This event was reviewed by an analyst and confirmed.
| Type | Earthquake |
| Magnitude | 2.8 MLv |
| Local datetime | 1983/02/04 00:52 |
| Universal datetime | 1983/02/03 23:52 |
| Latitude | 47.00 ° ± 3 km |
| Longitude | -0.96 ° ± 8 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 |
|---|---|---|
Cholet 
|
8 | 53917 |
| Sèvremoine
|
15 | 25414 |
| Beaupréau-en-Mauges
|
22 | 23228 |
| Montaigu-Vendée
|
26 | 20126 |
| Les Herbiers
|
16 | 15958 |
| Montrevault-sur-Èvre
|
29 | 15859 |
| Vallet
|
30 | 9015 |
| Essarts en Bocage
|
31 | 8931 |
| Mauléon
|
17 | 8519 |
| Clisson
|
26 | 7187 |
| Sèvremont
|
20 | 6486 |
| Mortagne-sur-Sèvre
|
1 | 5930 |
| Nueil-les-Aubiers
|
28 | 5541 |
| Chanverrie
|
6 | 5517 |
| Pouzauges
|
26 | 5514 |
Past seismicity
This map shows only the 50 most significant earthquakes around this event.
Event details
Parameters
| Evaluation status | final |
|---|---|
| RMS | 0.8 |
| Azimuthal gap | |
| Number of stations used | 14 |
| Number of phases used | 9 |
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 | Pg | 23:53:00.20 | -0.27 | 125 | 0.69 | Manual |
| RD | MFF | Sg | 23:53:11.10 | 1.01 | 125 | 0.69 | Manual |
| RD | LPF | Pg | 23:53:07.0 | 0.09 | 357 | 1.03 | Manual |
| RD | LPF | Sg | 23:53:21.20 | -0.09 | 357 | 1.03 | Manual |
| RD | GRR | Pg | 23:53:13.60 | 0 | 3 | 1.39 | Manual |
| RD | GRR | Sg | 23:53:32.90 | -0.02 | 3 | 1.39 | Manual |
| RD | LDF | Sg | 23:53:43.60 | 0.88 | 19 | 1.69 | Manual |
| RD | FLN | Sg | 23:53:45.40 | -0.64 | 10 | 1.79 | Manual |
| RD | LSF | Sg | 23:53:47.80 | -0.92 | 113 | 1.87 | Manual |