This event was reviewed by an analyst and confirmed.
| Type | Earthquake |
| Magnitude | 2.8 MLv |
| Local datetime | 2021/04/28 22:13 |
| Universal datetime | 2021/04/28 20:13 |
| Latitude | 46.97 ° ± 0.1 km |
| Longitude | -1.99 ° ± 0.1 km |
| Depth | 20 km (from location) ± 0.1 km |
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Testify !Near cities
This table shows only the most populated cities around the epicenter.
| Name | Distance (km) | Population |
|---|---|---|
Challans 
|
18 | 20622 |
| Pornic
|
18 | 15018 |
| Saint-Brevin-les-Pins
|
34 | 13802 |
| Saint-Hilaire-de-Riez
|
25 | 11169 |
| Saint-Philbert-de-Grand-Lieu
|
27 | 8921 |
| Saint-Jean-de-Monts
|
19 | 8634 |
| Bouaye
|
31 | 7844 |
| Saint-Gilles-Croix-de-Vie
|
31 | 7655 |
| Machecoul-Saint-Même
|
13 | 7473 |
| Sainte-Pazanne
|
18 | 6774 |
| Chaumes-en-Retz
|
21 | 6759 |
| La Montagne
|
33 | 6231 |
| Saint-Jean-de-Boiseau
|
32 | 5827 |
| La Chevrolière
|
33 | 5589 |
| Le Pellerin
|
31 | 5100 |
Past seismicity
This map shows only the 50 most significant earthquakes around this event.
Event details
Parameters
| Evaluation status | preliminary |
|---|---|
| RMS | 0.41 |
| Azimuthal gap | 137.52 ° |
| Number of stations used | 33 |
| Number of phases used | 57 |
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 |
|---|---|---|---|---|---|---|---|
| FR | BOUF | Pg | 20:13:11.49 | -0.32 | 50.53 | 0.31 | Manual |
| FR | BOUF | Sg | 20:13:16.47 | -0.17 | 50.53 | 0.31 | Manual |
| FR | LGIF | Pg | 20:13:16.78 | -0.77 | 141.67 | 0.65 | Manual |
| FR | BEGF | Pg | 20:13:18.1 | -0.03 | 343.95 | 0.68 | Manual |
| FR | BEGF | Sg | 20:13:27.24 | -0.35 | 343.95 | 0.68 | Manual |
| FR | RIAF | Pg | 20:13:18.46 | -0.15 | 40.01 | 0.71 | Manual |
| FR | RIAF | Sg | 20:13:27.90 | -0.72 | 40.01 | 0.71 | Manual |
| FR | BIMF | Pg | 20:13:21.36 | -0.57 | 293.96 | 0.91 | Manual |
| FR | BIMF | Sg | 20:13:34.19 | -0.4 | 293.96 | 0.91 | Manual |
| FR | CRNF | Pg | 20:13:21.74 | -0.59 | 79.02 | 0.93 | Manual |
| FR | SDOF | Pg | 20:13:22.98 | -0.58 | 156.44 | 1 | Manual |
| FR | SDOF | Sn | 20:13:36.48 | -0.55 | 156.44 | 1 | Manual |
| FR | GUEF | Pn | 20:13:22.85 | -0.32 | 334.72 | 1.02 | Manual |
| FR | GUEF | Pg | 20:13:24.12 | 0.22 | 334.72 | 1.02 | Manual |
| FR | GUEF | Sn | 20:13:37.86 | 0.32 | 334.72 | 1.02 | Manual |
| RA | UNIO | Sn | 20:13:42.54 | 0.59 | 152.82 | 1.2 | Manual |
| FR | PLOF | Pn | 20:13:26.4 | -0.29 | 309.03 | 1.25 | Manual |
| FR | PLOF | Pg | 20:13:28.26 | 0.42 | 309.03 | 1.25 | Manual |
| FR | PLOF | Sn | 20:13:44.12 | 0.74 | 309.03 | 1.25 | Manual |
| RD | MFF | Pn | 20:13:26.86 | -0.3 | 105.38 | 1.32 | Manual |
| RD | MFF | Pg | 20:13:28.62 | -0.26 | 105.38 | 1.32 | Manual |
| RD | MFF | Sn | 20:13:44.98 | 0.06 | 105.38 | 1.32 | Manual |
| FR | CHIF | Pn | 20:13:27.56 | -0.36 | 126.8 | 1.37 | Manual |
| FR | CHIF | Pg | 20:13:29.32 | -0.51 | 126.8 | 1.37 | Manual |
| FR | CHIF | Sn | 20:13:46.75 | 0.42 | 126.8 | 1.37 | Manual |
| FR | MTNF | Pn | 20:13:29.66 | -0.23 | 30.12 | 1.52 | Manual |
| FR | MTNF | Pg | 20:13:32.29 | -0.01 | 30.12 | 1.52 | Manual |
| FR | PLEF | Pn | 20:13:29.89 | -0.41 | 351.4 | 1.55 | Manual |
| FR | PLEF | Pg | 20:13:33.13 | 0.33 | 351.4 | 1.55 | Manual |
| FR | GIZF | Pn | 20:13:30.61 | 0.23 | 72.67 | 1.55 | Manual |
| FR | GIZF | Pg | 20:13:33.8 | 0.17 | 72.67 | 1.55 | Manual |
| RD | ROSF | Pn | 20:13:31.9 | -0.25 | 328.05 | 1.62 | Manual |
| RD | ROSF | Pg | 20:13:34.82 | 0.72 | 328.05 | 1.62 | Manual |
| FR | OLIV | Pn | 20:13:32.53 | -0.51 | 303.96 | 1.75 | Manual |
| FR | OLIV | Pg | 20:13:36.75 | 0.51 | 303.96 | 1.75 | Manual |
| FR | LOUF | Pn | 20:13:33.8 | -0.31 | 15.15 | 1.78 | Manual |
| FR | LOUF | Pg | 20:13:36.79 | 0.13 | 15.15 | 1.78 | Manual |
| FR | GNEF | Pn | 20:13:33.71 | -0.23 | 117.48 | 1.82 | Manual |
| FR | GNEF | Pg | 20:13:37.20 | -0.15 | 117.48 | 1.82 | Manual |
| FR | TSDF | Pn | 20:13:34.66 | 0.44 | 63.83 | 1.84 | Manual |
| FR | TSDF | Pg | 20:13:38.22 | 0.52 | 63.83 | 1.84 | Manual |
| FR | SOMF | Pn | 20:13:35.32 | -0.01 | 45.21 | 1.92 | Manual |
| FR | SOMF | Pg | 20:13:39.30 | 0.21 | 45.21 | 1.92 | Manual |
| FR | BSCF | Pg | 20:13:41.77 | 0.59 | 93.45 | 2.04 | Manual |
| FR | LOCF | Pg | 20:13:41.68 | 0.25 | 327.06 | 2.06 | Manual |
| FR | SROF | Pn | 20:13:38.6 | -0.58 | 15.48 | 2.16 | Manual |
| FR | CAMF | Pn | 20:13:39.29 | 0.07 | 307.21 | 2.21 | Manual |
| GB | JSA | Pn | 20:13:39.48 | -0.04 | 356.86 | 2.23 | Manual |
| FR | LRVF | Pn | 20:13:41.79 | 0.83 | 149.32 | 2.33 | Manual |
| FR | LRVF | Pg | 20:13:46.70 | 0.6 | 149.32 | 2.33 | Manual |
| FR | ABJF | Pn | 20:13:41.18 | -0.14 | 125.16 | 2.36 | Manual |
| FR | ABJF | Pg | 20:13:47.5 | 0.49 | 125.16 | 2.36 | Manual |
| FR | GARF | Pn | 20:13:43.60 | 0.36 | 99.08 | 2.5 | Manual |
| FR | CLEV | Pn | 20:13:47.10 | 0.17 | 53.94 | 2.77 | Manual |
| RD | LFF | Pn | 20:13:47.5 | 0.04 | 135.83 | 2.78 | Manual |
| FR | BRGF | Pn | 20:13:47.18 | 0.07 | 109.87 | 2.79 | Manual |
| FR | RUFF | Pn | 20:13:49.73 | 0.5 | 150.71 | 2.94 | Manual |