July 15, 850 Earthquake: Rey (Ray), Iran
An earthquake struck Rey (Ray), Iran on July 15, 850. It killed 45,000 people.
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
- July 15, 850
- Place
- Rey (Ray), Iran
- Tsunami
- None recorded
- Epicenter
- 35.300° N, 51.200° E
- Country
- Iran
The toll
- Deaths
- 45,000
- 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.
850 July 15 - 851 July 04. In 236 A.H.L., according to the book "Tabsurat ul Avam" an earthquake killed 45,000 persons at Ray. (reference #1217)
Other significant earthquakes nearby
Within 200 km, the deadliest first.
- June 7, 1755, Tabriz,kashan, N, Iran
- January 30, 1778, Kashan, Iran
- September 1, 1962, Buyin-Zara, Iran
- May 4, 1639, Qazvin, Iran
- January 23, 1909, Silakor, Iran
- April 20, 1608, Gilan, W Mazandaran, Iran
- May 12, 1844, Kashan, Qamsar, Kamu, Kushian, Chuka, Iran
- 1574, Fin,kashan, Iran
- July 2, 1957, Hazanderan, Abegarm, Iran
- May 9, 1830, Damavand,tehran,semnan,damghan, Iran
- June 22, 2002, Ab Garm-Abhar-Avaj-Shirin Su, Iran
- March 5, 1935, Alborz, Iran
- May 28, 2004, Mazandaran, Qazvin, Tehran, Iran
- March 25, 1983, Tehran, Damavond, Amoi, Iran
- December 19, 1980, N Central, Tehran, Iran
More
Significant earthquakes of 850The 800sRecent earthquakes near hereThis day in weather history
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 217.