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From: email@example.com (Glenn Campbell, Las Vegas) Date: Mon, 3 Mar 1997 19:29:43 -0800 Subject: Mystery Sonic Boom in Phoenix From: [Withheld by request] Date: Mon, 3 Mar 1997 10:02:00 Subject: Mystery Sonic Boom To: firstname.lastname@example.org Just a tidbit that might support the strange contrail sighting commented on the mailing list. On friday (2/28/1997) at about 1:40 PM we had a very sharp sonic boom in my area (north Phoenix.) I was working at home and called in to the office, and it was heard there (about 20 miles south), and my wife's parents also heard it (20 miles east.) There were no news reports on TV or in the newspaper about this (previously, when Motorola rented a SR-71 and made some booms here, there were.) What I though was really interesting is that I had read that sonic booms registered on seismographs, so I though I'd do a web search and see if the data was on line to see what a boom looks like. A link from a link on the UFOMIND site brought me to the IRIS DMC (http://www.iris.washington.edu/). One can indeed check seismic data there (no sonic booms registered in the area at the time). But I thought is was fascinating that partial funding for the data management center comes from the Air Force Office of Scientific Research! Also, the site refers to forms to fill out to get access to "restricted data sets." Top secret earthquake data? Have any idea how to spot/find seismic data on sonic booms?
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