| USGS National-Strong Motion Program | |||||||||||||||
| Preliminary Corrected Peak Ground Acceleration and Velocity Values for January 13, 2001, El Salvador Earthquake (posted 07/20/2001; updated 09/27/2002) | |||||||||||||||
| Mw 7.6 (6.4 mb, 7.8 Ms, 7.5 Me), 01/13/2001 17:33:32 UTC (11:33:32 AM Local Time), 13.049N, 88.660W, depth 60 km (NEIC) | |||||||||||||||
| Code | S/N | Name | Owner | Lat | Long | Dist | Az | Ch | Sensor | Orient | PGA | PGV | Geology (From Official Geologic Map | Period | |
| deg | deg | km | deg | No | type | deg | cm/s/s | cm/s | of the Republic of El Salvador) | ||||||
| SM | 4355 | Santiago De Maria | CIG | 13.486 | -88.471 | 52.5 | 23 | 1 | SMA-1 | 90 | -702.40 | 40.36 | Acid pyroclastics, | Quaternary | |
| 2 | SMA-1 | UP | 431.70 | -16.09 | subordinate volcanic epiclastics | ||||||||||
| 3 | SMA-1 | 360 | -864.20 | -27.81 | (brown color tuffs). | ||||||||||
| QC | 6987 | Presa 15 De Septiembre Dam | CIG | 13.616 | -88.550 | 63.9 | 11 | 1 | SMA-1 | 90 | -183.00 | 16.03 | Sedimentary deposits. | Quaternary | |
| Intalled on ground, beside the dam | 2 | SMA-1 | UP | 120.10 | -10.24 | ||||||||||
| 3 | SMA-1 | 360 | 149.20 | -23.47 | |||||||||||
| MG | 4359 | San Miguel | CIG | 13.475 | -88.183 | 70.0 | 48 | 1 | SMA-1 | 360 | 118.10 | 12.10 | Acid pyroclastics, | Quaternary | |
| 2 | SMA-1 | UP | -87.63 | 5.99 | subordinate volcanic epiclastics | ||||||||||
| 3 | SMA-1 | 270 | 133.20 | -12.77 | (brown color tuffs). | ||||||||||
| SE | 7147 | Sensuntepeque | CIG | 13.867 | -88.663 | 90.5 | 360 | 1 | SMA-1 | 270 | -59.59 | 9.14 | Volcanic epiclastics and pyroclastics, | Tertiary | |
| 2 | SMA-1 | UP | -56.62 | 6.24 | locally basic | ||||||||||
| 3 | SMA-1 | 180 | 80.58 | -8.46 | – intermediate effusives intercalated. | ||||||||||
| OB | 4364 | Observatorio | CIG | 13.681 | -89.198 | 91.0 | 320 | 1 | SMA-1 | 180 | 419.50 | -38.37 | Acid pyroclastics, | Quaternary | |
| 2 | SMA-1 | UP | -300.50 | 13.02 | subordinate volcanic epiclastics | ||||||||||
| 3 | SMA-1 | 90 | -372.00 | -26.16 | (brown color tuffs). | ||||||||||
| DB | 7157 | Ciudadela Don Bosco | CIG | 13.733 | -89.150 | 92.4 | 325 | 1 | SMA-1 | 270 | -245.20 | 19.21 | White earth: acid pyroclastics and subordinate | Quaternary | |
| 2 | SMA-1 | UP | 156.50 | -11.31 | volcanic epiclastics, locally acid effusives. | ||||||||||
| 3 | SMA-1 | 180 | -220.70 | -23.24 | |||||||||||
| SS | 7158 | Seminario San Jose De La Montana | CIG | 13.705 | -89.225 | 94.9 | 320 | 1 | SMA-1 | 180 | 266.80 | -14.99 | Acid pyroclastics, | Quaternary | |
| Installed at borehole´s top | 2 | SMA-1 | UP | -165.20 | -13.17 | subordinate volcanic epiclastics | |||||||||
| 3 | SMA-1 | 90 | 246.70 | 20.32 | (brown color tuffs). | ||||||||||
| RF | 7133 | Relaciones Exteriores | CIG | 13.692 | -89.250 | 95.6 | 318 | 1 | SMA-1 | 180 | 203.90 | -19.46 | Over lava flows. | Quaternary | |
| Installed at borehole´s bottom | 2 | SMA-1 | UP | 184.00 | 13.90 | ||||||||||
| 12.5 m depth. | 3 | SMA-1 | 90 | 204.90 | -16.62 | ||||||||||
| RS | 7134 | Relaciones Exteriores | CIG | 13.692 | -89.250 | 95.6 | 318 | 1 | SMA-1 | 180 | 317.10 | -27.58 | Acid pyroclastics, | Quaternary | |
| Installed at borehole´s top | 2 | SMA-1 | UP | 323.10 | 15.34 | subordinate volcanic epiclastics | |||||||||
| 3 | SMA-1 | 90 | -298.20 | 22.92 | (brown color tuffs). | ||||||||||
| VS | 7145 | Viveros De Dua | CIG | 13.737 | -89.209 | 96.6 | 322 | 1 | SMA-1 | 90 | -301.40 | -21.88 | Acid pyroclastics, | Quaternary | |
| Installed at borehole´s top | 2 | SMA-1 | UP | 207.00 | -12.53 | subordinate volcanic epiclastics | |||||||||
| 3 | SMA-1 | 360 | -305.50 | -37.29 | (brown color tuffs). | ||||||||||
| CU | 7135 | Cutuco | CIG | 13.333 | -87.817 | 96.6 | 71 | 1 | SMA-1 | 270 | 77.66 | 8.62 | Acid pyroclastics, volcanic epiclastics. | Tertiary | |
| 2 | SMA-1 | UP | 62.17 | 3.99 | |||||||||||
| 3 | SMA-1 | 180 | -76.26 | -13.84 | |||||||||||
| ST | 7153 | Santa Tecla | CIG | 13.675 | -89.300 | 98.0 | 315 | 1 | SMA-1 | 180 | -587.70 | -60.45 | Basic-intermediate effusives, | Quaternary | |
| 2 | SMA-1 | UP | 463.60 | 21.58 | subordinate pyroclastics. | ||||||||||
| 3 | SMA-1 | 90 | 761.40 | -43.32 | |||||||||||
| CA | 7146 | Acajutla Cepa | CIG | 13.567 | -89.833 | 139.4 | 294 | 1 | SMA-1 | 180 | -106.30 | 18.56 | Acid – intermediate intrusive rocks. | Tertiary | |
| 2 | SMA-1 | UP | 48.73 | -4.18 | |||||||||||
| 3 | SMA-1 | 90 | 95.90 | 14.57 | |||||||||||
| SA | 7149 | Santa Ana | CIG | 13.992 | -89.550 | 142.0 | 317 | 1 | SMA-1 | 270 | -83.63 | -13.57 | Acid pyroclastics, | Quaternary | |
| 2 | SMA-1 | UP | -50.13 | -6.24 | subordinate volcanic epiclastics | ||||||||||
| 3 | SMA-1 | 180 | -132.90 | 19.53 | (brown color tuffs). All over lava flows. | ||||||||||
| AH | 4354 | Ahuachapan | CIG | 13.925 | -89.805 | 157.4 | 308 | 1 | SMA-1 | 360 | -210.00 | 16.55 | Acid pyroclastics, | Quaternary | |
| 2 | SMA-1 | UP | 121.40 | -10.75 | subordinate volcanic epiclastics | ||||||||||
| 3 | SMA-1 | 270 | -143.10 | -14.88 | (brown color tuffs). | ||||||||||
| CM | 7151 | Cessa Metapan | CIG | 14.333 | -89.450 | 165.8 | 329 | 1 | SMA-1 | 270 | -12.39 | 2.20 | Acid – intermediate intrusive rocks. | Tertiary | |
| sensor inoperative | 2 | SMA-1 | UP | ||||||||||||
| 3 | SMA-1 | 180 | -13.56 | 1.75 | |||||||||||
| CIG = Centro De Investigaciones Geotecnicas | |||||||||||||||