This event was reviewed by an analyst and confirmed.
| Type | Earthquake |
| Magnitude | 2.7 MLv |
| Local datetime | 1985/12/18 06:37 |
| Universal datetime | 1985/12/18 05:37 |
| Latitude | 46.96 ° ± 3 km |
| Longitude | -1.92 ° ± 10 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 |
|---|---|---|
Challans 
|
15 | 20622 |
| Pornic
|
21 | 15018 |
| Saint-Hilaire-de-Riez
|
24 | 11169 |
| Saint-Philbert-de-Grand-Lieu
|
23 | 8921 |
| Saint-Jean-de-Monts
|
20 | 8634 |
| Bouaye
|
28 | 7844 |
| Saint-Gilles-Croix-de-Vie
|
30 | 7655 |
| Machecoul-Saint-Même
|
9 | 7473 |
| Sainte-Pazanne
|
16 | 6774 |
| Chaumes-en-Retz
|
21 | 6759 |
| La Montagne
|
31 | 6231 |
| Pont-Saint-Martin
|
33 | 6037 |
| Saint-Jean-de-Boiseau
|
30 | 5827 |
| La Chevrolière
|
28 | 5589 |
| Le Pellerin
|
30 | 5100 |
Past seismicity
This map shows only the 50 most significant earthquakes around this event.
Event details
Parameters
| Evaluation status | final |
|---|---|
| RMS | 1 |
| Azimuthal gap | |
| Number of stations used | 12 |
| 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 | LPF | Pg | 05:38:13.30 | 0.52 | 29 | 1.23 | Manual |
| RD | LPF | Sg | 05:38:31.50 | 1.63 | 29 | 1.23 | Manual |
| RD | MFF | Pg | 05:38:13.40 | -0.24 | 106 | 1.27 | Manual |
| RD | MFF | Sg | 05:38:31.50 | 0.14 | 106 | 1.27 | Manual |
| RD | GRR | Pg | 05:38:19.50 | -0.28 | 26 | 1.6 | Manual |
| RD | GRR | Sg | 05:38:42.0 | 0 | 26 | 1.6 | Manual |
| RD | LDF | Sg | 05:38:56.0 | -0.27 | 36 | 2.04 | Manual |
| RD | FLN | Sg | 05:38:55.20 | -1.45 | 28 | 2.05 | Manual |