MANUAL Location - Area: Alpi Cozie , magnitude (ML): 0.9
2026-09-18 02:01:01 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2026-09-18 08:33:36

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Earthquake info - Manual location
Event - ID :260918020036
Magnitude (ML) :0.9 +/- 0.2
Origin Time :2026-09-18 02:01:01.772 (UTC)
Location : Latitude: 44.523 N, Longitude: 7.230 E
Area :Alpi Cozie
Depth (km) :17.02
Distances (km) : 4.2 --- San Damiano Macra
4.7 --- Macra
5.9 --- Celle di Macra
6.6 --- Frassino
6.7 --- Cartignano
7.0 --- Sampeyre
8.4 --- Stroppo
8.4 --- Melle
9.5 --- Valmala
10.2 --- Roccabruna
11.3 --- Elva
11.7 --- Brossasco
12.1 --- Pradleves
12.2 --- Dronero
12.6 --- Castelmagno
12.7 --- Villar San Costanzo
12.9 --- Marmora
13.8 --- Canosio
13.9 --- Venasca
14.0 --- Isasca

Quality location estimate: Erh: 0.9 km, Erz: 0.4 km, Nf: 44, Gap: 84 °, Rms: 0.31


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.
PZZGU2026-09-18 02:01:05.4600.0130-0.101.632026-09-18 02:01:07.5300.0431-0.750.7520.6
PONCIV2026-09-18 02:01:06.7560.02000.051.672026-09-18 02:01:09.7630.0400-0.470.7027.4
VINDIV2026-09-18 02:01:07.1650.02000.011.872026-09-18 02:01:10.1840.0400-0.770.7329.5
STVGU2026-09-18 02:01:08.2500.02110.071.562026-09-18 02:01:12.3000.0972-0.390.8436.5
BHBGU2026-09-18 02:01:08.5200.0221-0.011.862026-09-18 02:01:12.4800.1053-0.740.7339.0
ENRGU2026-09-18 02:01:08.7370.0200-0.031.852026-09-18 02:01:13.1470.2016-0.550.8340.2
ISOFR2026-09-18 02:01:10.1450.02000.500.252026-09-18 02:01:15.0700.12830.021.3744.1
RRLGU2026-09-18 02:01:12.2370.0200-0.081.652026-09-18 02:01:19.0900.2456-0.640.7959.5
GBOSGU2026-09-18 02:01:11.9760.0200-0.091.652026-09-18 02:01:18.2600.2006-1.100.4060.4
FENEIV2026-09-18 02:01:12.5170.02000.011.662026-09-18 02:01:19.6510.0400-0.321.0360.7
TURFFR2026-09-18 02:01:13.3680.02000.071.462026-09-18 02:01:20.7480.0400-0.820.6664.5
OGAGFR2026-09-18 02:01:13.1770.0200-0.151.402026-09-18 02:01:21.1490.2617-0.371.0164.7
SAOFFR2026-09-18 02:01:13.5040.0200-0.151.402026-09-18 02:01:20.9940.0400-1.140.3567.2
MLIGIV2026-09-18 02:01:13.8300.0200-0.610.762026-09-18 02:01:21.9450.0400-1.630.0871.6
MGROGU2026-09-18 02:01:14.1700.0401-0.261.072026-09-18 02:01:22.7050.4008-0.840.6572.9
ESCAFR2026-09-18 02:01:15.8270.02000.071.382026-09-18 02:01:25.1300.2607-0.590.8479.7
ROROGU2026-09-18 02:01:15.9730.02000.380.422026-09-18 02:01:24.7700.3648-0.740.7282.5
IMIGU2026-09-18 02:01:16.4590.0200-0.101.482026-09-18 02:01:26.6500.3107-0.720.7488.0
QLNOIV2026-09-18 02:01:17.4540.0200-0.051.502026-09-18 02:01:28.2100.3377-0.800.6893.0
PCPGU2026-09-18 02:01:19.4700.05820.330.592026-09-18 02:01:31.9400.32470.210.81105.7
LSDGU2026-09-18 02:01:20.0600.02000.740.122026-09-18 02:01:31.9900.38780.320.69106.2


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
PZZ GUHH0.873.18e-120.6259
PONC IVHH1.011.50e-127.4306
BHB GUHH0.683.26e-239.04
ISO FRHH0.682.81e-244.1201
RRL GUHH0.821.43e-259.5322
FENE IVHH0.711.57e-260.7347
TURF FRHH0.651.21e-264.5168
OGAG FRHH1.083.24e-264.7299
SAOF FRHH0.517.95e-367.2156
MGRO GUHH0.821.35e-272.9139
ESCA FRHH0.821.12e-279.7171
RORO GUHH0.951.38e-282.5124
IMI GUHH1.162.61e-288.0142
QLNO IVHH1.312.42e-293.0104
PCP GUHH1.101.20e-2105.788
LSD GUHH1.008.64e-3106.2356


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 GUHHZ4.6744e-54.9215e-62.5290e-67.9662e-73.4626e-77.5158e-51.0350e-55.6527e-71.0067e-720.6259
PZZ GUHHN5.4377e-57.1785e-62.8738e-68.4529e-73.8726e-71.3115e-41.2213e-56.0594e-71.4935e-720.6259
PZZ GUHHE4.3745e-55.7021e-62.5656e-67.7126e-73.9666e-77.7513e-51.1970e-56.3315e-71.1168e-720.6259
PONC IVHHZ5.0664e-54.6544e-61.2459e-64.5670e-72.3108e-74.2286e-55.5288e-64.2957e-79.6780e-827.4306
PONC IVHHN4.0449e-55.2917e-61.1106e-62.7788e-71.5833e-77.3252e-54.6946e-63.2672e-79.0434e-827.4306
PONC IVHHE2.6941e-52.4746e-68.4405e-72.7733e-71.5560e-72.2021e-54.2207e-62.6272e-75.1332e-827.4306
STV GUHHZ1.4558e-52.3221e-69.8292e-73.7727e-71.9007e-72.3096e-54.2768e-63.1885e-75.7538e-836.5166
STV GUHHN1.8398e-51.8064e-68.9785e-72.9290e-71.5329e-72.0772e-53.9419e-62.4973e-74.8102e-836.5166
STV GUHHE2.4497e-54.1773e-61.4540e-63.6943e-72.0733e-75.0747e-54.7985e-63.5564e-77.6997e-836.5166
BHB GUHHZ7.0455e-67.5094e-72.7406e-76.0794e-84.5360e-82.1503e-51.0572e-69.1310e-81.6190e-839.04
BHB GUHHN6.0122e-66.7261e-72.4105e-75.6280e-84.2752e-81.1048e-59.9216e-77.9004e-81.5071e-839.04
BHB GUHHE9.4895e-69.5186e-72.2572e-77.0811e-83.6885e-81.4737e-58.7088e-77.3141e-81.8329e-839.04
ENR GUHHZ3.3180e-54.0130e-61.2352e-64.2668e-72.1950e-75.8891e-54.1309e-63.3818e-77.9097e-840.2155
ENR GUHHN8.4189e-58.5693e-61.9449e-66.9692e-73.3427e-71.2474e-47.0995e-66.8715e-71.7275e-740.2155
ENR GUHHE9.8756e-58.6625e-61.9702e-64.9031e-72.5277e-71.2475e-45.5566e-65.7190e-71.6501e-740.2155
ISO FRHHZ3.2904e-63.6961e-71.2607e-73.2236e-81.8021e-88.0572e-65.0488e-73.2632e-87.8403e-944.1201
ISO FRHHN4.7759e-65.1405e-71.1439e-73.1480e-82.1367e-86.5737e-63.8255e-74.5919e-89.5233e-944.1201
ISO FRHHE4.3554e-65.3667e-72.0789e-75.3039e-83.0689e-89.0266e-68.5599e-74.5875e-81.1350e-844.1201
RRL GUHHZ1.3045e-61.5585e-76.5277e-83.1349e-81.6269e-82.9504e-63.3990e-72.4703e-83.5835e-959.5322
RRL GUHHN1.4845e-62.2733e-71.3780e-74.4436e-81.8352e-85.4420e-65.9535e-72.7703e-85.4113e-959.5322
RRL GUHHE1.3520e-62.3954e-71.3124e-74.1024e-82.0315e-85.2074e-65.9348e-73.4662e-85.4361e-959.5322
GBOS GUHHZ5.4725e-69.8972e-75.1916e-71.3125e-76.9519e-82.2150e-52.1098e-61.1313e-72.6759e-860.4123
GBOS GUHHN4.6328e-66.3915e-74.2291e-71.4260e-77.0643e-81.4604e-51.5539e-69.6032e-81.5302e-860.4123
GBOS GUHHE4.9686e-66.9521e-73.9777e-71.3068e-76.0792e-81.7653e-52.2508e-69.2678e-81.7403e-860.4123
FENE IVHHZ2.8708e-63.4341e-71.5290e-74.2818e-82.1668e-88.1565e-66.9369e-73.4095e-86.5648e-960.7347
FENE IVHHN3.5966e-64.2306e-71.2278e-73.1237e-81.7761e-85.9307e-64.7692e-73.2190e-88.0930e-960.7347
FENE IVHHE2.7690e-63.2392e-71.3179e-73.7838e-81.7474e-86.4524e-65.2197e-73.2164e-86.7902e-960.7347
TURF FRHHZ9.8913e-71.2149e-77.2441e-82.9063e-81.7601e-81.9846e-62.4682e-72.1406e-82.9594e-964.5168
TURF FRHHN1.1654e-61.7858e-71.0659e-73.2262e-81.8223e-83.1517e-63.8848e-72.9068e-84.9157e-964.5168
TURF FRHHE1.2304e-61.4933e-79.6265e-84.3662e-82.3431e-82.4480e-64.6874e-73.4112e-84.0061e-964.5168
OGAG FRHHZ5.2963e-71.6307e-71.1701e-79.9974e-85.5274e-81.6942e-68.8470e-76.1577e-85.2566e-964.7299
OGAG FRHHN8.5517e-71.6048e-71.4112e-78.0100e-82.8784e-82.8961e-66.7104e-73.8133e-85.2774e-964.7299
OGAG FRHHE6.4925e-72.3688e-72.3978e-71.7580e-76.0337e-81.3631e-61.3092e-66.7515e-87.7148e-964.7299
SAOF FRHHZ5.6109e-79.6508e-86.0696e-82.6099e-81.6307e-81.9517e-63.1462e-72.2320e-82.4067e-967.2156
SAOF FRHHN6.7680e-71.0602e-77.2793e-82.5264e-81.8869e-81.8508e-62.6907e-72.3531e-82.9529e-967.2156
SAOF FRHHE6.9733e-71.4134e-77.8400e-82.8939e-82.2887e-82.2775e-64.5520e-73.4567e-82.8151e-967.2156
MGRO GUHHZ5.6498e-71.0411e-76.3119e-84.5548e-82.6135e-81.3750e-63.2531e-73.4232e-84.2423e-972.9139
MGRO GUHHN1.1230e-61.8837e-71.0710e-75.4945e-82.7152e-82.7493e-63.5695e-73.1496e-84.4446e-972.9139
MGRO GUHHE8.5982e-71.5569e-78.6582e-84.5245e-82.1007e-82.1158e-64.4355e-72.7167e-85.1393e-972.9139
ESCA FRHHZ1.0491e-61.4002e-77.6343e-82.6754e-81.6827e-81.7372e-62.7218e-72.9213e-83.1012e-979.7171
ESCA FRHHN1.5464e-62.1969e-79.4271e-83.5505e-82.4666e-84.8013e-63.0358e-73.4906e-85.3697e-979.7171
ESCA FRHHE1.3314e-62.1354e-71.1913e-73.3122e-82.1664e-83.0261e-65.2915e-72.7969e-84.4031e-979.7171
RORO GUHHZ1.6092e-62.5423e-71.2124e-74.9539e-82.0287e-84.5470e-66.0018e-73.2332e-86.5506e-982.5124
RORO GUHHN1.6882e-62.5649e-71.2398e-73.2981e-82.0003e-84.4502e-65.7291e-73.7878e-85.6371e-982.5124
RORO GUHHE2.2432e-63.6372e-71.3039e-73.5937e-81.9254e-86.2429e-67.9770e-73.5431e-87.2795e-982.5124
IMI GUHHZ1.3179e-61.9332e-77.6910e-83.2249e-82.2153e-83.0435e-64.1006e-72.7042e-85.3755e-988.0142
IMI GUHHN5.8464e-65.5844e-71.7821e-75.9470e-82.9658e-88.4671e-68.7422e-74.8867e-81.4354e-888.0142
IMI GUHHE1.8890e-62.0956e-79.9945e-84.1282e-82.4353e-84.1804e-64.1173e-72.9924e-85.1443e-988.0142
QLNO IVHHZ7.9529e-71.1334e-76.3939e-83.0015e-82.1972e-82.3039e-62.3430e-73.2591e-84.2702e-993.0104
QLNO IVHHN2.1159e-63.2982e-71.2467e-77.4234e-89.1977e-83.5111e-63.6524e-71.4821e-71.6731e-893.0104
QLNO IVHHE1.7984e-62.9070e-71.1711e-75.1011e-82.9565e-84.1345e-63.7236e-74.2773e-87.5600e-993.0104
PCP GUHHZ5.7302e-71.3931e-71.0374e-75.6110e-82.8226e-81.8406e-66.2599e-73.1978e-83.9695e-9105.788
PCP GUHHN9.7007e-71.3262e-71.1210e-74.8432e-82.7151e-82.7597e-66.2474e-73.6584e-84.0566e-9105.788
PCP GUHHE9.3150e-71.5176e-71.1864e-73.3461e-82.5350e-82.7224e-68.3304e-73.5641e-84.2261e-9105.788
LSD GUHHZ7.1842e-78.3240e-85.3157e-81.2401e-87.1429e-91.1726e-62.1592e-71.1471e-81.8882e-9106.2356
LSD GUHHN8.7802e-71.1493e-77.2495e-81.8432e-88.9985e-91.7885e-65.5135e-71.4047e-82.5397e-9106.2356
LSD GUHHE1.2944e-61.6615e-78.2554e-82.2781e-81.1271e-82.0169e-64.4095e-71.8528e-83.1822e-9106.2356
*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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