Natural Hazards and Earth System Sciences
Natural Hazards and Earth System Sciences
NHESS
Articles | Volume 26, issue 11
Articles | Volume 26, issue 11
https://doi.org/10.5194/nhess-26-5711-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-26-5711-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 11
Research article
 | 
11 Nov 2026
Research article |  | 11 Nov 2026

Reservoir-induced seismicity in China: Systematic characterization and implications for hazard assessment

Jiashan Zhang, Changsheng Jiang, Fengling Yin, Yiming Zhu, Hongyu Zhai, Jinmeng Bi, and Yan Zhang

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Short summary
Large reservoirs can sometimes trigger earthquakes. We combined a national reservoir map with 50 years of records to examine 1,435 Chinese reservoirs and identify 88 likely linked to filling. 95% of the resulting earthquakes struck within 25 km of the shore, with activity peaking a year or two after filling, mainly in geologically active regions. Reservoirs over 320 million cubic metres, or 16 km long, are far more prone, and the current 10 km assessment zone should be widened to 30-40 km.
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