标题： 使用ALOS-1和ALOS-2监测门多尔群岛地震空区的构造形变 显示英文标题

标题： Monitoring of tectonic deformation in the seismic gap of the Mentawai Islands using ALOS-1 and ALOS-2

摘要： 自2000年Mentawai逆冲带区域最后一次发生强烈地震以来，没有记录到显著的地震事件，根据地震重复周期，这表明该区域可能是未来地震的潜在震中。该区域的南半部和北半部曾发生过震级大于8.0的强烈地震；然而，在Mentawai群岛的潜在位置，地震能量尚未释放。这项研究显示了由于板块推挤而发生的构造活动、速度和位移。这些信息是估计尚未释放能量的地震震中的重要参考。我们根据合成孔径雷达数据和大地测量全球定位系统观测分析了构造特征。结果表明，Pagai群岛正在经历一致的构造变形。North Pagai的北部地区和South Pagai的北部地区正在经历显著沉降，而North Pagai的西南（SW）地区和South Pagai的南部地段正在经历显著隆起。政府和当地当局可以利用这些信息作为制定灾害准备策略的指导。 显示英文摘要

摘要： Ever since the last occurrence of a significant earthquake in the Mentawai megathrust zone in 2000, no significant earthquake events have been recorded, which, according to the earthquake repetition cycle, suggests that the zone is a potential epicenter of future earthquakes. The southern and northern parts of the zone have been struck by a significant earthquake with magnitude M > 8.0; however, in the potential location of the Mentawai Islands, earthquake energy has not been released. This research shows the tectonic activity, velocity, and shift that occurred owing to the thrust of the plate. The information is a vital reference for estimating the epicenter of the earthquake whose energy has not yet been released. We analyzed the tectonic characteristics according to the synthetic aperture radar data and geodetic global positioning system observations. The results show that the Pagai Islands are experiencing consistent tectonic deformations. The northern region of North Pagai and the Northern region of South Pagai are experiencing significant subsidence, while the southwest (SW) region of North Pagai and the south segment of South Pagai are experiencing significant uplift. The government and local authorities can use this information as a guide for developing strategies for disaster preparation.