article_snippet: The Princeton team fed data from seismograms into a computer model, which then simulated each wave as it moves out from the epicenter.
article_snippet: The resulting "synthetic seismograms" were compared to real seismograms, and the differences fed back into the model to improve the model.
article_snippet: The Princeton team have been using the number-crunching capabilities of the Titan computer at the Oak Ridge National Laboratory in Tennessee, which can handle 20 quadrillion calculations per second.
article_snippet: The Titan computer simulates each wave as The Titan computer propagates from the epicenter, and the resulting data is compared to real seismograms.
article_snippet: The differences are then used by Titan to improve Titan model.
article_snippet: A computer program designed by Professor Tromp and Professor Tromp team compares real earthquake data to a computer-generated model, then uses any discrepancies to improve a computer-generated model .