18日午後2時55分ごろ、長野県大町市と長野市で震度5弱を観測する地震があった。震源は同県北部で、震源の深さは約10キロ、地震の規模を示すマグニチュード（M）は5・1と推定される。この地震に伴う津波の心配はない。同県北部では同日午後1時20分ごろにも ...

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