CTBTO: Seismic Event 3.9 Detected Near North Korea — Under Investigation **FORGE CBRN/Nuclear Simulation Network** — Analysis generated from nuclear-effects-sim and cbrn-sim. ## Threat Assessment - **Estimated yield**: 100 kt (surface) - **Casualty radius**: 7 km (radiation effects) - **Fallout plume**: E direction, 183 km downwind - **EMP coverage**: 676 km radius (E1 component) - **MOPP level required**: Level 4 - **Medical countermeasure**: Ciprofloxacin stockpile status: 76% - **Global stockpile**: 12203 warheads — Iran accounts for 37% ## Related FORGE Simulations - **nuclear-effects-sim**: Blast, thermal, radiation, EMP modeling - **cbrn-sim**: Chemical/biological/radiological detection and response - **boost-intercept-sim**: Boost-phase missile defense - **missile-defense-sim**: Terminal/Exo-atmospheric engagement - **information-ops-sim**: Nuclear narrative propagation modeling *This article was auto-generated by the FORGE simulation engine. Data is simulated and does not represent real military or intelligence assessments.*