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

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:;13264 S. Prachuab0 .me.0 . .eeee0e ee ee ee e*eee-eee e e e11900 1920 lYl0 1960 108UYEARFigure 8. Time variation of earthquake occurrence.4 5 6 7 a 9MAG N I TU D EFigure 9. Magnitude-frequency distribution.
Historical Earthquakes of Thailand, Burma, and Indochina 265By using b-value, a-value can be determined by using the formula of Welkner(1965) as follows:a = log N(M15.0) + log(b In 10) + 5.0 b (3)where N(M>5.0) is the number of earthquakes having magnitude 5.0 or more.The annual number of earthquakes can be calculated theoretically by dividing Nby the period of observation, To. Puttingthe annual frequency of earthquake is equal toa1 = a - log To, (4)the mean return period is equal to4. Results and ConclusionFrom the magnitude-frequency analysis, the values of a and b are 6.654 and 0.75respectively. This means that there are about 54,000 earthquakes having magnitudegreater than zero and ten earthquakes having magnitude greater than 5.0 occurringannually in this region on the average. The value of b obtained in this paper agreeswell with S. Hattorri's (1974) result.Table 3 lists the mean return period (per month) and the frequency (per year)for earthquakes in the magnitude range 5.0 to 7.5. Figure 10 shows the relationbetween magnitude and the mean return period. It can be seen that an earthquakehaving magnitude 5.0 may occur approximately every month for this area, but forthe earthquakes having magnitude 7.0 and 7.5, the recurrence periods are 3 and 8years respectively.In conclusion, the above analysis of historical earthquake data indicates that theregion encompassing Thailand, Burma and Indochina is one of the seismically activezones of the world.Table 3. Mean Return Period and Frequency of Earthquakesfor Magnitude 5.0 to 7.5Magnitude Return period Frequency(Mb) (month) (Per year)5 .O 1.2 9.6595.5 2.9 4.0736 .Q 7.0 1.7186.5 16.6 0.7247 .O 39.3 0.3057.5 93.0 0.129
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Historical SeismogramsandEarthquake
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ToJames F. Landerfor his leadership
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viContentsThe Status, Importance, a
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...VlllEarthquake History of Califo
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XMicrofilming of Historical Seismog
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PrefaceA symposium on Historical Se
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I. Introduction
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4 W. H. K. Lee, H. Meyers, and K. S
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6 W. H. K. Lee, H. Meyers, and K. S
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8 W. H. h‘. Lee, H. Meyers, and K
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10 W. H. K. Lee, IT. Meyers, and K.
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12 W. H. K. Lee, H. Meyers, and K.
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14 W. H. K. Lee, H. Meyers, and K.
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IMPORTANCE OF HISTORICAL SEISMOGRAM
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18 Hiroo KanamoriTable Ib. Some Lar
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-60'1 1904-1985-M, >8.01II\I'.iPlus
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22 Hiroo Kanamorievents often have
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~~~24 Hiroo KanamoriThatcher et al.
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26 Hiroo Kanamo riIf relatively com
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28 Hiroo Kanamori9. Difficulties in
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30 Hiroo KanamoriNagamune, T. (1971
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32 Hiroo KanamoriI I I I I1000100z
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11. Analysis of Historical Seismogr
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38 Kat su y uki A beaddition to thi
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42 Katsuyuki Abe20:oow19:302-I--Ia
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44 Katsuyuki AbeIn the present stud
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46 Katsuyuki AbeTable 3. Sinkiang E
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~48 Katsuyuki AbeSieh (1978) and ot
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50 Katsuyuki AbeREFERENCESAbe, K. (
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52 E. Hurtig and G. KowalleFRG'.L.-
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54 E. Hurtig and G. Kowalle2.2 Reco
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56 E. Hurtig and G. KowalleREFERENC
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58 N. V. Kondorskaya and Yu. F. Kop
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THE STATUS, IMPORTANCE, AND USE OFH
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66 Ota Kulhdnek1 8 35lo. r 1s ' 20
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68 Ota Kulhdnek1 UPP EW SEP 9 1954
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ANALYSIS OF HISTORICAL SEISMOGRAMS
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72 S. K. Singhfrom Uppsala. We also
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74S. K. SinghN1 1Oaxaca-X .-x x- x
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76S. K. SinghESKUPPWIECHERT ELPZ A-
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78 S. K. SinghJdFJ-22 Feb 1943Ms=7.
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80 S. K. SinghDE BlLT (DBN) Z$I = 3
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82 S. K. Singh7. The Great Jalisco,
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84 S. K. SinghREFERENCESAbe, K. (19
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86 S. Stein, E. A. Okal and D. A. W
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94S. Stein, E. A. Okal and D. A. Wi
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96S. Stein, E. A. Okal and D. A. Wi
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100 S. Stein, E. A. Okal and D. A.
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RECENT ACTIVITIES AT THE INTERNATIO
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S.S. Felt and Damaging EarthquakesI
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In t e r na tio n a1 Se is mo logic
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1. IntroductionCatalogue of Chinese
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Catalogue of Chinese Earthquakes (M
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Catalogue of Chinese Earthquakes (A
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Catalogue of Chinese Earthquakes (A
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DATA BASES ON HISTORICAL SEISMICITY
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Data Bases on Historical Seismicity
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COMPILATION AND PROCESSING OF HISTO
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Compilation and Processing of Histo
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The U. S. Geological Survey’s Dat
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The U. S. Geological Survey's Datab
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~ ~The U. 5‘. Geological Survey
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The U. S. Geological Survey’s Dat
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Catalog of Large and Damaging Earth
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YCatalog of Large and Damaging Eart
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YM D h m1918 2 9 20 461918 2 13 6 7
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His to ric al Mate ria Is of Chine
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Historic a1 Mate rials of Chinese E
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Historical Materials of Chinere Ear
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His t o r ical Mate rials of Chin e
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IV. Individual Historical Earthquak
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174 N. N. Ambraseys and C. F. Finke
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182 N. N. Arnbraseys and C. P. Melv
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184 N. N. Ambraseys and C. P. Melvi
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188 N. N. Arnbraseys and C. P. Melv
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202G. E. Fiedler B.FI1 IFigure 1. T
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204 G. E. Fiedler B.Figure 3. The S
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206 G. E. Fiedler B.Origin time Epi
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EVALUATION OF DAMAGE AND SOURCE PAR
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2 10 D. Muiioz and A. Udias3. Evalu
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212 D. Muiioz and A. Udias3 wFigure
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Page 230 and 231: 216 D. Muioz and A. UdiasTable 2. D
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Page 237: V. Earthquake History
Page 240 and 241: 226 M. DeBecker and T. CamelbeeckAt
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Page 244 and 245: 230 M. DeBecker and T. Camelbeeek10
Page 246 and 247: DOCUMENTING NEW ZEALAND EARTHQUAKES
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Page 250 and 251: 236 G. A. EibyImmediate practical p
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Page 254 and 255: 240 G. A. Eibywith near-earthquake
Page 256 and 257: 242 Pao Hua Lee120 121 122 123Figur
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Page 260 and 261: Pa0 Hua LeeTable 2. Major Earthquak
Page 262 and 263: 248 Pao Hua LeeTable 2. (Continued
Page 264 and 265: 250 Pao Hua Lee‘. . . an earthqua
Page 266 and 267: 252 Pao Hua LeeREFERENCESCentral We
Page 268 and 269: 254 S. Prac h ua b21I151 O0IFigure
Page 270 and 271: 256 S. PrachuabTable 1. 12 Seismic
Page 272 and 273: 258 S. Prac h u a bTable 2. (Contin
Page 274 and 275: 260S. Prachuab94" 96" 98" 1 ooo2ac2
Page 276 and 277: 262 S. Prachuab.17 MAY 1955EMrliCUA
Page 280 and 281: 266 S. Prac hua b005 6 7MAGNITUDEFi
Page 282 and 283: 268 T. R. Toppozada, C. R. Real, an
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Page 290 and 291: STUDY OF HISTORICAL EARTHQUAKES IN
Page 292 and 293: 278 Tatsuo Usarni(3) Documents publ
Page 294 and 295: 280 Tatsuo Usarnin5nlob0D KyotoKama
Page 296 and 297: 282 Tatsuo Usami:.:.., ........ L,/
Page 298 and 299: 284 Tatsuo Usami(2) A tsunami attac
Page 300 and 301: 286 Tatsuo Usami1897lntenrLFigure 6
Page 302 and 303: ~ ~~~~288 Tatsuo UsamiTable 4. Occu
Page 304 and 305: 290 R. G. Valenzuela and L. C. Garc
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Page 308 and 309: ~ ~~294 R. G. Valenzuela and L. C.
Page 310 and 311: 296 R. G. Valenzuela and L. C. Garc
Page 312 and 313: 298 R. Muir Wood, G. Woo, and H. Bu
Page 323 and 324: MAGNITUDE-FAULT LENGTH RELATIONSHIP
Page 325 and 326: APPLICATIONS OF FUZZY MATHEMATICSIN
Page 327 and 328: Applications of Fuzzy Mathematics 3
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Applications of Fuzzy Mathematics 3
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Applications of Fuzzy Mathematics 3
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Applications of Fuzzy hluthematics
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ON THE SEISMICITY OF THE MIDDLEASTS
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uca,m a,kma,.IY kfi30 uhd
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On the Seismicity of the Middle Eas
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On the Seismicity oj the Middle Eas
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HISTORICAL SEISMICITY AND EARTHQUAK
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Historical Seismic it y and Earthqu
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fIistorica1 Seismicity and Earthquu
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Historical Seismicity and Earthquak
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PATTERN ANALYSIS OF SMALL EARTHQUAK
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Pattern Analysis of Small Earthquak
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Earthquakes and Deep Fracture Zones
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--_-Earthquakes and Deep Fracture Z
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HISTORICAL SEISMOGRAM FILMING PROJE
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~~Historical Seismogram Filming Pro
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Historical Seismogram Filming Proje
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Historical Seismogram Filming Proje
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Filming Seismograms and Related Mat
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Digitization and Processing of J.M.
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SOME REMARKS ON HISTORICAL SEISMOGR
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Historical Seismograms and the Micr
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~~~~Historical Seismograms and the
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His torical Se is mogru ms and the
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Historical Sezs mogra ms and the Ma
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H1s t o rical Seismograms a nd the
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Historical Seismograms in China 42
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424 Kezin Qua History of Chinese Se
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428 Kexin Qu8. Plans for the Near F
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430 0. Ye. Starovoita station, its
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DAT ANDTHE STANDARDIZATION OF SEISM
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434 Y. Tamura, H. Sasaki, M. Ooe, a
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~ So.i436 Y. Tarnura, H. Sasaki, M.
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438 Y. Tarnura, H. Sasaki, M. Ooe,
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440 Yasuhiro Umeda and Katsuyoshi I
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442 Yasuhiro Umeda and Katsuyoshi I
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HISTORICAL SEISMOGRAMS IN ITALYR. C
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Historical Seismograms in Italy 449
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HISTORICAL SEISMOGRAMS FROM AUSTRAL
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His to rical Se is mog ra ms From A
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SEISMOGRAMS MADE BEFORE 1963 AT STA
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2. New ZealandSeismograms Before 19
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Seismograms Before 1963 in the Sout
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Seismograms Before 1963 in the Sout
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Historical Seismograms Recorded in
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Hist orieal Se is mograms Reeo rded
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THE HISTORICAL SEISMOGRAMS OF COLOM
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The Historical Seismograms of Colom
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Helwan Historical Seismograms 475Al
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Se is mo log ic a1 Mea s use me n t
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Seismological Measurement an Hong K
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A BRIEF HISTORY OF THE SEISMOLOGICA
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History of the Seismological Observ
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~~ ~ ~ ~~ ~ ~~Historical Seismogram
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494 Sergio S. Su, S. J.Figure S. Se
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496 Sergao S. Su, S. J.Figure 7. Ce
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498 K. L. SuendsenDominican Republi
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INDEXAAbuyama Seismological Observa
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Index 503China, see also Taiwan466
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Indez505HIHalin seismograph, 421Haw
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Index 507Karuizawa, 417Kobe, 117, 1
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Index 509PPacific Ocean1943 Malpelo
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Index 511Sri Lanka, Colombo station
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Index 513Wood-Anderson seismographW
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