四國
地震風險：高
Kagawa Prefecture 地震風險
Kagawa sits on Shikoku's north coast surrounded by the Seto Inland Sea. The many islands partially attenuate Nankai Trough tsunami, but internal wave reflection can concentrate waves at unexpected points. The Sanuki Fault System includes inland active faults.
主要斷層・地震帶
Kagawa Prefecture is surrounded by the Seto Inland Sea on Shikoku's north side. The many islands partially attenuate Nankai Trough tsunami, but internal wave reflection and bay geometry can concentrate them at unexpected coastal points. The Sanuki Fault System includes inland active faults.
主要斷層線
南海海槽（間接） 사누키 단층계