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| magnitude = 7.5 Ms 〔 | damage = $4 million USD | depth = | location = 〔 | countries affected = Puerto Rico | tsunami = Yes | aftershocks = 14 | intensity = | casualties = 116 〔 }} The 1918 San Fermín earthquake,〔(Millie Gil. ''A 92 años del Terremoto de San Fermín, 1918.'' Mayaguez Sabe a Mango. 17 October 2010. )〕 also known as the Puerto Rico earthquake of 1918, struck the island of Puerto Rico at 10:15 am on October 11. The magnitude for the earthquake measured 7.5 on the surface wave magnitude scale and level IX on the Rossi–Forel scale. The main-shock epicenter occurred off the northwestern coast of the island, somewhere along the Puerto Rico Trench. The earthquake triggered a tsunami with waves measured that swept the west coast of the island. The combined effects of the earthquake and tsunami made it one of the worst natural disasters that have struck the island. The losses resulting from the disaster were approximately 116 casualties and $4 million in property damage (about $62,000,000 dollars in 2015 money currency). ==Earthquake== The epicenter of the 1918 Puerto Rico earthquake was located in the Mona Passage off the northwestern coast of the island, somewhere along an old left-lateral strike-slip fault. The strongest ground shaking has been estimated at intensity IX on the Rossi–Forel scale. The resulting tsunami affected primarily the west coast towns of the island (primarily Mayaguez). 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「1918 San Fermín earthquake」の詳細全文を読む スポンサード リンク
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