This event was reviewed by an analyst and confirmed.
| Type | Earthquake |
| Magnitude | 3.9 MLv |
| Local datetime | 1981/08/31 04:28 |
| Universal datetime | 1981/08/31 02:28 |
| Latitude | 47.06 ° ± 3 km |
| Longitude | -0.45 ° ± 10 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 |
|---|---|---|
Cholet 
|
33 | 53917 |
| Saumur
|
36 | 26734 |
| Chemillé-en-Anjou
|
26 | 21392 |
| Bressuire
|
23 | 19519 |
| Thouars
|
18 | 13990 |
| Doué-en-Anjou
|
18 | 11005 |
| Brissac Loire Aubance
|
32 | 10807 |
| Gennes-Val-de-Loire
|
34 | 8724 |
| Mauléon
|
26 | 8519 |
| Lys-Haut-Layon
|
9 | 7880 |
| Sèvremont
|
39 | 6486 |
| Mortagne-sur-Sèvre
|
38 | 5930 |
| Bellevigne-en-Layon
|
24 | 5730 |
| Nueil-les-Aubiers
|
17 | 5541 |
| Mûrs-Erigné
|
38 | 5522 |
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 | 22 |
| 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 | 02:28:56.20 | 0.05 | 155 | 0.5 | Manual |
| RD | LPF | Pg | 02:29:06.20 | -0.25 | 338 | 1.05 | Manual |
| RD | GRR | Pn | 02:29:10.40 | -0.54 | 349 | 1.36 | Manual |
| RD | SSC | Pn | 02:29:13.10 | -0.36 | 9 | 1.55 | Manual |
| RD | SSC | Sn | 02:29:34.50 | -0.55 | 9 | 1.55 | Manual |
| RD | LSF | Pn | 02:29:14.60 | 0.58 | 120 | 1.59 | Manual |
| RD | LSF | Pg | 02:29:16.0 | -0.45 | 120 | 1.59 | Manual |
| RD | FLN | Pg | 02:29:20.0 | 1.27 | 359 | 1.71 | Manual |
| RD | FLN | Sn | 02:29:39.40 | 0.29 | 359 | 1.71 | Manual |