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- Newsgroups: ca.earthquakes
- Path: sparky!uunet!spool.mu.edu!agate!ames!data.nas.nasa.gov!wilbur.nas.nasa.gov!eugene
- From: eugene@wilbur.nas.nasa.gov (Eugene N. Miya)
- Subject: Re: Earthquake Warnings (was Re: earthquakes during surgery)
- References: <1993Jan21.232601.15723@kestrel.edu> <51918@seismo.CSS.GOV> <23282@venera.isi.edu>
- Sender: news@nas.nasa.gov (News Administrator)
- Organization: NAS, NASA Ames Research Center, Moffett Field, CA
- Date: Tue, 26 Jan 93 02:28:54 GMT
- Message-ID: <1993Jan26.022854.7049@nas.nasa.gov>
- Lines: 38
-
- In article <23282@venera.isi.edu> tar@isi.edu writes:
- >that any panic caused by the alarm going
- >off would be short-lived (or justified :)
-
- No, that's stupid. You have to review the history of disasters where
- panic played a part of making this worse: consider things like firemen do:
- the Coconut Grove fire, recent fires at post offices and meat packing
- plants, soccer and rugby games where people recently have been crushed to
- death. Please explain an instance where panic is justified. It is rarely
- short-lived except when the people perish quickly.
-
- > > 2) possibility of false alarms).
- >
- >This is much trickier to get right. If the false alarm rate were too
- >high, then the alarms would end up being ignored. I'm not quite sure
- >what rate of false alarms would be acceptable.
- >Something along the lines of one or two per year might be tolerable,
- >although that would still be a large number of false warnings for each
- >true one.
-
- You and I might consider that rate tolerable, but others might not.
- You gave a reactor SCRAM as an example.
- So then who decides? Based on your analysis above, you have lost our
- credibility that a 1-2 times per year rate is okay, and you gave it to the
- reactor manager.
-
- Decent analysis removed for shortness.
-
- >In spite of these reservations, I'd still like to have one for myself
- >(if the receiver weren't too expensive).
-
- Depends on the costs.
-
- --eugene miya, NASA Ames Research Center, eugene@orville.nas.nasa.gov
- Resident Cynic, Rock of Ages Home for Retired Hackers
- {uunet,mailrus,other gateways}!ames!eugene
- Second Favorite email message: Returned mail: Cannot send message for 3 days
- A Ref: Mathematics and Plausible Reasoning, vol. 1, G. Polya
-