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Seismograms are used to determine relative distances to earthquake epicenters. ... Seismic travel time curves are used to determine the actual distance to epicenters. ... Triangulation is used to locate epicenters...
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www.indiana.edu/~pepp/curriculum/2001/baker/baker.htm
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@Obviously; What exactly was destroyed? First of all, people just used the service to do what it was meant to do, shorten URLs. It was the GOP’s decision to take the service down because people were linking things they didn’t like.
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www.wired.com/epicenter/2009/12/gop-removes-conservativ...
www.wired.com/epicenter/2009/12/gop-removes-conservative-url-shortener-following-pranks/
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and large dots, ¾” diameter, are used for earthquakes of magnitude 7.0 or greater). The depth of the earthquake is indicated by color of the dot - red for shallow, green for intermediate and blue for deep. An example of a map with some earthquake epicenters plotted with colored dots is shown in Figure 11.
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www.eas.purdue.edu/~braile/edumod/epiplot/epiplot.htm
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For these Low Frequency seismograms, only the vertical motion one sample per second data is used. It is decimated by Lawrence Livermore Seismic Analysis SAC (Seismic Analysis Code) software to one sample per two seconds.
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www.okgeosurvey1.gov/seis/long.explanation.html
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Four most recent days. ... 2005 DEC scroll ... These web pages are processed by a NAWK program which calculates the distance to Leonard, Oklahoma U.S., and the expected arrival times of P/Pdif/PKP and LR. Source 1. tends to have lower magnitudes than source 2. If the type of magnitude was not labelled by the source,
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www.okgeosurvey1.gov/seis/seis.index.2005.html
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First a training-set of 14 earthquakes from 1963 to 1998 with instrumental determined magnitudes and epicenters is used to define an empirical relation between these magnitudes, the intensity observations and the epicentral distances.
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www.geo.uni-bonn.de/members/oemisch/scientific_work_en....
www.geo.uni-bonn.de/members/oemisch/scientific_work_en.html
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(4), epicenters of earthquakes used in the inversion for the sub-array model (?), and epicenters used to investigate the azimuthal variations (3). rived from CRUST5.1 [Mooney et al., 1998]) and restricted the models to be PREM-like below 220 km. Because the;
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www.ldeo.columbia.edu/~gaherty/Publications_files/freyb...
www.ldeo.columbia.edu/~gaherty/Publications_files/freybourger_ea_grl01.pdf
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Figure 1. Map of the earthquake epicenters used to calibrate the coda-wave seismic moment formula for the modern digital seismic stations of the New England Seismic Network of Weston Observatory of Boston College.
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www.bc.edu/research/westonobservatory/researchlist/mome...
www.bc.edu/research/westonobservatory/researchlist/momentmag.html
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The magnitues and epicenters are used to determine the geographical area of the State Water Project requiring inspections after an earthquake.
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wwwoandm.water.ca.gov/earthquake/about/rtime_index.cfm
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