 5,000 years ago. More accurately, the eruption has been dated at (1410 + 100) B.C. using the Carbon - 14 isotope inside the fragment of an ancient tree found under the ash layer on the present day Island of Thira. An estimation of the age of this sample, performed later, by the same method resulted in the earlier date of the eruption and of the ashfall: between 1700 and 1620 B.C., most likely, in 1640 - 1620 B.C.
...More reliable evidence that the tsunami generated by the eruption of Santorini did reach the shores of the Near East, actually retaining its destructive force, was obtained during the geological exploration carried out in the region of the Syrian city of Ugarit, which used to be the capital of the ancient North - Phoenician state. A library of clay boards filled up with cuneiform was
excavated. Scientists deciphered one of the poems with an account of how the harbour and half of the city of Ugarit were washed out by a strong wave approximately in 1380 B.C. It is quite possible that precisely this date should be
considered the most probable date for the paroxysmal eruption of Santorini and the tsunami that followed it.
(above from reference #2130)
Dates of eruption as listed in literature:
YearReference #late 17th Century B.C24061650 B.C.14121630 B.C.111641638 B.C.23801627-1600 B.C29911610 B.C.96751410 B.C.41391380 B.C.416, 2130
Every runup
Nearest the source first. Heights are above sea level at the time; a tide gauge reads half the wave’s full height.
| Where | Country | Km from source | Water height, m | Inland, m | Measured by | First wave, UTC | Deaths |
|---|---|---|---|---|---|---|---|
| N. and E. Coast Crete | Greece | 124 | Eyewitness observation of water height | ||||
| Ugarit | Syria | 937 | Eyewitness observation of water height |
More
Every tsunami in 1610 BCThe 1600s BCTsunamis of GreeceThe earthquakeThe eruptionAlerts in force
Sources
Tsunami events and runups from NOAA’s National Centers for Environmental Information, Global Historical Hazard Database, cited as NCEI/WDS, doi:10.7289/V5PN93H7. Public domain. Read 2026-09-24. NCEI tsunami event 3.