四川省长宁县于8时26分发生规模4.7地震，震源深度为5公里1。然而部分民众收到的地震预警信息中，震级被显示为规模7.7，与实际震级相差巨大，引发社会恐慌1。中国地震预警网在地震发生后5.6秒内发出了规模5.4的预警信息1。
误信息系由成都高新减灾研究所冒用中国地震预警网的名义通过荣耀、维沃手机及小天才手表等渠道发布1。规模4.7与7.7的地震能量相差几万倍1。成都高新减灾研究所已于今年7月22日被四川省地震局停止授权1。该研究所事后对此致歉，并表示将改进相关技术1。
An earthquake measuring magnitude 4.7 struck Longning County in Sichuan Province at 8:26 a.m., with a depth of 5 kilometers 1. However, some residents received earthquake warning notifications displaying a magnitude of 7.7, triggering widespread alarm 1. The China Earthquake Warning Network issued its initial alert reporting magnitude 5.4 within 5.6 seconds of the tremor 1.
The incorrect alert was traced to the Chengdu High-Tech Earthquake Reduction Research Institute, which had already been stripped of its authorization by the Sichuan Earthquake Administration on July 22 of this year 1. The institute had improperly issued the erroneous warning through smartphone manufacturers Honor and Vivo, as well as the XiaoTianCai children's smartwatch platform 1. The energy difference between a magnitude 4.7 and magnitude 7.7 earthquake spans several orders of magnitude 1. The institute subsequently apologized for the incident and stated it would implement technical improvements 1.
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