UTC time | 2022-01-07 17:45:30 |
---|---|
ISC event | 621668769 |
USGS-ANSS | ComCat |
Local date | 8 January 2022 |
Local time | 01:45 CST (UTC+8) |
Magnitude | 6.6 Mw 6.9 Ms [1] |
Depth | 13 km (8.1 mi) |
Epicenter | 37°48′40″N101°16′30″E / 37.811°N 101.275°E |
Fault | Haiyuan Fault |
Areas affected | China |
Max. intensity | CSIS IX [2] MMI IX (Violent) [1] |
Casualties | 9 injured |
On January 8, 2022, a magnitude 6.6 earthquake struck Menyuan County, Qinghai Province near the border with Gansu Province, China. [3] [4] [5] It was the largest earthquake in China since the 2021 Maduo earthquake. [6]
The earthquake occurred as a result of shallow (10 km depth) strike-slip faulting at the northeastern Tibetan Plateau. It ruptured a fault located near the Qilian Mountains. The geological structure responsible was the Lenglongling Fault, a segment of the Haiyuan Fault System. The rupture was mostly confined to 0–8 km within the upper crust. A maximum slip of 3.5 m was estimated at 4 km depth. [7] Surface ruptures were observed for a length of 22 km, and the maximum surface displacement was 2.1 m. The evaluated maximum Modified Mercalli intensity was IX (Violent) near the rupture zone. Intensity VI (Strong) was felt over an area of at least 23,417 km2. [1]
By January 17, 2022, at least 584 aftershocks were recorded, and the largest measured Mw 5.3. The aftershocks were distributed along a 40 km-long zone trending east–west. Many were detected at depths of 7–14 km, beneath the main rupture area. Only a few aftershocks were detected within 5 km of the crust. [7]
The earthquake damaged at least 137 homes and collapsed two walls in Zhangye. [8] Four people in Menyuan Hui Autonomous County suffered minor injuries while evacuating. [3] In total, nine people were reported to be injured, eight of them were discharged from hospitals by the following day. [9]
Some bridges and tunnels on the Lanzhou–Xinjiang high-speed railway sustained serious damage and traffic was halted until repairs could be completed. [10] The Great Wall of China was also damaged by the quake. A 2 m (6 ft 7 in) section of the wall in Shandan County, built during the Ming Dynasty, collapsed. As of January 2022, repair and restoration work on this section was underway. [11]
The 1556 Shaanxi earthquake, known in Chinese colloquially by its regnal year as the Jiajing Great Earthquake "嘉靖大地震" or officially by its epicenter as the Hua County Earthquake "华县地震", occurred in the early morning of 2 February 1556 in Huaxian, Shaanxi during the Ming dynasty.
The 1920 Haiyuan earthquake occurred on December 16 in Haiyuan County, Ningxia Province, Republic of China at 19:05:53. It was also called the 1920 Gansu earthquake because Ningxia was a part of Gansu Province when the earthquake occurred. It caused destruction in the Lijunbu-Haiyuan-Ganyanchi area and was assigned the maximum intensity on the Mercalli intensity scale. About 258,707-273,407 died, making it one of the deadliest earthquakes in China and disasters in China by death toll.
The 2008 Panzhihua earthquake struck southern Sichuan province, China on August 30 at 16:30:50.5 China Standard Time with a surface-wave magnitude of 6.1, or 6.0 Mw. It is also cited as the Renhe-Huili earthquake, especially in SCEA reports and early CEA reports. It was not an aftershock of the Sichuan earthquake that occurred several months prior. With more than 400 aftershocks, it caused over 40 deaths, the collapse of 10,000 homes and damage to other infrastructure in the provinces of Sichuan and Yunnan. The maximum liedu was VIII.
The 2010 Yushu earthquake struck on April 14 and registered a magnitude of 6.9 Mw or 7.1 Ms. It originated in Yushu, Qinghai, China, at 7:49 am local time. According to the Xinhua News Agency, 2,698 people were confirmed dead, 270 missing and 12,135 injured, 1,434 of them severely. The epicenter was located in Rima village (日玛村/日麻村), Upper Laxiu township (上拉秀乡) of Yushu County, in remote and rugged terrain, near the border of Tibet Autonomous Region, about 30 km from Gyêgu town or Jyekundo, the seat of Yushu County, and about 240 km from Qamdo. The epicenter was in a sparsely populated area on the Tibetan plateau that is regularly hit by earthquakes.
The 2014 Ludian earthquake struck Ludian County, Yunnan, China, with a moment magnitude of 6.1 on 3 August. The earthquake killed at least 615 people, injuring at least 2,400 others. At least 114 people remained missing. Over 12,000 houses collapsed and 30,000 were damaged. According to the United States Geological Survey, the earthquake occurred 29 km (18 mi) west-southwest of Zhaotong city at 16:30 local time (08:30 UTC).
The 2014 Kangding earthquake struck Kangding County, Garzê Tibetan Autonomous Prefecture, Sichuan, China, with a moment magnitude of 5.9 on 22 November. The earthquake killed five and injured 54 people.
The Lanzhou–Xinjiang high-speed railway, also known as Lanzhou–Xinjiang Passenger Railway or Lanxin Second Railway, is a high-speed railroad in Northwestern China from Lanzhou in Gansu Province to Ürümqi in the Xinjiang Uyghur Autonomous Region. It forms part of what China designates the Eurasia Continental Bridge corridor, a domestic high-speed railway corridor running from the city of Lianyungang in Jiangsu to the Kazakh border. The line is also shared with conventional trains.
The 2017 Jiuzhaigou earthquake occurred on 8 August 2017, in Zhangzha Town, Jiuzhaigou County, Ngawa Prefecture, Sichuan Province, China. The earthquake was registered at Ms 7.0 and killed at least 25 people in the mountainous region of northern Sichuan.
The 2017 Jinghe earthquake occurred at 07:27 China Standard Time on 9 August 2017, in Jinghe County, Bortala Mongol Autonomous Prefecture, Xinjiang Uyghur Autonomous Region, China, with magnitude 6.6 and depth 11 kilometres. The epicentre was 44.27°N 82.89°E. Most cities in northern Xinjiang felt the quake. This earthquake occurred on the Tian Shan seismic zone. There was no direct relationship to the earthquake in Jiuzhaigou County that occurred the previous day.
The Haiyuan Fault is a major active intracontinental strike-slip (sinistral) fault in Central Asia.
The 1973 Luhuo earthquake struck near the town of Zhaggo in Garzê Tibetan Autonomous Prefecture of Sichuan Province, China on February 6, 1973, with a magnitude of 7.6 Ms. The earthquake had a maximum intensity of X (Extreme) on the Modified Mercalli intensity scale. It resulted in between 2,175 and 2,204 deaths and a further 2,743 injuries. Serious and widespread destruction occurred in Luhuo County.
The 1902 Turkestan earthquake devastated Xinjiang, China, near the Kyrgyzstan border. It occurred on August 22, 1902, at 03:00:22 with an epicenter in the Tien Shan mountains. The thrust earthquake measured 7.7 on the moment magnitude scale (Mw ) and had a depth of 18 km (11 mi).
The 1990 Gonghe earthquake occurred on April 26 at 17:37 China Standard Time in Hainan Tibetan Autonomous Prefecture, Qinghai Province. The mainshock had a surface wave magnitude of 7.0 Ms and a moment magnitude of 6.5 Mw . It was presaged by two foreshocks that struck merely seconds before the main earthquake. On the Mercalli intensity scale, the earthquake had a rating of IX (Violent).
On May 21, 2021, a 6.1 magnitude earthquake struck the Dali City, Yunnan, China, at a depth of 10.0 km. Three people died during the quake, while another 32 were injured. The earthquake was referred by the Chinese media as the 5.21 earthquake or 2021 Yangbi earthquake.
The 2021 Maduo earthquake, also known as the 5.22 earthquake struck Madoi County in Qinghai Province, China on 22 May at 02:04 local time. The earthquake had a moment magnitude and surface-wave magnitude of 7.4. Highway bridges, roads and walls collapsed as a result of the earthquake. According to an anonymous source, at least 20 people were killed, 300 were injured, and 13 were missing. Officials stated that there were no deaths but 19 people sustained minor injuries. It was the strongest in China since 2008. It was assigned a maximum intensity of X in Machali, Maduo County on the China seismic intensity scale and Modified Mercalli intensity scale. This earthquake was preceded by another unrelated earthquake that occurred 5 hours earlier in Yunnan.
The 2021 Luxian earthquake was a damaging seismic event occurring in the early hours of September 16 at 04:33 China Standard Time. The surface-wave magnitude (Ms ) 6.0 or moment magnitude (Mw ) 5.4 earthquake struck at a shallow depth of 7.5 km and severe shaking in an area of 4,000 square kilometers was assigned a maximum intensity of VIII on the China seismic intensity scale. Three people were killed and 146 injured when the earthquake struck Lu County, Luzhou, Sichuan Province. At least 36,800 buildings were affected, 7,800 of them seriously damaged or completely destroyed, causing about a quarter of a billion dollars worth of damage.
On June 1, 2022, a moment magnitude (Mw ) 5.8 or surface-wave magnitude (Ms ) 6.1 earthquake struck Lushan County in Ya'an, Sichuan Province, China. At least four people were killed and 42 were injured. The earthquake had a maximum intensity of VIII on the China seismic intensity scale, causing damage to many homes and triggering rockslides.
A Mw 6.7 earthquake struck Luding County in Sichuan province, China on 5 September 2022 at 12:52:19 local time. The epicenter was located 226 km (140 mi) from Chengdu, or 43 km (27 mi) southeast of Kangding. Ninety-three people died, 424 were injured and 24 remained missing. More than 13,000 homes and other infrastructure were damaged or destroyed. It was the largest earthquake to strike the province since 2017.
On 18 December 2023 at around 23:59:30 CST, an earthquake with a magnitude of 5.9–6.2 struck Jishishan County, in Gansu Province, China. The shallow thrust faulting earthquake struck a densely populated area on the border between the provinces of Gansu and Qinghai. One hundred and fifty-one people died and 982 others were injured. This made it China's deadliest earthquake since the 2014 Ludian earthquake.
On 23 January 2024, at 02:09 CST, a Ms 7.1 or Mw 7.0 earthquake occurred in Uqturpan County, also known as Wushi County, in Xinjiang, China, near the border with Kyrgyzstan.