8月24日8时26分，四川地区发生地震预警误报事件。1成都高新减灾研究所发布的预警信息标注为"中国地震预警网"，显示震级为7.7级，1但中国地震台网在8分钟后测定实际震级仅为4.7级。1这一重大偏差随即引发中国地震局严厉回应。8月28日，中国地震局监测预报司发函要求全国各省市地震局停止与减灾研究所的合作，1指责其冒用官方名义。
减灾研究所对误报进行了解释。1该所负责人王暾表示，此次预警误报源于震源深度浅、峰值加速度大的地震特性，震后16秒时预警震级已收敛到3.9级。1然而这一说明未能化解争议，反而暴露了中国地震预警领域长期存在的权力争议。1国家地震预警工程自2001年开始研究，12024年正式投入使用，1而减灾研究所创办的大陆地震预警网早在2009年创办，12011年已开始公开发布预警信息。1双方曾在2020年签署《地震预警合作谅解备忘录》，1但本次事件反映出官方地震预警工程与民营预警网之间的制度博弈仍未真正解决。
A magnitude 4.7 earthquake in Sichuan was mistakenly reported as magnitude 7.7 on August 24, 2026, at 8:26 AM, exposing deep institutional tensions within China's earthquake early warning infrastructure 1. The China Earthquake Networks Center officially determined the tremor's magnitude as 4.7 eight minutes after the initial alert, yet information bearing the label "China Earthquake Early Warning Network" and attributed to the Chengdu High-Tech Earthquake Reduction Research Institute displayed a magnitude of 7.7, prompting the China Earthquake Administration to accuse the institute of misappropriating official credentials 1.
The incident triggered swift administrative action. On August 28, 2026, the Monitoring and Forecasting Division of the China Earthquake Administration issued a directive ordering all provincial and municipal earthquake bureaus nationwide to cease cooperation with the research institute 1. The dispute underscores a fundamental conflict between China's state-run National Earthquake Early Warning Engineering—which began research in 2001 and commenced formal operation in 2024—and the independently operated Continental Earthquake Early Warning Network, established in 2009 and publicly releasing alerts since 2011 1. According to the research institute's explanation, the initial magnitude estimate reflected the earthquake's shallow focal depth and high peak ground acceleration; the predicted magnitude converged to 3.9 within 16 seconds after the tremor 1. The two organizations had previously signed a memorandum of understanding on earthquake early warning cooperation in 2020 1.
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