China News Service, Chengdu, October 21 (Yang Yudian) At 12:04 on October 21, a magnitude 4.6 earthquake occurred in Beichuan County, Mianyang City, Sichuan Province. The Chengdu High-tech Disaster Reduction Institute (hereinafter referred to as the Disaster Reduction Institute) and the emergency management department jointly built The Continental Earthquake Warning Network gave Mianyang City an early warning 13 seconds in advance, and an early warning to Chengdu City 34 seconds earlier.
When an earthquake occurs, TV users receive earthquake warning information in advance.
Photo courtesy of Chengdu High-tech Disaster Reduction Research Institute
Early warning information from the Continental Earthquake Warning Network showed that Mianyang City, 60 kilometers away from the epicenter, had an early warning time of 13 seconds, with an estimated intensity of 2.4 degrees, and a slight shock; Deyang City, 79 kilometers away from the epicenter, had an early warning time of 19 seconds and an estimated intensity of 2.0 degrees. , May feel the earthquake; Chengdu, 129 kilometers away from the epicenter, the warning time is 34 seconds, the estimated intensity is 1.3 degrees, and the earthquake may be felt; the Guangyuan city, 167 kilometers away from the epicenter, the warning time is 42 seconds, and the estimated intensity is 1.0 degree. There is a sense of shock.
Preliminary statistics show that schools, communities, and towns in Chengdu, Mianyang, Aba Prefecture, Deyang, Guangyuan and other cities (prefectures) that have applied earthquake warning and met the trigger conditions received early warning.
Xiaomi TV mobile phone users and Sichuan Broadcasting TV users who have activated the earthquake warning function received earthquake warning information in advance.
In addition, the Continental Earthquake Warning Network immediately issued earthquake warning information through nearly 50 government and media microblogs including the official Weibo of the Disaster Mitigation Institute. It also provided information for the China Earthquake Network Center, the National Early Warning Information Release Center, the National Disaster Reduction Center, and Sichuan Province. The Emergency Management Office, etc. provide simultaneous early warning information.
When an earthquake occurs, mobile phone users receive earthquake warning information in advance.
Photo courtesy of Chengdu High-tech Disaster Reduction Research Institute
It is understood that the earthquake intensity quick report and population heat map generated by the Continental Earthquake Early Warning Network 50 seconds after the earthquake indicate that the earthquake has a maximum intensity of 5 degrees, and the relevant data has been submitted to the emergency management department to provide emergency rescue decision-making reference.
Wang Tun, director of the Sichuan Provincial Key Laboratory of Earthquake Early Warning and Director of Chengdu High-tech Disaster Mitigation Research Institute, introduced that disaster mitigation institutes and municipal and county emergency management departments began to provide earthquake early warning services to the society in 2011, and were jointly established in 2014 to extend to 31 provinces in China The largest earthquake warning network in the world, covering an area of 2.2 million square kilometers, covering 90% (660 million people) of China’s earthquake zone population, serves major projects, hazardous chemical enterprises, primary and secondary schools, and communities. It has successfully warned of 57 destructive earthquakes including Lushan M7 earthquake, Ludian M6.5 earthquake, Jiuzhaigou M7 earthquake and Changning M6.0 earthquake.
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