MANUAL Location - Area: Francia , magnitude (ML): 1.6
2025-07-17 05:33:54 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-07-17 08:41:50

20 km
Lat : Lon
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Earthquake info - Manual location
Event - ID :250717053225
Magnitude (ML) :1.6 +/- 0.1
Origin Time :2025-07-17 05:33:54.841 (UTC)
Location : Latitude: 45.408 N, Longitude: 6.533 E
Area :Francia
Depth (km) :6.01
Distances (km) : 38.9 --- Bardonecchia
41.8 --- Moncenisio
44.8 --- Novalesa
46.3 --- Salbertrand
46.4 --- Exilles
46.4 --- Venaus
47.2 --- La Thuile
47.8 --- Chiomonte
47.8 --- Oulx
48.0 --- Giaglione
48.2 --- Valgrisenche
48.9 --- Mompantero
49.0 --- Rhemes-Notre-Dame
49.4 --- Sauze d Oulx
49.5 --- Gravere
50.5 --- Susa
52.6 --- Meana di Susa
53.0 --- Pre -Saint-Didier
54.2 --- Pragelato
54.6 --- Cesana Torinese

Quality location estimate: Erh: 0.9 km, Erz: 1.8 km, Nf: 26, Gap: 193 °, Rms: 0.20


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.
OGMOFR2025-07-17 05:34:00.1900.01500.350.362025-07-17 05:34:03.0900.0762-0.211.2325.9
RSLFR2025-07-17 05:34:01.2700.02310.031.502025-07-17 05:34:05.3700.0982-0.151.3532.5
LSDGU2025-07-17 05:34:03.9500.04520.141.102025-07-17 05:34:09.6400.1464-0.241.1148.0
MRGEIV2025-07-17 05:34:05.6940.02000.011.482025-07-17 05:34:12.3500.1002-0.610.4358.0
RRLGU2025-07-17 05:34:05.5600.0351-0.121.442025-07-17 05:34:13.3030.04000.031.3058.3
RSPGU2025-07-17 05:34:06.6400.0341-0.011.482025-07-17 05:34:14.1200.1925-0.700.3764.5
OGAGFR2025-07-17 05:34:07.2500.0361-0.071.472025-07-17 05:34:16.1690.0400-0.101.2769.3
LATOIV2025-07-17 05:34:08.3020.02000.081.312025-07-17 05:34:17.3920.0400-0.011.2473.8
BHBGU2025-07-17 05:34:10.2100.04420.161.072025-07-17 05:34:20.2290.1002-0.350.8985.9
CANIGU2025-07-17 05:34:11.8800.02000.870.072025-07-17 05:34:22.2570.04000.430.5390.6
SURFFR2025-07-17 05:34:13.5400.0542-0.021.322025-07-17 05:34:27.7200.04000.610.35105.6
PZZGU2025-07-17 05:34:13.8400.0562-0.330.922025-07-17 05:34:27.6790.0400-0.280.94110.4


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
LSD GUHH1.431.33e-148.083
MRGE IVHH1.376.79e-258.045
RRL GUHH1.651.00e-158.3160
RSP GUHH1.691.40e-164.5117
OGAG FRHH1.446.36e-269.3180
BHB GUHH1.665.95e-285.9138
CANI GUHH1.433.42e-290.688
PZZ GUHH1.696.59e-2110.4155


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 GUHHZ8.9459e-61.4440e-69.6009e-73.3246e-71.4691e-72.4746e-53.6886e-62.1757e-73.6447e-848.083
LSD GUHHN1.4343e-52.0831e-61.0741e-62.5309e-71.0868e-76.1132e-54.6830e-61.9243e-74.6946e-848.083
LSD GUHHE1.3622e-52.0127e-61.0043e-62.7241e-71.3524e-71.6885e-54.8057e-62.3703e-74.9358e-848.083
MRGE IVHHZ3.2614e-67.4396e-74.6872e-72.1728e-78.2224e-85.4700e-62.7289e-61.0956e-71.7334e-858.045
MRGE IVHHN5.7649e-68.5269e-75.3654e-72.8697e-71.4991e-71.3527e-52.3421e-61.6331e-72.0663e-858.045
MRGE IVHHE5.3366e-66.4085e-75.5752e-73.0219e-71.2930e-71.1144e-53.0753e-61.5885e-72.2353e-858.045
RRL GUHHZ2.4690e-65.5487e-75.8788e-73.3127e-71.0781e-77.7080e-64.1538e-61.4844e-71.8681e-858.3160
RRL GUHHN4.2470e-61.0020e-68.5503e-74.0928e-71.4198e-71.2094e-55.3439e-61.9125e-72.8146e-858.3160
RRL GUHHE3.3647e-68.0925e-78.0497e-73.8839e-71.2297e-71.2686e-55.0969e-61.6719e-72.1808e-858.3160
RSP GUHHZ7.3903e-61.0103e-65.6800e-72.4180e-71.0944e-71.6326e-52.9822e-61.4572e-72.3168e-864.5117
RSP GUHHN1.0011e-52.0807e-61.3197e-63.9061e-71.7874e-73.3315e-54.3828e-62.4226e-74.7157e-864.5117
RSP GUHHE1.1315e-52.0262e-61.2460e-63.3317e-71.5051e-73.0951e-55.4951e-62.1152e-74.7547e-864.5117
OGAG FRHHZ1.7442e-64.7288e-74.6324e-72.9094e-72.1265e-77.5225e-62.9964e-62.9188e-71.6555e-869.3180
OGAG FRHHN1.9018e-65.1162e-75.3552e-73.9429e-72.2005e-75.8314e-63.3035e-62.6491e-72.2603e-869.3180
OGAG FRHHE1.7869e-65.3502e-74.2742e-73.4938e-71.6806e-73.4086e-62.1605e-61.7573e-71.5166e-869.3180
BHB GUHHZ3.3717e-65.9735e-73.8067e-71.1869e-75.9951e-81.1901e-51.8844e-67.5434e-81.2400e-885.9138
BHB GUHHN2.6941e-66.8542e-74.5575e-73.0307e-79.4452e-81.0410e-51.5444e-61.2243e-71.6880e-885.9138
BHB GUHHE2.8496e-66.4613e-74.2224e-71.4597e-75.7424e-87.2813e-61.6124e-69.3250e-81.4161e-885.9138
CANI GUHHZ2.7920e-64.7685e-72.8481e-71.2012e-75.0727e-88.5619e-61.2025e-67.3351e-81.1683e-890.688
CANI GUHHN3.0852e-65.0059e-73.5179e-71.1755e-74.9718e-89.4063e-61.3833e-66.9722e-81.2294e-890.688
CANI GUHHE3.3860e-65.7438e-73.2192e-71.1698e-75.4523e-89.3196e-61.6762e-68.0023e-81.5040e-890.688
PZZ GUHHZ2.1752e-65.7645e-75.6547e-72.7508e-71.1461e-77.9190e-62.6573e-61.4219e-71.4452e-8110.4155
PZZ GUHHN2.3099e-67.1790e-76.2637e-72.3191e-71.0391e-76.0023e-62.8894e-61.4689e-71.7355e-8110.4155
PZZ GUHHE2.4734e-66.9158e-76.5024e-72.3696e-71.2805e-77.9662e-62.8536e-61.5330e-72.0726e-8110.4155
*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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