This event was reviewed by an analyst and confirmed.
Type Earthquake
Magnitude 2.5 MLv
Local datetime 1983/04/20 09:43
Universal datetime 1983/04/20 07:43
Latitude 47.67 ° ± 1 km
Longitude -0.94 ° ± 6 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
Angers  36 152960
Mauges-sur-Loire  37 18284
Segré-en-Anjou Bleu  7 17562
Château-Gontier-sur-Mayenne  25 16776
Avrillé  31 13692
Châteaubriant  34 11974
Ombrée d'Anjou  14 8998
Les Hauts-d'Anjou  29 8759
Loireauxence  26 7522
Montreuil-Juigné  28 7517
Bouchemaine  36 6774
Vallons-de-l'Erdre  21 6556
Longuenée-en-Anjou  25 6331
Erdre-en-Anjou  14 5746
Beaucouzé  32 5156

Past seismicity

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

Event details

Parameters

Evaluation status final
RMS 0.7
Azimuthal gap
Number of stations used 5
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 07:43:59.20 0.38 349 0.37 Manual
RD LPF Sg 07:44:03.80 -0.4 349 0.37 Manual
RD GRR Pg 07:44:05.60 0.38 4 0.72 Manual
RD GRR Sg 07:44:15.0 -0.35 4 0.72 Manual
RD LDF Pg 07:44:12.40 0.6 30 1.08 Manual
RD LDF Sg 07:44:26.90 0.1 30 1.08 Manual
RD FLN Pg 07:44:13.20 0.24 15 1.14 Manual
RD FLN Sg 07:44:28.30 -0.51 15 1.14 Manual
RD MFF Pg 07:44:13.80 -0.23 153 1.19 Manual
RD MFF Sg 07:44:30.50 -0.18 153 1.19 Manual