核爆発実験に伴つて発生した地震波及び微気圧波の, 長週期地震計による観測

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書誌事項

タイトル別名
  • Observations of Seismic and Microbarometric Waves Produced by Nuclear Explosions
  • カク バクハツ ジッケン ニ ハンツテ ハッセイ シタ ジシン ハキュウビ ビキアツハ ノ チョウ シュウキ ジシンケイ ニ ヨル カンソク

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抄録

The seismic waves due to the great nuclear explosions in the central Pacific Ocean (Bikini Atoll) in June and July 1958 were recorded by routine seismographs at the Abuyama Seismological Observatory of Kyoto University.<br>The remarkable result was that we found a new kind of wave-group which has the following properties on the records of long-period seismograph. The wave in this group is of a period 9 to 1 minute and its propagation velocity is about 300m/s. The arrival time is about 3 hours later than that of seismic P-wave. These properties are similar to those of the microbarographic oscillations produced by the nuclear explosions, and the phenomena can hence be attributed to the effect of atmospheric pressure fluctuations upon the inertia mass of the seismograph.

収録刊行物

  • 地震　第２輯

    地震　第２輯 13 (4), 210-218, 1960

    公益社団法人 日本地震学会

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