CEA - DAM



	Most recent seismic event

	Automatic location 17/09/2020 10:07:32 UT 4 km NW of Machecoul (Loire-Atlantique) Caution: this automatic location has not been confirmed by a seismologist

	Event characteristics This information has not been confirmed by a seismologist, subsequent rectification is therefore likely.


	FRANCE ORID : 5028299 17/09/20 67 Arrivals RMS : 1.58 Type :uk Origin time: 10:07:32.80 ± 0.38 Latitude : 47.02 ± -1.0 1/2 Major Axis : 6.9 km Longitude : -1.87 ± -1.0 1/2 Minor Axis : 4.2 km Depth: 7. (Imposed) Azimuth mj Axis : 50.0 deg ML : 3.60±0.47 of 22 stations Location in relation to nearby cities 4 km NW of MACHECOUL (LOIRE-ATLANTIQUE) (5100 residents) 7 km ESE of BOURGNEUF-EN-RETZ (LOIRE-ATLANTIQUE) (2300 residents) 9 km NNE of BOIS-DE-CENE (VENDEE) (1200 residents) 33 km SW of NANTES (LOIRE-ATLANTIQUE) (245000 residents) CODE QP PHASE ARRIVAL TIME O-C DIST. AZI. AMPL. PER. ML MFF Pg 10h07 56.30 0.10 138.9km -180 MFF Sn 10h08 11.30 0.10 138.9km -180 MFF Sg 10h08 12.30 -0.10 138.9km -180 787.2 0.2 4.30 QUIF Pn 10h07 55.30 0.10 140.0km -180 QUIF Sn 10h08 10.80 -0.60 140.0km -180 QUIF Sg 10h08 9.80 -2.90 140.0km -180 74.4 0.2 3.50 SGMF Pn 10h07 55.60 -0.50 146.7km -180 SGMF Pg 10h07 58.10 0.50 146.7km -180 SGMF Sn 10h08 11.70 -1.20 146.7km -180 136.4 0.2 3.80 GRR Pg 10h08 2.30 0.90 170.0km -180 GRR Sn 10h08 18.80 0.90 170.0km -180 69.5 0.2 3.80 ROSF Pn 10h07 59.60 -0.60 181.2km -180 ROSF Pg 10h08 3.20 0 181.2km -180 ROSF Sn 10h08 21.70 1.50 181.2km -180 69.9 0.3 3.50 LDF Pn 10h08 5.80 0.90 218.9km -180 LDF Pg 10h08 8.80 -0.60 218.9km -180 LDF Sg 10h08 34.40 -0.40 218.9km -180 30.5 0.2 3.30 FLN Pg 10h08 9.30 -0.30 220.0km -180 LFF Pg 10h08 22.80 -1.20 306.7km -180 LFF Sn 10h08 46.90 -0.30 306.7km -180 LFF Sg 10h08 57.40 -2.10 306.7km -180 359.4 0.4 4.50 TCF Pn 10h08 18.30 0.70 322.3km -180 TCF Pg 10h08 26.40 -0.20 322.3km -180 TCF Sg 10h08 59.40 -4.50 322.3km -180 46.3 0.3 3.60 RJF Pg 10h08 26.90 0.20 323.4km -180 RJF Sn 10h08 54.40 3.60 323.4km -180 259.5 0.3 4.70 BGF Pn 10h08 23.80 1.20 363.4km -180 BGF Sn 10h08 56.40 -3.00 363.4km -180 BGF Sg 10h09 15.50 0.10 363.4km -180 131.6 0.3 4.10 CAF Pn 10h08 24.80 -0.20 383.4km -180 AVF Pn 10h08 27.70 0.80 397.9km -180 AVF Pg 10h08 40.20 1.00 397.9km -180 AVF Sn 10h09 3.70 -3.20 397.9km -180 AVF Sg 10h09 22.80 -2.40 397.9km -180 20.8 0.3 3.40 SSF Pn 10h08 28.40 0.30 407.9km -180 SSF Pg 10h08 42.40 1.60 407.9km -180 LOR Sn 10h09 11.70 -3.20 434.5km -180 LOR Sg 10h09 33.30 -2.30 434.5km -180 17.2 0.2 3.50 SMF Pn 10h08 33.40 1.70 436.8km -180 SJPF Pn 10h08 29.40 -2.20 436.8km -180 SMF Pg 10h08 45.40 -0.30 436.8km -180 SMF Sg 10h09 35.00 -1.20 436.8km -180 19.8 0.3 3.40 ETSF Pn 10h08 38.70 3.10 469.0km -180 ETSF Sg 10h09 46.30 1.20 469.0km -180 32.1 0.4 3.60 EPF Pn 10h08 35.40 -1.00 475.7km -180 MTLF Pn 10h08 40.70 -1.00 519.0km -180 MTLF Pg 10h08 56.70 -2.50 519.0km -180 MTLF Sn 10h09 33.30 0.30 519.0km -180 MTLF Sg 10h10 0.80 1.60 519.0km -180 16.2 0.6 3.20 LASF Pn 10h08 46.40 0.50 553.5km -180 LASF Sg 10h10 8.60 -0.20 553.5km -180 17.0 0.4 3.40 VIVF Pn 10h08 48.20 1.40 561.2km -180 VIVF Pg 10h09 6.70 0.50 561.2km -180 GIVF Pn 10h08 52.40 0.70 601.2km -180 GIVF Sn 10h09 50.60 0.10 601.2km -180 6.2 0.3 3.20 CABF Sn 10h09 49.60 -2.70 607.9km -180 CABF Sg 10h10 25.60 1.30 607.9km -180 16.7 0.7 3.30 HAU Pn 10h08 53.20 -1.90 627.9km -180 ORIF Sg 10h10 37.20 3.00 643.5km -180 5.0 0.5 3.10 HINF Pn 10h08 58.90 -0.60 663.5km -180 HINF Sn 10h10 2.10 -2.00 663.5km -180 HINF Sg 10h10 42.70 2.90 663.5km -180 8.7 0.4 3.40 SMRF Pg 10h09 27.80 3.20 672.4km -180 CDF Pn 10h09 4.40 0.10 703.5km -180 CDF Sn 10h10 10.60 -2.00 703.5km -180 1.8 0.3 2.90 MBDF Pg 10h09 29.80 -2.40 716.8km -180 PGF Sn 10h11 17.30 2.70 991.3km -180 3.7 0.8 3.00

	Automatic location (unconfirmed)