Our reporter Zhao Hanbin Sheng Li intern Li Di
According to China Seismic Network: At 21:47 on May 18, a magnitude 5.0 earthquake occurred in Xiaohe Town, Qiaojia County, Zhaotong City, Yunnan. As of 7 a.m. on the 19th, the earthquake has caused 4 deaths and 24 injuries. After the earthquake, before the arrival of the seismic wave, TV users in Yibin, Sichuan, Panzhihua, and Zhaotong, Yunnan received TV pop-up warnings.
After the earthquake, the officers and soldiers of the Zhaotong Detachment of the Armed Police rushed to the epicenter for rescue with professional rescue equipment. A spokesman for the Yunnan Provincial Earthquake Administration said at a press conference held in Kunming on the evening of the 18th that the Qiaojia earthquake was at a normal level of activity and recently ruled out the possibility of a larger earthquake.
As of 8:20 a.m. on the 19th, the Yunnan Provincial Earthquake Administration field team has dispatched 5 disaster assessment investigation teams to carry out disaster investigations in 5 townships in Qiaojia County and Ludian County; a mobile monitoring team was sent to the surrounding area of the epicenter Set up 3 sets of mobile seismometers and 3 sets of strong earthquake recorders to strengthen the monitoring capability. As of 17:15 on the 19th, the Yaoshan seismic mobile station of the field team of the Earthquake Administration of Yunnan Province was erected. According to the news ahead, the Liangzi villager group in Xiaohe Town, Qiaojia County was the place where the earthquake was the most severely damaged, and the collapse of the house occurred.
After the Qiaojia earthquake, many local netizens said that before the arrival of the earthquake wave, they could see the earthquake warning "pop-up warning" on the television several seconds or even tens of seconds in advance. The reporter of Science and Technology Daily learned that the provider of the TV early warning technology is the Chengdu High-tech Disaster Reduction Office located in the Chengdu High-tech Zone. Earthquake early warning refers to a technology that sends an alarm to the fortified area a few seconds to tens of seconds before the earthquake wave propagates to the fortified area after the earthquake occurs to reduce local losses.
Wang Yun, director of the Sichuan Provincial Key Laboratory of Earthquake Early Warning and director of the Chengdu High-tech Disaster Reduction Institute, said that on November 28 last year, with the authorization of the Zhaotong Emergency Management Bureau and with the support of Yunnan Radio and Television and Zhaotong Radio and Television, Zhaotong Radio and Television and The Institute has launched the TV Earthquake Early Warning Service. This service can be used to send out early warnings in the middle of the TV screen by the "big pop-up window" in the center of the TV screen, prompting the audience to count down the time and estimated strength of the arrival of the earthquake wave, and prompt The people are prepared to avoid danger and escape; they can remind the audience in the form of a "small pop-up window" in the lower right corner of the TV screen when a small earthquake occurs around the TV's location and play a role in calming people's hearts.
"In the earthquake, TVs with built-in early warning functions in Zhaotong City, Yunnan Province, Yibin City, Panzhihua City, Sichuan Province and other places issued early warnings. The specific early warning time is 9 seconds for Zhaoyang District of Zhaotong City and 3 seconds for Qiaojia County , Panzhihua City, 38 seconds early warning, Junbin County, Yibin City, 37 seconds early warning. "Wang said that in the future, he hopes to cooperate with governments and emergency departments in Yunnan, so that more people in the earthquake area receive earthquake warning information, and fully open earthquake warning applications "Last mile".