Nuclear Risk Watch · Facility Report
Tokai Power Station
Japan · nuclear power plant · decommissioned · 166 MW installed
36.466, 140.607 · generated 2026-11-12 20:21:08 UTC
Current external hazard exposure
LOW · 15.2/100
Earthquake 112 km from Tokai Power Station, 4 d ago (severity 34%, distance factor 0.47, recency 0.44) plus 8 other active hazards → exposure LOW (15.2/100).
Baseline: this exposure is at or above 78% of the 678 observations recorded for this facility since 2026-08-14 · highest recorded 24.8/100.
Facility impact: no operational effect has been confirmed in the public sources reviewed.Exposure measures external hazard conditions near the site; it is not an assessment of plant engineering safety.
Nearby active hazards (in range)
| Type | Source | When (UTC) | Distance |
|---|---|---|---|
| EARTHQUAKE M4.6 | USGS | 2026-11-09 05:01 | 75 km |
| EARTHQUAKE M4.9 | USGS | 2026-11-10 05:20 | 78 km |
| EARTHQUAKE M5.5 | USGS | 2026-11-07 11:07 | 81 km |
| EARTHQUAKE M4.5 | USGS | 2026-11-12 13:27 | 82 km |
| EARTHQUAKE M5.7 | USGS | 2026-11-09 04:52 | 112 km |
| EARTHQUAKE M4.6 | USGS | 2026-11-11 03:56 | 146 km |
| EARTHQUAKE M6.1 | USGS | 2026-11-06 10:39 | 215 km |
| EARTHQUAKE M4.5 | USGS | 2026-11-08 20:16 | 243 km |
| EARTHQUAKE M4.7 | USGS | 2026-11-10 06:36 | 256 km |
Recent exposure history
- 2026-11-12 19:04 · LOW 15.2
- 2026-11-12 17:03 · LOW 15.7
- 2026-11-12 16:03 · LOW 15.9
- 2026-11-12 15:04 · LOW 14.3
- 2026-11-12 14:03 · LOW 14.5
- 2026-11-12 12:04 · LOW 14.7
- 2026-11-12 10:03 · LOW 15.0
- 2026-11-12 09:04 · LOW 15.2
How this score is calculated
External hazard exposure (0–100) combines four factors: hazard type, severity, proximity to the site and recency — higher when a serious hazard is close and recent. It does not incorporate facility vulnerability or consequence. Full methodology.
LOW 0–20MODERATE 20–40ELEVATED 40–60HIGH 60–80SEVERE 80–100