This event was reviewed by an analyst and confirmed.
Type Quarry blast
Magnitude 1.8 MLv
Local datetime 2023/04/04 12:21
Universal datetime 2023/04/04 10:21
Latitude 48.21 ° ± 0.1 km
Longitude -3.10 ° ± 0.1 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  42 44372
Pontivy  18 14606
Ploufragan  38 11546
Loudéac  27 9571
Trégueux  40 8432
Languidic  42 7971
Carhaix-Plouguer  35 7174
Guingamp  39 6895
Plédran  37 6666
Inzinzac-Lochrist  41 6526
Le Mené  43 6417
Baud  38 6261
Plouay  36 5670
Ploumagoar  35 5434
Yffiniac  42 5010

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 70.8 °
Number of stations used 12
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
RD ROSF Pg 10:21:54.72 0 317.5 0.17 Manual
RD ROSF Sg 10:21:57.20 0.31 317.5 0.17 Manual
FR GUEF Pg 10:21:59.95 -0.12 135.71 0.45 Manual
FR PLOF Pg 10:22:01.23 0 205.38 0.51 Manual
FR PLEF Pg 10:22:02.52 -0.05 60.86 0.59 Manual
FR LOCF Pg 10:22:03.15 0.29 321.12 0.6 Manual
FR OLIV Pg 10:22:05.69 -0.03 247.91 0.76 Manual
FR OLIV Sg 10:22:15.60 -0.32 247.91 0.76 Manual
FR BEGF Pg 10:22:07.45 0.48 136.25 0.82 Manual
FR BIMF Pg 10:22:08.22 0.03 184.34 0.89 Manual
GB JSA Pg 10:22:12.64 -0.52 31.92 1.16 Manual
GB JSA Sg 10:22:28.80 0.01 31.92 1.16 Manual
FR RIAF Pg 10:22:17.77 0.13 119.68 1.4 Manual
FR MTNF Pg 10:22:19.50 -0.25 86.86 1.51 Manual
FR BESN Pg 10:22:20.3 0.02 39.66 1.52 Manual