Urasoko fault or Urasoko fault system is a seismic fault (system) running for 39 kilometers near

Tsuruga is a city located in Fukui Prefecture, Japan. , the city had an estimated population of 66,123 in 28,604 households and the population density of 260 persons per km2. The total area of the city was . Geography Tsuruga is located in central ...

, Japan. Combined with the faults of the system, there are an additional 25 km of faults. It is notable in that it runs 250 meters from Unit #2 of the Tsuruga Nuclear Power Station,

Tsuruga Nuclear Power Plant The is located in the city of Tsuruga, Fukui Prefecture, Japan. It is operated by the Japan Atomic Power Company (JAPC). The total site area is with 94% of it being green area that the company is working to preserve. The Tsuruga site is a dua ...

. It was determined that it is capable of triggering a 7.4 magnitude quake.

References

{{East Asia plates Seismic faults of Japan