Mapping of detailed distribution of seismic intensities and estimation of fault parameters for historical earthquakes in Japan

出版了日本历史地震资料系列丛书(东京大学地震研究所，1981-1994年)。该丛书共22卷，总页数约1.6万页。在本研究中，我们根据这套丛书中编撰的旧文献的描述建立了一个数据库。我们处理了一次伴随地震的事件的描述作为单位信息，并在该数据库中制作了一张电子卡片。我们在现在的地图上识别了旧文件中描述的每个历史地名，并将它们绘制在城市地图上。我们最终得到了几次历史大地震的地震烈度详细分布图。我们绘制了两次板间巨型地震的详细地震烈度图：目前在东京江户市区发生的1703年元老南关东地震和1854年在静冈县发生的安塞东海地震。We a…More LSO获得了几次板内地震的详细地震烈度图，例如1662年的北近基地震、1854年的安塞伊贺-上野地震等。此外，我们还阐明了几次历史地震的海啸抬升高度的分布，并估计了它们的断层机制。我们发现，在伊豆半岛东海岸的伊藤市，由于1703年元鲁地震的海啸，海水上升到平均海平面以上17米的水平。我们还得到了1677年Enpo Boso-Oki地震海啸的上升高度分布图。我们利用海啸的潮汐测量仪记录估计了1938年福岛大地震的断层位置和大小。2004年12月26日，印度尼西亚苏门答腊岛北部西部海域发生9.0级特大地震。伴随而来的海啸几乎席卷了印度洋的所有海岸，总共造成约28万人死亡。就在这次事件发生后，我们对苏门答腊岛北部海岸进行了实地考察研究。调查结果的报告也包含在本研究中，因为它是一种像1707年的河内地震一样的节理巨型地震，被认为是东海地震和南开地震的联合地震。较少

A series of books of collection of material for the historical earthquakes in Japan was published (Earthquake Research Institute, University of Tokyo, 1981 to 1994). This series consists f 22 volumes of books, which contain about 16,000 pages in total. In the present study we made a database on the bases of descriptions of old documents compiled in this series of books. We dealt with a description of one event accompanied with an earthquake at one point as unit information, and made an electronic card in this database. We identified each historical place name described in old documents on the present maps, and mapped them on the city maps. We finally obtained maps of detailed distribution of seismic intensity for several large historical earthquakes. We made the detailed maps of seismic intensities for two inter-plate gigantic earthquakes ; the 1703 Genroku South Kanto earthquake in the city zone of Edo, Tokyo at present, and the 1854 Ansei Tokai earthquake in Shizuoka Prefecture. We a … More lso obtained the detailed seismic intensity maps for several intra-plate earthquakes, for examples, the 1662 north Kinki earthquake, the 1854 Ansei Iga-Ueno Earthquake, and the so on. In addition we clarified distributions of tsunami run-up heights for several historical earthquakes and estimated fault mechanisms of them. We found out that sea water rose up to the level of 17 meters above mean sea level in the city area of Ito, on east coast of Izu peninsula, by the tsunami of the 1703 Genroku earthquake. We also obtained the map of distribution of run up heights of the tsunami of the 1677 Enpo Boso-Oki earthquake. We estimated the location and the size of the fault of the 1938 Fukushimaken Oki earthquake by using tide gauge records of the tsunami. A huge earthquake (M9.0) broke out in the western sea region of the northern part of Sumatra Island, Indonsia on 26th December, 2004. The accompanied tsunami hit almost all coasts of Indian Ocean and about 280 thousands people were killed in total. Just after this event we made a field survey research on the coast of the north part of Sumatra Island. The report of the result of the survey also contained in the present study, as it was a kind of jointed gigantic earthquakes like the 1707 Hoei earthquake, which is considered a joint earthquake of the Tokai and the Nankai earthquakes. Less