[pfflier]

We had a fair sized earthquake when we were living in San Diego around a 6.0. When I was leaving for work, my garage door opener opened every garage door in the block. I cycled it several times to make sure it wasn't a coincidence.

My guess is that the electromagnetic effects of the quake modulated the radio signal of my transmitter and it jumped over several frequencies. It was a Genie so it was a very common brand so we probably all had the same basic RF spectrum and code formats to deal with.

When I came home that evening, everything was back to normal.

[Hieronymus]

How long before the quake was the garage door opener incident?

[nutmeg]

Wow... interesting!

[pollywog]

wow, fascinating!!!