2021 Maduo earthquake

2021 Maduo earthquake
2021 Maduo earthquake is located in China
2021 Maduo earthquake
2021 Maduo earthquake is located in Qinghai
2021 Maduo earthquake
UTC time2021-05-21 18:04:13
ISC event620437814
USGS-ANSSComCat
Local date22 May 2021
Local time02:04 (China Standard Time)
Magnitude7.4 Mw
7.4 Ms
Depth17 km (11 mi)
Epicenter34°35′10″N 98°15′18″E / 34.586°N 98.255°E / 34.586; 98.255
Areas affectedQinghai & Tibet, China
Total damage¥4.1 billion ($646 million USD)[1]
Max. intensityCSIS X[2][3]

MMI X (Extreme)[4]
AftershocksMultiple. Largest is an mb  5.5[5]
Casualties
  • 19 injured (official)[6]
  • 20 dead, 300 injured, 13 missing (anonymous source)[7]

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.[8] The earthquake had a moment magnitude and surface-wave magnitude of 7.4.[9][10][11][12] Highway bridges, roads and walls collapsed as a result of the earthquake.[13] According to an anonymous source, at least 20 people were killed, 300 were injured, and 13 were missing.[7] Officials stated that there were no deaths but 19 people sustained minor injuries.[14] It was the strongest in China since 2008.[15] It was assigned a maximum intensity of X in Machali, Maduo County on the China seismic intensity scale and Modified Mercalli intensity scale.[3] This earthquake was preceded by another unrelated earthquake that occurred 5 hours earlier in Yunnan.[16][17]

  1. ^ Yanyan Han; Yang Zang; Lingyuan Meng; Yue Wang; Shiguang Deng; Yawei Ma; Mengyu Xie (2022). "A summary of seismic activities in and around China in 2021". China Earthquake Networks Center. 2 (3): 100157. Bibcode:2022EaRA....200157H. doi:10.1016/j.eqrea.2022.100157. S2CID 250027593.
  2. ^ Zhang Ni (22 May 2021). "四、五月份是强震高发期？地震专家解析网友疑惑" (in Chinese). Xinhua Newspaper Network. Retrieved 23 May 2021.
  3. ^ a b Tang Guorong. "The Ministry of Emergency Management released the intensity map of the Qinghai Maduo M7.4 earthquake" (in Chinese). Beijing News. Retrieved 29 May 2021.
  4. ^ Wenkai Chen; Dun Wang; Can Zhang; Qiang Yao; Hongjun Si (2021). "Estimating seismic intensity maps of the 2021 Mw 7.3 Madoi, Qinghai and Mw 6.1 Yangbi, Yunnan, China earthquakes". Journal of Earth Science. 33 (4): 839–846. doi:10.1007/s12583-021-1586-9. S2CID 247246109.
  5. ^ "M 5.5 – Southern Qinghai, China". United States Geological Survey. Retrieved 30 May 2021.
  6. ^ Li Ning (27 May 2021). "19 people were injured and 17 people were discharged from hospital after the May 22 earthquake in Maduo, Qinghai" (in Chinese). Xinhua News Agency. Retrieved 31 May 2021.
  7. ^ a b "At Least 20 Dead, More Than 300 Injured in Qinghai Quake as China Imposes Information Lockdown". Radio Free Asia.
  8. ^ Yue Hongbin, Yan Jiaqi (22 May 2021). "青海省玛多县发生7.4级地震 西宁震感强烈". People's Daily. Retrieved 22 May 2021.
  9. ^ "Global CMT Catalog Search 202105211804A". globalcmt.org. Global Centroid-Moment-Tensor. 21 May 2021. Retrieved 22 November 2021.
  10. ^ "M 7.3 – Southern Qinghai, China". United States Geological Survey. Retrieved 21 May 2021.
  11. ^ "A magnitude 7.4 earthquake occurred in Maduo County, Guoluo Prefecture, Qinghai Province at 2:4 on May 22" (in Chinese). China Earthquake Administration. Retrieved 22 May 2021.
  12. ^ "M 7.4 – SOUTHERN QINGHAI, CHINA – 2021-05-21 18:04:14 UTC". European-Mediterranean Seismological Centre. 21 May 2021. Retrieved 2 November 2021.
  13. ^ "青海玛多7.4级地震 县城区域有围墙倒塌 救援队伍已集结". Sina Corp. 22 May 2021. Retrieved 22 May 2021.
  14. ^ "13 people were slightly injured in Qinghai Maduo earthquake". Xinhua News Agency. 22 May 2021. Retrieved 22 May 2021.
  15. ^ "Powerful earthquakes hit Chinese cities, 3 dead". newsonair.com. Archived from the original on 25 May 2021. Retrieved 25 May 2021.
  16. ^ "M 6.1 – 28 km NW of Dali, China". United States Geological Survey. Retrieved 21 May 2021.
  17. ^ Welle (www.dw.com), Deutsche. "China: Earthquakes shake northwestern, southwestern regions | DW | 21.05.2021". Deutsche Welle. Retrieved 25 May 2021.