This event was reviewed by an analyst and confirmed.
| Type | Earthquake |
| Magnitude | 2.8 MLv |
| Local datetime | 1981/05/20 05:50 |
| Universal datetime | 1981/05/20 03:50 |
| Latitude | 48.23 ° ± 4 km |
| Longitude | -2.17 ° ± 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 |
|---|---|---|
Dinan 
|
26 | 14166 |
| Saint-Jacques-de-la-Lande
|
37 | 13087 |
| Pacé
|
30 | 11739 |
| Saint-Grégoire
|
37 | 9639 |
| Le Rheu
|
32 | 8740 |
| Mordelles
|
29 | 7363 |
| Montfort-sur-Meu
|
19 | 6653 |
| Melesse
|
36 | 6576 |
| Le Mené
|
27 | 6417 |
| Guer
|
36 | 6192 |
| Bréal-sous-Montfort
|
31 | 6131 |
| Combourg
|
37 | 5940 |
| Montauban-de-Bretagne
|
8 | 5840 |
| Vezin-le-Coquet
|
34 | 5727 |
| Gévezé
|
28 | 5301 |
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 | 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 | 03:50:41.20 | -0.51 | 104 | 0.78 | Manual |
| RD | LPF | Sg | 03:50:52.80 | 0.18 | 104 | 0.78 | Manual |
| RD | GRR | Pg | 03:50:43.90 | 0.18 | 79 | 0.89 | Manual |
| RD | GRR | Sg | 03:50:56.90 | 0.78 | 79 | 0.89 | Manual |
| RD | FLN | Pg | 03:50:50.60 | 0.28 | 64 | 1.24 | Manual |
| RD | FLN | Sg | 03:51:07.50 | -0.11 | 64 | 1.24 | Manual |
| RD | SSC | Pg | 03:50:53.70 | 0.07 | 75 | 1.42 | Manual |
| RD | SSC | Sg | 03:51:12.40 | -0.94 | 75 | 1.42 | Manual |