Event characteristics This information has been confirmed by a seismologist.
FRANCE ORID : 5059364
20/12/23 14 Arrivals 4 Iterations RMS : 0.30 Type :eq
Origin time: 23:45:37.53 ± 0.07
Latitude : 47.41 ± 0.5 1/2 Major Axis : 1.2 km
Longitude : -1.31 ± 0.7 1/2 Minor Axis : 1.1 km
Depth: 10. (Imposed) Azimuth mj Axis : 27.4 deg
ML : 2.29±0.24 of 6 stations MD : 2.43±0.04 of 5 stations
Location in relation to nearby cities 2 km NW of COUFFE (LOIRE-ATLANTIQUE) (1800 residents)
5 km E of LIGNE (LOIRE-ATLANTIQUE) (2700 residents)
5 km SSE of MOUZEIL (LOIRE-ATLANTIQUE) (1200 residents)
11 km WNW of ANCENIS (LOIRE-ATLANTIQUE) (6900 residents)
CODE QP PHASE ARRIVAL TIME O-C DIST. AZI. AMPL. PER. ML MD DUREE
GRR E Pg 23h45 57.28 0.40 114.5km 17
GRR E Sg 23h46 10.48 0.18 114.5km 17 14.8 0.3 2.41 2.37 38.9
MFF E Pg 23h45 58.77 -0.01 126.0km 134
MFF E Sg 23h46 13.28 -0.23 126.0km 134 7.5 0.3 2.47 2.49 45.4
*SGMF E Pg 23h45 59.27* -0.59 132.5km 315
SGMF E Sg 23h46 15.12 -0.21 132.5km 315 3.8 0.3 2.04
QUIF E Pg 23h46 2.62 -0.15 150.3km 292
QUIF E Sg 23h46 20.21 -0.08 150.3km 292 9.8 0.2 2.59 2.42 39.5
LDF E Pg 23h46 4.17 -0.11 159.2km 33
LDF E Sg 23h46 22.54 -0.29 159.2km 33 1.8 0.2 1.99 2.43 41.5
FLN E Pg 23h46 4.43 -0.49 163.1km 22
FLN E Sg 23h46 23.68 -0.23 163.1km 22 5.6 0.2 2.26 2.44 41.3
ROSF E Pg 23h46 7.75 0.12 179.5km 305
ROSF E Sg 23h46 28.14 -0.37 179.5km 305
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