This file is a firstbreak file for all the explosion data on Larse Line 1.
It was first generated using a picking algorithm in ProMAX for each shotpoint.
The picks for each shotpoint were next edited by hand.  Some effort was made
to pick even emergent arrivals, especially in the LA basin, where propagation
was poor from shotpoints in the San Gabriel mountains.  The user should examine
some of these picks superposed on trace data before using them blindly.
Good luck.  Acknowledgment would be much appreciated.

Gary Fuis
U.S. Geological Survey
345 Middlefield Rd.
Menlo Park, CA 94025
415-329-4758
 (fuis@andreas.wr.usgs.gov).