MANUAL Location - Area: Alpi Cozie , magnitude (ML): 0.9
2025-10-05 22:03:36 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-10-06 09:24:24

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Earthquake info - Manual location
Event - ID :251005220231
Magnitude (ML) :0.9 +/- 0.2
Origin Time :2025-10-05 22:03:36.212 (UTC)
Location : Latitude: 44.513 N, Longitude: 6.886 E
Area :Alpi Cozie
Depth (km) :10.20
Distances (km) : 9.2 --- Acceglio
12.9 --- Bellino
13.5 --- Argentera
13.8 --- Prazzo
16.4 --- Elva
16.6 --- Pontechianale
16.8 --- Canosio
16.9 --- Casteldelfino
17.5 --- Marmora
19.1 --- Stroppo
22.0 --- Pietraporzio
23.2 --- Macra
23.5 --- Celle di Macra
24.4 --- Sambuco
25.2 --- Sampeyre
28.3 --- Castelmagno
29.4 --- San Damiano Macra
29.9 --- Crissolo
30.2 --- Oncino
31.3 --- Ostana

Quality location estimate: Erh: 0.9 km, Erz: 2.2 km, Nf: 38, Gap: 155 °, 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.
PZZGU2025-10-05 22:03:40.5800.0100-0.011.542025-10-05 22:03:43.1700.0541-0.580.3821.6
VINDIV2025-10-05 22:03:41.1020.0200-1.630.062025-10-05 22:03:45.8150.0400-1.460.0633.8
ISOFR2025-10-05 22:03:44.0500.02000.261.152025-10-05 22:03:48.6400.1173-0.290.9340.4
OGAGFR2025-10-05 22:03:44.1090.0200-0.061.442025-10-05 22:03:49.9120.04000.091.4342.6
STVGU2025-10-05 22:03:44.7500.02000.031.522025-10-05 22:03:50.5600.1715-0.031.2947.2
RRLGU2025-10-05 22:03:45.2500.02810.071.482025-10-05 22:03:51.1240.6259-0.390.6647.6
BHBGU2025-10-05 22:03:45.2900.02310.301.052025-10-05 22:03:50.9340.1905-0.171.1347.8
ENRGU2025-10-05 22:03:45.9600.02710.101.442025-10-05 22:03:52.8900.16650.370.8754.0
MVIFFR2025-10-05 22:03:49.9280.08030.301.052025-10-05 22:03:58.8940.1303-0.280.9672.5
TURFFR2025-10-05 22:03:49.7830.02000.291.072025-10-05 22:03:58.6640.0400-0.151.1772.8
RSPGU2025-10-05 22:03:50.4320.02000.330.972025-10-05 22:03:59.6920.0400-0.091.2377.5
OGMOFR2025-10-05 22:03:50.4610.0200-0.211.082025-10-05 22:04:00.0600.0400-0.790.2579.5
SAOFFR2025-10-05 22:03:50.5890.0200-0.011.422025-10-05 22:04:00.2860.0400-0.320.9079.8
GBOSGU2025-10-05 22:03:50.8600.04120.291.072025-10-05 22:04:00.5500.31270.071.0282.3
ESCAFR2025-10-05 22:03:52.0680.02000.301.052025-10-05 22:04:02.1930.1303-0.420.7585.9
MLIGIV2025-10-05 22:03:51.4720.0200-0.400.722025-10-05 22:04:02.4770.0400-0.310.9186.8
MGROGU2025-10-05 22:03:52.2580.0200-0.151.202025-10-05 22:04:03.8900.04000.111.1990.9
ROROGU2025-10-05 22:03:54.1290.0200-0.041.352025-10-05 22:04:07.3830.04000.610.46104.4
IMIGU2025-10-05 22:03:54.2920.0200-0.111.262025-10-05 22:04:07.7270.04000.580.51105.1


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
PZZ GUHH0.993.78e-121.692
ISO FRHH0.693.46e-240.4160
OGAG FRHH0.793.92e-242.6318
STV GUHH0.681.65e-247.2130
RRL GUHH0.872.56e-247.6351
BHB GUHH0.762.63e-247.840
ENR GUHH1.066.24e-254.0126
TURF FRHH0.851.45e-272.8146
RSP GUHH0.931.63e-277.523
SAOF FRHH0.771.00e-279.8137
GBOS GUHH1.191.26e-282.3111
ESCA FRHH1.051.62e-285.9153
MGRO GUHH0.838.42e-390.9125
RORO GUHH1.009.09e-3104.4115
IMI GUHH1.171.76e-2105.1129


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.
(°)
PZZ GUHHZ2.2275e-54.0917e-61.9139e-64.3452e-72.4909e-77.2219e-57.4358e-64.2106e-79.4790e-821.692
PZZ GUHHN3.2875e-54.8111e-62.2240e-67.0779e-73.2443e-71.0544e-49.4254e-65.7406e-71.0954e-721.692
PZZ GUHHE2.8725e-56.1455e-63.2694e-67.4198e-73.8660e-77.8016e-51.3950e-56.5329e-71.3016e-721.692
ISO FRHHZ2.8871e-66.2376e-72.5863e-77.3394e-84.4784e-88.6965e-61.2049e-66.8921e-81.1893e-840.4160
ISO FRHHN2.2473e-63.5485e-71.7740e-76.5761e-83.4236e-85.7623e-61.0554e-65.4787e-86.4503e-940.4160
ISO FRHHE2.8596e-64.9340e-73.0357e-79.0202e-84.8438e-88.0526e-61.9383e-67.2773e-81.0776e-840.4160
OGAG FRHHZ1.0321e-62.2738e-72.3258e-71.1451e-75.7298e-82.8883e-61.2383e-67.3055e-87.3996e-942.6318
OGAG FRHHN1.1320e-62.5118e-71.8359e-78.3532e-83.6723e-82.8954e-61.0766e-64.3231e-85.7447e-942.6318
OGAG FRHHE1.4312e-63.8326e-72.8163e-72.2095e-71.4500e-73.1295e-61.7004e-62.3079e-71.1193e-842.6318
STV GUHHZ2.5240e-63.3589e-71.8057e-75.7138e-83.1199e-85.9344e-65.3544e-74.7390e-88.4022e-947.2130
STV GUHHN2.5021e-63.3567e-71.7554e-75.5054e-83.0534e-87.3239e-66.2503e-73.9246e-86.6158e-947.2130
STV GUHHE2.3445e-63.0271e-71.7971e-75.2939e-82.2537e-85.3489e-67.4369e-73.3649e-86.5692e-947.2130
RRL GUHHZ1.1990e-62.0207e-71.0682e-74.1175e-82.2797e-84.1996e-64.5612e-73.1341e-84.6137e-947.6351
RRL GUHHN1.9413e-62.7486e-72.0818e-76.4829e-83.0310e-87.9082e-68.3341e-74.7937e-87.7267e-947.6351
RRL GUHHE1.9119e-64.0121e-72.1796e-76.9979e-83.2180e-88.5712e-69.8757e-74.4207e-89.6312e-947.6351
BHB GUHHZ2.8795e-64.5162e-72.6179e-77.1490e-85.2452e-81.0518e-51.2635e-69.8026e-81.0288e-847.840
BHB GUHHN3.4415e-65.1149e-72.3147e-75.7858e-83.5458e-86.2164e-67.6904e-77.0455e-81.0894e-847.840
BHB GUHHE2.6109e-64.1463e-71.6389e-75.6740e-83.6420e-87.1257e-65.7308e-75.9776e-88.0400e-947.840
ENR GUHHZ5.3608e-66.7664e-72.9518e-79.3170e-86.4343e-81.1955e-51.0460e-61.0007e-71.4441e-854.0126
ENR GUHHN1.1949e-51.2529e-64.2570e-71.5655e-79.0478e-81.7831e-52.1537e-61.5193e-72.6253e-854.0126
ENR GUHHE1.3105e-51.3087e-65.0199e-71.2209e-76.7002e-81.8044e-51.6231e-61.1742e-72.3221e-854.0126
TURF FRHHZ9.6183e-71.3102e-79.1496e-83.7103e-82.7532e-81.7820e-65.7497e-74.0083e-83.7928e-972.8146
TURF FRHHN1.0271e-61.8813e-71.2349e-73.8151e-82.5341e-83.4583e-63.7863e-74.0491e-84.6048e-972.8146
TURF FRHHE6.3483e-71.3328e-71.3587e-76.5383e-82.6353e-82.0664e-66.0662e-73.3266e-84.2147e-972.8146
RSP GUHHZ9.9039e-71.4168e-78.4247e-82.8860e-81.4092e-82.2821e-64.6101e-72.5242e-82.8877e-977.523
RSP GUHHN1.2665e-62.2684e-71.2663e-73.5280e-81.6037e-83.4020e-65.6871e-72.3701e-84.3004e-977.523
RSP GUHHE1.4640e-62.4373e-71.6330e-73.8462e-82.0205e-84.1426e-69.0626e-73.2445e-86.1599e-977.523
SAOF FRHHZ4.7576e-71.0077e-79.6180e-84.0433e-81.9606e-81.2628e-64.7692e-73.1832e-82.7383e-979.8137
SAOF FRHHN4.4315e-71.1415e-78.1019e-83.9008e-82.1962e-81.4525e-65.9131e-73.6922e-83.1490e-979.8137
SAOF FRHHE5.1941e-79.6542e-88.4637e-84.0576e-82.2136e-81.7446e-65.4300e-73.3049e-82.5672e-979.8137
GBOS GUHHZ1.3821e-62.7426e-71.5330e-74.6445e-81.9929e-82.8401e-68.2561e-72.3819e-83.9287e-982.3111
GBOS GUHHN1.6063e-62.6401e-71.0734e-74.9918e-82.2893e-83.3028e-63.9067e-73.0616e-83.7413e-982.3111
GBOS GUHHE1.8034e-62.8270e-71.1554e-75.0119e-81.8623e-84.3831e-65.4043e-72.6232e-84.1317e-982.3111
ESCA FRHHZ1.1134e-61.2610e-77.9770e-82.8945e-82.1936e-81.8405e-64.1074e-74.2574e-83.1903e-985.9153
ESCA FRHHN9.2723e-72.2251e-71.0706e-76.7449e-87.8686e-82.3679e-63.2138e-71.3802e-71.3532e-885.9153
ESCA FRHHE1.2182e-61.8090e-71.3848e-73.6429e-82.5990e-83.6661e-65.3449e-74.4806e-84.7130e-985.9153
MGRO GUHHZ5.8450e-78.0471e-84.7507e-82.8255e-81.4415e-81.0397e-62.1119e-72.4273e-82.9794e-990.9125
MGRO GUHHN7.8251e-71.0874e-77.5524e-82.9556e-82.1924e-82.0568e-63.7529e-73.2108e-82.8237e-990.9125
MGRO GUHHE7.6333e-71.2483e-78.8008e-83.8624e-82.4055e-81.9189e-64.3892e-73.9015e-84.4860e-990.9125
RORO GUHHZ5.3645e-71.2737e-78.3051e-82.8209e-81.5099e-81.4370e-64.5669e-72.0303e-84.1518e-9104.4115
RORO GUHHN5.7176e-71.0735e-79.2750e-82.6010e-81.5032e-81.3542e-65.1520e-72.1357e-83.2903e-9104.4115
RORO GUHHE5.1505e-71.1611e-77.7097e-82.6135e-81.6086e-81.8405e-64.9029e-72.4924e-83.3207e-9104.4115
IMI GUHHZ6.0710e-71.2408e-77.1380e-85.7753e-89.1616e-82.1390e-63.2465e-71.7944e-71.5903e-8105.1129
IMI GUHHN1.8752e-62.5568e-71.4919e-76.9089e-83.6101e-83.7780e-68.0964e-75.6406e-85.6050e-9105.1129
IMI GUHHE9.0127e-71.6336e-79.7637e-84.1553e-82.6181e-82.0572e-67.4062e-73.9298e-84.0195e-9105.1129
*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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