環境保護 科學家擔憂 地球自轉速度...

科學家擔憂 地球自轉速度減慢 強震將增加

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【新三才訊】科學家警告說,由於地球自轉速度變慢,更強大的地震可能在2018年造成地球震盪。

這似乎是相互矛盾的,但多年來地球自轉的速度變慢,可以將一天的時間延長一毫秒或更長,似乎與主要地震的增加有關。

科羅拉多大學的羅傑·比爾漢姆(Roger Bilham)和蒙大拿大學的麗貝卡·本迪克(Rebecca Bendick)表示,自1900年以來的歷史數據清楚地表明,全球主要的地震活動與地球自轉的輕微減緩有五六年的“強烈”聯繫。大約每32年發生一次。根據研究人員的說法,如果這種模式繼續下去,未來一年強震的數量可能會增加三倍。

科學家在一篇文章中指出:“在過去的一個世紀裡,曾經有五次地震的年增長率達到7.0%或更多,而地球的平均旋轉速度正在減緩。研究摘要。他們最近在美國地質學會的會議上介紹了他們的發現。

科學家們認為,從歷史上看,大多數的地震是與西部和東部印度赤道附近的地球自轉速度相關的。自從1900年以來,包括2010年海地地震在內的東加勒比板塊邊界的所有重大地震中,80%以上發生在地球自轉“最大程度減速”的五年後。

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