MANUAL Location - Area: Alpi Cozie , magnitude (ML): 0.7
2025-10-01 16:10:25 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-10-02 07:18:16

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Earthquake info - Manual location
Event - ID :251001160854
Magnitude (ML) :0.7 +/- 0.2
Origin Time :2025-10-01 16:10:25.19 (UTC)
Location : Latitude: 44.388 N, Longitude: 7.315 E
Area :Alpi Cozie
Depth (km) :6.43
Distances (km) : 2.5 --- Monterosso Grana
4.5 --- Pradleves
5.8 --- Valgrana
7.1 --- Valloriate
7.4 --- Montemale di Cuneo
7.8 --- Rittana
8.0 --- Demonte
8.6 --- Castelmagno
9.2 --- Gaiola
9.4 --- Moiola
9.6 --- Bernezzo
9.6 --- Caraglio
9.7 --- Dronero
10.3 --- Roccabruna
10.3 --- Cartignano
11.1 --- Roccasparvera
11.1 --- Aisone
11.9 --- Villar San Costanzo
12.2 --- Cervasca
12.3 --- San Damiano Macra

Quality location estimate: Erh: 0.9 km, Erz: 1 km, Nf: 30, Gap: 145 °, Rms: 0.30


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.
VINDIV2025-10-01 16:10:27.7880.0200-0.600.542025-10-01 16:10:29.6880.0400-0.890.5415.5
STVGU2025-10-01 16:10:28.8100.01000.210.722025-10-01 16:10:30.8600.0581-0.091.7317.4
ENRGU2025-10-01 16:10:29.3300.01100.131.242025-10-01 16:10:31.9000.0671-0.051.8020.8
PZZGU2025-10-01 16:10:29.7700.01200.041.782025-10-01 16:10:32.9100.0691-0.061.7722.1
ISOFR2025-10-01 16:10:31.5500.01700.440.042025-10-01 16:10:35.1250.10330.041.6031.8
SURFFR2025-10-01 16:10:32.8800.0211-0.201.172025-10-01 16:10:38.3000.1283-0.470.7141.7
GBOSGU2025-10-01 16:10:33.3700.0231-0.071.802025-10-01 16:10:38.7640.1384-0.261.1145.4
TURFFR2025-10-01 16:10:34.0300.02410.061.712025-10-01 16:10:39.4010.1002-0.780.6246.7
SAOFFR2025-10-01 16:10:34.3400.0251-0.011.842025-10-01 16:10:40.0390.1715-0.720.6448.9
MLIGIV2025-10-01 16:10:33.1980.0200-2.040.012025-10-01 16:10:40.7960.0400-1.540.0753.6
MVIFFR2025-10-01 16:10:35.5990.0200-0.171.372025-10-01 16:10:42.2340.1725-1.140.3256.5
ESCAFR2025-10-01 16:10:36.5910.02000.011.752025-10-01 16:10:44.1100.1905-0.430.8962.4
ROROGU2025-10-01 16:10:37.3250.02000.141.292025-10-01 16:10:45.0700.2056-0.341.0167.5
IMIGU2025-10-01 16:10:36.7440.0200-0.890.552025-10-01 16:10:45.6870.4769-0.740.6870.6
QLNOIV2025-10-01 16:10:40.8980.02001.000.002025-10-01 16:10:49.4800.4349-0.700.7182.5


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
STV GUHH0.588.79e-217.4177
ENR GUHH0.872.49e-120.8155
PZZ GUHH0.431.02e-122.1310
ISO FRHH0.191.74e-231.8223
TURF FRHH0.561.90e-246.7172
ESCA FRHH1.002.88e-262.4176
RORO GUHH0.851.74e-267.5117
IMI GUHH0.821.95e-270.6139
QLNO IVHH0.841.08e-282.595


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 GUHHZ1.5088e-51.4348e-62.7291e-79.4262e-85.6304e-87.7273e-61.4171e-69.8978e-82.7465e-817.4177
STV GUHHN8.2045e-69.0637e-72.7995e-79.0341e-84.9873e-81.4297e-51.0993e-69.6146e-82.0932e-817.4177
STV GUHHE2.0057e-52.2679e-66.0936e-71.5165e-79.4179e-84.1149e-52.2392e-61.6888e-74.3601e-817.4177
ENR GUHHZ4.1141e-54.0286e-68.8559e-73.1980e-71.9395e-75.6409e-53.8720e-63.7318e-77.9173e-820.8155
ENR GUHHN1.2217e-49.8263e-61.1330e-63.7994e-72.4619e-78.8432e-54.4400e-65.8282e-71.6455e-720.8155
ENR GUHHE1.3542e-41.1249e-51.0009e-62.9817e-71.8965e-74.5601e-55.1234e-66.1892e-71.8156e-720.8155
PZZ GUHHZ7.9894e-61.1463e-66.1367e-71.6905e-78.4479e-81.9691e-53.3578e-61.3635e-72.5880e-822.1310
PZZ GUHHN1.2178e-51.7865e-69.3674e-72.6323e-71.2917e-72.4770e-54.1966e-62.1457e-73.9503e-822.1310
PZZ GUHHE8.7176e-61.6086e-66.1199e-71.1816e-77.5781e-81.8354e-52.5865e-61.2568e-73.1452e-822.1310
ISO FRHHZ2.5040e-62.9072e-71.5569e-75.8033e-83.4731e-83.8820e-69.3617e-75.3286e-88.4827e-931.8223
ISO FRHHN3.2752e-63.3381e-79.8214e-82.3945e-81.3440e-83.0093e-63.8688e-72.9974e-86.1447e-931.8223
ISO FRHHE3.2313e-64.3455e-71.1835e-73.5031e-81.9964e-85.2253e-64.4656e-73.7173e-89.4048e-931.8223
GBOS GUHHZ4.2351e-67.9095e-73.6136e-71.1622e-75.7014e-88.0371e-61.4430e-69.0197e-81.5702e-845.4111
GBOS GUHHN3.1314e-65.8681e-73.3460e-71.1324e-74.6248e-87.9984e-61.1677e-67.0840e-81.2262e-845.4111
GBOS GUHHE2.3845e-65.2637e-72.9405e-71.0382e-74.9948e-88.2308e-61.5500e-67.2719e-81.2130e-845.4111
TURF FRHHZ1.3994e-62.6486e-71.4044e-74.7887e-86.7323e-85.4928e-64.7927e-71.5020e-71.3922e-846.7172
TURF FRHHN2.1652e-63.5113e-71.8424e-74.0938e-82.6523e-87.3766e-68.0178e-74.1506e-87.8932e-946.7172
TURF FRHHE1.3436e-62.3791e-71.4974e-76.0727e-83.4245e-84.9438e-67.5280e-74.9600e-85.7595e-946.7172
SAOF FRHHZ5.7832e-71.0631e-77.2968e-82.5010e-82.0100e-81.6977e-65.2220e-72.7257e-82.9177e-948.9157
SAOF FRHHN5.6619e-78.9235e-85.1568e-82.4017e-81.5155e-81.6207e-62.2730e-71.7844e-82.3142e-948.9157
SAOF FRHHE7.4552e-71.2759e-78.3896e-83.6640e-82.5200e-81.8709e-65.6812e-74.1480e-83.7045e-948.9157
ESCA FRHHZ1.0993e-61.9074e-71.0630e-72.7925e-81.9475e-83.0064e-66.8176e-73.2158e-84.3324e-962.4176
ESCA FRHHN2.8148e-64.5728e-71.4612e-74.8132e-82.5952e-87.1151e-65.8421e-74.0997e-89.9511e-962.4176
ESCA FRHHE2.0349e-64.0795e-72.4029e-77.8573e-84.7072e-85.7448e-61.6955e-67.4089e-81.1315e-862.4176
RORO GUHHZ1.7071e-62.5236e-71.1839e-73.6166e-82.0175e-84.8109e-64.9943e-73.5375e-85.9320e-967.5117
RORO GUHHN1.6623e-63.2675e-71.6514e-73.8916e-82.3174e-83.8566e-68.4326e-73.5767e-87.9572e-967.5117
RORO GUHHE1.3835e-62.1575e-71.0687e-72.9916e-81.6797e-84.3754e-63.7408e-72.5272e-84.5236e-967.5117
IMI GUHHZ9.7297e-71.3345e-76.3477e-83.3762e-82.6351e-81.9628e-63.7549e-72.9296e-83.0524e-970.6139
IMI GUHHN3.7335e-64.0993e-71.4487e-77.2844e-83.4946e-83.8683e-65.1332e-74.1479e-88.2992e-970.6139
IMI GUHHE1.7172e-62.3384e-71.1639e-74.3606e-82.2746e-84.1076e-64.3892e-72.6984e-85.8938e-970.6139
QLNO IVHHZ5.1589e-77.5727e-85.2299e-82.9505e-81.9700e-81.7742e-62.9698e-72.3149e-82.4997e-982.595
QLNO IVHHN1.6002e-61.7422e-76.6793e-84.9585e-83.1021e-82.6420e-62.7353e-73.3751e-83.5812e-982.595
QLNO IVHHE1.4902e-61.8052e-78.8312e-83.3969e-82.3271e-82.9743e-64.9378e-73.3239e-83.6617e-982.595
*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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