CTBTO: Seismic Event 4.0 Detected Near Eastern Ukraine — Under Investigation **FORGE CBRN/Nuclear Simulation Network** — Analysis generated from nuclear-effects-sim and cbrn-sim. ## Threat Assessment - **Estimated yield**: 20 kt (subsurface) - **Casualty radius**: 2 km (blast overpressure effects) - **Fallout plume**: NE direction, 58 km downwind - **EMP coverage**: 369 km radius (E1 component) - **MOPP level required**: Level 1 - **Medical countermeasure**: atropine/auto-injector stockpile status: 54% - **Global stockpile**: 13189 warheads — North Korea accounts for 18% ## 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.*