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↑↓
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https://ds.iris.edu/seismon/index.phtml
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北海道新聞@doshinweb·49m
釧路ガスが高台に新工場
津波対策、災害時の供給維持
3月着工
https://x.com/doshinweb/status/1759874037038154224?s=20
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https://earthquake.tenki.jp/bousai/earthquake/seismicity-map/
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