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Travel-times vs distance are calculated for P and S arrivals (sorry, no converted phases or multiples) for sources at any depth. These may be compared to observed travel-times. This is a very quick way to define 1-d velocity models from observed arrival pics.

Author: Jim Luetgert
Usage: 1-D travel time calculation
Platform: Mac OS X
Interface: Menu driven
Output: PICT file
Download: MacR1D V1.17 (1.6 MB)