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INTERACTIVE DEAGGREGATIONS, 1996
On this page you may select a return time, SA frequency, specify
a latitude and longitude and request seismograms. Links to the
following information will be returned:
- A plot of deaggregated distance,
magnitude and ground-motion uncertainty for the specified parameters
(gif, pdf, ps).
- An ascii text file of the hazard matrices, containing, but
not limited to, the frequency selected.
- A geographic deaggregation plot may also be specified (for
designated frequencies only - see below). This is in addition
to the plot mentioned above.
- An ascii text file and graph of the seismograms for the modal
or mean event (if requested).
 README is
a page containing information on how the deaggregation is done
and about the input parameters to the program. It will increase
your likelihood of success with this site if you read it first. Stochastic
Seismograms and What is Epsilon? are
articles which discuss the theory behind the seismograms.
On some
browsers you have to click on a pre-selected item in a list to
deselect it. If you select an item without doing this you will
have two items on the list selected and you will get a broken icon
instead of a plot!
These maps are generated using THE GENERIC MAPPING TOOLS (GMT) by
Paul Wessel, University of Hawaii, and Walter H. F. Smith, NOAA. GMT is
public domain and is distributed free. Additional
information is available at http://gmt.soest.hawaii.edu/
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