This event was reviewed by an analyst and confirmed.
| Type | Earthquake |
| Magnitude | 2.2 MLv |
| Local datetime | 1981/04/09 22:45 |
| Universal datetime | 1981/04/09 20:45 |
| Latitude | 49.52 ° ± 3 km |
| Longitude | -1.00 ° ± 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 |
|---|---|---|
Caen 
|
59 | 105354 |
| Cherbourg-en-Cotentin
|
47 | 79200 |
| Hérouville-Saint-Clair
|
60 | 22954 |
| Saint-Lô
|
46 | 19116 |
| Bayeux
|
34 | 13121 |
| La Hague
|
61 | 11634 |
| Carentan-les-Marais
|
27 | 10118 |
| Ouistreham
|
60 | 9081 |
| Coutances
|
61 | 8501 |
| Colombelles
|
62 | 6918 |
| Valognes
|
34 | 6803 |
| Thue et Mue
|
49 | 5904 |
| Bricquebec-en-Cotentin
|
49 | 5899 |
| Blainville-sur-Orne
|
60 | 5801 |
| Douvres-la-Délivrande
|
51 | 5062 |
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 | 4 |
| 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 | FLN | Pg | 20:45:21.60 | -0.23 | 155 | 0.83 | Manual |
| RD | FLN | Pn | 20:45:23.10 | -0.21 | 155 | 0.83 | Manual |
| RD | FLN | Sg | 20:45:34.30 | 0.89 | 155 | 0.83 | Manual |
| RD | SSC | Pg | 20:45:27.0 | 0.02 | 147 | 1.1 | Manual |
| RD | SSC | Sg | 20:45:42.0 | -0.36 | 147 | 1.1 | Manual |
| RD | GRR | Pn | 20:45:27.90 | 0.46 | 175 | 1.13 | Manual |
| RD | GRR | Sg | 20:45:43.0 | -0.3 | 175 | 1.13 | Manual |
| RD | LPF | Sg | 20:45:54.80 | 0.01 | 181 | 1.49 | Manual |