... behavior and 173–174damage and casualties from 158– 160 duration 162 epicenter 161 – 162 fault zones 165 –171focus (hypocenter) 9, 159, 161 , 162 forecasts and probabilities 177–178 and geothermal ... 148Richter, Charles 9, 163 , 164 – 165 , 187Richter scale (Richter-Gutenberg scale) 9–10, 163 , 164 – 165 ris 55FOS _Earth Science_DC.indd 210 2/8/10 10:59:59 AM earth ScienceS 204205Main categories ... 93San Andreas Fault 167 , 168 , 169 m, 170, 170, 181, 184, 1 86 San Andreas Fault Observatory at Depth (SAFOD) 181–183, 187Sandia National Laboratory 121San Francisco earthquake (19 06) 159, 163 ,...