The DEFCON Warning System™

Ongoing GeoIntel and Analysis in the theater of nuclear war.  DEFCON Level assessment issued for public notification.  Established 1984.

Radiation Reports

DEFCON Warning System

Current available Radiation Report

Location Radiation Time Reported
No Reports

Radiation Conversion Chart

m = 1/1000
e.g 500 mSv = 0.5 Sv
k = 1000
e.g 1 krem = 1000 rem
Health Effects RAD REM SIEVERTS GREYS*
Noticeable increase in cancer risk 10 rad 10 rem 100 mSv 100 mGy
Additional 1/250 chance at getting cancer 50 rad 50 rem 500 mSv 500 mGy
Temp. Radiation sickness. Not fatal. Nausea. 1/125 increase in cancer risk. 100 rad 100 rem 1 Sv 1 Gy
Severe radiation sickness. Nausea, vomiting. Recovery likely 200 rad 200 rem 2 Sv 2 Gy
Extremely severe radiation sickness. Survival possible with treatment 400 rad 400 rem 4 Sv 4 Gy
Low chance of survival event with treatment 500 rad 500 rem 5 Sv 5 Gy
Usually fatal 600 rad 600 rem 6 Sv 6 Gy
Fatal 1 krad 1 krem 10 Sv 10 Gy
Death within hours 10 krad 10 krem 100 Sv 100 Gy
This chart lists dosages received over a short period of time and their effects. See Chronic Radiation Syndrome for long term radiation exposure.
*Ignores weighting factors, valid only for gamma, x-ray, beta & muons. The DEFCON Warning System makes no guarantee of the accuracy of the numbers on this chart as some conversions vary wildly depending on factors, such as shielding or the type of radiation etc... This chart should be used as a general guideline only.

Current Wind Pattern

Ongoing Geointel and Analysis in the theater of nuclear war.

© 2024 The DEFCON Warning System. Established 1984.

The DEFCON Warning System is a private intelligence organization which has monitored and assessed nuclear threats by national entities since 1984. It is not affiliated with any government agency and does not represent the alert status of any military branch. The public should make their own evaluations and not rely on the DEFCON Warning System for any strategic planning. At all times, citizens are urged to learn what steps to take in the event of a nuclear attack.