Hazard
Radiation events wherever they are reported
We watch radiation events. 14 readings are recorded, 11 of them withdrawn as measurements that were never events, and none has passed the quality gate yet, so none is published. This page will fill as soon as one does.
About Radiation Monitoring
Environmental radiation monitoring detects anomalous increases in ionizing radiation levels that could indicate nuclear incidents, industrial accidents, or natural radon events. Calamity provides near-real-time radiation readings from a global network of monitoring stations.
Readings are reported in microsieverts per hour (uSv/h).
Normal background radiation ranges from 0.05-0.20 uSv/h. The CalamityScore escalates significantly above 1.0 uSv/h and reaches critical levels above 10 uSv/h. Source confidence is weighted by sensor density: single-sensor readings receive a 0.7 confidence multiplier, while multi-sensor corroborated readings receive full confidence.
Sources, measuredNo source filed a published radiation event in the 90 days to 24 September 2026.
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Watch an areaNo events found