This event was reviewed by an analyst and confirmed.
Type Earthquake
Magnitude 3.4 MLv
Local datetime 1987/05/20 03:01
Universal datetime 1987/05/20 01:01
Latitude 47.86 ° ± 3 km
Longitude -1.84 ° ± 3 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
Bruz  20 18266
Saint-Jacques-de-la-Lande  26 13087
Le Rheu  27 8740
Guichen  12 8568
Janzé  27 8279
Vern-sur-Seiche  28 7911
Chartres-de-Bretagne  23 7800
Mordelles  25 7363
Bain-de-Bretagne  13 7331
Guipry-Messac  4 6961
Noyal-Châtillon-sur-Seiche  25 6919
Guer  22 6192
Bréal-sous-Montfort  21 6131
Guémené-Penfao  26 5200
Laillé  15 5026

Past seismicity

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

Event details

Parameters

Evaluation status final
RMS 0.4
Azimuthal gap
Number of stations used 19
Number of phases used 10

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 LPF Pg 01:01:43.60 0.15 72 0.56 Manual
RD LPF Sg 01:01:51.20 -0.11 72 0.56 Manual
RD GRR Pg 01:01:49.0 0.35 51 0.84 Manual
RD GRR Sg 01:02:00.50 0.12 51 0.84 Manual
RD FLN Pn 01:01:55.80 -0.19 45 1.27 Manual
RD FLN Pg 01:01:56.90 0.09 45 1.27 Manual
RD FLN Sg 01:02:14.40 -0.15 45 1.27 Manual
RD LDF Pn 01:01:57.0 -0.13 57 1.36 Manual
RD LDF Pg 01:01:58.30 -0.08 57 1.36 Manual
RD LDF Sg 01:02:17.29 0.02 57 1.36 Manual