The device is estimated to have a yield of 200 kt. Given the damage to the environment the weapon clearly created a fireball with a radius of 1.89 km². Furthermore there was a Air blast roughly the equivalent of 20 psi sized at 6.67 km². At 20 psi overpressure, heavily built concrete buildings are severely damaged or demolished; fatalities approach 100%. Often used as a standard benchmark for heavy damage in cities. With the Air Blast dropping off to 5 psi at 29.5 km². At 5 psi overpressure, most residential buildings collapse, injuries are universal, fatalities are widespread. Often used as a standard benchmark for medium damage in cities.

The radioactive fallout however represents the larger risk with the following breakdowns in rads per hour:

Fallout contour for 1 rads per hour:
Maximum downwind cloud distance: 286 km
Maximum width: 51.1 km
Approximate area affected: 12,130 km²
Fallout contour for 10 rads per hour:
Maximum downwind cloud distance: 206 km
Maximum width: 34.9 km
Approximate area affected: 6,120 km²
Fallout contour for 100 rads per hour:
Maximum downwind cloud distance: 125 km
Maximum width: 18.7 km
Approximate area affected: 2,150 km²
Fallout contour for 1,000 rads per hour:
Maximum downwind cloud distance: 44.6 km
Maximum width: 2.51 km
Approximate area affected: 213 km²

Luckily the weapon in question appeared to be clean, or managed to achieve a full reaction of its load limiting the fallout to a small area. The radiation dose rate is reduced by a factor of ten for every seven-fold increase in the number of hours since the explosion. It is expected that nearby settlement will have no lasting long term damage from this event and local environmental conditions will return to favorable levels within 90 days of the downwind fallout. The blast site itself will remain contaminated for the foreseeable future unless cleanup operations are conducted.