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Seismic activity and warning system error in Yibin, Sichuan
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2026-08-24 02:14 UTC → 2026-08-24 15:29 UTC ·
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Seismic activity and warning system error in Yibin, Sichuan
Sichuan province has experienced a period of increased seismic activity, particularly within the Yibin region. On August 7, 2026, June 29, a 5.5 magnitude earthquake caused at least 15 injuries and damage to approximately 900 homes. Subsequent tremors included two earthquakes on August 3 measuring 4.8 and 4.2, and a 4.9 magnitude earthquake occurred in High Gao County at a shallow depth of 6 km. No injuries, fatalities, or significant property damage were reported following that specific event. on August 7. On August 24, 2026, another 4.9 a 4.7 magnitude earthquake struck Changning County in Yibin. This follows While no casualties were immediately reported, the event triggered widespread panic due to a pattern of tremors major error in the area, including two earthquakes on August 3 measuring 4.8 earthquake early warning system. Initial alerts sent to mobile devices and 4.2, as well as smartwatches incorrectly predicted a 5.5 magnitude earthquake on June 29 that of 7.7. The Chengdu Hi-tech Disaster Reduction Institute apologized, describing the 7.7 magnitude report as the “largest discrepancy in the system’s 15-year history.” The institute attributed the error to the earthquake’s shallow 5-kilometer focal depth, which caused at least 15 injuries and damage peak ground acceleration to approximately 900 homes. reach 153mg, leading the automated system to overestimate the magnitude before correcting it. Following the event, a dispute arose between the Sichuan Earthquake Bureau and the institute regarding the unauthorized use of the name ‘China Earthquake Early Warning Network’. The Bureau stated that third-party services had been terminated in July 2026, while the institute maintained that the name was established through a 2020 memorandum of understanding co-signed with the China Earthquake Administration.
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- 2026-08-24 15:29 UTC Seismic activity and warning system error in Yibin, Sichuan
- 2026-08-24 02:14 UTC Seismic activity in Yibin, Sichuan
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