This event was reviewed by an analyst and confirmed.
Type Quarry blast
Magnitude 1.7 MLv
Local datetime 2025/07/30 11:21
Universal datetime 2025/07/30 09:21
Latitude 48.20 ° ± 0.4 km
Longitude -2.60 ° ± 0.4 km
Depth 0 km (operator assigned) ± 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-Brieuc  37 44372
Lamballe-Armor  32 16578
Pontivy  31 14606
Plérin  41 14062
Ploufragan  36 11546
Ploërmel  35 9837
Loudéac  12 9571
Trégueux  33 8432
Langueux  35 7692
Pordic  45 7167
Plédran  29 6666
Le Mené  11 6417
Guer  48 6192
Montauban-de-Bretagne  40 5840
Yffiniac  31 5010

Past seismicity

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

Event details

Parameters

Evaluation status preliminary
RMS 0.23
Azimuthal gap 86.35 °
Number of stations used 9
Number of phases used 15

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 GUEF Pg 09:21:37.19 -0.3 184.53 0.31 Manual
FR GUEF Sg 09:21:41.29 -0.28 184.53 0.31 Manual
FR PLEF Pg 09:21:38.20 0.1 30.63 0.34 Manual
FR BEGF Pg 09:21:43.31 -0.03 158.74 0.63 Manual
FR LOCF Pg 09:21:47.89 0.15 304.28 0.86 Manual
FR LOCF Pn 09:21:49.37 -0.26 304.28 0.86 Manual
FR LOCF Sg 09:21:59.20 -0.2 304.28 0.86 Manual
FR BIMF Pg 09:21:49.68 0.08 205.28 0.96 Manual
FR BIMF Pn 09:21:51.22 0.24 205.28 0.96 Manual
FR BIMF Sg 09:22:03.24 0.63 205.28 0.96 Manual
FR LOUF Pg 09:21:50.26 0.04 60.78 1 Manual
FR OLIV Pg 09:21:51.62 -0.04 255.71 1.07 Manual
FR OLIV Pn 09:21:52.49 0.01 255.71 1.07 Manual
FR RIAF Pg 09:21:52.32 0.03 128.18 1.11 Manual
FR MTNF Pn 09:21:53.79 -0.05 85.72 1.17 Manual