The wikipedia article you linked mentioned that the Goiânia source was 50.9 TBq (1,380 Ci) when lost, the source in question here is probably 1-10 mCi, so about

The wikipedia article you linked mentioned that the Goiânia source was 50.9 TBq (1,380 Ci) when lost, the source in question here is probably 1-10 mCi, so about a million times weaker. See this other thread about the incidence: https://news.ycombinator.com/item?id=34549126 https://news.ycombinator.com/item?id=34549126