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The (Mythical) M 8.2 Off Coast of Peru Earthquake of 12 December 1908

机译:1908年12月12日秘鲁地震海岸的(神话)米8.2

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摘要

Global earthquake catalogs covering the early twentieth century differ in their listings of a large earthquake, or earthquakes, on 12 December 1908. Some catalogs list an M similar to 7 earthquake originating in northern Myanmar (Burma) at similar to 1255 UTC on that date. Other catalogs do not list the Myanmar origin but list an earthquake with magnitude 8.2 originating in or near Peru at 12:08 UTC on the date. Some catalogs list both origins, but sometimes with additional evidence suggesting that the 1908 M 8.2 Peru origin may be "mythical." In a review of arrival times of phases reported in seismic bulletins of 1908, conducted specifically to identify data that might be consistent with the sometimes-cataloged Peru origin, we do not find a coherent set of such data. Many bulletin arrival times reported for 12 December 1908, however, are mutually consistent with the cataloged Myanmar origin. Comparisons of seismograms recorded at the Seismological Observatory of Gottingen in Germany (station GTT) on 12 December 1908 with seismograms obtained on the same instruments for later large earthquakes that are reliably located in Myanmar and Peru, respectively, are consistent with the implication of the bulletin arrival-time observations. We conclude that a major earthquake did indeed occur in or near northern Myanmar on 12 December 1908 but that there was not on that date a great earthquake near Peru that would correspond to the sometimes-cataloged M 8.2 Peru origin.
机译:覆盖二十世纪初的全球地震目录在1908年12月12日的大地震或地震中不同。一些目录列出了类似于缅甸北部的7地地震(缅甸)的地震,类似于1255 UTC。其他目录未列出缅甸原产地,但列出了在日期的12:08 UTC的8.2幅度8.2的地震。一些目录列出了两个起源,但有时有其他证据表明1908年M 8.2秘鲁起源可能是“神话”。在1908年的地震公报中报告的阶段的阶段的到来审查中,专门进行了识别可能与有时编目的秘鲁起源一致的数据,我们没有找到一系列相干的这些数据。然而,许多公告抵达时间于1908年12月12日报告,与编目的缅甸原产地相互一致。 1908年12月12日在德国的Gottingen地震天文台上记录的地震图(Station GTT)的地震图分别在同一仪器中获得的地震图分别在缅甸和秘鲁可靠地获得的同一仪器,这与公报的含义一致到达时间观察。我们得出结论,1908年12月12日,缅甸北部北部的一个主要地震确实发生了,但没有在秘鲁附近的巨大地震,这将与有时编目的M 8.2秘鲁起源相对应。

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