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Back日本靜岡規模5.7地震 氣象廳分析:與南海海槽「關聯低」
日本靜岡規模5.7地震 氣象廳分析:與南海海槽「關聯低」
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自由时报28 minutes agoEnvironment2 min readChinaView translation

日本靜岡規模5.7地震 氣象廳分析:與南海海槽「關聯低」

Quick Look

日本靜岡縣8日凌晨發生規模5.7地震,愛知縣觀測到震度5強。由於震央位於南海海槽巨大地震預估區,引發民眾恐慌。氣象廳召開記者會表示,兩者關聯性較低,但提醒未來一週需防範餘震。

AI-generated summary

Why It Matters

此次地震震央位於日本政府長期監測的「南海海槽巨大地震」預估震源區內。該區域被認為未來30年內有發生規模8至9級地震的風險。

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日本靜岡縣今(8)日凌晨發生規模5.7地震,鄰近的愛知縣多地觀測到最大震度5強,為該縣時隔近30年來,首次遇到震度5級以上地震,當地災情甚至比靜岡縣更為嚴重。由於這起地震的震央位於「南海海槽巨大地震」的預估震源區內,讓不少民眾擔憂是巨大地震前兆,氣象廳緊急召開記者會說明,強調兩者關聯性較低。

綜合日媒報導,根據日本氣象廳觀測資料,今日凌晨發生的規模5.7地震,震央位於靜岡縣西部,震源深度41公里,地震規模5.7,影響範圍相當廣闊,從關東、中國到四國地區均有明顯搖晃。氣象廳提醒,受到強烈搖晃影響的地區,發生落石、土石崩落的風險大幅提高,未來一週也須密切留意可能發生震度5強的地震。

報導指出,此次地震震央正好位於「南海海槽巨大地震」的預想震央區內,讓各界非常擔心,它是否與日本政府多次示警可能在未來30年內發生、地震規模有約8至9的南海海槽巨大地震有關,社群網路也出現大量地震災害討論,甚至瘋傳「南海海槽巨大地震的規模,約本次地震的12萬5892倍」等說法,讓大眾憂心忡忡。

氣象廳地震火山部課長海老田綾貴則在記者會說明,指出雖然這起地震發生在南海海槽巨大地震的預估震源區內,但震源深度及發生機制不同,且根據監測資料顯示,板塊交界狀態並未出現明顯異狀,研判這起地震與南海海槽巨大地震的關聯性較低,但仍提醒民眾未來一週內,要注意同等規模的地震再次發生。

What to Watch

AI outlook — possibilities, not facts

  • 未來一週內發生同等規模地震的風險

    Possible · Within weeks

Open Questions

  • 未來一週是否會發生規模5強以上的餘震?
  • 愛知縣受災程度高於靜岡縣的具體原因為何?

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