At 23:59 on December 18, a 6.2-magnitude earthquake occurred in Jishishan County, Linxia Hui Autonomous Prefecture, Gansu Province. According to Xinhua News Agency at about 7 o'clock, up to now, the earthquake has killed 100 people in Gansu and 11 people in Qinghai, and damaged some infrastructure such as water, electricity, transportation, and communications.
The national earthquake emergency response has been upgraded to Level 2
The National Health Commission has appointed a working group to guide and support medical emergencies
In view of the severity of the disaster, the State Council Earthquake Relief Headquarters and the Ministry of Emergency Management have upgraded the national earthquake emergency response to Level 2, and the National Disaster Prevention, Mitigation and Relief Committee and the Ministry of Emergency Management have upgraded the national disaster relief emergency response to Level 3.
According to the official website of the National Health Commission, the National Health Commission urgently dispatched comrades in charge of medical emergency work and national experts in critical care, orthopedics, neurosurgery, and general surgery from Peking Union Medical College Hospital and West China Hospital of Sichuan University to Gansu.
After the accident, the Gansu Provincial Health Department immediately launched an emergency response, and immediately directed the dispatch of 33 ambulances and other professional vehicles and 173 medical personnel to the scene to carry out the treatment and transport of the wounded. Qinghai Province dispatched 68 ambulances and more than 40 provincial and municipal experts to carry out rescue at the scene. As of 6:30 a.m. on December 19, more than 300 injured people had been admitted to the disaster area, and the National Health Commission guided the establishment of a joint expert group to consult with local medical personnel to treat the wounded, investigate hidden injuries one by one, and formulate a diagnosis and treatment plan for one person and one policy, and make every effort to treat the injured. The National Health Commission will dispatch additional medical treatment forces at any time according to the needs of treatment, so as to ensure the safety and health of the people in the disaster area to the greatest extent.
According to the Gansu Provincial Emergency Management Department, with the consent of the Gansu Provincial Government, the Gansu Provincial Earthquake Relief Headquarters launched the Gansu Provincial Earthquake Level II Emergency Response.
At present, more than 1,300 emergency rescue forces and more than 180 rescue vehicles have been mobilized to the scene. The first batch of relief materials is being delivered to the disaster area with 100 cotton tents, 400 folding beds, 400 quilts, 400 cotton mattresses, 500 cotton coats, and 100 sets of stoves.
In addition, after the earthquake, the Qinghai Provincial Earthquake Relief Headquarters launched a level IV emergency response to the earthquake disaster, and the relevant departments directly under the provincial government immediately formed a working group to rush to the scene to carry out rescue and rescue.
There were many earthquakes in the middle of the night
The maximum magnitude was 6.2
According to the China Earthquake Network, at 23:59 on December 18, a 6.2-magnitude earthquake occurred in Jishishan County, Linxia Prefecture, Gansu Province (35.70 degrees north latitude, 102.79 degrees east longitude), with an epicenter depth of 10 kilometers. The average altitude within 5 kilometers of the epicenter is about 2,793 meters.
According to the China Earthquake Network Quick Report, as of 06:00 on December 19, a total of 275 aftershocks were recorded, including 9 aftershocks of magnitude 3.0 and above, including 0 earthquakes of magnitude 6.0-6.9, 0 earthquakes of magnitude 5.0-5.9, 2 earthquakes of magnitude 4.0-4.9, 7 earthquakes of magnitude 3.0-3.9, and 266 aftershocks of magnitude below 3.0.
The earthquake was felt in Lanzhou, Gansu, Chengdu, Sichuan, Xi'an, Shaanxi, Wuzhong, Ningxia, and Xining, Qinghai.
Mr. Bai, a resident living in Jishishan County, told reporters in the early morning of the 19th that most of the residents had fallen asleep when the earthquake occurred, and after the earthquake, he ran out of his room and saw debris falling from buildings on the street, "Many people are also taking refuge in the open area on the street." ”
Ms. Hou, a citizen of Lanzhou, told reporters in the early morning of the 19th that she had just gone to bed and was about to go to bed when the earthquake occurred, and suddenly felt a more obvious sense of shaking. "The furniture in the house creaked during the earthquake, and it was scary. After the first wave of earthquakes, I looked out of my window and saw that many citizens had run out into the streets, but because the temperature was too cold and I lived on more than 20 floors, I stayed indoors, and then there were several small earthquakes intermittently. Ms. Hou said that by about 0:50 a.m., she saw that most of the people who had run from her room to the street had returned.
Expert: This earthquake is a thrust rupture
The China Earthquake Network Center organized experts to study and analyze the seismic activity near Jishi Mountain in Gansu Province, which is located in the southeast of Gansu, about 3 kilometers away from the fault on the northern margin of the nearest fault, Lazhi Mountain. The preliminary results of the focal mechanism solution show that the earthquake is a thrust rupture.
The Gandongnan active tectonic zone is located in the northern part of the north-south seismic zone of China, and is an important component area of the northeastern margin of the Qinghai-Tibet Plateau. Due to the long-term compression of the Eurasian plate and the Indian plate, the area has strong tectonic activity, and many deep and large faults have been developed, such as the East Kunlun fault, the North Margin of the West Qinling Ridge fault, the Lintan-Danchang fault, the Guanggaishan-Dieshan fault, the Diebu-Bailongjiang fault, the Tazang fault, the Minjiang fault, the Xueshan fault, and the Huya fault.
Within 200 kilometers of the epicenter of this earthquake, there have been three earthquakes of magnitude 6 or higher since 1900, all of which were isolated or mainshock-aftershock earthquakes. As of 04:00 on December 19, 2023, a total of 9 aftershocks of magnitude 3.0 and above were recorded, including 7 earthquakes of magnitude 3.0-3.9, 2 earthquakes of magnitude 4.0 or above, and the largest earthquake of magnitude 4.1 occurred at 0:59 on the 19th.
According to the results of the comprehensive consultation of historical earthquakes, seismic sequence attenuation characteristics, and earthquake precursor data, it is preliminarily judged that this earthquake is a mainshock-aftershock earthquake, and the aftershock attenuation is basically normal. The earthquake department is further following up closely.
Netizens in many places received early warnings
Gansu, Sichuan, Beijing,
Netizens in Hebei and Tianjin said
An earthquake warning was received
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编辑 | 张芷莹 责编 | 张秀丽
Integrated Sources | Xinhua News Agency, CCTV News, China News Network, Guangzhou Daily, Southern Metropolis Daily, Xinhuanet, Red Star News, etc
Produced by the Guangdong Health Online all-media team