[adaven]

Strange wave pattern. Look at the green tracing. Almost like an explosion?

That is strange indeed.

[Polynikes]

Back in the 80’s when I was working in the East bay I used to call up the Berkeley Seismo lab automated recording that used to list the EQ that have occurred in the Western US. One day they listed a 4+ event as an “unscheduled nuclear event” in the Nevada test range. WTF? I had heard others listed as nuclear tests but never “unscheduled”. I always figured someone screwed up but could never confirm it.