2024-03-28T18:54:37Z
https://repository.dl.itc.u-tokyo.ac.jp/oai
oai:repository.dl.itc.u-tokyo.ac.jp:00032040
2022-12-19T04:08:24Z
80:4411:4412
9:504:4413:4414
Aftershock Observation of the Izu-Hanto-oki Earthquake of 1974 : At Omaezaki Station
1974年伊豆半島沖地震の余震観測報告 : 御前崎観測点
笠原, 順三
71046
飯塚, 進
71047
安藤, 忠次
71048
門, 竜二郎
71049
椎名, 達
71050
行方, 和夫
71051
松井, 豊次
71052
佐木, 和夫
71053
051.1
An earthquake occurred at the tip of Izu Peninsula having M=6.9, at 08:33 on May 9th, 1974. Many buildings were destroyed, and twenty-nine persons were killed. Aftershock observation was carried out at Omaezaki in Shizuoka Prefecture. Many aftershocks and a small number of local earthquakes (S-P=about 5 seconds) were observed. The hypocenters for the latter could not be determined because no other station detected their shocks. Large travel time anomaly existed. The arrival time was usually 1.5 seconds later than the arrival expected. This anomaly may have been due to thick sediments. under the station, or the velocity model used in the present study.
1974年伊豆半島沖地震調査概報
departmental bulletin paper
東京大学地震研究所
1974-09
application/pdf
地震研究所研究速報
14
77
81
AN10165194
https://repository.dl.itc.u-tokyo.ac.jp/record/32040/files/jis0140009.pdf
jpn