| 1440-10-26 | 103.3 | 36.7 | 6.2 | 200 | GANSU, CHINA |
| 1561-07-25 | 106.2 | 37.5 | 7.2 | many | NINGXIA, CHINA |
| 1590-07-07 | 103.9 | 35.4 | 5.5 | many | GANSU, CHINA |
| 1622-10-25 | 106.3 | 36.5 | 7.0 | 12000 | GANSU-NINGXIA BORDER REG, CHINA |
| 1709-10-14 | 105.3 | 37.4 | 7.5 | 2000 | NEI MONGOL-NINGXIA BDR, CHINA |
| 1718-06-19 | 105.2 | 35.0 | 7.5 | 40000 | GANSU-NINGXIA BORDER REG, CHINA |
| 1739-01-03 | 106.5 | 38.8 | 8.0 | 50000 | NEI MONGOL-NINGXIA BDR, CHINA |
| 1748-11-21 | 106.1 | 36.4 | 5.5 | 40 | GANSU-NINGXIA BORDER REG, CHINA |
| 1765-09-02 | 105.0 | 34.8 | 6.5 | 2068 | GANSU, CHINA |
| 1819-02-24 | 102.3 | 36.1 | 5.8 | 126 | GANSU-QINGHAI BORDER REG, CHINA |
| 1837-09-00 | 103.7 | 34.6 | 6.0 | 37 | GANSU, CHINA |
| 1852-05-26 | 105.2 | 37.5 | 6.0 | 300 | NEI MONGOL-NINGXIA BDR, CHINA |
| 1888-11-02 | 104.2 | 37.1 | 6.2 | many | NEI MONGOL-NINGXIA-GANSU, CHINA |
| 1893-06-01 | 101.8 | 36.6 | 5.5 | many | NORTHERN QINGHAI, CHINA |
| 1920-12-16 | 104.9 | 36.7 | 8.5 | 220000 | GANSU, CHINA |
| 1921-04-12 | 106.2 | 35.8 | 6.5 | many | GANSU-NINGXIA BORDER REG, CHINA |
| 1927-05-23 | 102.2 | 37.7 | 8.0 | 35000 | GANSU-QINGHAI BORDER REG, CHINA |
| 2003-10-25 | 101.0 | 38.4 | 5.8 | 9 | GANSU-QINGHAI BORDER REG, CHINA |
| 2003-11-13 | 103.9 | 34.7 | 5.1 | 1 | GANSU, CHINA |
Testimonies, photos
USGS/NEIC Denver, USA
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