人体感覚にもとづく震度報告により和歌山県下の地震活動状況を調査した結果,和歌山より御坊にいたる海岸地方がもつとも活動的であり,日高川中流,富田川上流および日置川流域にそれぞれやや活動的な場所が推定された.また県の南東部および北東部には局地的地震が非常にすくないこともわかつた.気象庁の地震観測網による験測はこのような局地地震に対してはきわめて不充分であり,区内観測所の震度報告に依存することがおおきいのでその確実な運用がのぞまれる.
In the central part of Wakayama Prefecture we often observe an earthquake felt, seismic waves from which are not recorded by the seismographs at two routine seismological stations situated on the northern and southern extremities of the Prefecture, i.e. Wakayama and Sionomisaki Weather Stations. Such earthquakes are either very shallow local shocks or rather deep small earthquakes, of which the latter are often recorded at a few stations outside the Prefecture. On the other hand, the former, being recorded at no seismological station, might have been missed from our earthquake catalogue, if they were not reported from the substations entrusted with intensity report by J. M. A. at many places in the Prefecture. Consequently, if we wish to know the seismicity of such local earthquakes, we must not only depend upon published seismometrical data, but also consult the intensity reports obtained throughout the region.
雑誌名
東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo
巻
37
号
4
ページ
593 - 608
発行年
1960-01-30
ISSN
00408972
書誌レコードID
AN00162258
フォーマット
application/pdf
日本十進分類法
453
出版者
東京大学地震研究所
出版者別名
Earthquake Research Institute,University of Tokyo
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