The 426 BC Malian Gulf tsunami devastated the coasts of the Malian and Euboean Gulfs,

Greece Greece, officially the Hellenic Republic, is a country in Southeast Europe. Located on the southern tip of the Balkan peninsula, it shares land borders with Albania to the northwest, North Macedonia and Bulgaria to the north, and Turkey to th ...

, in the summer of 426 BC.

Thucydides Thucydides ( ; ; BC) was an Classical Athens, Athenian historian and general. His ''History of the Peloponnesian War'' recounts Peloponnesian War, the fifth-century BC war between Sparta and Athens until the year 411 BC. Thucydides has been d ...

inquired into its causes, and concluded that the

tsunami A tsunami ( ; from , ) is a series of waves in a water body caused by the displacement of a large volume of water, generally in an ocean or a large lake. Earthquakes, volcanic eruptions and underwater explosions (including detonations, ...

must have been caused by an

earthquake An earthquakealso called a quake, tremor, or tembloris the shaking of the Earth's surface resulting from a sudden release of energy in the lithosphere that creates seismic waves. Earthquakes can range in intensity, from those so weak they ...

"A History of the Peloponnesian War", 3.89.2–5
/ref> He was thus historically the first known to correctly interpret the cause of a tsunami as a preceding geological event.

Herodotus Herodotus (; BC) was a Greek historian and geographer from the Greek city of Halicarnassus (now Bodrum, Turkey), under Persian control in the 5th century BC, and a later citizen of Thurii in modern Calabria, Italy. He wrote the '' Histori ...

, in contrast, had attributed the Potidaea tsunami to the divine wrath of

Poseidon Poseidon (; ) is one of the twelve Olympians in ancient Greek religion and mythology, presiding over the sea, storms, earthquakes and horses.Burkert 1985pp. 136–139 He was the protector of seafarers and the guardian of many Hellenic cit ...

Ancient records

The Malian Gulf

paleotsunami A paleotsunami is a tsunami that occurs prior to written history where there are no documented observations. Paleotsunamis are evidenced by modern technology and scientific research. One of the largest was a megatsunami resulting from the Chicxul ...

was caused by one of a series of earthquakes in the summer of 426 BC which affected the course of the

Peloponnesian War The Second Peloponnesian War (431–404 BC), often called simply the Peloponnesian War (), was an Ancient Greece, ancient Greek war fought between Classical Athens, Athens and Sparta and their respective allies for the hegemony of the Ancien ...

by forcing the advancing

Spartans Sparta was a prominent city-state in Laconia in ancient Greece. In antiquity, the city-state was known as Lacedaemon (), while the name Sparta referred to its main settlement in the valley of Evrotas river in Laconia, in southeastern P ...

to abort their planned invasion of

Attica Attica (, ''Attikḗ'' (Ancient Greek) or , or ), or the Attic Peninsula, is a historical region that encompasses the entire Athens metropolitan area, which consists of the city of Athens, the capital city, capital of Greece and the core cit ...

“A History of the Peloponnesian War”, 3.89.1
/ref>

Strabo Strabo''Strabo'' (meaning "squinty", as in strabismus) was a term employed by the Romans for anyone whose eyes were distorted or deformed. The father of Pompey was called "Gnaeus Pompeius Strabo, Pompeius Strabo". A native of Sicily so clear-si ...

reported that throughout Greece parts of islands were submerged, rivers permanently displaced and towns devastated.

"Geography", 1.3.20
/ref> The tsunami itself hit the coast of the Malian Gulf at three different places, reaching towns as far as three quarters of a mile inland. The force of the tsunami was such that at one place a

trireme A trireme ( ; ; cf. ) was an ancient navies and vessels, ancient vessel and a type of galley that was used by the ancient maritime civilizations of the Mediterranean Sea, especially the Phoenicians, ancient Greece, ancient Greeks and ancient R ...

was lifted out of its dock and thrown over a city wall. Thucydides gave the following account, noting the characteristic sequence of quake, receding water and huge wave:

About the same time that these earthquakes were so common, the sea at
Orobiae Orobiae or Orobiai () was a town on the western coast of ancient Euboea, between Aedepsus and Aegae, which possessed an oracle of Apollo Selinuntius. The town was partly destroyed by an earthquake and an inundation of the sea in the 426 BC Mali ...
, in Euboea, retiring from the then line of coast, returned in a huge wave and invaded a great part of the town, and retreated leaving some of it still under water; so that what was once land is now sea; such of the inhabitants perishing as could not run up to the higher ground in time. A similar inundation also occurred at Atalanta, the island off the Opuntian-Locrian coast, carrying away part of the Athenian fort and wrecking one of two ships which were drawn up on the beach. At Peparethus also the sea retreated a little, without however any inundation following; and an earthquake threw down part of the wall, the town hall, and a few other buildings. ... The cause, in my opinion, of this phenomenon must be sought in the earthquake. At the point where its shock has been the most violent the sea is driven back, and suddenly recoiling with redoubled force, causes the inundation. Without an earthquake I do not see how such an accident could happen.

While the

epicentre The epicenter (), epicentre, or epicentrum in seismology is the point on the Earth's surface directly above a hypocenter or focus, the point where an earthquake or an underground explosion originates. Determination The primary purpose of a s ...

of the 426 BC Malian Gulf tsunami quake is yet to be located, evidence points at a crustal movement along one of the faults in the Euboean gulf, rather than submarine landslides.

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References

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Ancient records

See also

Footnotes

References

Further reading