@article{oai:soar-ir.repo.nii.ac.jp:00011898,
 author = {井内,  美郎 and 衣笠,  善博 and 公文,  富士夫 and 安松,  貞夫 and 中野,  聴志 and 志岐,  常正},
 journal = {地質学論集},
 month = {Mar},
 note = {Sediments and other geological materials retain evidences for paleoearthquakes for longer time than historical earthquakes. We estimate the ages of some　20　turbidites　within　3 meters of the lake bottom based on sedimentation rates at four drilled stations. In addition, We calculate the intensities of historical earthquakes in the vicinity of the lake based on the empirical equations among intensity, epicentral distance and earthquake magnitude. We show that the ages of turbidites coincide with the ages of paleoearthquakes for which estimated intensities are higher than the middle of　Ⅳ in Japan Meteorological Agency's(JMA) Scale, whose acceleration is equivalent to lower limit of Ⅶ in the Modified Mercalli (MM) Scale. This result indicates that turbidites are valid criteria for paleoearthquake, providing in addition an estimation of intensity., 琵琶湖の西岸付近の湖底堆積物には肉眼で確認される砂層以外にもシルトを主とする細粒の粒子からなる湖底地滑りを起源とする堆積物が多くはさまれている.これらのタービダイトの堆積年代を重量堆積速度を基に推定した結果,歴史地震と対応する事が明らかになった.湖底地滑りを起こした地震の震度の下限値は,琵琶湖においてほ気象庁震度階のⅣとVのそれぞれの下限値の中間である.この震度を加速度表示した場合,約44galに相当する.これはMM震度階のⅥとⅦの境界の加速度に相当する., Article, 地質学論集 39: 61-70(1993)},
 pages = {61--70},
 title = {古地震の震度指示者としての琵琶湖タービダイト},
 volume = {39},
 year = {1993}
}