This event was reviewed by an analyst and confirmed.
| Type | Earthquake |
| Magnitude | 2.1 MLv |
| Local datetime | 1981/03/21 18:55 |
| Universal datetime | 1981/03/21 17:55 |
| Latitude | 45.86 ° ± 3 km |
| Longitude | 3.76 ° ± 4 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 |
|---|---|---|
Roanne 
|
32 | 34366 |
| Vichy
|
40 | 24166 |
| Montbrison
|
38 | 15641 |
| Cusset
|
38 | 12661 |
| Thiers
|
17 | 11847 |
| Pont-du-Château
|
41 | 11441 |
| Riorges
|
29 | 10774 |
| Bellerive-sur-Allier
|
40 | 8500 |
| Lempdes
|
45 | 8409 |
| Feurs
|
39 | 8173 |
| Mably
|
35 | 7605 |
| Le Coteau
|
31 | 6872 |
| Ambert
|
34 | 6671 |
| Lezoux
|
29 | 6152 |
| Montrond-les-Bains
|
45 | 5302 |
Past seismicity
This map shows only the 50 most significant earthquakes around this event.
Event details
Parameters
| Evaluation status | final |
|---|---|
| RMS | 0.9 |
| Azimuthal gap | |
| Number of stations used | 7 |
| Number of phases used | 12 |
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 | SMF | Pg | 17:55:37.20 | 0.24 | 4 | 0.79 | Manual |
| RD | SMF | Sg | 17:55:49.80 | 1.82 | 4 | 0.79 | Manual |
| RD | MZF | Pg | 17:55:39.59 | 0.4 | 294 | 0.91 | Manual |
| RD | MZF | Sg | 17:55:52.30 | 0.45 | 294 | 0.91 | Manual |
| RD | AVF | Pg | 17:55:40.40 | -0.02 | 343 | 0.97 | Manual |
| RD | AVF | Sg | 17:55:53.50 | -0.5 | 343 | 0.97 | Manual |
| RD | LBF | Pg | 17:55:43.0 | -0.45 | 8 | 1.14 | Manual |
| RD | LBF | Sg | 17:55:58.80 | -0.47 | 8 | 1.14 | Manual |
| RD | TCF | Pg | 17:55:43.80 | -0.14 | 292 | 1.16 | Manual |
| RD | TCF | Sg | 17:55:59.90 | -0.22 | 292 | 1.16 | Manual |
| RD | SSF | Pg | 17:55:44.60 | -0.35 | 352 | 1.22 | Manual |
| RD | SSF | Sg | 17:56:01.30 | -0.57 | 352 | 1.22 | Manual |