1303 Hongdong earthquake
| Local date | September 25, 1303 |
|---|---|
| Magnitude | Mw 7.2–7.6 |
| Epicenter | 36°48′N 111°42′E / 36.8°N 111.7°E |
| Max. intensity | MMI XI (Extreme) |
| Casualties | Three different records: 170,000, 200,000+ and 270,000. |
The 1303 Hongdong earthquake occurred in Yuan dynasty of the Mongol Empire, on September 25. The shock was estimated to have a moment magnitude of 7.6 and it had a maximum Mercalli intensity of XI (Extreme). This was one of the most deadly earthquakes in China, in turn making it one of the top disasters in China by death toll.