This event was reviewed by an analyst and confirmed.
| Type | Earthquake |
| Magnitude | 2.9 MLv |
| Local datetime | 1990/04/20 14:26 |
| Universal datetime | 1990/04/20 12:26 |
| Latitude | 46.66 ° ± 3 km |
| Longitude | -1.86 ° ± 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 |
|---|---|---|
La Roche-sur-Yon 
|
35 | 54372 |
| Les Sables-d'Olonne
|
17 | 44017 |
| Challans
|
20 | 20622 |
| Saint-Hilaire-de-Riez
|
12 | 11169 |
| Aizenay
|
20 | 9510 |
| Saint-Philbert-de-Grand-Lieu
|
47 | 8921 |
| Saint-Jean-de-Monts
|
21 | 8634 |
| Le Poiré-sur-Vie
|
30 | 8509 |
| Talmont-Saint-Hilaire
|
27 | 7657 |
| Saint-Gilles-Croix-de-Vie
|
6 | 7655 |
| Machecoul-Saint-Même
|
38 | 7473 |
| Aubigny-Les Clouzeaux
|
29 | 6571 |
| Bellevigny
|
37 | 6005 |
| La Ferrière
|
41 | 5255 |
| Les Achards
|
17 | 5063 |
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 | 16 |
| Number of phases used | 12 |
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 | 12:27:05.60 | 1.18 | 92 | 1.18 | Manual |
| RD | MFF | Sg | 12:27:22.30 | 1.39 | 92 | 1.18 | Manual |
| RD | LPF | Pg | 12:27:10.50 | 0.52 | 22 | 1.48 | Manual |
| RD | LPF | Sg | 12:27:32.9 | 1.53 | 22 | 1.48 | Manual |
| RD | GRR | Pg | 12:27:16.50 | -0.61 | 21 | 1.86 | Manual |
| RD | GRR | Sg | 12:27:42.70 | -0.17 | 21 | 1.86 | Manual |
| RD | LDF | Pg | 12:27:24.0 | -0.77 | 31 | 2.26 | Manual |
| RD | LDF | Sg | 12:27:55.70 | -0.43 | 31 | 2.26 | Manual |
| RD | FLN | Pg | 12:27:25.60 | 0.15 | 23 | 2.3 | Manual |
| RD | FLN | Sg | 12:27:57.0 | -0.31 | 23 | 2.3 | Manual |
| RD | LSF | Pg | 12:27:26.70 | -0.27 | 99 | 2.38 | Manual |
| RD | LSF | Sg | 12:27:58.20 | -1.74 | 99 | 2.38 | Manual |