The 1990 Gonghe earthquake occurred on April 26 at 17:37 China Standard Time in Hainan Tibetan Autonomous Prefecture, Qinghai Province.

The Longyangxia Reservoir about 60 km away from the earthquake experienced strong shaking which triggered landslides but its nearby power plant and dam were in normal working conditions.

[6] Total damage caused by the earthquake is estimated at 270 million Chinese Yuan.

[7] In the zone with the highest intensity, IX, encompassing Gonghe County, all brick and adobe constructed houses were razed.

[8] Elements of both sinistral strike-slip and reverse components were detected during the co-seismic rupture, with the latter having a greater sense.