This event was reviewed by an analyst and confirmed.
| Type | Earthquake |
| Magnitude | 3 MLv |
| Local datetime | 1999/08/31 20:00 |
| Universal datetime | 1999/08/31 18:00 |
| Latitude | 47.00 ° ± 7 km |
| Longitude | -1.78 ° ± 9 km |
| Depth | 5 km (operator assigned) ± 0.0 km |
Have you felt an earthquake ?
You can participate to science by bringing your testimony.
Testify !Near cities
This table shows only the most populated cities around the epicenter.
| Name | Distance (km) | Population |
|---|---|---|
Couëron 
|
26 | 21372 |
| Challans
|
19 | 20622 |
| Bouguenais
|
23 | 19331 |
| Pornic
|
25 | 15018 |
| Saint-Philbert-de-Grand-Lieu
|
12 | 8921 |
| Les Sorinières
|
25 | 8541 |
| Bouaye
|
18 | 7844 |
| Machecoul-Saint-Même
|
3 | 7473 |
| Sainte-Pazanne
|
10 | 6774 |
| Chaumes-en-Retz
|
20 | 6759 |
| La Montagne
|
22 | 6231 |
| Pont-Saint-Martin
|
22 | 6037 |
| Saint-Jean-de-Boiseau
|
22 | 5827 |
| La Chevrolière
|
17 | 5589 |
| Le Pellerin
|
25 | 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 | 19 |
| 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 | MFF | Pn | 18:01:14.20 | 0.44 | 109 | 1.19 | Manual |
| RD | MFF | Pg | 18:01:14.70 | 0.54 | 109 | 1.19 | Manual |
| RD | MFF | Sg | 18:01:29.70 | -1.1 | 109 | 1.19 | Manual |
| RD | QUIF | Pg | 18:01:16.40 | 0.07 | 315 | 1.31 | Manual |
| RD | QUIF | Sg | 18:01:33.30 | -1.25 | 315 | 1.31 | Manual |
| RD | SGMF | Pn | 18:01:16.20 | 0.23 | 338 | 1.36 | Manual |
| RD | SGMF | Pg | 18:01:18.20 | 0.99 | 338 | 1.36 | Manual |
| RD | SGMF | Sg | 18:01:36.9 | 0 | 338 | 1.36 | Manual |