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

在静冈县海岸以南至纪井半岛的海域，每隔100年左右就会发生一系列被称为东海地震的板块间大地震。另一方面，在纪井海峡和四国岛以南海域，作为东海地震的耦合地震，又发生了一系列被称为南开地震的大地震。1703年的元禄大地震和1611年的庆町三陆大地震属于另一个板块间大地震系列。在本研究中，我们试图厘清这些历史上的板块间大地震的特征。在本研究中，我们对数百年来由京都和伊势市的牧师和贵族保存的许多日记中所记录的地震进行了研究。研究了特大地震的发生与震感频率变化的关系。我们在博索半岛沿岸的两处寺庙中发现了记载1605年启町地震的古抄本，以此来厘清其特征。众所周知，中构造线（MTL）从本州岛中部开始，经过四国岛北部，到达九州岛中部，但在这条线上没有发生过地震。我们发现，1596年在四国北部爱姬县发生了一次强烈的地震，与本吾地震发生在同一天，而在圭町福见地震发生的第二天。这一事实表明，这三次地震都是由MTL的作用引起的。在本研究中，我们对历史和史前地震海啸的地质证据溯源进行了研究。阐明了有组织火山活动海啸沉积的特征。我们还在爱知县赤多半岛海岸发现了第三纪海啸的痕迹。我们编辑了《海啸》一书，并于2008年由荷兰阿姆斯特丹爱思唯尔出版社出版。我们所有的地质研究成果都包含在这本书里。少

In the sea region south off the coasts of Shizuoka to Kii peninsula, a series of inter-plate gigantic earthquakes called Tokai Earthquake occurred in the intervals of about 100 years. On the other hand, in the sea region south off Kii straits and Shikoku island, another series of gigantic earthquake called Nankai earthquakes occurred as coupled earthquakes of Tokai earthquake. The 1703 Genroku Earthquake iand the 1611 Keicho Sanriku-Oki earthquake belong to another series of inter-plate gigantic earthquakes. In the present study, we tried to clarify features of those historical inter-plate gigantic earthquakes. In the present study we made research on felt earthquakes recorded in many diaries kept in Kyoto city and Ise city by priests and noblemen for more than several hundred years. We examine the relationship between the occurrence of gigantic earthquakes and change of frequency of felt earthquakes. We found out old manuscripts describing the record of the 1605 Keicho earthquake at t … More wo temples on the coast of Boso Peninsula, by which we clarify the feature of it. It is well known that the Median Tectonic Line (MTL) runs from the central Honshu Island, passing the north part of Shikoku Island and reaches the central part of Kyushu Island, but no earthquake had been known on this line. We found out that an eminent earthquake occurred at Ehime Prefecture, Northern part of Shikoku in 1596, in the same day as the Bungo earthquake and in the next day of the Keicho Fushimi Earthquake. This fact suggests that all those three earthquakes were induced by the action of MTL.In the present study, we made research on tracing geological evidence of historical and pre-historical earthquakes-tsunamis. We clarified the characteristics of tsunami deposit of volcanic activity organized one. We also found out tsunami traces in the Tertiary period on the coast of Chita peninsula, Aichi prefecture. We edited the book "TSUNAMIITE" and published by Elsevier Press, Amsterdam, Netherlands in 2008. All of our geological results are contained in this book. Less