This event was reviewed by an analyst and confirmed.
| Type | Earthquake |
| Magnitude | 2.1 MLv |
| Local datetime | 1981/04/12 00:46 |
| Universal datetime | 1981/04/11 22:46 |
| Latitude | 45.66 ° ± 2 km |
| Longitude | 3.61 ° ± 2 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 |
|---|---|---|
Clermont-Ferrand 
|
41 | 143886 |
| Cournon-d'Auvergne
|
34 | 20043 |
| Montbrison
|
37 | 15641 |
| Issoire
|
31 | 14822 |
| Thiers
|
23 | 11847 |
| Pont-du-Château
|
33 | 11441 |
| Beaumont
|
42 | 10787 |
| Gerzat
|
40 | 10365 |
| Aubière
|
39 | 10061 |
| Lempdes
|
35 | 8409 |
| Romagnat
|
41 | 7705 |
| Ambert
|
16 | 6671 |
| Lezoux
|
26 | 6152 |
| Le Cendre
|
33 | 5426 |
| Vic-le-Comte
|
29 | 5197 |
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 | 9 |
| Number of phases used | 10 |
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 | MZF | Pg | 22:46:59.70 | 0.13 | 308 | 0.92 | Manual |
| RD | MZF | Sg | 22:47:12.40 | -0.05 | 308 | 0.92 | Manual |
| RD | SMF | Pg | 22:47:00.90 | -0.11 | 9 | 1 | Manual |
| RD | SMF | Sg | 22:47:14.80 | -0.16 | 9 | 1 | Manual |
| RD | BGF | Pg | 22:47:02.20 | 0.33 | 330 | 1.05 | Manual |
| RD | BGF | Sg | 22:47:16.70 | 0.24 | 330 | 1.05 | Manual |
| RD | AVF | Pg | 22:47:03.70 | -0.06 | 351 | 1.15 | Manual |
| RD | AVF | Sg | 22:47:19.79 | 0.05 | 351 | 1.15 | Manual |
| RD | TCF | Pg | 22:47:04.0 | -0.09 | 303 | 1.16 | Manual |
| RD | TCF | Sg | 22:47:20.0 | -0.3 | 303 | 1.16 | Manual |