This event was reviewed by an analyst and confirmed.
Type Quarry blast
Magnitude 1.7 MLv
Local datetime 2026/03/20 11:34
Universal datetime 2026/03/20 10:34
Latitude 48.57 ° ± 0.2 km
Longitude -1.68 ° ± 0.2 km
Depth 0 km (from location) ± 0.0 km
See the seismogram of this event.

Near cities

This table shows only the most populated cities around the epicenter.
Name Distance (km) Population
Saint-Malo  24 46097
Fougères  43 20418
Dinan  31 14166
Granville  30 12580
Betton  43 11735
Avranches  27 10155
Dinard  29 10027
Liffré  42 7609
Pleurtuit  28 6806
Melesse  39 6576
Saint-Hilaire-du-Harcouët  39 6094
Combourg  19 5940
Dol-de-Bretagne  6 5693
Gévezé  41 5301
Cancale  19 5121

Past seismicity

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

Event details

Parameters

Evaluation status preliminary
RMS 0.24
Azimuthal gap 87.38 °
Number of stations used 8
Number of phases used 13

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
FR LOUF Pg 10:34:10.61 -0.11 67.3 0.28 Manual
FR LOUF Sg 10:34:14.53 0.17 67.3 0.28 Manual
FR MTNF Pg 10:34:17.52 0.33 117.94 0.63 Manual
FR BESN Pg 10:34:20.92 0.39 2.86 0.81 Manual
FR BESN Sg 10:34:31.68 0.25 2.86 0.81 Manual
FR GUEF Pg 10:34:22.93 0 223.56 0.94 Manual
FR BEGF Pg 10:34:24.68 -0.06 202.57 1.03 Manual
FR BEGF Sg 10:34:38.55 -0.16 202.57 1.03 Manual
FR RIAF Pg 10:34:26.22 0.41 166.97 1.09 Manual
FR DAUF Pg 10:34:29.11 -0.04 135.23 1.27 Manual
FR DAUF Sg 10:34:46.57 0.23 135.23 1.27 Manual
FR LOCF Pg 10:34:30.11 -0.15 275.48 1.33 Manual
FR LOCF Sg 10:34:47.89 -0.37 275.48 1.33 Manual