This event was reviewed by an analyst and confirmed.
Type Earthquake
Magnitude 3.6 MLv
Local datetime 1987/02/05 00:35
Universal datetime 1987/02/04 23:35
Latitude 46.84 ° ± 2 km
Longitude -1.75 ° ± 7 km
Depth 5 km (operator assigned) ± 0.0 km

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See the seismogram of this event.

Near cities

This table shows only the most populated cities around the epicenter.
Name Distance (km) Population
La Roche-sur-Yon  32 54372
Challans  7 20622
Saint-Hilaire-de-Riez  20 11169
Aizenay  15 9510
Saint-Philbert-de-Grand-Lieu  25 8921
Saint-Jean-de-Monts  23 8634
Le Poiré-sur-Vie  20 8509
Saint-Gilles-Croix-de-Vie  21 7655
Machecoul-Saint-Même  19 7473
Sainte-Pazanne  28 6774
Aubigny-Les Clouzeaux  32 6571
Bellevigny  26 6005
La Chevrolière  30 5589
La Ferrière  34 5255
Les Achards  28 5063

Past seismicity

  This map shows only the 50 most significant earthquakes around this event.

Event details

Parameters

Evaluation status final
RMS 0.8
Azimuthal gap
Number of stations used 20
Number of phases used 9

Webservices

The data of this event are available in various formats (QuakeML, GeoJSON and text) through the following links :

QuakeML GeoJSON Text

Phases

Network Station Phase Time Residual (s) Azimuth (°) Distance (°) Mode
RD MFF Pn 23:36:18.0 -0.36 101 1.13 Manual
RD MFF Pg 23:36:18.50 0.06 101 1.13 Manual
RD MFF Sg 23:36:34.30 0.09 101 1.13 Manual
RD LPF Pn 23:36:20.60 0.06 22 1.29 Manual
RD LPF Pg 23:36:22.10 0.66 22 1.29 Manual
RD LPF Sg 23:36:40.9 0.69 22 1.29 Manual
RD GRR Pn 23:36:25.60 -0.06 21 1.67 Manual
RD GRR Pg 23:36:28.30 -0.24 21 1.67 Manual
RD GRR Sg 23:36:50.70 -0.99 21 1.67 Manual