中國
地震風險：中等
Hiroshima Prefecture 地震風險
Hiroshima faces the Seto Inland Sea and receives indirect Nankai Trough risk. The island-studded coastline partially attenuates tsunami, but bay geometry can concentrate waves. Mountain areas carry significant landslide risk.
主要斷層・地震帶
Hiroshima Prefecture faces the Seto Inland Sea and lies in the indirect influence zone of the Nankai Trough. The Seto Inland Sea's islands partially attenuate tsunami, but bay geometry can concentrate waves at specific points. The Chugoku Mountains carry significant landslide risk.
主要斷層線
조잔 단층대 나가토-이와쿠니 단층