新疆拜城<i>M</i><sub>S</sub>5.4地震无人机遥感快速灾情获取与分析

李金香; 谭明; 孙甲宁; 吴国栋; 赵江涛; 李波

doi:10.11899/zzfy20220420

新疆拜城M_S5.4地震无人机遥感快速灾情获取与分析

doi: 10.11899/zzfy20220420

新疆维吾尔自治区地震局, 乌鲁木齐 830011

基金项目: 新疆地震科学基金（202109）

详细信息

作者简介:
李金香，女，生于1984年。高级工程师。主要从事地震应急与遥感震害监测研究。E-mail：ljxhappy365@163.com

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出版历程
- 收稿日期: 2021-12-03
- 刊出日期: 2022-12-31

UAV Remote Sensing Information Acquisition and Analysis of M_S5.4 Earthquake in Baicheng County, Xinjiang

Earthquake Agency of Xinjiang Uygur Autonomous Region,Urumqi 830011, China

摘要

摘要: 以2021年3月24日新疆维吾尔自治区阿克苏地区拜城县M_S5.4地震为例，利用无人机进行灾区航拍，结合现场调查完成灾区地表破裂情况、建筑物毁坏程度、道路毁坏程度无人机遥感灾情获取与分析。研究结果表明，此次拜城地震产生长约5 km的地表破裂带，主破裂带具有左旋走滑特征，与主压应力场方向一致；受地震动、地表破裂、场地类型及土壤成分等因素影响，地表破裂带周边老旧砖木结构房屋不同程度受损，乡村道路不同程度破坏；此次地震造成的地表破裂和震害分布情况受断裂带控制。
- 地震 /
- 遥感影像 /
- 无人机 /
- 灾情获取
Abstract: Taking the M_S5.4 earthquake in Baicheng County, Aksu District, Xinjiang Uygur Autonomous Region on March 24, 2021 as an example, this study uses UAV to take aerial photos of the disaster area, and completes UAV remote sensing information acquisition and analysis of the surface rupture, building damage and road damage in the disaster area combined with field investigation. The results show that the Baicheng earthquake causes a surface rupture zone with a length of about 5 km, the main rupture zone has the characteristics of sinistral strike slip, which is consistent with the direction of the main compressive stress field; Affected by ground motion, surface rupture, site type, soil composition and other factors, the old brick and wood structure houses around the surface rupture zone are damaged to varying degree, and the rural roads are damaged to varying degree. The distribution of surface rupture and earthquake damage caused by the Baicheng earthquake is controlled by the fault zone.
- Earthquake /
- Remote sensing image /
- UAV /
- Disaster acquisition

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图 1 震区位置、地形地貌

Figure 1. Earthquake location and topography map

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图 2 无人机航拍范围及航线

Figure 2. UAV aerial photography range and route map

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图 3 灾区无人机正射影像图

Figure 3. Orthophoto map of UAV in disaster area

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图 4 地表破裂带的空间分布和分段特征

Figure 4. Spatial distribution and segmentation characteristics of surface rupture zone

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图 5 地表破裂带附近开挖探槽

Figure 5. Trench excavation near surface fracture zone

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图 6 地表破裂带无人机影像与现场调查对比

Figure 6. Comparison between UAV image and field investigation in surface rupture zone

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图 7 房屋建筑无人机影像与现场调查对比

Figure 7. Comparison between UAV image of house building and field investigation

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图 8 转移安置点无人机航拍影像

Figure 8. Aerial image of UAV at transfer resettlement site

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图 9 交通系统无人机影像与现场调查对比

Figure 9. Comparison between UAV image of traffic system and field investigation

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表 1 拜城M_S5.4地震震源机制解参数

Table 1. Focal mechanism solution parameters of the Baicheng M_S5.4 earthquake

节面Ⅰ/°			节面Ⅱ/°			震级/M_W	深度/km	产出机构	震源机制解
走向	倾向	滑动角	走向	倾向	滑动角	震级/M_W	深度/km	产出机构	震源机制解
341	75	180	71	90	15	5.2	12	CENC
160	82	55	253	65	9	—	—	CEA-IGP
340.41	84.77	−176.43	250.08	86.44	−5.24	—	—	万永革研究员课题组
160	77	167	253	77	12	5.2	13	GFZ

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