Picture of an earthquake alert. Photo: VCG After the Institute of Care-life, a Chengdu-based disaster reduction laboratory, mistakenly issued a 7.7-magnitude alert for a 4.7-magnitude earthquake, the Sichuan earthquake agency on Monday accused the institute of using the name of the official earthquake early warning network without authorization, saying its authorization to use the network had already been terminated last month. A 4.7-magnitude earthquake struck Yibin at 8:26 am on Monday, according to the China Earthquake Networks Center. However, the Institute of Care-life issued a 7.7-magnitude earthquake alert just five seconds after the quake struck, causing panic among many users. The institute used the name of the "China Earthquake Early Warning Network" (an early warning system under the China Earthquake Administration) without authorization to issue a 7.7-magnitude earthquake alert to the public through Honor and Vivo smartphones, as well as Xiaotiancai smartwatches, drawing widespread public attention, said the Sichuan earthquake agency in a statement. The agency said it had terminated the institute's third-party authorization to access emergency earthquake information services from the China Earthquake Early Warning Network on July 22, 2026. In response to the false alarm, the Institute of Care-life said that its earthquake early-warning network initially estimated the quake at magnitude 7.7 five seconds after it occurred, before revising the estimate to 6.4 at the sixth second, 3.7 at the seventh second, 4.1 at the eighth second and 3.9 at the 16th second. The estimated magnitude automatically converged to 3.9 by the 17th second after the earthquake, the institute said. Addressing the significant discrepancy, the Institute of Care-life said that deviations in estimates of an earthquake's magnitude and epicenter are inevitable to some extent, as early-warning information is generated automatically shortly after a quake begins, before the seismic event has ended. The Institute of Care-life apologized for the inaccurate alert and said it would investigate the cause as soon as possible while improving its technology and services. Global Times 。 【期货盘面】PVC2701合约昨晚收于4523元/吨，跌1.16%。【现货基差】杭州PVC市场弱势盘整，现货价格小幅调整，盘中跌势带动成交重心下移。电石法五型报价4360—4470元/吨，三联报价4360—4400元/吨，宜化、金泰、中泰报价4380—4470元/吨，天业报价4400—4450元/吨左右，北元报价4550—4600元/吨左右，八型、三型报价4650—4780元/吨左右。【供需库存】隆众数据显示，本周PVC（华东及华...。
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