MANUAL Location - Area: Alpi Cozie , magnitude (ML): 0.7
2025-09-02 11:20:15 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-09-03 08:35:27

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Earthquake info - Manual location
Event - ID :250902111857
Magnitude (ML) :0.7 +/- 0.2
Origin Time :2025-09-02 11:20:15.412 (UTC)
Location : Latitude: 44.379 N, Longitude: 7.279 E
Area :Alpi Cozie
Depth (km) :11.02
Distances (km) : 4.6 --- Pradleves
4.9 --- Monterosso Grana
6.3 --- Castelmagno
7.1 --- Demonte
8.6 --- Aisone
8.7 --- Valloriate
8.8 --- Valgrana
10.0 --- Rittana
10.1 --- Montemale di Cuneo
10.9 --- Moiola
11.1 --- Cartignano
11.2 --- Gaiola
11.4 --- Vinadio
12.0 --- Dronero
12.1 --- Roccabruna
12.4 --- San Damiano Macra
12.5 --- Bernezzo
12.6 --- Caraglio
13.4 --- Roccasparvera
14.0 --- Celle di Macra

Quality location estimate: Erh: 0.7 km, Erz: 0.9 km, Nf: 36, Gap: 81 °, Rms: 0.25


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.
VINDIV2025-09-02 11:20:18.9580.02000.420.772025-09-02 11:20:20.6720.0400-0.011.4215.8
STVGU2025-09-02 11:20:19.2230.01100.181.322025-09-02 11:20:21.4700.0621-0.061.3419.4
PZZGU2025-09-02 11:20:20.2100.01200.251.232025-09-02 11:20:23.0600.0702-0.151.1322.9
ENRGU2025-09-02 11:20:20.0500.01700.350.952025-09-02 11:20:22.5800.0742-0.061.3423.4
ISOFR2025-09-02 11:20:21.6220.02000.560.452025-09-02 11:20:25.1000.09420.241.2930.7
SURFFR2025-09-02 11:20:23.0500.02010.051.432025-09-02 11:20:28.2300.1223-0.250.8840.2
TURFFR2025-09-02 11:20:24.8000.02410.570.462025-09-02 11:20:30.3300.1484-0.171.0447.1
GBOSGU2025-09-02 11:20:24.2900.02510.171.382025-09-02 11:20:30.2510.21360.171.2148.6
SAOFFR2025-09-02 11:20:24.9990.02000.291.202025-09-02 11:20:30.7680.1835-0.490.4950.1
BHBGU2025-09-02 11:20:24.4850.02000.101.432025-09-02 11:20:30.7860.04000.191.3352.0
MGROGU2025-09-02 11:20:25.6670.0200-0.270.752025-09-02 11:20:32.6200.0400-0.790.1757.8
ESCAFR2025-09-02 11:20:27.1300.02000.371.012025-09-02 11:20:34.0100.2887-0.740.3062.5
BIGNGU2025-09-02 11:20:27.4940.0200-0.071.302025-09-02 11:20:35.8130.0400-0.240.9068.4
ROROGU2025-09-02 11:20:27.7580.02000.041.432025-09-02 11:20:36.5330.10020.231.2070.3
IMIGU2025-09-02 11:20:28.2360.02000.191.362025-09-02 11:20:36.8900.2196-0.131.0372.5
RRLGU2025-09-02 11:20:28.2400.0371-0.091.262025-09-02 11:20:37.0900.2186-0.400.6672.8
PCPGU2025-09-02 11:20:33.3840.02000.560.582025-09-02 11:20:46.0400.04000.760.34102.7


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
STV GUHH0.751.07e-119.4166
PZZ GUHH0.591.35e-122.9318
ISO FRHH0.544.13e-230.7220
TURF FRHH0.541.81e-247.1169
GBOS GUHH0.942.16e-248.6109
SAOF FRHH0.351.02e-250.1153
BHB GUHH0.571.44e-252.0359
MGRO GUHH0.651.53e-257.8131
ESCA FRHH0.741.58e-262.5173
BIGN GUEH0.821.57e-268.4147
RORO GUHH0.731.20e-270.3115
IMI GUHH1.113.60e-272.5137
RRL GUHH0.676.59e-372.8327
PCP GUHH0.776.09e-3102.779


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.
(°)
STV GUHHZ1.7224e-52.1731e-67.4716e-72.3990e-71.2299e-71.6584e-53.6388e-62.0775e-74.3661e-819.4166
STV GUHHN2.2272e-52.5204e-67.3762e-72.3874e-71.4041e-73.0405e-53.1714e-62.1902e-75.4489e-819.4166
STV GUHHE3.4989e-53.7080e-65.8841e-72.1312e-71.3073e-73.1829e-52.0075e-62.6044e-76.3047e-819.4166
PZZ GUHHZ1.3726e-52.4284e-61.0339e-62.8483e-71.5246e-72.8001e-54.6358e-62.1595e-74.5527e-822.9318
PZZ GUHHN1.7000e-52.3452e-61.0361e-64.5522e-71.9918e-72.7841e-53.6672e-62.7936e-75.5905e-822.9318
PZZ GUHHE1.1279e-51.6329e-69.6631e-72.4226e-71.2776e-72.6443e-54.8218e-62.0248e-73.6828e-822.9318
ENR GUHHZ1.4789e-41.2932e-52.6532e-66.6837e-73.8408e-71.6081e-49.6818e-68.0367e-72.3474e-723.4146
ENR GUHHN2.0491e-41.9939e-53.2380e-69.2611e-75.9557e-72.3162e-41.4544e-51.3616e-63.9654e-723.4146
ENR GUHHE2.2152e-41.9484e-53.7532e-69.1787e-75.9169e-71.8844e-41.3751e-51.1589e-63.6402e-723.4146
ISO FRHHZ3.7178e-65.4783e-71.9076e-76.8276e-84.1139e-81.0929e-57.3409e-77.1112e-81.3073e-830.7220
ISO FRHHN6.3593e-66.4659e-72.5493e-78.4797e-85.6389e-81.0291e-51.0004e-69.0689e-81.4754e-830.7220
ISO FRHHE7.3163e-68.3062e-72.9430e-71.1351e-77.3321e-81.3022e-51.2548e-61.1786e-71.9513e-830.7220
TURF FRHHZ1.5404e-62.6738e-71.1901e-77.5020e-87.7289e-83.7939e-66.7756e-71.0714e-71.3992e-847.1169
TURF FRHHN1.9065e-62.8051e-71.6884e-76.1891e-82.6846e-86.0346e-61.0088e-64.3471e-86.8766e-947.1169
TURF FRHHE1.1317e-61.3337e-78.8362e-83.7333e-81.7993e-83.4987e-64.0348e-72.2959e-84.1043e-947.1169
GBOS GUHHZ3.9762e-65.2703e-72.2115e-76.2650e-83.2183e-89.6616e-67.6889e-75.5035e-81.1648e-848.6109
GBOS GUHHN2.6855e-63.0433e-71.5573e-78.0187e-83.4704e-85.8251e-69.0367e-75.1029e-88.5908e-948.6109
GBOS GUHHE2.9102e-64.2102e-72.0441e-76.7471e-82.9781e-89.9453e-67.5202e-74.6216e-89.4047e-948.6109
SAOF FRHHZ7.5490e-71.3545e-79.6234e-84.3682e-82.1606e-81.5503e-66.2823e-72.6525e-83.3598e-950.1153
SAOF FRHHN1.0827e-61.3603e-77.7864e-84.0878e-82.3442e-81.8126e-63.5972e-73.2254e-84.2939e-950.1153
SAOF FRHHE1.2941e-61.5393e-71.0414e-74.4384e-82.6938e-81.9681e-67.6326e-73.9366e-83.8505e-950.1153
BHB GUHHZ2.6254e-63.3119e-71.1460e-73.1768e-81.8779e-84.5677e-64.1170e-73.5948e-87.7146e-952.0359
BHB GUHHN2.1637e-63.1110e-71.0738e-72.9207e-81.6147e-84.7247e-64.1822e-72.9728e-86.5257e-952.0359
BHB GUHHE2.2987e-62.8018e-79.3544e-83.2617e-81.6074e-83.8664e-63.5193e-72.5196e-85.0511e-952.0359
MGRO GUHHZ1.2287e-61.5191e-78.0003e-86.0061e-82.6435e-81.7142e-64.4516e-74.2073e-83.3582e-957.8131
MGRO GUHHN1.6153e-62.0203e-71.1540e-76.5030e-83.0988e-82.5778e-66.8944e-74.4993e-84.4575e-957.8131
MGRO GUHHE1.5351e-61.9155e-71.1902e-75.4365e-82.3980e-82.5333e-67.7093e-73.6438e-85.0187e-957.8131
ESCA FRHHZ9.6237e-71.4190e-77.4646e-82.7335e-81.6848e-82.3806e-63.7159e-72.2849e-83.2483e-962.5173
ESCA FRHHN2.5105e-63.2384e-71.1365e-73.9793e-82.0985e-86.0197e-64.8026e-72.6481e-87.2052e-962.5173
ESCA FRHHE1.3286e-61.7391e-71.0429e-74.3576e-82.5504e-84.0711e-65.3019e-73.7604e-84.0243e-962.5173
BIGN GUEHZ1.0929e-61.1241e-75.0813e-83.2837e-83.0181e-81.0449e-62.0993e-74.4085e-83.3657e-968.4147
BIGN GUEHN2.6445e-62.8329e-71.2190e-76.8344e-84.7857e-83.4938e-64.6478e-77.0402e-88.0406e-968.4147
BIGN GUEHE3.7647e-63.5880e-78.4852e-84.8244e-83.8745e-83.4028e-63.2312e-76.4422e-86.4450e-968.4147
RORO GUHHZ2.2436e-63.4137e-71.1253e-73.4191e-82.1840e-85.3313e-63.4964e-73.8560e-87.0755e-970.3115
RORO GUHHN2.1285e-62.5275e-71.2973e-73.2069e-81.8289e-84.0631e-66.5259e-73.1986e-85.4349e-970.3115
RORO GUHHE2.7158e-62.7811e-71.1386e-72.9945e-81.6144e-84.1836e-64.8228e-72.6535e-85.9790e-970.3115
IMI GUHHZ1.5234e-62.4211e-79.2918e-83.8569e-82.6222e-83.7950e-65.8523e-74.1195e-85.8569e-972.5137
IMI GUHHN5.7895e-66.8539e-72.6666e-71.1843e-75.1525e-88.7392e-69.1196e-76.4296e-81.4868e-872.5137
IMI GUHHE2.3172e-62.5027e-71.2462e-73.6286e-82.7830e-85.5369e-64.7723e-74.3568e-85.2291e-972.5137
RRL GUHHZ4.4965e-76.9670e-83.8736e-81.6520e-89.8406e-99.7749e-72.3437e-71.5237e-81.8233e-972.8327
RRL GUHHN7.1972e-79.9486e-86.4028e-82.0678e-81.3536e-82.7051e-63.7668e-71.6412e-82.5652e-972.8327
RRL GUHHE5.1909e-71.0564e-76.4618e-82.4575e-81.5778e-81.5906e-62.4080e-72.7133e-82.3875e-972.8327
PCP GUHHZ5.8487e-76.7636e-85.4270e-82.5362e-81.5514e-81.0168e-63.4795e-71.7174e-81.7207e-9102.779
PCP GUHHN5.9583e-78.7648e-84.7765e-82.5957e-81.5355e-81.4583e-61.6950e-71.6410e-82.1591e-9102.779
PCP GUHHE5.6785e-79.6637e-86.2135e-82.1773e-81.5318e-81.1320e-63.9317e-71.9069e-82.5598e-9102.779
*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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