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Active Message Threads for December 2007
John Lahr
The AS-1 seismograph stations provide an exciting way to study the
Earth via earthquakes. I've been trying to think of some other uses
that these instruments could be put to that involve inquiry.
Here are a few:
* What is the best location in the room for the AS-1 seismograph?
This would involve figuring out a way to quantify "best," perhaps in
terms of the background noise. What is the effect of being near a
window (sun light on the spring), near a heat vent (convection within
th…
[more]
No replies
paul denton
I have had a school in the UK concerned about the "carbon footprint"
of having a dedicated PC running 24/7 to act as a datalogger and TCP
sever for the amaseis datalogger system.
Has anyone every tried using the amaseis datalogger system with a
serial-ethernet convertor attached to the seismometer and having
amaseis running on a remote PC. I realise that you still need to
have a PC running 24/7 with this system however schools will usually
have a central server which is running anyway and th…
[more]
No replies
Russ at IRIS has found that the ftp settings that I had described in
my instructions were causing many unnecessary entries to the ftp log
file at IRIS. I've modified the posted instructions:
http://jclahr.com/science/psn/as1/snagit8/snagit8_setup.html
In particular the screen shown here:
http://jclahr.com/science/psn/as1/snagit8/snagit4.jpg
has been modified to eliminate the extra log-file entries.
If you are currently sending your helicorder image to IRIS, please
make those changed in Sna…
[more]
No replies
Educators,
I've posted a page with information on today's M 5.6 event in the
Queen Charlotte Islands:
http://jclahr.com/science/psn/as1/queen07/index.html
Although not that large, this event should have been detected by all
of the US AS-1 stations because of its proximity.
Cheers and Happy Holidays,
John
#################################/ John C. Lahr
################################/ Emeritus Seismologist
###############################/ U.S. Geological Survey
=========================…
[more]
No replies
>Globe with Earthquake Location
>
>
>7.8 Mw - SOUTH OF FIJI ISLANDS
>
>
I've posted an information page written by Bob Butler on this event:
http://jclahr.com/science/psn/as1/figi07/index.html
With any luck everyone should have a good recording of this
earthquake. Because of it's depth, the body waves are well expressed
and the surface waves are relatively subdued.
Cheers,
John
#################################/ John C. Lahr
################################/ Emeritus Seismologist
##…
[more]
No replies
John Taber
Dear Colleagues and Friends,
IRIS is currently redesigning its website with a target launch date
of June 2008. Our primary goals for this project are to gain a more
professional look, make specific information easier to find, and
better meet the needs of all website visitors.
We are seeking input from anyone who interacts with the IRIS website,
whether you are an IRIS member, a researcher seeking data, an educator
seeking resources, or a curious individual interested in seismology.
Yo…
[more]
No replies
Alan Jones
This was in this morning's paper:
