A magnitude 6.0 earthquake hit changning county, yibin city, sichuan province, and the early warning system took effect in time

A 6.0-magnitude earthquake occurred in changning county, yibin city, sichuan province at 22:55 on June 17, at a depth of 16 kilometers, according to the China earthquake network.An aftershock of about 3.6 magnitude was felt around changning county at 2309 hours.

According to the emergency management department, 12 people were killed and 125 injured in the quake as of 8:30 p.m. Monday.At present, rescue teams from all sides quickly gathered to the earthquake zone, water, food, tents, quilts and other relief supplies have arrived in the affected areas.

According to preliminary statistics from chengdu gaoxin disaster reduction institute, 13 regions, including chengdu and yibin, which have radio and TV earthquake warnings, issued TV earthquake warnings when the earthquake struck.Through TV, mobile phone, special earthquake warning terminal and other channels, 10 seconds in advance warning to yibin city, 31 seconds in advance warning to bijie city, guizhou province, 124 km from the epicenter, 61 seconds in advance warning to chengdu.

"Earthquake warning" is the use of electromagnetic waves than seismic waves "run faster" advantage, in advance of the earthquake signal to the surrounding area.Studies show that a 10-second warning reduces casualties by 39 percent;Time: 20 seconds, casualties reduced by 63%.According to video screenshots taken by many netizens, the earthquake warning information was broadcast on TV before the earthquake happened, and the arrival time of the shear wave was accurate to seconds.The city of chengdu also broadcast a reminder, the last 10 seconds of the broadcast also carried on the countdown, reminding the masses to take precautions in advance.

At present, the mainland earthquake warning network covers an area of 2.2 million square kilometers, covering 90% of the population in China's earthquake zones. 52 destructive earthquakes, including the magnitude-7 lushan earthquake, the magnitude-6.5 ludian earthquake and the magnitude-7 jiuzhaigou earthquake, have been successfully warned.As of May 28 this year, the network's radio and television warnings had been extended to 13 cities and prefectures in sichuan province, covering 79 districts and counties, accounting for 60 percent of the quake-hit areas in sichuan province.