This event was reviewed by an analyst and confirmed.
| Type | Earthquake |
| Magnitude | 2.5 MLv |
| Local datetime | 1981/04/07 04:40 |
| Universal datetime | 1981/04/07 02:40 |
| Latitude | 47.93 ° ± 6 km |
| Longitude | -2.31 ° ± 7 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 |
|---|---|---|
Saint-Avé 
|
41 | 11642 |
| Ploërmel
|
5 | 9837 |
| Loudéac
|
43 | 9571 |
| Redon
|
34 | 9014 |
| Guichen
|
39 | 8568 |
| Theix-Noyalo
|
42 | 7966 |
| Questembert
|
31 | 7585 |
| Mordelles
|
39 | 7363 |
| Guipry-Messac
|
38 | 6961 |
| Montfort-sur-Meu
|
34 | 6653 |
| Le Mené
|
43 | 6417 |
| Guer
|
14 | 6192 |
| Bréal-sous-Montfort
|
36 | 6131 |
| Elven
|
30 | 6021 |
| Montauban-de-Bretagne
|
36 | 5840 |
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 | 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 | LPF | Pg | 02:40:51.50 | -0.08 | 82 | 0.86 | Manual |
| RD | LPF | Sg | 02:41:03.70 | 0.15 | 82 | 0.86 | Manual |
| RD | GRR | Pg | 02:40:55.70 | 0.06 | 64 | 1.07 | Manual |
| RD | GRR | Sg | 02:41:11.30 | 0.69 | 64 | 1.07 | Manual |
| RD | FLN | Pg | 02:41:03.60 | 0.41 | 55 | 1.48 | Manual |
| RD | FLN | Sg | 02:41:23.60 | -0.13 | 55 | 1.48 | Manual |
| RD | SSC | Pg | 02:41:05.30 | -0.41 | 65 | 1.61 | Manual |
| RD | SSC | Sg | 02:41:27.40 | -0.67 | 65 | 1.61 | Manual |