1. Dodaira Micro-earthquake Observatory has been mailing the seismological interpretations to USCGS (now NOAA) and cooperated in its routine service of the Preliminary Determination of Epicenters. The interpretations have been also published as Pre- liminary Seismological Bulletins since 1967 to date. The detection capability of the P arrival times at the stations DDR (Dodaira), TSK (Tsukuba Telemeter) and KYS (Kiyosumi Telemeter) during 1967-1968 is summarised here. The interpretation is mainly done by using the short period vertical component seismograms recorded on a 4 channel parallel trace ink-writing oscillograph with minute time mark channel. The interpretations at SRY (Shiroyama), the 4th station of the R.T.S. (Radio Telerecording Seismograph) network were sent to USCGS but they are not investigated in this report. For DDR direct filter sum out-put of short period vertical seismometers at the 6 separated vaults within about 1.5 km distance is used for the weak teleseismic signals. Short period vertical filter seismograph out-puts at TSK are also helpful in the interpretation especially for the body wave magnitude data.
雑誌名
地震研究所研究速報
巻
10
号
4
ページ
5 - 24
発行年
1973-03
書誌レコードID
AN10165194
日本十進分類法
051.1
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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堂平微小地震観測所に属する堂平、筑波および清澄各観測点のP波到着時刻の検知能力
jis0104002.pdf
(1.04MB)
