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Integrated geospatial system for seismic hazard assessment in Vrancea area, Romania

机译：罗马尼亚Vrancea地区用于地震灾害评估的综合地理空间系统

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Geospatial information forms the basis for comprehensive seismic risk assessments and better-informed mitigation planning, disaster assessment and response prioritization. Mainly due to the subcrustal earthquakes located at the sharp bend of the Southeast Carpathians, Vrancea zone in Romania is considered one of the most seismically active area in Europe, having a relatively high potential of seismic hazard, being placed at conjunction of four tectonic blocks which lie on the edge of the Eurasian plate. Integrated in situ monitoring seismological, geologic, geophysics, satellite (IKONOS; LANDSAT TM and ETM, SAR-ERS 1/2, ASTER) and GPS data provide a better monitoring of different geophysical -geochemical parameters and long-term deformation in relation with earthquake activity.Multispectral and multitemporal satellite images over a period 1975-2007 have been analyzed for recognizing the continuity and regional relationships of active faults as well as for geologic and seismic hazard mapping. GPS Romanian network stations data revealed a displacement of about 5 or 6 millimeters per year in horizontal direction relative motion, and a few millimeters per year in vertical direction. As Vrancea area has a significant regional tectonic activity, the joint analysis of geospatial and in-situ geophysical information is revealing new insights in the field of hazard assessment.
机译：地理空间信息构成了全面地震风险评估和更明智的减灾计划，灾难评估以及响应优先级的基础。主要由于位于喀尔巴阡山脉东南部急弯处的亚地壳地震，罗马尼亚的弗朗塞区被认为是欧洲地震活动最活跃的地区之一，具有相对较高的地震危险性，并与四个构造块一起放置。躺在欧亚板块的边缘。集成的原位监测地震，地质，地球物理，卫星（IKONOS； LANDSAT TM和ETM，SAR-ERS 1/2，ASTER）和GPS数据可更好地监测与地震有关的不同地球物理地球化学参数和长期变形分析了1975-2007年期间的多光谱和多时相卫星图像，以识别活动断层的连续性和区域关系，以及进行地质和地震灾害制图。 GPS罗马尼亚网络站的数据显示，水平方向相对运动每年大约位移5到6毫米，垂直方向每年大约位移几毫米。由于Vrancea地区具有重要的区域构造活动，因此对地理空间和原位地球物理信息的联合分析正在揭示危害评估领域的新见识。

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