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Historical Seismograms - Evidence from the AD 2000 Izu Islands ...

Historical Seismograms - Evidence from the AD 2000 Izu Islands ...

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442 Yasuhiro Umeda and Katsuyoshi It0FormatOriainal Seisrnoararn Smoked DaDerPaper speed : 30rnm/,inuteStation, Seismograph, A- or B- plane, Year-Data on hour, min., month, dayData off hour, min,33mmOriginal record length of I minuteTime : JST ( Japanese Standard Time )UTC = J ST - 9hourFigure 4. Microfilming format and label.1933 Wi echert _ _ - Seismoarams Abuvama Seis. Obs.1 Month 1 Jan. I Feb 1 Mar 1 April 1 May I June I July I Aug I Sep I oct 1 Nov 1 Decno data, two seismograms per day, calibratlwl seismogramFigure 5. An inventory sheet.

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