MANUAL Location - Area: Alpi Cozie , magnitude (ML): 0.5
2025-10-02 00:38:28 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-10-02 07:32:13

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Earthquake info - Manual location
Event - ID :251002003804
Magnitude (ML) :0.5 +/- 0.2
Origin Time :2025-10-02 00:38:28.056 (UTC)
Location : Latitude: 44.366 N, Longitude: 7.276 E
Area :Alpi Cozie
Depth (km) :20.02
Distances (km) : 5.8 --- Demonte
6.0 --- Pradleves
6.1 --- Monterosso Grana
7.1 --- Castelmagno
7.3 --- Aisone
8.3 --- Valloriate
9.7 --- Valgrana
9.9 --- Rittana
10.2 --- Moiola
10.3 --- Vinadio
10.8 --- Gaiola
11.2 --- Montemale di Cuneo
12.5 --- Cartignano
12.8 --- Bernezzo
13.3 --- Dronero
13.3 --- Roccasparvera
13.4 --- Caraglio
13.5 --- Roccabruna
13.6 --- Valdieri
13.8 --- San Damiano Macra

Quality location estimate: Erh: 1 km, Erz: 0.4 km, Nf: 30, Gap: 108 °, Rms: 0.41


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.
VINDIV2025-10-02 00:38:31.5870.0200-0.730.492025-10-02 00:38:33.4270.0400-1.830.1522.5
STVGU2025-10-02 00:38:32.5600.0110-0.022.052025-10-02 00:38:34.6300.0561-1.070.2525.2
ENRGU2025-10-02 00:38:33.0800.0120-0.012.082025-10-02 00:38:35.5650.1002-1.010.3428.4
PZZGU2025-10-02 00:38:33.5400.01300.022.062025-10-02 00:38:36.6700.0742-0.760.5329.4
ISOFR2025-10-02 00:38:35.2760.02001.120.002025-10-02 00:38:38.8580.10020.571.0134.2
SURFFR2025-10-02 00:38:36.7300.02210.591.152025-10-02 00:38:41.6520.4309-0.290.8843.8
TURFFR2025-10-02 00:38:37.7170.02000.690.922025-10-02 00:38:43.3300.1434-0.071.2548.7
GBOSGU2025-10-02 00:38:36.9850.02000.021.832025-10-02 00:38:42.7400.1394-0.410.5951.4
SAOFFR2025-10-02 00:38:37.9670.02000.511.002025-10-02 00:38:44.0480.0400-0.061.3851.9
BHBGU2025-10-02 00:38:38.0910.02000.661.022025-10-02 00:38:43.6900.0400-0.390.5356.1
MVIFFR2025-10-02 00:38:36.7710.0200-1.710.152025-10-02 00:38:46.0030.1002-0.021.3056.8
MGROGU2025-10-02 00:38:38.7500.03310.121.352025-10-02 00:38:45.4710.0400-0.740.5259.7
ESCAFR2025-10-02 00:38:39.3600.02000.021.682025-10-02 00:38:47.7040.04000.281.0463.4
ROROGU2025-10-02 00:38:40.8360.02000.651.002025-10-02 00:38:48.9860.04000.091.2971.9
IMIGU2025-10-02 00:38:41.0530.02000.541.022025-10-02 00:38:49.7300.23760.101.1573.6


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
STV GUHH0.483.51e-225.2164
ENR GUHH0.719.86e-228.4143
PZZ GUHH0.294.25e-229.4321
TURF FRHH0.451.36e-248.7168
GBOS GUHH0.831.49e-251.4107
BHB GUHH0.215.33e-356.1359
MGRO GUHH0.215.14e-359.7130
ESCA FRHH0.581.05e-263.4172
RORO GUHH0.466.14e-371.9114
IMI GUHH0.791.69e-273.6136


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 GUHHZ9.3370e-69.6837e-71.4669e-74.5101e-82.9495e-85.9575e-66.4368e-77.0755e-81.9241e-825.2164
STV GUHHN5.7799e-64.9411e-71.1186e-74.1115e-82.5738e-85.4200e-64.7378e-74.1941e-88.3077e-925.2164
STV GUHHE8.9531e-68.8959e-72.2324e-75.8304e-83.6618e-81.6585e-57.8611e-77.5635e-81.8388e-825.2164
ENR GUHHZ1.8341e-51.6631e-63.6680e-71.2192e-77.0862e-82.4643e-51.7717e-61.4035e-73.3431e-828.4143
ENR GUHHN4.2658e-53.5252e-65.4074e-71.9772e-71.1001e-74.1607e-52.0238e-62.2321e-76.8595e-828.4143
ENR GUHHE4.4996e-54.0371e-64.0227e-71.4260e-78.6362e-82.0127e-52.3643e-62.0403e-76.0526e-828.4143
PZZ GUHHZ3.0644e-64.5837e-72.7362e-77.3083e-83.3731e-81.0690e-51.5576e-65.3579e-81.1548e-829.4321
PZZ GUHHN5.2916e-66.4984e-73.8746e-71.1633e-75.8634e-89.7380e-61.7689e-69.5780e-81.7191e-829.4321
PZZ GUHHE3.6104e-64.8199e-72.5241e-76.3425e-83.3480e-89.0511e-61.1812e-65.7533e-89.7524e-929.4321
ISO FRHHZ1.0582e-69.1622e-85.5641e-82.2556e-81.2272e-81.1421e-63.5733e-72.0117e-82.7337e-934.2222
ISO FRHHN1.3900e-61.3320e-73.5359e-81.0720e-87.3153e-91.2186e-61.2179e-71.3527e-82.5844e-934.2222
ISO FRHHE1.5134e-61.4280e-74.1840e-81.6411e-81.1961e-81.3740e-62.0682e-71.4285e-82.6299e-934.2222
TURF FRHHZ5.7216e-79.8073e-84.9393e-82.1550e-81.8551e-81.7617e-61.8737e-72.2831e-83.9378e-948.7168
TURF FRHHN9.5997e-71.5700e-76.6835e-82.3763e-82.0528e-82.5716e-62.4497e-72.9222e-84.7741e-948.7168
TURF FRHHE6.3406e-71.1542e-75.4888e-84.4973e-88.2096e-81.7339e-62.3145e-71.3897e-71.4012e-848.7168
GBOS GUHHZ1.2563e-62.6470e-71.2577e-74.1833e-81.9170e-84.3228e-65.1277e-72.6470e-85.3155e-951.4107
GBOS GUHHN1.2405e-62.0377e-71.2197e-77.3049e-86.7723e-84.1687e-63.1496e-79.3117e-86.8397e-951.4107
GBOS GUHHE1.2879e-61.8575e-71.0813e-73.8857e-81.6111e-84.4199e-64.7910e-72.2642e-84.9507e-951.4107
SAOF FRHHZ2.3939e-74.7734e-82.9788e-82.2141e-81.6277e-85.5951e-71.6890e-71.7955e-81.6494e-951.9152
SAOF FRHHN2.2980e-73.8055e-82.4351e-82.4718e-82.0536e-86.4131e-79.4823e-82.5928e-82.0173e-951.9152
SAOF FRHHE3.5653e-75.0273e-83.3471e-82.5070e-82.0081e-88.2930e-72.0946e-72.7377e-81.7434e-951.9152
BHB GUHHZ5.9269e-78.2857e-84.9031e-82.9699e-81.0936e-81.6901e-61.5795e-71.4724e-82.3374e-956.1359
BHB GUHHN6.4529e-78.5925e-83.7111e-81.5156e-88.5875e-91.7169e-61.4605e-71.1396e-81.6367e-956.1359
BHB GUHHE8.0593e-78.6304e-84.5282e-82.7506e-81.1117e-81.3324e-61.8865e-71.4850e-81.7856e-956.1359
MGRO GUHHZ5.2294e-77.1656e-83.1757e-82.1758e-81.5554e-81.5118e-69.7886e-81.9392e-81.8439e-959.7130
MGRO GUHHN5.5924e-76.9647e-83.7893e-82.2113e-82.0435e-81.5778e-62.0855e-73.3536e-82.7142e-959.7130
MGRO GUHHE3.7238e-75.4039e-83.4142e-82.1294e-81.6558e-81.1834e-62.0796e-71.8355e-81.6935e-959.7130
ESCA FRHHZ4.4422e-77.0732e-84.3426e-82.4684e-82.0762e-81.2889e-62.4498e-72.6726e-82.0141e-963.4172
ESCA FRHHN8.8851e-71.2295e-75.7049e-82.9216e-82.6667e-82.8501e-62.3699e-73.5583e-83.0088e-963.4172
ESCA FRHHE7.8551e-71.7374e-78.7996e-83.0317e-82.0056e-81.7549e-66.2344e-73.2234e-84.8694e-963.4172
RORO GUHHZ7.0136e-79.6949e-84.6906e-82.2577e-81.5881e-81.8433e-61.9330e-72.0030e-82.1362e-971.9114
RORO GUHHN6.0734e-71.0128e-75.6774e-82.2481e-81.6189e-82.1086e-62.5140e-72.2378e-83.0021e-971.9114
RORO GUHHE6.7440e-79.8200e-83.9987e-81.7297e-81.1302e-81.5212e-61.4949e-71.3347e-82.4190e-971.9114
IMI GUHHZ5.1136e-76.8144e-83.4720e-83.8665e-83.2512e-89.5074e-71.3253e-74.0872e-82.4703e-973.6136
IMI GUHHN1.6735e-61.8711e-76.8598e-88.5265e-89.9771e-82.0550e-62.4591e-71.3572e-71.6950e-873.6136
IMI GUHHE9.9467e-71.1147e-74.9142e-83.1907e-82.2094e-81.5420e-61.6562e-72.7831e-82.7817e-973.6136
*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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