Review of Historical Damages Due to Intermediate and Deep Focus Earthquakes

「 0 Generation ofthe high − frequency wave for intem】ediate − depth earthquakes in and around Hokkaido re臼on is estimated ffOm the source SpeCtr ／ d in the frequency rangO fivm 1 to IOHz The average stress drop A σ that is calculated ffom the high− frequemncy fiat level of acceleration source spoctra is ・ about 30MPa for the down −dip−ex ［ ensien type earthqualces ． while it is ahr 〕 ut 8MPa f( ) r the subduCtion type earthquakes ． Vhriation of ri (た oflhe down ｛lip − ex1ension type ea 曲 quakes is meaningfUlly smaller than that of the sUbduCtion type earthquakes ． As fi 〕 r the downdip − eXtensien 紅 ype earthquakes ， Aσ of large earthquakes coincides Wi巳 h the upper level of 山 ose ofsmaH ea曲 quakes ．、糠りπ ts ' sttvng 〃vatim4 intemtedintedepth earthquakq high− V ｝ equency ， sotcrte sperm

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Review of Historical Damages Due to Intermediate and Deep Focus Earthquakes

Cited by 2 publications

References 8 publications

EXCITATION STRENGTHS AND THEIR REGIONAL VARIATION OF HIGH-FREQUENCY STRONG MOTIONS DUE TO INTERMEDIATE DEPTH EARTHQUAKES : Estimation based on observed peak ground accelerations

EXCITATION STRENGTHS AND THEIR REGIONAL VARIATION OF HIGH-FREQUENCY STRONG MOTIONS DUE TO INTERMEDIATE DEPTH EARTHQUAKES : Estimation based on observed peak ground accelerations

Generation of the High-Frequency Wave for Intermediate-Depth Earthquakes in and Around Hokkaido Region From Strong Motion Records

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