On Sep 9, 2010, at 1:12 PM, David Mann wrote: > > The aftershocks are definitely reducing, I've probably only felt 5 or 6 of > them during the past 24 hours and only 2 of them have been significant. > Actually one of those I felt was two aftershocks at once, one from each end > of the fault. The ones from the closer end are jarring, some of them are > being located within the outer suburbs only a couple of miles from my house. > The movement isn't too bad, the noise is something else... sounds like a > (small) bomb going off.
After our little 7.1 back in '89, one of the games I'd play was guessing the distance and magnitude of the aftershocks. The delta-T between the p-waves and the t-waves, along with the sharpness of the movement would give me a pretty good idea of the distance. I'd use that distance as a fudge factor on the intensity*time and guess the magnitude. By the time we stopped having aftershocks, my butt was a fairly well calibrated seismograph. > > It's quite interesting to be a part of this but it is a bit tiring :) Seems > to be getting a lot better though. Good luck, try to enjoy the ride. One thing that I learned is that it is good to have a contact number that is out of the local region. During an emergency, nobody can dial into any local numbers, but it's easy to call someone out of the area. So have a relative, or close friend who lives at least a few hundred klicks, or miles away that you can have people call in case of an emergency (quake, flood etc.) in your area. > > Cheers, > Dave > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- Larry Colen [email protected] sent from i4est -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
