Inland large scale active faults ruptured with great earthquake in historical time and associated crustal movements

近畿地区分布着在历史上曾发生过大地震的内陆大型活动断层，断层地貌清晰。详细描述了这些断裂的形态、具体位置、地质等。以及与之相关的地壳运动也得到了明确。由于活动断裂的下降盘发育湖泊和冲积低地，对这些矿床的岩芯样品进行了火山灰年代学等测年方法分析，获得了断裂活动和地壳变形的时间尺度。特别是在别府湾和琵琶湖的底部。许多研究人员对地震断层进行了详细的实地观察，并编制了一份附有精确位置图（比例尺1：2，500）的清单。主要地表断层的分布、位移量。累积地形表现等。野岛断层的挖掘研究主要是为了揭示Nashimoto断层事件的年龄和复发间隔。北丹镇。淡路岛活动断层系统。对1995年兵库县南部地震的断层进行了野外调查，并从地貌学的角度分析了断层的活动性和特征。沉积学和年代测定方法。在低地沿沿着进行了多次钻探测量。通过对所取岩心样品的岩性和测年研究，阐明了这些活动断裂的活动性和断裂行为。结合地体年代学，阐明了晚第四纪的活动。利用摄影解译方法，绘制了六廓山南侧冲积平原活动断层的分布图。地震反射和钻探测量。

Inland large scale active faults, which have produced great earthquakes in historical time, well distribute in Kinki area, and accompany clear fault topography. The morphology, detailed location, geology etc.of these faults have been described in detail. and related crustal movements have been clearified. As the lake and alluvial lowlands develop in down-thrown sid of active faults, core samples of these deposits were analyzed by using tephro-chronological and other dating methods for getting the time scale of faulting and crustal deformation. especially in the bottoms of Beppu Bayand Lake Biwa.Detailed field observations for the seismic faults have been described by many researchers and compiled as a list with precise location maps (scale 1 : 2,500). Distribution of major surface faults, amount of displacement. cumulative topographic expression etc.were summarized by these surveys. The excavation study for the Nojima fault has been aimed principally at revealing ages of faulting event and recurrence intervals at Nashimoto. Hokudan Town. Awai Island.The Rokko-Awaji active fault system. which produced the 1995 Hyogoken Nanbu carthquake.has been surveyed in the field.and their fault activity and character were analyzed by the geomorphological. sedimentological and dating methods. Many drilling surveys were carried out along the lowland. And the activity and behaviors of faulting for these active faults were clarified by investigating the lithology and dating for the core samples obtained. The activity during the late Quaternary has been clarified with relation to the terracc choronology. The distribution of active faults bencath the alluvial plainalong the south side of the Rokko Mountains has been mapped by photo-interpretation. seismic reflection.and driling surveys.