This event was reviewed by an analyst and confirmed.
Type Earthquake
Magnitude 2.8 MLv
Local datetime 1983/11/21 00:41
Universal datetime 1983/11/20 23:41
Latitude 46.37 ° ± 2 km
Longitude -0.44 ° ± 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
Niort  5 58707
Bressuire  54 19519
Fontenay-le-Comte  29 13226
Parthenay  34 10267
Périgny  55 8428
Chauray  5 7006
Saint-Maixent-l'École  18 6982
Saint-Jean-d'Angély  48 6976
Surgères  38 6807
Melle  28 6213
La Crèche  10 5635
Pouzauges  55 5514
Aiffres  10 5506
Dompierre-sur-Mer  53 5482
Moncoutant-sur-Sèvre  39 5046

Past seismicity

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

Event details

Parameters

Evaluation status final
RMS 1.2
Azimuthal gap
Number of stations used 17
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 MFF Pg 23:41:17.70 0.86 41 0.31 Manual
RD MFF Sg 23:41:21.50 0 41 0.31 Manual
RD LSF Pg 23:41:37.59 1.22 94 1.37 Manual
RD LSF Sg 23:41:55.40 -0.07 94 1.37 Manual
RD LFF Pg 23:41:42.40 0.78 149 1.65 Manual
RD LFF Sg 23:42:03.80 -0.73 149 1.65 Manual
RD LPF Pg 23:41:44.40 1.52 346 1.72 Manual
RD LPF Sg 23:42:04.50 -2.2 346 1.72 Manual
RD RJF Pg 23:41:43.40 0.22 127 1.73 Manual
RD RJF Sg 23:42:05.80 -1.43 127 1.73 Manual