On Dec 28, 2004, at 8:09 AM, Mike Hord wrote: > Extrapolated from that information using Einstein's > famous equation, we arrive at 9x10^8 joules. > > Give or take, that's 2100 Megatons. http://www.seismo.unr.edu/ftp/pub/louie/class/100/magnitude.html says that a 9.0 Earthquake is about 32000 megatons, BTW... BillW -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist