This event was reviewed by an analyst and confirmed.
| Type | Earthquake |
| Magnitude | 2.3 MLv |
| Local datetime | 1981/04/12 06:22 |
| Universal datetime | 1981/04/12 04:22 |
| Latitude | 49.61 ° ± 2 km |
| Longitude | -0.81 ° ± 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 |
|---|---|---|
Caen 
|
57 | 105354 |
| Cherbourg-en-Cotentin
|
59 | 79200 |
| Hérouville-Saint-Clair
|
57 | 22954 |
| Saint-Lô
|
59 | 19116 |
| Bayeux
|
38 | 13121 |
| Ifs
|
62 | 11766 |
| Carentan-les-Marais
|
44 | 10118 |
| Mondeville
|
61 | 9868 |
| Ouistreham
|
54 | 9081 |
| Colombelles
|
59 | 6918 |
| Valognes
|
49 | 6803 |
| Thue et Mue
|
50 | 5904 |
| Blainville-sur-Orne
|
56 | 5801 |
| Dives-sur-Mer
|
64 | 5546 |
| Douvres-la-Délivrande
|
47 | 5062 |
Past seismicity
This map shows only the 50 most significant earthquakes around this event.
Event details
Parameters
| Evaluation status | final |
|---|---|
| RMS | 0.5 |
| 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 | 04:23:14.0 | -0.1 | 166 | 0.88 | Manual |
| RD | FLN | Pn | 04:23:15.40 | 0.08 | 166 | 0.88 | Manual |
| RD | FLN | Sg | 04:23:26.60 | 0.25 | 166 | 0.88 | Manual |
| RD | SSC | Pg | 04:23:18.70 | -0.09 | 155 | 1.13 | Manual |
| RD | SSC | Sg | 04:23:34.50 | -0.02 | 155 | 1.13 | Manual |
| RD | GRR | Pn | 04:23:20.10 | 0.06 | 181 | 1.22 | Manual |
| RD | GRR | Sg | 04:23:37.20 | -0.45 | 181 | 1.22 | Manual |
| RD | LPF | Sg | 04:23:49.80 | 0.3 | 186 | 1.59 | Manual |