Significant earthquakes of 450

450 Earthquake: Instanbul (Constantinople), Turkey

450

An earthquake struck Instanbul (Constantinople), Turkey in 450. It caused a tsunami.

Map

Where it struck, with the other significant earthquakes within 200 km. Circles are sized and colored by magnitude; select one for its page.

The earthquake

Date
450
Place
Instanbul (Constantinople), Turkey
Intensity
5 on the Modified Mercalli scale
Epicenter
40.400° N, 28.400° E
Country
Turkey

The toll

The record gives no deaths, injuries or damage for this earthquake.

What the record says

NCEI’s account, from the sources it cites.

450, January. Constantinople. Violent shocks. Lycosthenes gives the date 454. (reference #521)

450. 41.04 N, 28.98 E, intensity V. Vicinity of Istanbul. (reference #1071)

450, January. Sea of Marmara, Constantinople (tsunami intensity iii). Many Historians of the time mention an earthquake in Constantinople which occurred in January 450. From their narrations it appears that the shock was not very severe and that no damage of any magnitude was caused. Except Lycosthenes none of the authorities consulted mentions a seismic seawave. Lycosthenes, most probably referring to the earthquake at Constantinople of 447, says that: <<... the earth opened in many chasms, and many cities in Asia were overthrown. The sea abandoned its shores and fire appeared in the sky. The earthquake lasted for six months ...>> (reference #23)

...evidence points strongly to an earthquake on Sunday 26 January. The only year during Theodosius's reign in which the 26 January fell on a Sunday was AD 447, which would indicate that this event was not a later event on 26 January AD 450... (ref #9116)

Other significant earthquakes nearby

Within 200 km, the deadliest first.

More

Significant earthquakes of 450The 400sRecent earthquakes near here

Sources

Significant earthquakes 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 earthquake 9972.