- non-seismic region
- quiet location
- 不: a block of wood
- 震区: earthquake region
- 爆震区: knocking zone
- 地震区: area of seismographic disturbance; earthquake country; earthquake province, earthquake region, seismic zone; earthquake zone; seimic area; seismic area; seismic country; seismic region; seismic zone
- 激震区: shock zone
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