Seismological Bureau of China released the intensity map of Lushan 6.1 earthquake in Sichuan.

According to China Earthquake Administration official WeChat WeChat official account news on the 4th, at 17: 00 on June 1st, 2022, an earthquake of magnitude 6.1 occurred in Lushan County, Ya ‘an City, Sichuan Province (30.37 degrees north latitude, 102.94 degrees east longitude) with a focal depth of 17 kilometers. According to the deployment of the Emergency Management Department, the Seismological Bureau of China organized the Seismological Bureau of Sichuan Province, the Seismological Bureau of Chongqing and Guizhou provinces (cities) and relevant directly affiliated research institutes to form a field task force, and passed the earthquake damage investigation in the disaster area in accordance with "Earthquake Site Work Part 3: Investigation Specification" (GB/T 18208.3-2011) and "China Earthquake Intensity Table" (GB/T 17742-2020). The intensity distribution of this earthquake was determined by comprehensive application of scientific and technological support achievements such as instrument intensity, seismic tectonic background, aftershock distribution, focal mechanism, remote sensing image, etc., and the Intensity Map of Lushan, Sichuan (M 6.1) was compiled according to the Code for Mapping Seismic Intensity Map (GB/T 38226-2019).

Seismic intensity distribution

The highest intensity of this earthquake is ⅷ (8 degrees), and the major axis of the isoseismal line is northeast, with a major axis of 76 kilometers and a minor axis of 65 kilometers. The area of VI (6 degrees) and above is 3,887 square kilometers, mainly involving Lushan County, Baoxing County, tianquan county, Mingshan District, Yucheng District, Qionglai City and Dayi County in Chengdu, Sichuan Province.

The ⅷ degree (8 degree) area covers an area of 131 square kilometers, mainly involving Taiping Town and Shuangshi Town in Lushan County, Ya ‘an City, Sichuan Province, Lingguan Town and Muping Town in Baoxing County, totaling 4 towns.

The VII degree (7 degree) area covers an area of 979 square kilometers, mainly involving Taiping Town, Dachuan Town, Baosheng Township, Shuangshi Town, Luyang Street, Longmen Town, Muping Town, Lingguan Town, Fengtongzhai Township, Wulong Township, Longdong Town and Daxi Township in Baoxing County, Sichuan Province. Tiantaishan Town, Qionglai City, Chengdu, has a total of 13 townships (streets).

The VI degree (6 degree) area covers an area of 2,777 square kilometers, mainly involving Dachuan Town, Luyang Street, Longmen Town, Feixianguan Town, Siyan Town and Baosheng Township in Lushan County of Ya ‘an City, Longdong Town, Fengtongzhai Township, Wulong Township, Lingguan Town, Daxi Township, Qiaoqi Tibetan Township, Muping Town in Baoxing County, and xiaohe town, tianquan county. There are 38 towns (streets) in Tiantaishan Town, Datong Town, Huojing Town, Jiaguan Town, Nanbaoshan Town, pingle town Town, Linji Town, Sangyuan Town, Huashuiwan Town, Xiling Town and Jiangzhen Town in Dayi County.

In addition, some areas outside the VI degree (6 degree) zone have also been affected, and some old houses have been damaged.

This figure relates to noun interpretation.

ⅷ degree (8 degrees): a few wooden houses were seriously damaged, and most of them were moderately damaged and slightly damaged; A few houses with brick-concrete structure were seriously damaged and destroyed, and most of them were moderately damaged and basically intact; A few houses with frame structure are moderately damaged, and most of them are slightly damaged and basically intact.

ⅶ degree (7 degrees): a few wooden houses are moderately damaged, most are slightly damaged and basically intact; Brick-concrete structure houses are moderately damaged, mostly slightly damaged and basically intact; A few houses with frame structure are slightly damaged and moderately damaged, and most of them are basically intact.

VI degree (6 degrees): a few wooden houses are slightly damaged and moderately damaged, and most of them are basically intact; Brick-concrete structure houses are slightly damaged and moderately damaged, and most of them are basically intact; A few or a few houses with frame structure were slightly damaged, and most of them were basically intact.