Auxiliary Material Submission for Paper ¡°Slip history of the 2003 San Simeon Earthquake constrained by combining 1-Hz GPS, strong motion, and teleseismic data¡±, [Paper # 2004GL020448R] Chen Ji1, Kristine M. Larson2, Ying Tan1, Kenneth W. Hudnut3, and Kyuhong Choi2 1Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, 91125 2Department of Aerospace Engineering Sciences, University of Colorado at Boulder, Boulder, CO, 80309-0429 3United States Geological Survey, 525 S. Wilson Ave, Pasadena, CA 91106 Introduction This supplement includes 5 figures to show background information and some additional data used during this study. Figure S1. Azimuth and elevation angle distribution of the GPS satellites visible during the San Simeon earthquake from the station CRBT (The distributions from other stations are similar). The azimuth directions are given in text (East, West, North, and South), and the elevation angles are denoted by the concentric circles. The outermost circle is 0 degrees; the cross is 90. The dotted lines are for 15, 30, 45, and 60 degrees. Figure S2. Comparison of triggered strong motions (black lines) and synthetic seismograms (red lines). Both data and synthetics are aligned by the P times. The number above each trace indicates the peak amplitude of this record. Figure S3. Comparison of distant strong motions (black lines) and synthetic seismograms (red lines). The Green¡¯s functions were calculated using the Socal crustal model. Both data and synthetics are aligned by the P times. The number above each trace indicates the peak amplitude of this record. Figure S4. Comparison of distant strong motions (black lines) and synthetic seismograms (red lines). The Green¡¯s functions were calculated using the Walter and Mooney crustal model. Note the difference with those in Figure S3, suggesting that the mismatches of surface waves may be caused by effects of 3D velocity structure. Figure S5. Comparison of teleseismic data (black) and synthetic seismograms (red). Both data and synthetics are aligned by the P times. The number above the beginning of each trace is the azimuth and that below is the epicentral distance in degree. The number above the end of each trace indicates the scale in micrometer.