Event characteristics This information has been confirmed by a seismologist.
FRANCE ORID : 5058971
04/12/23 14 Arrivals 4 Iterations RMS : 0.25 Type :eq
Origin time: 20:29:42.25 ± 0.04
Latitude : 47.61 ± 0.3 1/2 Major Axis : 0.8 km
Longitude : -1.87 ± 0.3 1/2 Minor Axis : 0.6 km
Depth: 5. (Imposed) Azimuth mj Axis : 20.8 deg
ML : 2.23±0.14 of 6 stations MD : 2.14±0.03 of 3 stations
Location in relation to nearby cities 4 km SW of GUEMENE-PENFAO (LOIRE-ATLANTIQUE) (4500 residents)
8 km N of PLESSE (LOIRE-ATLANTIQUE) (3300 residents)
10 km ESE of AVESSAC (LOIRE-ATLANTIQUE) (2200 residents)
16 km ESE of REDON (ILLE-ET-VILAINE) (9300 residents)
CODE QP PHASE ARRIVAL TIME O-C DIST. AZI. AMPL. PER. ML MD DUREE
SGMF E Pg 20h29 57.28 0.06 88.3km 324
SGMF E Sg 20h30 7.32 -0.27 88.3km 324 5.0 0.3 2.17 28.3
QUIF E Pg 20h29 59.74 0.13 102.8km 290
QUIF E Sg 20h30 11.23 -0.43 102.8km 290 7.3 0.2 2.31 2.12 26.8
GRR E Pg 20h30 1.71 0.01 115.4km 40
GRR E Sg 20h30 14.62 -0.56 115.4km 40 7.8 0.2 2.23 2.12 27.5
ROSF E Pg 20h30 4.58 0.06 132.4km 308
ROSF E Sg 20h30 20.10 0.15 132.4km 308 5.8 0.2 2.43
FLN E Pg 20h30 9.77 -0.15 165.0km 38
FLN E Sg 20h30 28.77 -0.35 165.0km 38 3.9 0.2 2.14
LDF E Pg 20h30 10.59 -0.25 170.5km 49
LDF E Sg 20h30 30.45 -0.20 170.5km 49 1.9 0.2 2.01
MFF E Pg 20h30 10.91 -0.23 172.3km 129
MFF E Sg 20h30 31.09 -0.07 172.3km 129 3.7 0.4 2.23
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