Shaking intensity
- III
- IV
- V
- VI
Strongest contour: Strong (VI). Modelled by USGS ShakeMap; contours show where shaking was expected to reach each level, not damage.
Who felt it
People in the shaking
- VIStrong39,000
- VModerate559,000
- IVLight14.2 million
- IIIWeak31 million
- IIWeak1.8 million
| Place | Population | Shaking |
|---|---|---|
| Zhongba | 762,000 | V |
| Mianyang | 4.9 million | IV |
| Jiannan | 478,000 | IV |
| Deyang | 3.9 million | IV |
| Fangting | 413,000 | IV |
| Luocheng | 591,000 | IV |
| Chengdu | 14.6 million | IV |
| Guankou | 671,000 | III |
Past earthquakes here. A magnitude 7.7 earthquake 384 km s of this event struck Luhuo, China on February 6, 1973 (UTC), with estimated population exposures of 20,000 at intensity VIII and 31,000 at intensity IX or greater, resulting in a reported 2,199 fatalities.
Local buildings. Overall, the population in this region resides in structures that are vulnerable to earthquake shaking, though resistant structures exist. The predominant vulnerable building types are adobe block and unreinforced brick with mud construction.
Population and intensity modelled by USGS PAGER. Estimates, not a count of people affected.
Official source
View the USGS record ↗U.S. Geological Survey
Terremoto preserves this event snapshot for a stable public link. USGS remains the authoritative source for revisions and scientific details. Shaking contours and population estimates come from USGS ShakeMap and PAGER, which revise them as more data arrives.