MANUAL Location - Area: Francia , magnitude (ML): 0.5
2025-02-03 22:46:33 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-02-04 08:58:25

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Earthquake info - Manual location
Event - ID :250203224609
Magnitude (ML) :0.5 +/- 0.2
Origin Time :2025-02-03 22:46:33.812 (UTC)
Location : Latitude: 45.492 N, Longitude: 6.623 E
Area :Francia
Depth (km) :5.02
Distances (km) : 35.7 --- La Thuile
37.6 --- Valgrisenche
39.5 --- Rhemes-Notre-Dame
41.4 --- Pre -Saint-Didier
42.5 --- Moncenisio
43.2 --- Courmayeur
43.7 --- Morgex
44.9 --- La Salle
45.2 --- Rhemes-Saint-Georges
45.4 --- Novalesa
46.3 --- Bardonecchia
47.0 --- Avise
47.0 --- Valsavarenche
47.8 --- Venaus
48.1 --- Ceresole Reale
48.4 --- Arvier
49.1 --- Introd
49.1 --- Saint-Nicolas
49.7 --- Giaglione
49.9 --- Exilles

Quality location estimate: Erh: 1.1 km, Erz: 2.2 km, Nf: 20, Gap: 189 °, Rms: 0.18


Manual location results
Station Net P arrival time P pick
err
P pick
weight
P res Nll
weight
S arrival time S pick
err
S pick
weight
S res Nll
weight
Dist.
RSLFR2025-02-03 22:46:38.4760.0200-0.021.612025-02-03 22:46:41.2120.0400-0.350.4722.4
OGMOFR2025-02-03 22:46:40.4800.02000.540.182025-02-03 22:46:44.1500.04000.041.5432.3
LSDGU2025-02-03 22:46:41.8800.03810.310.822025-02-03 22:46:46.8180.10020.061.4140.7
MRGEIV2025-02-03 22:46:42.8920.02000.041.582025-02-03 22:46:48.8050.0400-0.041.3946.5
BLANCGU2025-02-03 22:46:43.2250.02000.280.922025-02-03 22:46:48.2460.0400-0.800.0846.8
RSPGU2025-02-03 22:46:45.4850.02000.041.532025-02-03 22:46:53.3350.3177-0.021.0063.4
RRLGU2025-02-03 22:46:45.8560.02000.021.522025-02-03 22:46:54.0140.0400-0.141.1465.2
LATOIV2025-02-03 22:46:46.3610.0200-0.171.062025-02-03 22:46:54.8540.0400-0.230.9369.0
CIROGU2025-02-03 22:46:48.1420.02000.211.172025-02-03 22:46:55.9490.0400-1.300.0274.9
BHBGU2025-02-03 22:46:49.9220.02000.350.802025-02-03 22:47:00.1110.1374-0.290.8388.7


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
LSD GUHH0.482.11e-240.795
MRGE IVHH0.329.49e-346.548
BLANCGUHH0.331.11e-246.832
RSP GUHH0.255.38e-363.4127
RRL GUHH0.566.50e-365.2168
CIRO GUHH0.715.39e-374.980
BHB GUHH0.695.95e-388.7145


Results of PGA, PGV, IH, spectral amplitudes (SA) values calculation
Station Net Channel PGA
(g)
PGV
(m/s)
IH 0*
(m)
IH 1*
(m)
IH 2*
(m)
Sa(T=0.10)
(g)
Sa(T=0.30)
(g)
Sa(T=1.00)
(g)
Sa(T=3.00)
(g)
Dist.
(km)
Azim.
(°)
LSD GUHHZ2.4347e-62.4859e-71.1644e-73.4720e-81.4890e-84.7686e-64.3526e-72.4959e-85.1186e-940.795
LSD GUHHN3.7575e-64.2911e-71.6030e-75.7776e-83.1754e-86.2223e-67.2976e-75.4390e-81.0508e-840.795
LSD GUHHE2.7057e-63.2405e-71.2774e-74.3807e-81.8295e-83.7854e-65.4518e-72.9709e-86.0096e-940.795
MRGE IVHHZ1.0304e-61.0193e-74.3665e-82.1435e-88.3521e-91.0102e-61.6515e-71.3061e-82.4198e-946.548
MRGE IVHHN2.1303e-62.5081e-76.3316e-82.3284e-81.1366e-83.7897e-63.1103e-71.9637e-85.1582e-946.548
MRGE IVHHE1.7986e-61.9000e-75.3325e-82.5344e-81.0420e-82.5559e-62.0355e-71.6159e-83.3143e-946.548
BLANCGUHHZ8.2100e-71.0286e-76.1077e-81.9818e-81.0050e-82.6525e-63.6548e-71.3769e-82.8534e-946.832
BLANCGUHHN1.8137e-62.5360e-78.6099e-82.4778e-81.3578e-82.9677e-62.7821e-72.4935e-85.2805e-946.832
BLANCGUHHE1.2534e-61.8038e-71.2279e-73.8694e-82.0375e-82.4136e-64.8528e-73.1046e-84.2806e-946.832
RSP GUHHZ3.9791e-74.9006e-82.5547e-89.6744e-94.2572e-98.8818e-79.2464e-87.1890e-91.1346e-963.4127
RSP GUHHN5.2041e-77.7378e-84.4419e-82.0859e-81.4015e-81.6085e-61.4789e-71.8274e-82.4865e-963.4127
RSP GUHHE6.3122e-77.9356e-84.3666e-81.0538e-85.8634e-91.6664e-62.0392e-79.6627e-91.7848e-963.4127
RRL GUHHZ4.8586e-76.6096e-83.2697e-81.4378e-87.7588e-91.0525e-61.3725e-71.0090e-81.4418e-965.2168
RRL GUHHN3.5320e-75.5013e-84.9149e-82.1672e-81.1149e-81.6200e-62.6900e-71.7311e-81.4006e-965.2168
RRL GUHHE2.8721e-78.8671e-85.5067e-81.9377e-81.0371e-87.4951e-73.5689e-71.8923e-82.4334e-965.2168
CIRO GUHHZ2.8492e-74.5514e-83.1113e-81.3182e-85.3341e-97.4784e-71.5859e-78.5052e-91.0871e-974.980
CIRO GUHHN3.5916e-75.2495e-84.2908e-82.1717e-89.5949e-98.0651e-72.4605e-71.2481e-81.7029e-974.980
CIRO GUHHE2.7256e-73.7595e-82.1214e-81.1577e-86.0518e-96.6337e-78.2752e-86.5518e-98.6826e-1074.980
BHB GUHHZ1.0195e-61.3753e-75.2502e-83.0791e-82.1868e-81.4841e-62.1182e-74.7012e-82.9806e-988.7145
BHB GUHHN9.3550e-71.2515e-74.8832e-82.2780e-81.1857e-81.1647e-61.9598e-72.0412e-82.0634e-988.7145
BHB GUHHE5.4557e-79.4123e-84.8470e-82.6593e-81.4895e-81.0410e-61.8386e-72.9529e-82.5083e-988.7145
*IH (Housner Intensity) calculated on the velocity spectrum (SV) between 0.1 and 0.5 s (IH0), 0.1 and 1.0 s (IH1), 0.1 and 1.5 s (IH2)

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