[新聞] 狂震1129次!氣象署:餘震將持續半年、不排除仍有規模6.5地震
狂震1129次!氣象署:餘震將持續半年、不排除仍有規模6.5地震
NOWnews 記者莊蕙如/台北報導
花蓮強震迄今20天餘震超過1129起,昨傍晚到今(23)日更發生2起規模超過6的地震,氣象
署表示,根據九二一地震經驗,不排除餘震仍會持續半年到1年,不過未來應不會再有超
過規模7或6.5餘震,若有較大餘震可能會是規模6.5以下。
根據氣象署統計,403花蓮規模7.2強震後至今天上午9點07分,已發生1129起地震,其中
規模6到7地震就有2起,規模5到6地震也有21起,規模4到5地震有72起,規模3到4地震則
有85起,總計顯著有感地震為88起,小區域地震92起。
中央氣象署地震測報中心主任吳健富表示,如此頻繁的地震代表能量密集釋放,過去餘震
集中震央北邊,能量釋放完後,應力調整,換地震較少的南端以比較大的形式釋放能量。
吳健富表示,規模7.2地震不會短時間透過餘震釋放完,經九二一地震經驗,半年到一年
都可能發生餘震,但後面餘震會慢慢縮小,但仍會有較大餘震。
不過吳健富指出,以規模7.2地震且是主震來說,若再有較大規模餘震,應該會在規模6.5
以下,不過像2011年日本曾發生規模7.0地震,後面又出現9.0主震,另2022年關山、池上
先發生規模6.4地震也一度被認為是主震,沒想到隔天又有規模6.8主震,不過這樣的機率
確實比較少見。
https://www.nownews.com/news/6411583
6.備註: https://i.imgur.com/bxCDsL8.jpg
發文途中也在震...
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