This event was reviewed by an analyst and confirmed.
| Type | Earthquake |
| Magnitude | 2.5 MLv |
| Local datetime | 1987/12/11 13:21 |
| Universal datetime | 1987/12/11 12:21 |
| Latitude | 44.84 ° ± 1 km |
| Longitude | 4.97 ° ± 2 km |
| Depth | 10 km (operator assigned) ± 0.0 km |
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Testify !Near cities
This table shows only the most populated cities around the epicenter.
| Name | Distance (km) | Population |
|---|---|---|
Valence 
|
10 | 63714 |
| Romans-sur-Isère
|
24 | 33160 |
| Bourg-lès-Valence
|
15 | 19975 |
| Guilherand-Granges
|
13 | 10961 |
| Portes-lès-Valence
|
8 | 10610 |
| Tournon-sur-Rhône
|
27 | 10307 |
| Bourg-de-Péage
|
21 | 10205 |
| Livron-sur-Drôme
|
12 | 9104 |
| Crest
|
13 | 8505 |
| Saint-Péray
|
16 | 7692 |
| Chabeuil
|
8 | 6875 |
| Loriol-sur-Drôme
|
16 | 6593 |
| Saint-Marcel-lès-Valence
|
15 | 6236 |
| Chatuzange-le-Goubet
|
21 | 5516 |
| Étoile-sur-Rhône
|
8 | 5478 |
Past seismicity
This map shows only the 50 most significant earthquakes around this event.
Event details
Parameters
| Evaluation status | final |
|---|---|
| RMS | 1.5 |
| Azimuthal gap | 96 ° |
| Number of stations used | 37 |
| Number of phases used | 75 |
Webservices
The data of this event are available in various formats (QuakeML, GeoJSON and text) through the following links :
Phases
| Network | Station | Phase | Time | Residual (s) | Azimuth (°) | Distance (°) | Mode |
|---|---|---|---|---|---|---|---|
| FR | PRA5 | Pn | 12:22:13.80 | 0.82 | 172 | 1.05 | Manual |
| FR | GAN1 | Pn | 12:22:14.60 | 1.2 | 141 | 1.08 | Manual |
| FR | VIL6 | Pn | 12:22:15.30 | 1.28 | 151 | 1.13 | Manual |
| FR | TRE2 | Pn | 12:22:17.40 | 1.45 | 164 | 1.27 | Manual |
| FR | LBL | Pn | 12:22:17.50 | 1.33 | 288 | 1.28 | Manual |
| FR | LBL | Pg | 12:22:18.79 | 1.09 | 288 | 1.28 | Manual |
| FR | LBL | Sg | 12:22:35.40 | -0.21 | 288 | 1.28 | Manual |
| FR | PUY4 | Pn | 12:22:19.60 | 1.68 | 158 | 1.41 | Manual |
| RD | LPG | Pn | 12:22:19.79 | 1.77 | 62 | 1.42 | Manual |
| RD | LPL | Pg | 12:22:20.90 | 0.73 | 61 | 1.42 | Manual |
| RD | LPG | Pg | 12:22:21.0 | 0.77 | 62 | 1.42 | Manual |
| RD | LPL | Sg | 12:22:39.30 | -0.61 | 61 | 1.42 | Manual |
| RD | LPG | Sg | 12:22:39.30 | -0.72 | 62 | 1.42 | Manual |
| FR | TAV7 | Pn | 12:22:19.79 | 1.31 | 147 | 1.45 | Manual |
| FR | TAV7 | Sg | 12:22:39.59 | -1.55 | 147 | 1.45 | Manual |
| FR | PLDF | Pn | 12:22:21.0 | 2.23 | 320 | 1.47 | Manual |
| FR | PLDF | Pg | 12:22:22.10 | 0.83 | 320 | 1.47 | Manual |
| FR | PLDF | Sg | 12:22:42.10 | 0.28 | 320 | 1.47 | Manual |
| FR | PYM | Pg | 12:22:25.20 | 0.49 | 304 | 1.66 | Manual |
| FR | PYM | Sg | 12:22:47.90 | 0.14 | 304 | 1.66 | Manual |
| RD | LRG | Pn | 12:22:22.30 | 0.32 | 144 | 1.71 | Manual |
| RD | LRG | Sn | 12:22:43.70 | -1.46 | 144 | 1.71 | Manual |
| RD | LRG | Sg | 12:22:47.40 | -2.12 | 144 | 1.71 | Manual |
| RD | FRF | Pn | 12:22:22.80 | 0.15 | 136 | 1.76 | Manual |
| RD | FRF | Sn | 12:22:44.20 | -2.19 | 136 | 1.76 | Manual |
| RD | FRF | Sg | 12:22:48.50 | -2.61 | 136 | 1.76 | Manual |
| FR | AGO | Pn | 12:22:25.70 | 2.88 | 314 | 1.77 | Manual |
| FR | AGO | Pg | 12:22:27.70 | 0.81 | 314 | 1.77 | Manual |
| FR | AGO | Sg | 12:22:51.20 | -0.32 | 314 | 1.77 | Manual |
| RD | LMR | Pn | 12:22:25.60 | 1.42 | 143 | 1.87 | Manual |
| RD | LMR | Sn | 12:22:47.80 | -1.43 | 143 | 1.87 | Manual |
| RD | SMF | Pn | 12:22:27.60 | 2.11 | 337 | 1.97 | Manual |
| RD | SMF | Pg | 12:22:32.9 | 1.49 | 337 | 1.97 | Manual |
| RD | SMF | Sg | 12:22:57.0 | -0.92 | 337 | 1.97 | Manual |
| RD | SBF | Pg | 12:22:30.60 | -0.99 | 118 | 2.02 | Manual |
| RD | SBF | Sg | 12:22:58.60 | -1.03 | 118 | 2.02 | Manual |
| RD | CAF | Pn | 12:22:28.20 | 1.36 | 273 | 2.07 | Manual |
| RD | CAF | Pg | 12:22:32.30 | -0.18 | 273 | 2.07 | Manual |
| RD | CAF | Sg | 12:22:59.90 | -1.28 | 273 | 2.07 | Manual |
| RD | MAF | Sg | 12:23:03.40 | -1.46 | 310 | 2.18 | Manual |
| RD | LBF | Pn | 12:22:32.9 | 2.78 | 342 | 2.25 | Manual |
| RD | AVF | Pn | 12:22:32.9 | 2.76 | 330 | 2.25 | Manual |
| RD | LBF | Pg | 12:22:36.9 | 0.17 | 342 | 2.25 | Manual |
| RD | AVF | Pg | 12:22:37.9 | 1.14 | 330 | 2.25 | Manual |
| RD | AVF | Sg | 12:23:05.30 | -1.89 | 330 | 2.25 | Manual |
| RD | LBF | Sg | 12:23:05.60 | -1.54 | 342 | 2.25 | Manual |
| RD | BGF | Pn | 12:22:31.0 | 1.42 | 320 | 2.27 | Manual |
| RD | BGF | Pg | 12:22:37.9 | 0.79 | 320 | 2.27 | Manual |
| RD | BGF | Sg | 12:23:07.30 | -0.49 | 320 | 2.27 | Manual |
| RD | TCF | Pg | 12:22:39.80 | 0.73 | 308 | 2.42 | Manual |
| RD | TCF | Sg | 12:23:10.60 | -2 | 308 | 2.42 | Manual |
| RD | SSF | Pg | 12:22:40.0 | 0.48 | 336 | 2.44 | Manual |
| RD | SSF | Sg | 12:23:11.80 | -1.59 | 336 | 2.44 | Manual |
| RD | RJF | Pg | 12:22:40.59 | 0.15 | 282 | 2.49 | Manual |
| RD | RJF | Sg | 12:23:11.80 | -3.16 | 282 | 2.49 | Manual |
| RD | LOR | Pn | 12:22:35.0 | 1.7 | 343 | 2.55 | Manual |
| RD | LOR | Pg | 12:22:42.10 | 0.63 | 343 | 2.55 | Manual |
| RD | LOR | Sg | 12:23:15.40 | -1.36 | 343 | 2.55 | Manual |
| RD | LPO | Pg | 12:22:44.70 | 0.32 | 268 | 2.7 | Manual |
| RD | LPO | Sg | 12:23:18.90 | -2.9 | 268 | 2.7 | Manual |
| FR | GRC | Pg | 12:22:47.0 | 1.03 | 332 | 2.79 | Manual |
| FR | GRC | Sg | 12:23:27.0 | 2.43 | 332 | 2.79 | Manual |
| RD | LSF | Pg | 12:22:47.0 | 0.8 | 301 | 2.8 | Manual |
| RD | LSF | Sg | 12:23:21.30 | -3.66 | 301 | 2.8 | Manual |
| RD | LFF | Pg | 12:22:50.20 | 0.03 | 273 | 3.01 | Manual |
| RD | LFF | Sg | 12:23:28.60 | -3.25 | 273 | 3.01 | Manual |
| RD | BSF | Pn | 12:22:43.70 | 0.91 | 22 | 3.24 | Manual |
| RD | BSF | Pg | 12:22:54.0 | -0.6 | 22 | 3.24 | Manual |
| RD | BSF | Sg | 12:23:36.0 | -3.57 | 22 | 3.24 | Manual |
| RD | HAU | Pn | 12:22:44.90 | 1.3 | 16 | 3.3 | Manual |
| RD | HAU | Pg | 12:22:55.30 | -0.4 | 16 | 3.3 | Manual |
| RD | HAU | Sg | 12:23:40.9 | -1.41 | 16 | 3.3 | Manual |
| RD | CDF | Pn | 12:22:52.0 | 0.24 | 23 | 3.91 | Manual |
| RD | CDF | Pg | 12:23:05.60 | -1.45 | 23 | 3.91 | Manual |
| RD | CDF | Sg | 12:23:59.0 | -2.22 | 23 | 3.91 | Manual |