MANUAL Location - Area: Langhe , magnitude (ML): 1.3
2025-04-03 01:54:28 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-04-03 07:36:15

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Earthquake info - Manual location
Event - ID :250403015404
Magnitude (ML) :1.3 +/- 0.2
Origin Time :2025-04-03 01:54:28.333 (UTC)
Location : Latitude: 44.729 N, Longitude: 8.127 E
Area :Langhe
Depth (km) :17.02
Distances (km) : 1.0 --- Neive
1.5 --- Coazzolo
3.5 --- Barbaresco
3.6 --- Castagnole delle Lanze
4.0 --- Neviglie
4.8 --- Mango
5.0 --- Castiglione Tinella
5.2 --- Treiso
5.8 --- Trezzo Tinella
6.3 --- Magliano Alfieri
6.4 --- Camo
7.4 --- Guarene
8.0 --- Costigliole d Asti
8.1 --- Calosso
8.1 --- Castagnito
8.4 --- Alba
8.5 --- Priocca
8.5 --- Santo Stefano Belbo
8.6 --- Cossano Belbo
8.8 --- Govone

Quality location estimate: Erh: 1.1 km, Erz: 1.1 km, Nf: 62, Gap: 75 °, Rms: 0.35


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.
ALBCIT2025-04-03 01:54:31.5920.0200-0.740.482025-04-03 01:54:33.8200.0400-1.490.2020.2
ROTMGU2025-04-03 01:54:33.9800.01300.041.602025-04-03 01:54:38.0800.08120.061.5428.2
ACQIT2025-04-03 01:54:34.0800.0200-0.221.372025-04-03 01:54:37.9520.0400-0.570.7032.0
PCPGU2025-04-03 01:54:35.8700.02610.021.652025-04-03 01:54:40.7600.1283-0.411.0142.9
MONCIV2025-04-03 01:54:36.8200.0211-1.150.342025-04-03 01:54:43.1360.0400-2.230.0145.0
QLNOIV2025-04-03 01:54:37.1130.0261-0.131.602025-04-03 01:54:43.3580.2867-0.181.2451.3
SVAIT2025-04-03 01:54:38.0800.0200-0.141.582025-04-03 01:54:44.3810.0400-0.920.4456.4
CANOGU2025-04-03 01:54:38.8800.03110.201.192025-04-03 01:54:46.3310.31170.400.8261.2
GBOSGU2025-04-03 01:54:38.8400.0311-0.490.802025-04-03 01:54:45.7550.2977-1.080.4461.4
FNLGIT2025-04-03 01:54:39.9970.02000.470.592025-04-03 01:54:47.6530.04000.201.2166.7
ROROGU2025-04-03 01:54:40.4300.04020.221.152025-04-03 01:54:48.3000.2116-0.221.2570.8
BHBGU2025-04-03 01:54:40.4400.0401-0.101.602025-04-03 01:54:48.6500.2316-0.570.8471.4
RNCAGU2025-04-03 01:54:40.7070.0200-0.091.612025-04-03 01:54:50.1660.04000.291.0373.3
PVTIT2025-04-03 01:54:42.1190.0200-0.041.612025-04-03 01:54:51.8290.0400-0.071.4280.1
ENRGU2025-04-03 01:54:42.1800.0402-0.131.542025-04-03 01:54:51.7420.2527-0.640.7881.0
MGROGU2025-04-03 01:54:42.4800.0412-0.460.882025-04-03 01:54:52.0550.2496-1.180.3982.5
LATOIV2025-04-03 01:54:42.9640.02000.360.832025-04-03 01:54:52.9960.0400-0.031.4084.1
RSPGU2025-04-03 01:54:42.1700.0412-0.331.142025-04-03 01:54:52.9650.40780.180.9884.3
STVGU2025-04-03 01:54:42.9500.04720.061.502025-04-03 01:54:52.6990.2527-0.740.6885.1
PZZGU2025-04-03 01:54:42.9860.02000.101.452025-04-03 01:54:53.2200.2527-0.141.2285.7
VINDIV2025-04-03 01:54:43.7470.02000.081.472025-04-03 01:54:53.4420.0400-1.370.2990.3
MLIGIV2025-04-03 01:54:44.1200.0200-0.391.022025-04-03 01:54:54.4130.0400-1.680.1691.1
IMIGU2025-04-03 01:54:44.5800.05220.101.422025-04-03 01:54:56.7450.04000.710.3494.5
SAOFFR2025-04-03 01:54:45.2400.04820.241.132025-04-03 01:54:56.3400.4449-0.680.7695.8
TURFFR2025-04-03 01:54:46.6200.05220.350.902025-04-03 01:54:58.7500.3868-0.600.83103.5
ISOFR2025-04-03 01:54:46.5790.02000.420.732025-04-03 01:54:58.6700.3417-0.381.00106.2
CIROGU2025-04-03 01:54:45.9810.0200-0.161.462025-04-03 01:54:58.3080.0400-0.520.90108.3
SURFFR2025-04-03 01:54:47.4280.02000.710.262025-04-03 01:54:58.9240.0400-1.150.40108.9
BURYGU2025-04-03 01:54:48.3500.05820.291.012025-04-03 01:55:02.0310.5579-0.280.89115.8


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.		 Dist. (km) Azimuth
ROTM GUHH1.218.62e-128.253
ACQ ITHN1.362.54e-132.0101
QLNO IVHH1.237.38e-251.3159
SVA ITHG1.296.90e-256.4150
GBOS GUHH1.434.13e-261.4203
FNLG ITHN1.661.15e-166.7164
RORO GUHH1.354.98e-270.8184
BHB GUHH1.273.70e-271.4280
PVT ITHN1.627.03e-280.1192
ENR GUHH1.951.99e-181.0226
MGRO GUHH1.414.00e-282.5199
STV GUHH1.503.14e-285.1230
PZZ GUHH1.032.63e-285.7253
IMI GUHH1.202.44e-294.5192
SAOF FRHH1.171.64e-295.8209
TURF FRHH1.211.48e-2103.5215
ISO FRHH1.018.74e-3106.2235
CIRO GUHH1.065.12e-3108.3336
BURY GUHH1.301.38e-2115.8204


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.
(°)
ALBC ITHNZ1.7926e-42.1909e-56.5876e-61.9643e-69.4758e-73.8556e-43.3020e-51.8077e-64.8332e-720.2242
ALBC ITHNN5.3141e-49.8332e-53.7404e-51.2669e-58.4791e-61.3487e-31.5185e-41.4285e-52.7382e-620.2242
ALBC ITHNE2.4426e-44.4502e-51.5993e-55.2463e-63.0792e-64.3528e-46.7173e-55.5212e-61.1234e-620.2242
ROTM GUHHZ3.6991e-54.0651e-61.8238e-66.4634e-72.4753e-75.6612e-59.6973e-63.8030e-76.8357e-828.253
ROTM GUHHN5.6934e-51.1055e-56.6882e-62.8370e-61.2451e-61.6003e-43.0562e-51.8346e-63.0053e-728.253
ROTM GUHHE6.1467e-58.7739e-64.1435e-61.7586e-68.5754e-71.3853e-42.2871e-51.3776e-61.9752e-728.253
ACQ ITHNZ2.1006e-52.4056e-68.1241e-73.6037e-71.7877e-73.9209e-53.4768e-62.8551e-75.0406e-832.0101
ACQ ITHNN3.7747e-54.1798e-62.1265e-66.2176e-73.3874e-77.6051e-59.7103e-64.5383e-71.1143e-732.0101
ACQ ITHNE3.6495e-54.5746e-62.4431e-65.9746e-73.4512e-78.3571e-56.9113e-65.9805e-71.0970e-732.0101
PCP GUHHZ9.2989e-68.7402e-73.6392e-71.0688e-74.8034e-81.4673e-51.8468e-69.3076e-81.8036e-842.9122
PCP GUHHN8.1898e-68.8845e-74.0355e-71.2719e-76.3525e-81.7479e-51.7947e-69.2550e-81.8809e-842.9122
PCP GUHHE1.1732e-51.1517e-64.2821e-79.9675e-85.6996e-81.4977e-52.4414e-61.0563e-72.0676e-842.9122
MONC IVHHZ1.0285e-51.7296e-69.6954e-73.1135e-71.2274e-72.9148e-54.5068e-61.8908e-73.3883e-845.0338
MONC IVHHN6.7552e-61.2036e-61.1066e-64.4317e-71.6272e-72.4933e-55.7009e-62.3541e-73.0049e-845.0338
MONC IVHHE7.0170e-61.1375e-61.1028e-65.2948e-71.6475e-72.3239e-55.3305e-62.0069e-72.7555e-845.0338
QLNO IVHHZ7.3746e-67.9130e-74.0300e-71.1932e-75.9165e-81.1818e-51.9005e-69.5254e-81.8818e-851.3159
QLNO IVHHN1.6012e-51.8420e-66.0970e-71.8696e-78.8040e-81.8396e-52.3996e-61.6013e-73.1840e-851.3159
QLNO IVHHE1.3977e-51.3790e-65.5800e-71.4678e-77.4077e-82.0845e-51.6282e-61.2824e-73.1552e-851.3159
SVA ITHGZ8.3524e-69.2244e-74.5425e-72.9509e-71.5773e-71.0684e-52.0059e-62.1769e-71.8470e-856.4150
SVA ITHGN7.2994e-61.0657e-66.0261e-73.6896e-71.9644e-71.9041e-52.2828e-62.4957e-72.2428e-856.4150
SVA ITHGE9.0370e-61.0697e-65.9063e-73.1926e-72.2814e-72.4706e-52.5248e-63.3227e-72.3539e-856.4150
CANO GUHHZ8.5143e-69.7676e-75.2675e-71.6661e-78.4666e-81.6301e-53.2238e-61.1559e-72.2009e-861.2171
CANO GUHHN1.4264e-53.3304e-62.0250e-65.6954e-72.8247e-74.1634e-51.4277e-54.0079e-76.7512e-861.2171
CANO GUHHE7.7017e-61.3745e-61.0248e-62.8540e-71.7924e-73.1034e-56.7950e-62.7851e-73.6233e-861.2171
GBOS GUHHZ3.2381e-64.0650e-72.2193e-78.4207e-83.2970e-88.5065e-61.2138e-65.1161e-89.8757e-961.4203
GBOS GUHHN4.4223e-66.1522e-73.2127e-71.2792e-75.1237e-81.6487e-51.9901e-68.4528e-81.6365e-861.4203
GBOS GUHHE3.2635e-64.8833e-72.6233e-78.0113e-83.4188e-87.8172e-69.8063e-75.7756e-81.0381e-861.4203
FNLG ITHNZ1.5896e-51.5368e-64.3878e-73.6725e-72.0762e-71.3039e-52.5045e-62.7768e-73.3840e-866.7164
FNLG ITHNN1.6765e-52.1423e-61.0235e-64.2070e-71.7898e-74.0041e-53.9627e-62.5777e-74.5821e-866.7164
FNLG ITHNE1.8477e-52.6050e-61.1070e-64.1644e-72.2784e-75.3842e-54.9647e-63.0756e-75.8846e-866.7164
RORO GUHHZ6.7120e-66.4421e-73.0257e-77.6138e-83.7698e-81.0569e-51.2010e-66.5828e-81.5511e-870.8184
RORO GUHHN7.9133e-68.6776e-73.5755e-78.4205e-84.9263e-81.2191e-51.2797e-67.8337e-81.9123e-870.8184
RORO GUHHE6.0090e-68.7130e-73.7852e-71.2559e-75.9211e-81.2770e-51.6550e-69.2555e-81.9875e-870.8184
BHB GUHHZ3.0003e-64.7365e-72.3991e-79.2808e-84.7549e-81.1280e-56.7594e-78.5205e-81.3840e-871.4280
BHB GUHHN3.8561e-65.6769e-72.9045e-78.1221e-83.4242e-89.7709e-61.0025e-65.7701e-81.1231e-871.4280
BHB GUHHE4.2957e-66.7068e-73.7966e-79.7069e-84.7495e-81.4842e-51.6467e-67.0652e-81.3894e-871.4280
RNCA GUHHZ9.0600e-71.3662e-78.4980e-84.9734e-82.1793e-81.8289e-63.7140e-73.3726e-84.0176e-973.3113
RNCA GUHHN5.9542e-71.6071e-71.2060e-75.7281e-82.9605e-81.9501e-66.8138e-74.8135e-84.4174e-973.3113
RNCA GUHHE8.2220e-71.3106e-71.1896e-75.3004e-82.8082e-82.1675e-66.2724e-73.5157e-83.9939e-973.3113
PVT ITHNZ1.1734e-51.2022e-63.9044e-73.0240e-71.3091e-71.2155e-52.1042e-61.4887e-71.9068e-880.1192
PVT ITHNN1.2512e-51.1303e-64.2843e-73.1150e-71.5455e-71.3502e-51.7632e-62.4266e-72.4407e-880.1192
PVT ITHNE1.3258e-51.6507e-64.9618e-73.1239e-71.5666e-72.2522e-52.4485e-62.1237e-73.7943e-880.1192
ENR GUHHZ1.5382e-51.4094e-65.5849e-71.3629e-78.5858e-83.3124e-51.9400e-61.3252e-72.9550e-881.0226
ENR GUHHN4.3373e-54.2074e-61.3435e-63.1534e-71.6752e-76.2017e-55.4796e-63.2543e-78.3290e-881.0226
ENR GUHHE6.3882e-56.7494e-61.3117e-63.4469e-71.9692e-79.5443e-55.6398e-64.5004e-71.1780e-781.0226
MGRO GUHHZ1.8124e-62.3394e-71.7373e-77.2208e-83.3916e-84.0100e-61.0608e-63.7344e-85.1171e-982.5199
MGRO GUHHN1.9840e-63.9871e-73.1539e-71.1193e-75.7541e-85.1271e-61.7839e-69.1589e-81.3147e-882.5199
MGRO GUHHE2.1346e-64.3913e-73.4649e-71.4279e-77.7980e-88.4268e-61.5109e-68.1035e-81.3677e-882.5199
RSP GUHHZ3.1056e-75.3441e-84.4665e-81.5359e-87.1172e-99.4629e-72.7999e-71.0811e-81.5728e-984.3305
RSP GUHHN5.4559e-71.3322e-71.0531e-73.5728e-81.6379e-81.9683e-65.3748e-72.5397e-83.6866e-984.3305
RSP GUHHE5.0173e-71.0389e-78.1887e-81.9688e-89.5113e-91.9192e-63.8132e-71.4726e-82.4175e-984.3305
STV GUHHZ2.6073e-63.4386e-71.7393e-75.8597e-83.6977e-86.8913e-68.3933e-75.6942e-89.9587e-985.1230
STV GUHHN3.3832e-66.0899e-72.6178e-78.2660e-84.1249e-81.0381e-59.7281e-77.5237e-81.2521e-885.1230
STV GUHHE4.1885e-65.2481e-72.6644e-77.8188e-83.4670e-81.0413e-51.0683e-65.8199e-81.1506e-885.1230
PZZ GUHHZ1.4965e-63.1090e-72.0858e-76.6492e-82.7396e-85.6329e-68.9493e-73.7488e-86.0303e-985.7253
PZZ GUHHN1.7819e-63.7257e-72.3923e-71.0441e-74.9327e-83.9613e-61.1722e-65.9179e-87.8377e-985.7253
PZZ GUHHE1.3773e-63.0660e-72.0693e-77.8171e-83.2089e-84.1313e-61.3238e-64.5211e-87.3799e-985.7253
IMI GUHHZ1.7293e-61.8787e-71.2431e-75.2268e-82.7505e-83.5623e-67.0421e-73.6254e-84.4799e-994.5192
IMI GUHHN2.8767e-64.2484e-72.3808e-71.1629e-75.0625e-85.9439e-61.2574e-66.1295e-81.1369e-894.5192
IMI GUHHE1.8163e-62.6286e-71.5934e-78.3926e-83.3752e-83.5594e-69.4660e-74.2865e-85.5452e-994.5192
SAOF FRHHZ5.7778e-71.3292e-71.1416e-75.2573e-82.1142e-81.4042e-66.0832e-72.7887e-83.5368e-995.8209
SAOF FRHHN5.8520e-71.0247e-79.5892e-86.5904e-82.6662e-81.2371e-65.5505e-73.2720e-83.4946e-995.8209
SAOF FRHHE6.6191e-71.5374e-71.1623e-78.6425e-84.0510e-81.7664e-66.3866e-75.0747e-84.8034e-995.8209
TURF FRHHZ8.1816e-71.1629e-71.0055e-74.5062e-82.1396e-81.7643e-67.4279e-73.4378e-82.7112e-9103.5215
TURF FRHHN9.6182e-71.6409e-71.3048e-75.2922e-82.6640e-83.6323e-65.7396e-74.1819e-83.9849e-9103.5215
TURF FRHHE1.1664e-61.7845e-71.3491e-76.0674e-82.6297e-84.5473e-68.9917e-73.1054e-85.0830e-9103.5215
ISO FRHHZ5.8012e-71.1481e-76.8641e-83.1727e-81.3710e-81.2841e-62.5151e-71.7466e-82.5073e-9106.2235
ISO FRHHN6.2428e-79.8981e-86.5178e-82.5334e-81.1777e-81.5239e-62.8086e-71.4359e-82.3252e-9106.2235
ISO FRHHE8.0518e-71.1809e-77.6184e-83.0541e-81.1436e-81.7163e-63.2341e-71.4917e-82.6716e-9106.2235
CIRO GUHHZ3.4619e-77.5501e-86.1965e-81.7023e-87.8370e-99.4798e-72.5523e-71.1734e-81.7264e-9108.3336
CIRO GUHHN3.7819e-76.9883e-84.5871e-81.3581e-87.9696e-99.7399e-72.0713e-71.1679e-81.6660e-9108.3336
CIRO GUHHE4.6714e-77.8371e-85.8291e-82.3664e-88.6615e-92.0208e-62.6570e-71.1276e-82.1447e-9108.3336
BURY GUHHZ1.8702e-62.4923e-71.1324e-75.7183e-83.7985e-83.2393e-66.6269e-74.5065e-87.0062e-9115.8204
BURY GUHHN1.0784e-61.5691e-71.2632e-76.5228e-83.5100e-83.1512e-66.1192e-75.2567e-84.4189e-9115.8204
BURY GUHHE1.3490e-61.7595e-71.1777e-75.4746e-83.3149e-82.9172e-65.7609e-75.0336e-84.4768e-9115.8204
*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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