- Type:
- Earthquake
- Date:
- March 11, 1231 CE
- Location:
- Turkey, Istanbul (Constantinople)
- Magnitude:
- 6.9 Ms
- Intensity (MMI):
- 8
Cross-catalog records
This event is recorded in 3 separate scientific catalogs, each of which may give a different magnitude (the disagreement between catalogs is itself valuable for research):
Other earthquake records of 1231 CE
- Italy, S. Germano, Montecassino
- Turkey · Mw 7
- Italy · Mw 5.1
- Cassino · Mw 5.11
- Istanbul · Mw 6.81
Source: NOAA National Centers for Environmental Information (NCEI), Global Significant Earthquake Database, doi:10.7289/V5TD9V7K · License: U.S. Government Work · institutional record ↗
Frequently asked questions
- When did 1231 CE Earthquake — Turkey, Istanbul (Constantinople) happen?
- March 11, 1231 CE.
- Where does this information come from?
- This record comes from NOAA National Centers for Environmental Information (NCEI), Global Significant Earthquake Database, doi:10.7289/V5TD9V7K; it was not hand-authored and is stored together with its source.