Toyama Prefecture (富山県) — Earthquake Risk & History
Chubu region · Based on HERP official data
Toyama faces Toyama Bay, whose deep basin can amplify tsunami wave heights. The 2024 Noto Peninsula Earthquake sent tsunami waves to the Toyama coast. The Japan Sea Eastern Margin Fault Zone remains the primary offshore threat.
Fault Lines & Seismic Characteristics
Active Faults & Trenches
- Japan Sea Eastern Margin Fault Zone
- W Toyama Bay Fault
Seismic Characteristics
Toyama Bay's deep and uniquely shaped basin can amplify tsunami heights. The Japan Sea Eastern Margin Fault Zone lies to the west. The 2024 Noto Peninsula Earthquake (M7.6) sent tsunami to Toyama's coast. The Toyama Bay Western Margin Fault is also identified as a potentially active fault.
Earthquake History
- M7.6
- M7.1
1858
Himi earthquake — damage across Toyama Prefecture
※ Showing M6.5+ or Intensity 5+ events. Source: JMA database.
Future Probability — HERP Official Assessment
30-Year Probability (Official Figure)
Long-term evaluation by the Earthquake Research Committee. The 2024 earthquake prompted a full review of coastal evacuation infrastructure across Toyama Prefecture.
Traveler Safety Information
Finding Evacuation Shelters
- ✅ Search "避難所" (hinanjo) on Google Maps to find the nearest shelter from your current location
- ✅ Install NHK World or Safety tips (Japan Tourism Agency app) — both send English earthquake alerts
- ✅ Toyama Prefecture official disaster prevention page (Japanese) — includes shelter maps
Basic Action Rules
- ✅ At check-in, locate emergency exits and escape routes
- ✅ On strong shaking: protect your head, open a door to secure an exit, do not use elevators
- ✅ Near coasts or rivers: move to high ground immediately — do not wait for a tsunami warning
- ✅ Emergency numbers: Police 110 · Ambulance/Fire 119
- ✅ Contact your embassy in Tokyo for emergency consular assistance
Research & Official Sources AI summary
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Earthquake and tsunami risk assessment in Toyama Bay
Toyama Bay's deep underwater basin can amplify tsunami wave heights. The 2024 Noto earthquake prompted a review of coastal evacuation infrastructure across Toyama.
Source: 도야마현 방재관리과 (2024) -
Travel safety in Toyama after the 2024 Noto earthquake
Toyama experienced tsunami advisories and Intensity 5 shaking during the January 2024 Noto earthquake, but Toyama City and major attractions (Tateyama-Kurobe Alpine Route, etc.) quickly returned to normal. Check the Toyama Prefecture official site for the latest status when traveling the Kanazawa–Toyama corridor.
Source: 도야마현 방재관리과 (2024)
Related Guides
Seismic characteristics and research summaries on this page are AI-generated from publicly available data by JMA, Cabinet Office, and HERP. Historical earthquake data (year, magnitude, damage) is based on official records, but key figures should always be cross-checked with the latest official sources. This page does not predict future earthquakes.