Earthquake 51146343: 9/18/2004 23:02:17 GMT, M=5.50, N38.01 W118.68, 7.55km depth, Bias: pga=-0.41 pgv=-0.44 

Seismic Stations
1780: CA: San Jose; Fire Station 09, Southwest (National Strong-Motion Program)
     Coordinates: N37.26 W121.92 Dist: 297.4 km 
     HNE 0.0214 cm/s  0.0196 %g
     HNN 0.0276 cm/s  0.0254 %g
1781: CA: San Jose; Fire Station 06, Central (National Strong-Motion Program)
     Coordinates: N37.30 W121.90 Dist: 295.2 km 
     HNE 0.0239 cm/s  0.0247 %g
     HNN 0.0228 cm/s  0.0259 %g
1782: CA: San Jose; Fire Station 10, Northwest (National Strong-Motion Program)
     Coordinates: N37.32 W121.94 Dist: 298.0 km 
     HNE 0.0223 cm/s  0.0281 %g
     HNN 0.0304 cm/s  0.0300 %g
1783: CA: San Jose; Fire Station 26, East (National Strong-Motion Program)
     Coordinates: N37.31 W121.85 Dist: 290.3 km 
     HNE 0.0232 cm/s  0.0257 %g
     HNN 0.0361 cm/s  0.0333 %g
1785: CA: Pleasanton; Fire Station 1 (National Strong-Motion Program)
     Coordinates: N37.66 W121.87 Dist: 283.8 km 
     HNE 0.0253 cm/s  0.0230 %g
     HNN 0.0144 cm/s  0.0171 %g
1786: CA: Livermore; Fire Station 6 (National Strong-Motion Program)
     Coordinates: N37.68 W121.74 Dist: 271.7 km 
     HNE 0.0633 cm/s  0.0657 %g
     HNN 0.0304 cm/s  0.0442 %g
1788: CA: Milpitas Fire Station 4 (National Strong-Motion Program)
     Coordinates: N37.42 W121.92 Dist: 292.8 km 
     HNE 0.0366 cm/s  0.0332 %g
     HNN 0.0337 cm/s  0.0314 %g
1793: Ca: Mt. Pleasant High School (National Strong-Motion Program)
     Coordinates: N37.35 W121.81 Dist: 285.6 km 
     HNE 0.0255 cm/s  0.0249 %g
     HNN 0.0316 cm/s  0.0286 %g
1798: CA: San Jose; Painter School (National Strong-Motion Program)
     Coordinates: N37.38 W121.84 Dist: 287.8 km 
     HNE 0.0341 cm/s  0.0296 %g
     HNN 0.0210 cm/s  0.0192 %g
1803: CA: Livermore FS#8 (National Strong-Motion Program)
     Coordinates: N37.72 W121.73 Dist: 270.1 km 
     HNE 0.0315 cm/s  0.0285 %g
     HNN 0.0445 cm/s  0.0510 %g
1825: CA: San Jose; Laneview School (National Strong-Motion Program)
     Coordinates: N37.41 W121.87 Dist: 289.0 km 
     HNE 0.0484 cm/s  0.0355 %g
     HNN 0.0392 cm/s  0.0422 %g
1826: CA: Pleasonton; Lydiksen Elementary School (National Strong-Motion Program)
     Coordinates: N37.68 W121.92 Dist: 287.6 km 
     HNE 0.0362 cm/s  0.0307 %g
     HNN 0.0256 cm/s  0.0382 %g
1837: CA: San Jose FS# 27, San Jose (National Strong-Motion Program)
     Coordinates: N37.23 W121.77 Dist: 286.3 km 
     HNE 0.0396 cm/s  0.0399 %g
     HNN 0.0253 cm/s  0.0249 %g
1838: CA: CA Highway Patrol Office, San Jose Area (National Strong-Motion Program)
     Coordinates: N37.38 W121.91 Dist: 293.3 km 
     HNE 0.0289 cm/s  0.0275 %g
     HNN 0.0331 cm/s  0.0245 %g
1839: CA: Campbell FS#11 Santa Clara County (National Strong-Motion Program)
     Coordinates: N37.29 W121.94 Dist: 298.4 km 
     HNE 0.0247 cm/s  0.0247 %g
     HNN 0.0185 cm/s  0.0231 %g
1842: CA: Livermore FS#7 (National Strong-Motion Program)
     Coordinates: N37.69 W121.78 Dist: 275.5 km 
     HNE 0.0295 cm/s  0.0303 %g
     HNN 0.0225 cm/s  0.0243 %g
1844: CA: Contra Costa Fire Station #4 (National Strong-Motion Program)
     Coordinates: N37.89 W122.03 Dist: 295.0 km 
     HNE 0.0321 cm/s  0.0310 %g
     HNN 0.0258 cm/s  0.0226 %g
1846: CA: Contra Costa FS#11, Clayton (National Strong-Motion Program)
     Coordinates: N37.98 W121.93 Dist: 285.6 km 
     HNE 0.0155 cm/s  0.0167 %g
     HNN 0.0151 cm/s  0.0158 %g
2001: NV: Hawthorne; Ammunition Depot (National Strong-Motion Program)
     Coordinates: N38.55 W118.65 Dist: 59.5 km 
     HNE 0.5430 cm/s  0.8305 %g
     HNZ 0.2413 cm/s  0.5658 %g
     HNN 0.6980 cm/s  0.8682 %g
2016: NV: Gabbs; Fire Station (National Strong-Motion Program)
     Coordinates: N38.86 W117.93 Dist: 114.8 km 
     HNE 0.7258 cm/s  0.7373 %g
     HNZ 0.3309 cm/s  0.3930 %g
     HNN 0.4799 cm/s  0.6906 %g
2020: NV: Yerington; Mason Valley Wildlife Area (National Strong-Motion Program)
     Coordinates: N39.08 W119.12 Dist: 124.5 km 
     HNE 0.7240 cm/s  0.5929 %g
     HNZ 0.2483 cm/s  0.1473 %g
     HNN 0.7684 cm/s  0.3893 %g
54428: Chalfant - Zack Ranch (California Geological Survey)
     Coordinates: N37.66 W118.40 Dist: 45.9 km 
     HNE 1.3880 cm/s  2.0128 %g
     HNZ 0.6140 cm/s  0.8195 %g
     HNN 1.8290 cm/s  2.9657 %g
54933: Lake Crowley - Long Valley Dam Downstrm (California Geological Survey)
     Coordinates: N37.59 W118.70 Dist: 46.9 km 
     HNE 0.7160 cm/s  1.7932 %g
     HNZ 0.1830 cm/s  0.5854 %g
     HNN 0.5060 cm/s  1.4999 %g
55157: Lee Vining - Grant Lake Grounds (California Geological Survey)
     Coordinates: N37.86 W119.10 Dist: 40.7 km 
     HNZ 0.4210 cm/s  1.0554 %g
     HN2 1.6140 cm/s  2.3213 %g
     HN3 0.7780 cm/s  1.7858 %g
BAK: Calstate Bakersfield (SCSN and TriNet)
     Coordinates: N35.34 W119.10 Dist: 298.2 km 
     HHE 0.0563 cm/s (T)  0.0659 %g (T)
     HHZ 0.0151 cm/s (T)  0.0232 %g (T)
     HHN 0.0486 cm/s (T)  0.0460 %g (T)
BDM: Black Diamond Mines Park (Berkeley Digital Seismic Network)
     Coordinates: N37.95 W121.87 Dist: 279.9 km 
     HLE 0.0553 cm/s  0.0300 %g
     HLZ 0.0376 cm/s  0.0240 %g
     HLN 0.0420 cm/s  0.0314 %g
BKS: Byerly Seismographic Vault (Berkeley Digital Seismic Network)
     Coordinates: N37.88 W122.24 Dist: 312.9 km 
     HLE 0.0224 cm/s  0.0126 %g
     HLZ 0.0102 cm/s  0.0075 %g
     HLN 0.0168 cm/s  0.0091 %g
CADB: Anderson Dam (Northern California Seismic Network)
     Coordinates: N37.16 W121.63 Dist: 276.7 km 
     HNE 0.0129 cm/s  0.0133 %g
     HNN 0.0164 cm/s  0.0169 %g
CAL: Calaveras Reservoir (Northern California Seismic Network)
     Coordinates: N37.45 W121.80 Dist: 282.0 km 
     HNE 0.0338 cm/s  0.0370 %g
     HNN 0.0261 cm/s  0.0246 %g
CBP: Brushy Peak (Northern California Seismic Network)
     Coordinates: N37.75 W121.71 Dist: 268.0 km 
     HNE 0.0475 cm/s  0.0613 %g
     HNN 0.0408 cm/s  0.0611 %g
CBR: Bollinger Canyon (Northern California Seismic Network)
     Coordinates: N37.82 W122.06 Dist: 298.3 km 
     ADE 0.0307 cm/s  0.0293 %g
     ADN 0.0248 cm/s  0.0275 %g
CCC: Christmas Canyon China Lake (SCSN and TriNet)
     Coordinates: N35.52 W117.36 Dist: 299.7 km 
     HHE 0.0516 cm/s (T)  0.0166 %g (T)
     HHZ 0.0301 cm/s (T)  0.0094 %g (T)
     HHN 0.0378 cm/s (T)  0.0202 %g (T)
CCO: Coe Ranch (Northern California Seismic Network)
     Coordinates: N37.26 W121.67 Dist: 277.2 km 
     ADE 0.0282 cm/s  0.0317 %g
     ADN 0.0256 cm/s  0.0247 %g
CDOB: Doolan Road (Northern California Seismic Network)
     Coordinates: N37.73 W121.83 Dist: 279.2 km 
     HNE 0.0555 cm/s (T)  0.0790 %g (T)
     HNN 0.0549 cm/s (T)  0.0642 %g (T)
CHR: Mt. Hamilton Road (Northern California Seismic Network)
     Coordinates: N37.37 W121.77 Dist: 281.5 km 
     HNE 0.0236 cm/s  0.0254 %g
     HNN 0.0181 cm/s  0.0213 %g
CLC: China Lake (SCSN and TriNet)
     Coordinates: N35.82 W117.60 Dist: 261.9 km 
     HHE 0.0398 cm/s  0.0073 %g
     HHZ 0.0189 cm/s  0.0036 %g
     HHN 0.0237 cm/s  0.0044 %g
CMB: Columbia College (Berkeley Digital Seismic Network)
     Coordinates: N38.03 W120.39 Dist: 149.9 km 
     HLE 0.0441 cm/s  0.1745 %g
     HLZ 0.0364 cm/s  0.0575 %g
     HLN 0.0592 cm/s  0.1704 %g
CRH: Round Hill (Northern California Seismic Network)
     Coordinates: N37.86 W121.99 Dist: 291.7 km 
     HNE 0.0245 cm/s  0.0226 %g
     HNN 0.0337 cm/s  0.0309 %g
CRPB: Russellman Park (Northern California Seismic Network)
     Coordinates: N37.91 W121.91 Dist: 283.8 km 
     HNE 0.0113 cm/s  0.0147 %g
     HNN 0.0131 cm/s  0.0167 %g
CTA: Taylor (Northern California Seismic Network)
     Coordinates: N38.03 W122.02 Dist: 292.9 km 
     HNE 0.0277 cm/s  0.0337 %g
     HNN 0.0178 cm/s  0.0229 %g
CVS: Carmenet Vineyards (Berkeley Digital Seismic Network)
     Coordinates: N38.35 W122.46 Dist: 333.2 km 
     HLE 0.0225 cm/s (T)  0.0098 %g (T)
     HLZ 0.0102 cm/s (T)  0.0047 %g (T)
     HLN 0.0150 cm/s (T)  0.0061 %g (T)
CWC: Cottonwood Creek (SCSN and TriNet)
     Coordinates: N36.44 W118.08 Dist: 182.2 km 
     HHE 0.0588 cm/s  0.0511 %g
     HHZ 0.0306 cm/s  0.0329 %g
     HHN 0.0485 cm/s  0.0518 %g
FUR: Furnace Creek (SCSN and TriNet)
     Coordinates: N36.47 W116.86 Dist: 235.2 km 
     HHE 0.1114 cm/s  0.0659 %g
     HHZ 0.0450 cm/s  0.0289 %g
     HHN 0.0928 cm/s  0.0470 %g
GRA: Grapevine Ranger Station, Death Valley (SCSN and TriNet)
     Coordinates: N36.98 W117.36 Dist: 163.2 km 
     HHE 0.2320 cm/s  0.1396 %g
     HHZ 0.1220 cm/s  0.0918 %g
     HHN 0.2255 cm/s  0.1536 %g
HOPS: Hopland Field Station (Berkeley Digital Seismic Network)
     Coordinates: N38.99 W123.07 Dist: 398.4 km 
     HLE 0.0094 cm/s  0.0028 %g
     HLZ 0.0053 cm/s  0.0021 %g
     HLN 0.0093 cm/s  0.0029 %g
ISA: Isabella (SCSN and TriNet)
     Coordinates: N35.66 W118.47 Dist: 261.1 km 
     HHE 0.0505 cm/s  0.0518 %g
     HHZ 0.0373 cm/s  0.0810 %g
     HHN 0.0303 cm/s  0.0577 %g
JECB: Eureka Canyon (Northern California Seismic Network)
     Coordinates: N37.05 W121.81 Dist: 296.3 km 
     HNE 0.0185 cm/s  0.0210 %g
     HNN 0.0222 cm/s  0.0202 %g
JLAB: Laurel Hill (Northern California Seismic Network)
     Coordinates: N37.15 W121.73 Dist: 286.1 km 
     HNE 0.0233 cm/s  0.0257 %g
     HNN 0.0260 cm/s  0.0281 %g
JRC2: Joshua Ridge, China Lake (SCSN and TriNet)
     Coordinates: N35.98 W117.81 Dist: 238.0 km 
     HHE 0.0517 cm/s  0.0313 %g
     HHZ 0.0170 cm/s  0.0129 %g
     HHN 0.0313 cm/s  0.0226 %g
LRL: Laurel Mtn Radio Fac (SCSN and TriNet)
     Coordinates: N35.48 W117.68 Dist: 294.6 km 
     HHE 0.0282 cm/s  0.0142 %g
     HHZ 0.0090 cm/s  0.0075 %g
     HHN 0.0112 cm/s  0.0176 %g
MAG: Sce Magundon Plant (SCSN and TriNet)
     Coordinates: N35.36 W118.92 Dist: 294.7 km 
     HLE 0.0424 cm/s  0.0287 %g
     HLZ 0.0294 cm/s  0.0260 %g
     HLN 0.0402 cm/s  0.0297 %g
MCB: Casa Benchmark (Northern California Seismic Network)
     Coordinates: N37.64 W118.90 Dist: 44.8 km 
     HHE 0.6196 cm/s  1.1374 %g
     HHN 0.7554 cm/s  0.8330 %g
     HNE 0.7109 cm/s  1.1390 %g
     HNN 0.7644 cm/s  0.8917 %g
MHC: Lick Observatory (Berkeley Digital Seismic Network)
     Coordinates: N37.34 W121.64 Dist: 271.7 km 
     HLZ 0.0192 cm/s  0.0148 %g
     HLN 0.0475 cm/s  0.0388 %g
MLAC: Mammoth (SCSN and TriNet)
     Coordinates: N37.63 W118.84 Dist: 44.4 km 
     HHE 0.5287 cm/s  0.6449 %g
     HHZ 0.3681 cm/s  0.5683 %g
     HHN 0.7506 cm/s  0.7020 %g
MMLB: Mammoth Lakes (Northern California Seismic Network)
     Coordinates: N37.66 W118.98 Dist: 47.0 km 
     HHE 0.7919 cm/s  1.0880 %g
     HHN 0.8685 cm/s  1.3509 %g
     HNE 0.7635 cm/s  1.0238 %g
     HNN 0.8507 cm/s  1.3007 %g
MNRC: McLaughlin Mine (Berkeley Digital Seismic Network)
     Coordinates: N38.88 W122.44 Dist: 342.4 km 
     HLE 0.0252 cm/s (T)  0.0101 %g (T)
     HLZ 0.0174 cm/s (T)  0.0070 %g (T)
     HLN 0.0212 cm/s (T)  0.0088 %g (T)
MOD: Modoc Plateau (Berkeley Digital Seismic Network)
     Coordinates: N41.90 W120.30 Dist: 453.9 km 
     HLE 0.0176 cm/s (T)  0.0059 %g (T)
     HLZ 0.0078 cm/s (T)  0.0026 %g (T)
     HLN 0.0129 cm/s (T)  0.0038 %g (T)
MPM: Manuel Prospect Mine (SCSN and TriNet)
     Coordinates: N36.06 W117.49 Dist: 241.2 km 
     HHE 0.0680 cm/s (M)  0.0153 %g (M)
     HHZ 0.0226 cm/s (M)  0.0056 %g (M)
     HHN 0.0379 cm/s (M)  0.0100 %g (M)
NHM: Hamilton Ranch (Northern California Seismic Network)
     Coordinates: N38.15 W121.80 Dist: 274.6 km 
     HNE 0.0217 cm/s  0.0276 %g
     HNN 0.0298 cm/s  0.0338 %g
ORV: Oroville Dam (Berkeley Digital Seismic Network)
     Coordinates: N39.55 W121.50 Dist: 299.1 km 
     HLE 0.0198 cm/s  0.0162 %g
     HLZ 0.0224 cm/s  0.0131 %g
     HLN 0.0175 cm/s  0.0155 %g
PACP: Pacheco Peak (Berkeley Digital Seismic Network)
     Coordinates: N37.01 W121.29 Dist: 255.9 km 
     HLE 0.1415 cm/s (T)  0.1530 %g (T)
     HLZ 0.0500 cm/s (T)  0.0469 %g (T)
     HLN 0.1096 cm/s (T)  0.1328 %g (T)
PKD: Bear Valley Ranch (Berkeley Digital Seismic Network)
     Coordinates: N35.95 W120.54 Dist: 282.8 km 
     HLE 0.0277 cm/s  0.0144 %g
     HLZ 0.0083 cm/s  0.0066 %g
     HLN 0.0247 cm/s  0.0157 %g
PMPB: Monarch Peak (Northern California Seismic Network)
     Coordinates: N36.22 W120.80 Dist: 274.2 km 
     HHE 0.0568 cm/s (T)  0.0512 %g (T)
     HHN 0.0383 cm/s (T)  0.0365 %g (T)
     HNE 0.0606 cm/s (T)  0.1003 %g (T)
     HNN 0.0389 cm/s (T)  0.0377 %g (T)
RCT: Rector (SCSN and TriNet)
     Coordinates: N36.31 W119.24 Dist: 195.7 km 
     HHE 0.0751 cm/s  0.1034 %g
     HHZ 0.0308 cm/s  0.0929 %g
     HHN 0.0613 cm/s  0.0826 %g
SAO: San Andreas Geophysical Observatory (Berkeley Digital Seismic Network)
     Coordinates: N36.76 W121.45 Dist: 281.4 km 
     HLE 0.0584 cm/s  0.0282 %g
     HLZ 0.0154 cm/s  0.0127 %g
     HLN 0.0326 cm/s  0.0215 %g
SLA: Slate Mountain (SCSN and TriNet)
     Coordinates: N35.89 W117.28 Dist: 266.3 km 
     HHE 0.1032 cm/s (T)  0.0248 %g (T)
     HHZ 0.0368 cm/s (T)  0.0147 %g (T)
     HHN 0.0411 cm/s (T)  0.0177 %g (T)
SPG: Springville (SCSN and TriNet)
     Coordinates: N36.14 W118.81 Dist: 208.3 km 
     HHE 0.0371 cm/s  0.0478 %g
     HHZ 0.0266 cm/s  0.0428 %g
     HHN 0.0333 cm/s  0.0493 %g
TEH: Cattani Ranch, Tehachapi (SCSN and TriNet)
     Coordinates: N35.29 W118.42 Dist: 302.6 km 
     HHE 0.0394 cm/s (T)  0.0394 %g (T)
     HHZ 0.0164 cm/s (T)  0.0180 %g (T)
     HHN 0.0164 cm/s (T)  0.0277 %g (T)
TIN: Tinemaha (SCSN and TriNet)
     Coordinates: N37.05 W118.23 Dist: 113.3 km 
     HHE 0.3159 cm/s  0.1841 %g
     HHZ 0.1414 cm/s  0.1262 %g
     HHN 0.1779 cm/s  0.1499 %g
VES: Vestal (SCSN and TriNet)
     Coordinates: N35.84 W119.08 Dist: 243.4 km 
     HHE 0.0605 cm/s  0.0490 %g
     HHZ 0.0518 cm/s  0.0355 %g
     HHN 0.0551 cm/s  0.0526 %g
WBS: Bird Spring (SCSN and TriNet)
     Coordinates: N35.54 W118.14 Dist: 278.7 km 
     HHE 0.0434 cm/s (T)  0.0907 %g (T)
     HHZ 0.0225 cm/s (T)  0.0388 %g (T)
     HHN 0.0380 cm/s (T)  0.0769 %g (T)
WDC: Whiskeytown (Berkeley Digital Seismic Network)
     Coordinates: N40.58 W122.54 Dist: 438.6 km 
     HLE 0.0070 cm/s  0.0031 %g
     HLZ 0.0074 cm/s  0.0031 %g
     HLN 0.0095 cm/s  0.0034 %g
WENL: Wente Vineyards (Berkeley Digital Seismic Network)
     Coordinates: N37.62 W121.76 Dist: 274.3 km 
     HLE 0.0363 cm/s  0.0369 %g
     HLZ 0.0246 cm/s  0.0364 %g
YBH: Yreka Blue Horn Mine (Berkeley Digital Seismic Network)
     Coordinates: N41.73 W122.71 Dist: 538.2 km 
     HLE 0.0060 cm/s  0.0013 %g
     HLZ 0.0041 cm/s  0.0012 %g
     HLN 0.0044 cm/s  0.0016 %g

Explanation of Flags
M - Manually flagged
T - Outlier
G - Amplitude off scale or below noise
I - Incomplete data
N - Not in list of known stations