This event was reviewed by an analyst and confirmed.
| Type | Earthquake |
| Magnitude | 2.5 MLv |
| Local datetime | 1981/06/24 17:34 |
| Universal datetime | 1981/06/24 15:34 |
| Latitude | 47.40 ° ± 2 km |
| Longitude | -1.32 ° ± 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 |
|---|---|---|
Carquefou 
|
16 | 19805 |
| La Chapelle-sur-Erdre
|
21 | 19609 |
| Orée d'Anjou
|
13 | 16413 |
| Sainte-Luce-sur-Loire
|
20 | 15360 |
| Ancenis-Saint-Géréon
|
10 | 10802 |
| Thouaré-sur-Loire
|
16 | 10025 |
| Nort-sur-Erdre
|
16 | 8763 |
| Le Loroux-Bottereau
|
19 | 8227 |
| Loireauxence
|
22 | 7522 |
| Sucé-sur-Erdre
|
16 | 7023 |
| Saint-Julien-de-Concelles
|
18 | 6917 |
| Divatte-sur-Loire
|
13 | 6844 |
| Vallons-de-l'Erdre
|
21 | 6556 |
| Grandchamps-des-Fontaines
|
23 | 6016 |
| Ligné
|
5 | 5174 |
Past seismicity
This map shows only the 50 most significant earthquakes around this event.
Event details
Parameters
| Evaluation status | final |
|---|---|
| RMS | 0.7 |
| Azimuthal gap | |
| Number of stations used | 5 |
| Number of phases used | 10 |
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 | 15:34:20.40 | 0.42 | 16 | 0.66 | Manual |
| RD | LPF | Sg | 15:34:29.50 | 0.33 | 16 | 0.66 | Manual |
| RD | GRR | Pg | 15:34:27.20 | 0.19 | 17 | 1.03 | Manual |
| RD | GRR | Sg | 15:34:41.50 | 0.08 | 17 | 1.03 | Manual |
| RD | MFF | Pg | 15:34:29.0 | 0.1 | 135 | 1.13 | Manual |
| RD | MFF | Sg | 15:34:44.60 | -0.1 | 135 | 1.13 | Manual |
| RD | SSC | Pg | 15:34:34.70 | 0.17 | 34 | 1.43 | Manual |
| RD | SSC | Sg | 15:34:54.90 | 0.42 | 34 | 1.43 | Manual |
| RD | FLN | Pg | 15:34:34.40 | -0.83 | 22 | 1.47 | Manual |
| RD | FLN | Sg | 15:34:54.80 | -0.88 | 22 | 1.47 | Manual |