2016年和2022年青海门源地震数据集

祁连山断裂带是青藏高原东北部最活跃的断裂带之一，特别是海原断裂带，历史上曾发生过多次Mw 7-8的破坏性地震。2022年1月8日，祁连山东北缘，青海省门源县发生Mw 6.7地震，对当地交通基础设施造成严重破坏。在过去大约35年里，门源地区发生了三次Mw~6地震。本数据集基于GF-7和Sentinel-1卫星遥感影像数据。对GF-7卫星影像正射校正、影像融合、拼接和裁剪等处理后，通过目视解译识别了2022年门源地震的地表破裂带。基于InSAR技术，对Sentinel-1 SAR影像处理获得了2016年和2022年门源地震的同震形变场。本数据集期望有助于对青海门源地震的研究，以及未来区域内断裂活动特征和地震危险性评估进行探讨。

The Qilian Mountains Fault Zone is one of the most active fault zones in the northeastern Tibetan Plateau. The Haiyuan Fault Zone, a key segment of this zone, has hosted multiple destructive earthquakes with moment magnitude (Mw) 7–8 in its history. On January 8, 2022, an Mw 6.7 earthquake occurred in Menyuan County, Qinghai Province, at the northeastern fringe of the Qilian Mountains, inflicting severe damage to local transportation infrastructure. Over the past ~35 years, three earthquakes with approximate Mw 6 magnitude have been documented in the Menyuan region. This dataset is built upon remote sensing imagery acquired by the GF-7 and Sentinel-1 satellites. After processing the GF-7 imagery with orthorectification, image fusion, mosaicking and cropping, the surface rupture zone of the 2022 Menyuan earthquake was identified via visual interpretation. Using InSAR technology, coseismic deformation fields for the 2016 and 2022 Menyuan earthquakes were retrieved by processing Sentinel-1 SAR images. This dataset is intended to support research on the 2022 Menyuan earthquake in Qinghai Province, and to advance future investigations into fault activity characteristics and seismic hazard assessment in this region.

搜集汇总

背景与挑战

背景概述

该数据集聚焦于2016年和2022年青海门源地震事件，基于GF-7和Sentinel-1卫星遥感影像，通过正射校正和InSAR技术处理，提供了地表破裂带和同震形变场数据，空间分辨率分别为0.67米和30米，数据大小为2.79 GB。数据集旨在支持对门源地震的研究，包括断裂带活动特征和地震危险性评估，共享方式为开放获取，便于学术使用。