IRIS EPO

For educators, college/university faculty and professionals interested in the instruction of seismological concepts in primary and secondary classrooms.

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Active Message Threads for January 2007

John or Jan Lahr
2007-01-26 03:38:03
Hi Greg, I have a number of Win98 computers that have USB ports. If the problem is that the USB port will not read a thumb drive, then you can download the necessary driver from the manufacturer of the thumb drive. Use a floppy disk or a CD to transfer the file that you download from the manufacturer onto your Internet PC to the Win98 computer's disk. Then install the driver and you're set to go. Keep the same directory structure. The year directory, such as 2007, must be directly belo... [more]
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Craig Messerman
2007-01-25 18:14:10 - 2007-01-25 21:07:26
Hi All, Our AS1 is currently running on an old Win98 machine that is not network capable and its USB ports are not enabled. It does have a zip drive. I aquired a newer machine, but I can't figure out an efficient way to move two years of data to the new machine. The zip drive is very slow and the disks don't hold much more than a month or two of data (does that sound right?). I could go back and note the dates of major events and just move the folders for those days, but could I just drop th... [more]
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John or Jan Lahr
2007-01-24 04:47:35
I've started creating a FAQ page for AS-1 operations. See: http://jclahr.com/science/psn/as1/faq/index.html Let me know if there are additional topics that should be added. Cheers, John #################################/ John C. Lahr ################################/ Emeritus Seismologist ###############################/ U.S. Geological Survey ==========================/ Central Region Geologic Hazards Team #############################//################################# ##############... [more]
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Larry Braile
2007-01-22 15:47:52
An updated version of "Interpreting Seismograms -- A Tutorial for the AS-1 Seismograph" is available at: http://web.ics.purdue.edu/~braile/edumod/as1lessons/InterpSeis/InterpSeis.htm. You can also link to MS Word and PDF versions for convenient printing. Please let me know if you have comments or suggestions. I hope that the tutorial will be useful to AS-1 and other educational seismograph operators. -Larry Braile -- Lawrence W. Braile, Professor and Head ... [more]
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John or Jan Lahr
2007-01-17 00:47:30 - 2007-01-17 03:33:10
Dennis, I think you should be able to run with a gain of 20 or so. The trace should always show some vibration. John At 03:49 PM 1/16/2007, you wrote: >I just recently received and as1 and was wondering what is the >optimal gain for the helicorder to where you get earthquakes but not >as much kid noise. I have mine set to 1 currently but is that >sensitive enough to pick up events? >On Jan 16, 2007, at 9:12 AM, Jerry Cook wrote: > >>Hi All, >>I am having trouble with my computer clock... [more]
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  • Gain - jerdell@cox.net - 2007-01-17 03:33:10
Jerry Cook
2007-01-16 18:12:51 - 2007-01-17 03:08:49
Hi All, I am having trouble with my computer clock. Every morning when I come in I ping "atomic clock sync" and my clock is off by about 3.5 minutes. I have the program set to ping automatically but that only happens once a day. Is there a way to automatically ping more often? Why is my clock so inacurrate? J. Bob
Replies
Jeffrey Szarzi
2007-01-16 23:05:46
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Michael Breed
2007-01-09 21:02:22
I had a newpaper reporter in my class to talk about... of all things... the AS-1 seismograph! GREAT teachable moment! Michael Breed Chenango Valley High School Science Dept. 1160 Chenango Street Binghamton, NY 13901 (607) 779-4743 x4248 >>> "Ed Roberts" <Ed.Roberts@pottsville.k12.ar.us> 1/9/2007 12:43 PM >>> We had the same opportunity here as well. I was teaching an Earth Science class when the waves rolled in, providing another great learning moment, courtesy of the AS-1. Ed Roberts,... [more]
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Craig Messerman
2007-01-09 20:38:55
Our record in Montana appears to be a classic textbook example of easy-to-read arrivals. We'll be using this one!!! Craig Messerman Sentinel High School, Missoula, Montana >>> <cdewolf@chsd.us> 01/09/07 09:33AM >>> I had the good fortune to be looking at my screen when waves from a quake in Alaska started rolling in. I have an Advisory class at that time, so I was able to take advantage of the open structure of this "class" to seize the moment and teach them some seismology. I found anot... [more]
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Jerry Cook
2007-01-09 20:27:37
Gretings, 1. Chris' solution worked. John's did not. See below. 2. Dang! I was offline during the Alaska quake. J. Bob Hi All, I am having problems with my recording. The recording never goes all the way to the right edge of the screen. It stops at 58 minutes and goes on to the next line. Does anyone know how to fix this? J. Bob Hi J. Bob Mine does this as well every now and again. Just remove and reconnect to your computer and reboot. This works for me. Cris L. DeWolf Hi J. Bob, I hav... [more]
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Ed Roberts
2007-01-09 19:43:45
We had the same opportunity here as well. I was teaching an Earth Science class when the waves rolled in, providing another great learning moment, courtesy of the AS-1. Ed Roberts, Science Teacher 500 Apache Drive Pottsville High School, Arkansas 72858 ed.roberts@pottsville.k12.ar.us ________________________________ From: irised-bounces@iris.washington.edu on behalf of cdewolf@chsd.us Sent: Tue 1/9/07 10:33 To: irised@iris.washington.edu Subject: [irised] Recent (Very!) Alaskan Quake... [more]
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John or Jan Lahr
2007-01-09 16:17:01
Hi J. Bob, I have seen the screen look like this when the sample rate printed in the bottom left of the screen had changed for some reason. It should be just a bit higher than 6 samples per second. Stopping and starting AmaSeis has, in my experience, corrected the problem. Let us know what happens. Cheers, John At 06:27 AM 1/9/2007, you wrote: >Hi All, >I am having problems with my recording. The recording never goes all >the way to the right edge of the screen. It stops at 58 minut... [more]
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Jerry Cook
2007-01-09 15:27:51
Hi All, I am having problems with my recording. The recording never goes all the way to the right edge of the screen. It stops at 58 minutes and goes on to the next line. Does anyone know how to fix this? J. Bob
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