A disaster research institute in Chengdu, China, apologized on Monday for issuing an incorrect earthquake magnitude alert that significantly overstated the intensity of a tremor in Sichuan province. The Institute of Care-Life released a 7.7 magnitude alert for a quake that other official monitoring agencies later confirmed was a 4.7 magnitude event. The organization stated it would investigate the cause of the technical deviation to prevent similar errors in the future.
The incident began at 8:26 a.m. local time on Monday when a 4.7 magnitude earthquake struck Yibin. According to the Institute of Care-Life, its automated system issued the 7.7 magnitude alert five seconds after the quake began. The institute reported that its network revised the estimate to 6.4 magnitude at the sixth second, 3.7 at the seventh second, 4.1 at the eighth second, and 3.9 at the 16th second as more data became available.
China's Earthquake Networks Center, the official national monitoring body, reported the event as a 4.7 magnitude quake. The state-backed Global Times newspaper reported that the high initial magnitude alert from the institute caused panic among members of the public who received the notification. The Institute of Care-Life is a disaster reduction laboratory based in the southwestern metropolis of Chengdu.
The concrete day-to-day change for individuals in the region involves a loss of confidence in automated early-warning systems. Users who rely on smartphone notifications or public broadcasts for earthquake alerts may now question the validity of future warnings, which could lead to delayed reactions during a genuine high-magnitude emergency. The Global Times noted that the false alert caused immediate alarm, which for many translated into an unnecessary evacuation or panic in the minutes following 8:26 a.m. on Monday. The institute has not specified how many individual users received the notification, but its warnings are typically integrated into various public and private digital platforms.
The knock-on effects of this error could influence future policy regarding how non-governmental research institutes, like the Institute of Care-Life, are permitted to broadcast emergency alerts. It sets a precedent for increased scrutiny of automated algorithm revisions, which in this case fluctuated between 7.7 and 3.7 magnitude within a span of two seconds. What happens next is an internal investigation by the institute to identify the technical cause of the deviation. The institute has not yet provided a deadline for this investigation or announced specific changes to its alerting protocol. Official government monitors will likely continue to serve as the primary source for verified seismic data while the private lab reviews its systems.