This event was reviewed by an analyst and confirmed.
| Type | Earthquake |
| Magnitude | 2.5 MLv |
| Local datetime | 1981/04/09 09:00 |
| Universal datetime | 1981/04/09 07:00 |
| Latitude | 49.53 ° ± 3 km |
| Longitude | -1.03 ° ± 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 
|
61 | 105354 |
| Cherbourg-en-Cotentin
|
44 | 79200 |
| Hérouville-Saint-Clair
|
62 | 22954 |
| Saint-Lô
|
47 | 19116 |
| Bayeux
|
37 | 13121 |
| La Hague
|
58 | 11634 |
| Carentan-les-Marais
|
27 | 10118 |
| Ouistreham
|
63 | 9081 |
| Coutances
|
61 | 8501 |
| Colombelles
|
65 | 6918 |
| Valognes
|
32 | 6803 |
| Thue et Mue
|
51 | 5904 |
| Bricquebec-en-Cotentin
|
47 | 5899 |
| Blainville-sur-Orne
|
62 | 5801 |
| Douvres-la-Délivrande
|
53 | 5062 |
Past seismicity
This map shows only the 50 most significant earthquakes around this event.
Event details
Parameters
| Evaluation status | final |
|---|---|
| RMS | 0.6 |
| 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 | 07:01:08.10 | -0.27 | 155 | 0.85 | Manual |
| RD | FLN | Pn | 07:01:09.60 | -0.14 | 155 | 0.85 | Manual |
| RD | FLN | Sg | 07:01:20.90 | 0.66 | 155 | 0.85 | Manual |
| RD | SSC | Pg | 07:01:13.80 | 0.26 | 147 | 1.13 | Manual |
| RD | SSC | Sg | 07:01:28.80 | -0.43 | 147 | 1.13 | Manual |
| RD | GRR | Pg | 07:01:14.20 | 0.24 | 174 | 1.15 | Manual |
| RD | GRR | Sg | 07:01:29.70 | -0.26 | 174 | 1.15 | Manual |
| RD | LPF | Sg | 07:01:41.40 | 0.02 | 180 | 1.5 | Manual |