This event was reviewed by an analyst and confirmed.
| Type | Earthquake |
| Magnitude | 3.5 MLv |
| Local datetime | 1985/02/13 09:32 |
| Universal datetime | 1985/02/13 08:32 |
| Latitude | 50.85 ° ± 19 km |
| Longitude | 1.68 ° ± 44 km |
| Depth | 5 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 |
|---|---|---|
Calais 
|
18 | 73911 |
| Boulogne-sur-Mer
|
15 | 40874 |
| Outreau
|
18 | 13422 |
| Saint-Martin-Boulogne
|
14 | 11204 |
| Étaples
|
36 | 10865 |
| Marck
|
22 | 10676 |
| Le Portel
|
17 | 9240 |
| Wimereux
|
9 | 6575 |
| Guînes
|
13 | 5626 |
| Audruicq
|
29 | 5412 |
| Oye-Plage
|
29 | 5373 |
| Coulogne
|
16 | 5372 |
| Marquise
|
4 | 5088 |
| Saint-Étienne-au-Mont
|
21 | 5076 |
| Grand-Fort-Philippe
|
34 | 5048 |
Past seismicity
This map shows only the 50 most significant earthquakes around this event.
Event details
Parameters
| Evaluation status | final |
|---|---|
| RMS | 0.9 |
| Azimuthal gap | |
| Number of stations used | 24 |
| Number of phases used | 8 |
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 |
|---|---|---|---|---|---|---|---|
| RD | FLN | Pn | 08:33:10.0 | -0.08 | 215 | 2.51 | Manual |
| RD | FLN | Pg | 08:33:18.79 | 1.35 | 215 | 2.51 | Manual |
| RD | FLN | Sn | 08:33:42.80 | -0.24 | 215 | 2.51 | Manual |
| RD | LDF | Pn | 08:33:10.10 | -0.36 | 208 | 2.54 | Manual |
| RD | LDF | Pg | 08:33:19.0 | 1.04 | 208 | 2.54 | Manual |
| RD | LDF | Sn | 08:33:43.20 | -0.55 | 208 | 2.54 | Manual |
| RD | GRR | Pn | 08:33:15.40 | -0.76 | 215 | 2.97 | Manual |
| RD | GRR | Sn | 08:33:54.20 | -0.19 | 215 | 2.97 | Manual |