China News Service, Chengdu, June 4th (Reporter Liu Zhongjun) The China Earthquake Administration released the intensity map of the 6.1-magnitude earthquake in Lushan County, Sichuan Province on the 4th. The area is 131 square kilometers.
It is understood that the so-called earthquake intensity reflects the degree of damage to structures such as the ground and houses, including damage to buildings and changes in natural landscapes.
The intensity of our country is divided into 12 grades, the higher the grade, the heavier the damage.
The maximum intensity of the Lushan M6.1 earthquake is VIII degree (8 degrees), the long axis of the isoseismic line is northeast, the long axis is 76 kilometers, the short axis is 65 kilometers, and the VI degree (6 degree) area and above covers an area of 3887 square kilometers, mainly involving To Lushan County, Baoxing County, Tianquan County, Mingshan District, Yucheng District of Ya'an City, Sichuan Province, as well as Qionglai City and Dayi County of Chengdu City, a total of 7 counties (cities, districts) and 40 townships (streets), including Ya'an There are 29 towns (streets) in the city and 11 towns (streets) in Chengdu.
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, a total of 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, Lushan County, Ya'an City, Sichuan Province, Muping Town, Lingguan Town, Baoxing County , Fengtongzhai Township, Wulong Township, Longdong Town, Daxi Township; Tiantaishan Town, Qionglai City, Chengdu, a total of 13 towns (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, Baosheng Township, Lushan County, Ya'an City, Longdong Town, Baoxing County, and Fengtong Township. Zhai Township, Wulong Township, Lingguan Town, Daxi Township, Qiaoqi Tibetan Township, Muping Town, Xiaohe Town, Renyi Town, Xinhua Township, Chengxiang Town, Shiyang Town in Tianquan County, Wangu Town and Zhongfeng Town in Mingshan District , Mengdingshan Town, Baizhang Town, Heizhu Town, Mengyang Street, Xindian Town, Shangli Town, Bifengxia Town, Yucheng District; Tiantaishan Town, Datong Town, Huojing Town, Jiaguan Town, Qionglai City, Chengdu City, Nanbaoshan Town, Pingle Town, Linji Town, Sangyuan Town, Huashuiwan Town, Xiling Town, and Jiang Town in Dayi County, a total of 38 towns (streets).
Some areas outside the Ⅵ degree (6 degree) zone were also affected, and some old houses were damaged and damaged.
It is reported that the 6.1 magnitude earthquake in Lushan County, Ya'an City has experienced the 2008 Wenchuan magnitude 8.0 earthquake and the 2013 Lushan magnitude 7.0 earthquake.
After the earthquake, landslides, collapses, rolling stones and other geological disasters can be seen everywhere. Landslides and rolling stones caused 4 deaths and many injured.
The magnitude 6.1 earthquake was strong and felt strong, and the buildings basically did not collapse. Thanks to the continuous efforts in poverty alleviation, restoration and reconstruction, resettlement and relocation for many years to strengthen the supervision of the earthquake-resistant fortification safety of houses, the houses have foundations and structures. Basic seismic measures such as columns and ring beams have been adopted, and the seismic capacity of houses has been generally improved.
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