| CESMD |
| Information for Strong-Motion Station |
| West Covina - Azusa & Fairgrove |
| CGS - CSMIP Station 23057 |
| Earthquakes recorded by this station |
| Latitude | 34.0430 N |
| Longitude | 117.9116 W |
| Elevation (m) | 164 |
| Site Geology | Thin alluvium over soft rock (shale) |
| Vs30 (m/sec) | 370 (inferred) |
| Site Class | C/D |
| Remarks/Notes | Site information sources |