UPDATED AND MODIFIED ELLSWORTH CATALOG WITH FOCAL MECHANISMS (CAL_FPS2B.DAT) As the initial dataset we use Ellsworth (1990) historical/instrumental earthquake catalog. We modified it by adding: 1) the recent earthquakes from the Harvard catalog, 2) the focal mechanism solutions and spatially distributed seismic moment from other available publications, and 3) finally, for earthquakes in the 19th century, we used the fault trace information and slip distribution for the largest earthquakes to infer their distributed moment tensor. In the depth column 9.99 means no depth information is available, in the width column 5.0 again means that the rupture width is unknown (the value in this column is half-width -- 5 km up and 5 km down). The first code column in the catalog means: 0 - point source, 1 - distributed source. We tried to represent any earthquake with M >= 6.5 as a distributed source. The second code column means: 0 - guessed mechanism solution (320 90 180); >0 - known mechanism solution: 1 -- fault direction, strike-slip mechanism; 2 -- waveform inversion; 3 -- waveform inversion and geodetic studies ------------------------ Begin of included message 1 --------------------------- Year Mo Day H M Latitude Longitude Dep Mag Mom Str Dip Rake Wid Code 10^18Nm 1808 6 24 0 0 37 48.00 122 30.00 9.99 6.00 1.00 320 90 180 5.0 0 0 1812 12 8 15 0 34 47.58 118 50.40 15.20 6.80 15.40 289 90 180 5.0 1 1 1812 12 8 15 0 34 44.04 118 37.98 14.30 6.95 26.46 289 90 180 5.0 1 1 ................................................................................ ------------------------- End of included message 1 ---------------------------- CAL_FPS1.DAT;1 36/36 2-MAY-1998 15:56:05.00 Ellsworth for all California CAL_FPS2.DAT;4 121/124 26-APR-1998 12:49:22.95 Ellsworth, Phase III catalogs all California, all (320 90 180) mechanisms made guessed solutions CAL_FPS2A.DAT;4 126/128 26-APR-1998 12:48:18.20 Same as CAL_FPS2.DAT, eq. numbers CAL_FPS2B.DAT;7 124/124 3-MAY-1998 12:00:16.18 Ellsworth + Phase III catalogs all California + Harvard data CAL_FPS3.DAT;4 68/68 26-APR-1998 12:49:00.90 Ellsworth, Phase III catalogs S. California, extended eqs thinned, guessed solutions from III CAL_FPS3A.DAT;4 71/72 26-APR-1998 12:48:34.64 Same as CAL_FPS3.DAT, eq. numbers