MANUAL Location - Area: Alpi Cozie , magnitude (ML): 1.2
2026-04-18 05:44:44 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2026-04-20 07:09:17

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Earthquake info - Manual location
Event - ID :260418054420
Magnitude (ML) :1.2 +/- 0.2
Origin Time :2026-04-18 05:44:44.675 (UTC)
Location : Latitude: 44.578 N, Longitude: 6.678 E
Area :Alpi Cozie
Depth (km) :10.79
Distances (km) : 26.8 --- Bellino
27.2 --- Acceglio
28.1 --- Pontechianale
28.8 --- Argentera
31.0 --- Casteldelfino
31.6 --- Prazzo
32.8 --- Elva
34.8 --- Canosio
35.5 --- Marmora
36.4 --- Stroppo
38.3 --- Pietraporzio
40.3 --- Crissolo
40.5 --- Sampeyre
40.6 --- Macra
40.6 --- Claviere
41.1 --- Celle di Macra
41.2 --- Sambuco
42.0 --- Oncino
42.4 --- Ostana
42.6 --- Cesana Torinese

Quality location estimate: Erh: 1 km, Erz: 1.6 km, Nf: 46, Gap: 120 °, Rms: 0.27


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.
SURFFR2026-04-18 05:44:48.5600.00800.001.362026-04-18 05:44:51.1100.0491-0.320.9218.7
OGAGFR2026-04-18 05:44:50.2000.0130-0.041.292026-04-18 05:44:53.7900.0782-0.410.7728.4
PONCIV2026-04-18 05:44:50.9030.02000.361.122026-04-18 05:44:55.1110.04000.351.1230.6
PZZGU2026-04-18 05:44:51.9500.01800.021.362026-04-18 05:44:57.0700.1083-0.091.2137.6
RRLGU2026-04-18 05:44:52.7600.02510.091.322026-04-18 05:44:58.2900.1173-0.061.2441.2
VINDIV2026-04-18 05:44:53.8770.0200-0.270.982026-04-18 05:45:00.2780.0400-0.420.7550.6
ISOFR2026-04-18 05:44:54.9100.02710.261.252026-04-18 05:45:01.1400.1615-0.251.0154.1
BHBGU2026-04-18 05:44:55.2500.03210.251.252026-04-18 05:45:01.9800.1635-0.251.0055.5
FENEIV2026-04-18 05:44:56.0920.02000.351.122026-04-18 05:45:03.4520.0400-0.021.2659.7
OGDIFR2026-04-18 05:44:57.3390.02000.670.362026-04-18 05:45:05.0170.0400-0.181.1064.4
STVGU2026-04-18 05:44:56.5000.03210.331.152026-04-18 05:45:03.9480.2647-0.081.0964.4
OGMOFR2026-04-18 05:44:57.8600.02000.201.292026-04-18 05:45:06.6900.2096-0.171.0570.8
ENRGU2026-04-18 05:44:57.4600.03610.111.332026-04-18 05:45:06.8780.04000.850.2371.4
RSPGU2026-04-18 05:44:59.7600.03910.760.282026-04-18 05:45:09.0500.23560.071.1279.4
MVIFFR2026-04-18 05:45:00.4700.11550.151.282026-04-18 05:45:10.9180.5149-0.420.6785.4
TURFFR2026-04-18 05:45:00.9980.02000.400.982026-04-18 05:45:11.4570.0400-0.221.0288.6
SAOFFR2026-04-18 05:45:02.4100.04820.470.832026-04-18 05:45:13.3550.2937-0.490.6696.5
ESCAFR2026-04-18 05:45:03.0700.05020.361.042026-04-18 05:45:15.1520.3577-0.000.95100.5
MLIGIV2026-04-18 05:45:02.9530.0200-0.340.892026-04-18 05:45:15.6350.0400-0.540.59104.0
LSDGU2026-04-18 05:45:03.5070.02000.131.292026-04-18 05:45:16.2120.1303-0.131.05105.1
BIGNGU2026-04-18 05:45:05.2500.05820.321.092026-04-18 05:45:18.5050.5629-0.360.67116.0
IMIGU2026-04-18 05:45:06.2100.06130.470.822026-04-18 05:45:20.2530.0400-0.280.90122.5
CIROGU2026-04-18 05:45:08.1990.08030.131.222026-04-18 05:45:24.0340.0400-0.410.74134.2


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.		 Dist. (km) Azimuth
OGAG FRHH1.011.43e-128.4335
PONC IVHH0.961.08e-130.679
PZZ GUHH1.131.83e-137.6103
RRL GUHH1.268.29e-241.213
ISO FRHH0.701.94e-254.1146
BHB GUHH1.104.28e-255.558
FENE IVHH1.043.46e-259.731
STV GUHH0.981.75e-264.4125
ENR GUHH1.387.09e-271.4123
RSP GUHH1.142.52e-279.436
TURF FRHH1.011.37e-288.6139
SAOF FRHH1.061.26e-296.5133
ESCA FRHH1.191.52e-2100.5146
LSD GUHH1.452.48e-2105.120
BIGN GUEH1.462.01e-2116.0133
IMI GUHH1.653.64e-2122.5127
CIRO GUHH1.579.46e-3134.231


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.
(°)
OGAG FRHHZ6.2277e-61.5272e-61.2191e-66.6792e-72.9666e-71.6684e-55.8844e-64.0084e-74.5043e-828.4335
OGAG FRHHN4.4795e-61.4209e-69.6834e-74.0987e-71.4078e-71.2900e-55.5338e-62.0140e-73.5803e-828.4335
OGAG FRHHE5.9739e-61.5793e-61.1148e-65.0234e-72.6623e-71.5397e-58.0470e-62.8750e-73.7810e-828.4335
PONC IVHHZ1.3796e-51.4622e-67.3944e-72.2509e-71.1055e-72.1853e-52.8379e-61.5084e-72.9710e-830.679
PONC IVHHN1.0253e-51.2662e-66.8094e-72.9756e-71.7229e-72.1538e-53.5187e-62.3525e-73.7415e-830.679
PONC IVHHE9.5906e-61.4035e-68.8806e-74.0199e-71.3016e-73.0261e-53.3374e-61.8746e-73.5017e-830.679
PZZ GUHHZ1.2648e-52.3065e-61.4939e-65.5469e-72.8174e-73.0743e-51.0933e-53.9709e-75.1514e-837.6103
PZZ GUHHN1.5306e-53.0627e-62.1124e-66.1201e-72.7057e-74.1163e-58.7456e-63.7439e-76.7814e-837.6103
PZZ GUHHE1.2092e-52.0714e-62.0324e-67.7778e-73.4220e-72.8619e-51.2680e-54.2731e-75.4025e-837.6103
RRL GUHHZ3.9128e-65.9653e-72.9795e-71.5631e-78.8786e-88.7705e-61.5126e-61.2831e-71.3943e-841.213
RRL GUHHN5.1220e-68.5686e-76.0723e-71.8485e-79.1566e-81.3054e-53.0033e-61.4131e-72.4085e-841.213
RRL GUHHE4.6032e-61.0615e-66.7437e-73.0012e-71.0256e-71.4450e-52.5853e-61.4860e-72.3598e-841.213
ISO FRHHZ2.9064e-64.3838e-71.7590e-74.6054e-82.3625e-87.1788e-66.3279e-74.2641e-89.5633e-954.1146
ISO FRHHN2.5764e-64.1195e-72.0408e-76.5550e-83.4155e-86.9766e-67.0545e-75.1297e-87.4191e-954.1146
ISO FRHHE3.4578e-64.6162e-72.0237e-78.2375e-83.5470e-87.5429e-68.2468e-75.2109e-87.6727e-954.1146
BHB GUHHZ4.6498e-66.2934e-73.6397e-71.1184e-76.1561e-81.5255e-51.4741e-61.0199e-71.4289e-855.558
BHB GUHHN2.9559e-66.2579e-74.5629e-71.2393e-76.1343e-89.3980e-62.2255e-68.3422e-81.4018e-855.558
BHB GUHHE3.7439e-65.1138e-72.7150e-79.1944e-84.3133e-89.7212e-61.4817e-67.2329e-81.1460e-855.558
FENE IVHHZ4.1651e-66.4781e-72.9391e-71.2491e-75.0363e-81.1224e-51.1638e-67.9095e-81.4346e-859.731
FENE IVHHN4.0349e-66.4867e-73.5017e-71.0418e-74.9532e-81.1046e-51.4078e-67.5899e-81.4686e-859.731
FENE IVHHE3.3896e-64.8091e-72.3641e-78.2409e-83.9829e-86.4534e-68.3380e-76.5903e-81.2828e-859.731
STV GUHHZ3.1444e-63.9049e-72.5190e-76.7237e-82.8903e-85.1103e-61.1387e-64.3673e-88.3191e-964.4125
STV GUHHN2.3882e-63.5472e-71.7917e-75.5719e-82.7397e-86.0395e-66.0197e-73.7720e-86.4080e-964.4125
STV GUHHE2.3871e-63.2947e-72.0468e-75.1797e-82.8762e-87.4807e-67.2525e-73.8603e-87.1747e-964.4125
ENR GUHHZ6.4834e-67.2680e-72.5816e-79.7996e-84.3115e-81.1216e-51.1997e-67.6200e-81.6788e-871.4123
ENR GUHHN2.1102e-51.8808e-65.6845e-71.7058e-78.0073e-82.7611e-52.7159e-61.3104e-73.1830e-871.4123
ENR GUHHE2.4851e-52.1649e-65.1981e-71.4388e-77.5446e-81.8975e-51.5352e-61.5519e-74.0183e-871.4123
RSP GUHHZ1.4814e-62.7344e-71.8758e-78.7871e-83.3366e-84.8478e-69.8013e-74.6337e-86.3914e-979.436
RSP GUHHN2.2095e-63.5861e-72.4712e-71.0683e-74.5704e-86.2377e-67.5847e-76.7698e-89.3339e-979.436
RSP GUHHE2.2686e-63.1912e-72.2899e-75.9685e-82.7516e-87.5629e-68.7187e-74.1846e-88.2371e-979.436
TURF FRHHZ1.0296e-61.2839e-79.2061e-83.6323e-81.3150e-82.1720e-64.7610e-71.8095e-82.6618e-988.6139
TURF FRHHN9.3493e-71.7786e-71.2964e-74.1575e-81.7857e-82.6370e-65.7549e-72.6597e-84.4205e-988.6139
TURF FRHHE5.2830e-79.8885e-81.1481e-77.1128e-82.1461e-81.9822e-68.1344e-72.9885e-83.6313e-988.6139
SAOF FRHHZ8.3049e-71.9938e-71.6776e-77.6163e-84.0783e-81.6107e-61.5008e-65.3909e-85.7219e-996.5133
SAOF FRHHN5.6761e-71.3938e-71.1281e-76.0808e-82.4404e-81.4579e-66.2208e-72.9998e-83.6718e-996.5133
SAOF FRHHE7.0309e-71.4362e-71.1918e-75.0216e-82.2511e-81.8061e-69.0744e-73.0110e-84.0267e-996.5133
ESCA FRHHZ1.9653e-62.4618e-71.0274e-73.1306e-81.3772e-82.4399e-63.8815e-72.4842e-85.4715e-9100.5146
ESCA FRHHN1.4479e-62.3900e-71.4444e-75.2950e-81.9190e-83.0205e-64.6405e-72.7606e-85.2764e-9100.5146
ESCA FRHHE1.5651e-62.3695e-71.5637e-75.5609e-82.1233e-83.6900e-66.5057e-73.0633e-86.2406e-9100.5146
LSD GUHHZ8.8004e-71.8961e-71.2969e-74.3189e-81.9345e-82.2738e-66.5435e-72.6571e-84.2936e-9105.120
LSD GUHHN9.3107e-71.6142e-71.2076e-74.2169e-81.5933e-83.2838e-66.8692e-72.3539e-83.8508e-9105.120
LSD GUHHE1.4999e-62.9484e-72.2314e-76.4959e-82.9768e-84.6234e-61.0471e-64.4979e-87.2015e-9105.120
BIGN GUEHZ1.8020e-63.3636e-71.0608e-73.6373e-81.7935e-83.2457e-63.9184e-72.3697e-85.1527e-9116.0133
BIGN GUEHN2.1112e-63.0141e-71.5532e-76.5232e-82.5483e-84.5135e-65.1109e-73.4454e-85.5911e-9116.0133
BIGN GUEHE2.3442e-63.0835e-71.2213e-74.5598e-82.2095e-83.6648e-65.3196e-73.2919e-86.5283e-9116.0133
IMI GUHHZ1.2102e-62.8346e-71.4646e-76.0007e-83.0179e-82.9795e-67.0512e-74.6829e-87.5082e-9122.5127
IMI GUHHN1.9475e-62.7747e-71.8442e-76.3980e-82.8890e-84.0677e-68.0699e-74.7799e-88.2446e-9122.5127
IMI GUHHE1.0396e-62.1251e-71.3423e-75.3030e-81.9974e-83.0039e-66.5344e-72.7768e-84.5515e-9122.5127
CIRO GUHHZ3.4320e-77.5216e-84.7750e-82.6171e-81.4191e-81.1053e-62.4077e-72.1294e-82.1748e-9134.231
CIRO GUHHN3.3906e-76.4361e-84.7934e-82.1244e-89.9645e-91.1607e-62.9210e-71.1429e-81.6704e-9134.231
CIRO GUHHE4.0405e-71.0103e-77.5464e-83.6671e-81.6712e-81.0088e-65.2961e-72.3715e-82.5089e-9134.231
*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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