Hiroshima Testimony Evidence Map (August 6, 1945)

Spatial Impact Layers

Zone A: Total Collapse (0.5km) Zone B: Firestorm & Thermal Flash (1.2km) Zone C: Blast Overpressure Wave (2.0km) Black Rain Fallout Trajectory

08:15:30 AM T + 0.5 min

Phase: Detonation & Thermal Radiation Flash

Rediscovered Primary Memoir

Motoyasu Bridge / Hypocenter 300m East

Author: Eyewitness Civilian Record (August 6, 1945) Distance: 300m from Hypocenter

"An instantaneous blinding violet-white flash illuminated the streets silently. Before I could process the thermal radiance that scorched skin directly, a wall of compressed air tore through the timber frames of the surrounding structures."

Recorded Physical Phenomena:

Instantaneous thermal flash preceding shockwave
10+ PSI blast wave collapse of wooden buildings
Precipitation of dark radioactive ash rain 20 mins later

Historical Evidence Summary Export