日本地球惑星科学連合2022年大会

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[J] ポスター発表

セッション記号 S (固体地球科学) » S-SS 地震学

[S-SS12] 活断層と古地震

2022年5月30日(月) 11:00 〜 13:00 オンラインポスターZoom会場 (18) (Ch.18)

コンビーナ:小荒井 衛(茨城大学理学部理学科地球環境科学コース)、コンビーナ:白濱 吉起(国立研究開発法人産業技術総合研究所地質調査総合センター活断層火山研究部門活断層評価研究グループ)、佐藤 善輝(産業技術総合研究所 地質情報研究部門 平野地質研究グループ)、コンビーナ:吉見 雅行(産業技術総合研究所活断層・火山研究部門)、座長:小荒井 衛(茨城大学理学部理学科地球環境科学コース)、吉見 雅行(産業技術総合研究所活断層・火山研究部門)

11:00 〜 13:00

[SSS12-P09] Damaging earthquakes and meteotsunami in foreign settlements in the early Meiji period (1873-1884): Collection of seismic information from foreign-language newspapers in Japan

*服部 健太郎1 (1.京都大学)

キーワード:歴史地震、明治初期、英字新聞

Modern seismic nationwide observation in Japan began in 1885. Earthquakes prior to that time are generally referred to as historical earthquakes. In order to study historical earthquakes, it is important to collect records written by people of the time. In Japan, records of historical earthquakes on or before 1872 have been systematically collected, represented by "New collections of historical materials on earthquakes in Japan". Compared to the period, the historical sources of earthquakes from 1873 to 1884 have not systematically been collected.

In this study, we focus on foreign-language newspapers in Japan at that time such as "Japan Weekly mail" which started in Yokohama, Japan in 1870. These newspapers contain a lot of information about earthquakes felt in Japan, especially in Yokohama, Nagasaki, and Hakodate, where many foreigners resided.

Focusing on the period from 1873 to 1884, we searched the newspapers for earthquakes that caused damages to Yokohama, Nagasaki, and Hakodate. We introduce the three damaging earthquakes that are not seen in the earthquake catalogs. One on 3 December 1879, another on 22 May 1881, and the other on 5 November 1878 caused damages to Yokohama, Nagasaki, and Hakodate, respectively.

In addition, we also introduce an abnormal tidal phenomenon on 21 August 1877 in Nagasaki. The phenomenon may be a meteotsunami.