MANUAL Location - Area: Zona Piacenza , magnitude (ML): 3.0
2025-03-31 16:48:46 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-03-31 17:13:37

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Earthquake info - Manual location
Event - ID :250331164817
Magnitude (ML) :3.0 +/- 0.2
Origin Time :2025-03-31 16:48:46.969 (UTC)
Location : Latitude: 44.861 N, Longitude: 9.916 E
Area :Zona Piacenza
Depth (km) :11.68
Distances (km) : 3.9 --- Castell Arquato
5.7 --- Alseno
7.0 --- Salsomaggiore Terme
7.6 --- Fiorenzuola d Arda
8.1 --- Lugagnano Val d Arda
9.5 --- Vernasca
11.4 --- Fidenza
11.9 --- Carpaneto Piacentino
12.7 --- Cadeo
14.2 --- Pellegrino Parmense
14.3 --- Besenzone
15.0 --- Gropparello
15.1 --- Cortemaggiore
16.5 --- Busseto
17.7 --- San Giorgio Piacentino
18.1 --- Soragna
18.1 --- San Pietro in Cerro
18.6 --- Pontenure
18.7 --- Bore
19.5 --- Villanova sull Arda

Quality location estimate: Erh: 0.9 km, Erz: 1.7 km, Nf: 54, Gap: 78 °, 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.
GRAMGU2025-03-31 16:48:55.5700.0200-0.021.582025-03-31 16:49:02.2100.13340.171.3844.6
NEVIIV2025-03-31 16:48:57.0210.02000.271.212025-03-31 16:49:05.7330.04001.400.0945.8
GORRGU2025-03-31 16:48:57.7400.02910.011.582025-03-31 16:49:05.7270.3577-0.531.0858.1
ERBMIV2025-03-31 16:48:59.6400.0301-0.351.242025-03-31 16:49:10.2230.04000.141.3764.1
MSSAIV2025-03-31 16:48:59.1200.0331-0.171.432025-03-31 16:49:08.1700.2056-0.611.0169.5
FIVIGU2025-03-31 16:48:59.6440.0200-0.361.232025-03-31 16:49:09.6060.04000.211.2872.1
GSCLGU2025-03-31 16:49:02.3810.0803-0.281.342025-03-31 16:49:13.9890.0400-0.551.0678.7
TRESNI2025-03-31 16:49:03.6500.04320.400.892025-03-31 16:49:15.1910.3187-0.361.1884.7
SARMGU2025-03-31 16:49:01.7800.0894-0.970.602025-03-31 16:49:14.1800.2547-0.441.1685.5
CAVEIV2025-03-31 16:49:05.2800.04220.131.442025-03-31 16:49:17.4980.2687-1.910.1686.4
RNCAGU2025-03-31 16:49:02.8300.09240.241.262025-03-31 16:49:14.4820.04000.111.3588.6
PLMAIV2025-03-31 16:49:02.4300.0442-0.481.112025-03-31 16:49:13.7000.2707-1.180.4991.1
RAVAIV2025-03-31 16:49:07.1520.02000.171.372025-03-31 16:49:21.5080.2937-1.230.4896.2
ZCCAIV2025-03-31 16:49:07.6100.04920.121.422025-03-31 16:49:24.1490.04000.910.30102.0
MDIIV2025-03-31 16:49:05.9700.0532-0.271.352025-03-31 16:49:20.8930.3467-0.121.19102.9
BDIIV2025-03-31 16:49:05.2200.0502-0.770.822025-03-31 16:49:20.5810.04000.400.92104.7
SERMIV2025-03-31 16:49:07.6260.0200-0.930.662025-03-31 16:49:23.0030.0400-1.980.14110.4
POPMGU2025-03-31 16:49:07.4200.0844-0.171.432025-03-31 16:49:24.9710.04001.970.03113.3
PCPGU2025-03-31 16:49:07.0300.10550.061.452025-03-31 16:49:22.8480.04001.200.15114.7
MAIMGU2025-03-31 16:49:07.6900.05620.131.412025-03-31 16:49:21.0420.0400-1.800.18115.5
BAG8IV2025-03-31 16:49:08.2450.05920.191.322025-03-31 16:49:24.0050.3557-0.241.15115.8
BALDNI2025-03-31 16:49:07.8200.0592-0.840.752025-03-31 16:49:23.3890.3648-1.380.41116.2
ROTMGU2025-03-31 16:49:11.3700.06731.750.002025-03-31 16:49:28.7470.04002.070.00123.8
PIIIV2025-03-31 16:49:10.5100.0663-0.601.012025-03-31 16:49:27.7410.0400-1.250.45136.1
MUGIOCH2025-03-31 16:49:10.6600.0703-0.660.952025-03-31 16:49:27.7790.0400-1.620.00136.8
QLNOIV2025-03-31 16:49:11.2800.06930.530.672025-03-31 16:49:27.7370.0400-0.221.25138.4
SEIIV2025-03-31 16:49:13.9100.0713-0.221.372025-03-31 16:49:34.5500.0400-0.321.16145.9
CANOGU2025-03-31 16:49:13.1000.11450.840.002025-03-31 16:49:31.1120.04000.281.02152.1


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.		 Dist. (km) Azimuth
GRAM GUHH2.847.34e+044.6164
GORR GUHH2.731.81e+058.1240
MSSA IVHH2.741.26e+069.5208
FIVI GUHN2.751.19e+072.1166
GSCL GUHH2.831.18e+078.7137
SARM GUEH2.891.33e+085.5153
RNCA GUHH2.981.26e+088.6241
PLMA IVHH3.021.27e+091.1183
ZCCA IVHH2.785.80e-1102.0124
MDI IVHH3.291.82e+0102.9351
BDI IVHH2.939.52e-1104.7148
POPM GUHH2.748.24e-1113.3143
PCP GUHH2.875.84e-1114.7252
MAIM GUHH2.965.75e-1115.5156
ROTM GUHH3.012.31e+0123.8270
PII IVHH2.944.02e-1136.1159
MUGIOCHHH3.435.71e-1136.8330
QLNO IVHH2.843.04e-1138.4245
SEI IVHH3.287.27e-1145.9128
CANO GUHH3.398.42e-1152.1242


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.
(°)
GRAM GUHHZ9.0688e-52.9917e-52.4969e-51.2032e-56.2715e-62.0929e-41.2638e-46.6992e-67.1922e-744.6164
GRAM GUHHN1.4020e-44.4405e-54.7926e-52.7632e-51.1929e-53.9585e-42.9081e-41.4819e-51.6568e-644.6164
GRAM GUHHE2.1789e-46.6876e-56.1549e-52.8126e-51.2678e-54.0575e-43.4439e-41.7763e-51.9949e-644.6164
NEVI IVHNZ1.7151e-54.5829e-64.2446e-64.5994e-62.9436e-64.6972e-52.0611e-53.5743e-62.1256e-745.8134
NEVI IVHNN2.1920e-58.8419e-68.4791e-65.0806e-63.1462e-64.6636e-56.0871e-53.6883e-62.8147e-745.8134
NEVI IVHNE3.4743e-51.3198e-51.1724e-55.7188e-62.5038e-64.1129e-51.1458e-43.5549e-64.0657e-745.8134
GORR GUHHZ3.8912e-51.0818e-51.0487e-56.8508e-63.6060e-68.1682e-55.5498e-54.7001e-62.9960e-758.1240
GORR GUHHN3.6785e-51.1310e-51.2452e-57.8646e-63.1130e-61.1895e-46.4278e-53.4070e-64.1843e-758.1240
GORR GUHHE5.1392e-51.5651e-51.3638e-58.1892e-63.1889e-61.6385e-46.2330e-54.3741e-65.4713e-758.1240
ERBM IVEHZ1.8710e-53.6581e-63.5778e-64.1384e-62.6074e-65.2080e-51.3465e-53.8407e-61.6043e-764.1141
ERBM IVEHN1.9114e-53.6416e-63.6348e-62.8461e-61.5703e-65.3038e-51.6113e-52.2049e-61.2787e-764.1141
ERBM IVEHE1.9842e-53.7835e-63.4394e-62.3685e-61.6655e-66.4189e-51.9957e-52.2559e-61.3154e-764.1141
MSSA IVHHZ1.7086e-57.2958e-66.2575e-65.4600e-63.6111e-65.1811e-53.3435e-55.2786e-62.4346e-769.5208
MSSA IVHHN2.6800e-58.0158e-69.2425e-66.1269e-62.0991e-66.4165e-54.7319e-52.7378e-62.9953e-769.5208
MSSA IVHHE2.5529e-58.7648e-68.8580e-67.7801e-62.7139e-65.4690e-54.1570e-53.6011e-63.5913e-769.5208
FIVI GUHNZ3.2660e-58.2146e-67.3973e-64.6956e-61.7421e-61.4704e-42.7744e-52.2520e-62.4840e-772.1166
FIVI GUHNN2.8338e-51.0290e-51.0241e-57.3211e-63.9484e-65.7928e-56.3362e-54.3011e-63.1836e-772.1166
FIVI GUHNE2.5278e-58.3190e-67.9031e-66.1330e-62.1550e-68.5099e-54.2266e-52.6482e-62.5213e-772.1166
GSCL GUHHZ5.0735e-62.9706e-62.2532e-63.6941e-63.4458e-61.2471e-51.1903e-54.9483e-61.8331e-778.7137
GSCL GUHHN9.5141e-65.9683e-63.6855e-64.6066e-64.7443e-61.4731e-52.1501e-56.1994e-62.8888e-778.7137
GSCL GUHHE9.6983e-67.1011e-64.9318e-68.2277e-65.0564e-61.3588e-52.9628e-55.2724e-63.0077e-778.7137
SARM GUEHZ6.2436e-62.3691e-63.0140e-62.1861e-66.8094e-71.7525e-51.8144e-59.2818e-77.8874e-885.5153
SARM GUEHN1.8104e-58.6117e-68.8573e-68.6839e-62.6284e-62.4596e-54.6558e-53.2621e-63.4315e-785.5153
SARM GUEHE9.0799e-65.4585e-65.2020e-64.3520e-62.1639e-61.6213e-53.0716e-52.4634e-61.9027e-785.5153
RNCA GUHHZ1.9748e-56.1144e-65.9823e-62.5690e-61.1759e-65.3723e-53.2280e-51.6145e-61.8471e-788.6241
RNCA GUHHN2.9479e-59.6037e-68.2331e-63.1382e-61.6201e-64.7900e-56.0953e-52.0039e-62.7081e-788.6241
RNCA GUHHE3.6351e-51.2172e-59.3041e-64.2232e-62.2340e-68.2239e-56.6464e-52.9591e-63.6465e-788.6241
PLMA IVHHZ1.6429e-54.2861e-65.5421e-64.7854e-61.6624e-63.3463e-53.1111e-51.8973e-61.8667e-791.1183
PLMA IVHHN3.8427e-51.1438e-59.5203e-64.4579e-62.5443e-65.8354e-57.2386e-53.2203e-63.8889e-791.1183
PLMA IVHHE2.2486e-57.3308e-67.9236e-65.2456e-62.0874e-64.1407e-56.1342e-52.4466e-62.3713e-791.1183
ZCCA IVHHZ5.9544e-61.7641e-61.8599e-61.6809e-65.5432e-71.6246e-59.9032e-67.5494e-77.2163e-8102.0124
ZCCA IVHHN6.7292e-64.1020e-63.3274e-63.7015e-61.1608e-61.5725e-51.5259e-51.5728e-61.3819e-7102.0124
ZCCA IVHHE5.4456e-62.0355e-61.8053e-61.6458e-66.3170e-71.4818e-58.6250e-67.5751e-78.0342e-8102.0124
MDI IVHHZ3.6731e-51.0313e-59.2703e-64.6402e-62.0927e-68.1552e-54.6896e-52.9430e-62.9077e-7102.9351
MDI IVHHN6.2876e-51.3035e-51.4494e-58.5266e-64.2917e-61.4264e-47.2729e-54.1594e-64.0063e-7102.9351
MDI IVHHE8.3733e-52.2771e-51.8431e-56.5703e-62.6390e-62.1953e-41.1270e-44.0465e-65.4659e-7102.9351
BDI IVHHZ1.1994e-52.7473e-62.7556e-61.8421e-61.0692e-63.0644e-52.5324e-51.7270e-61.0285e-7104.7148
BDI IVHHN2.3026e-56.9891e-64.2762e-63.0305e-61.2793e-64.9327e-52.7854e-51.6845e-61.5565e-7104.7148
BDI IVHHE1.7856e-54.7419e-63.5026e-62.9050e-61.3408e-63.1611e-52.0153e-51.4534e-61.2753e-7104.7148
POPM GUHHZ2.0140e-53.2556e-62.8193e-61.2570e-66.0178e-77.9922e-51.5425e-58.5377e-78.6903e-8113.3143
POPM GUHHN1.3890e-54.7349e-62.7497e-62.2329e-69.6766e-75.5444e-51.3015e-59.9923e-71.0633e-7113.3143
POPM GUHHE1.5235e-57.0254e-63.4124e-61.6232e-68.2807e-72.1188e-53.3645e-51.2181e-61.4177e-7113.3143
PCP GUHHZ1.1636e-52.6018e-62.0728e-68.6370e-74.3674e-72.9983e-51.2946e-55.8693e-77.0817e-8114.7252
PCP GUHHN6.3219e-62.2683e-61.4674e-61.1886e-65.4364e-72.5882e-58.8906e-65.8170e-75.4773e-8114.7252
PCP GUHHE9.1645e-62.1708e-61.5102e-61.0895e-65.9168e-73.0733e-57.8881e-66.5965e-74.8868e-8114.7252
MAIM GUHHZ6.1138e-61.9523e-61.5636e-61.1771e-66.1760e-71.5532e-51.2052e-57.2872e-75.5103e-8115.5156
MAIM GUHHN1.1655e-52.8745e-62.7947e-61.6993e-67.5417e-72.3935e-52.2877e-51.0981e-68.6687e-8115.5156
MAIM GUHHE7.4610e-62.9787e-62.4274e-62.8030e-61.9624e-62.2813e-51.3514e-52.4636e-61.6520e-7115.5156
BALD NIHHZ2.5036e-59.2889e-67.1359e-64.7709e-62.8013e-65.9203e-54.3189e-53.8085e-63.3261e-7116.237
BALD NIHHN6.6687e-52.2213e-52.2460e-51.6813e-58.5398e-61.6846e-41.0967e-41.0971e-58.3991e-7116.237
BALD NIHHE7.0241e-52.8353e-53.1647e-51.7977e-58.5156e-61.6922e-42.1794e-41.0557e-51.1869e-6116.237
ROTM GUHHZ1.7815e-57.9631e-63.5235e-61.3575e-66.6758e-74.0639e-52.0118e-59.9261e-71.4667e-7123.8270
ROTM GUHHN4.4680e-51.3607e-51.2275e-58.9675e-63.1953e-68.4463e-58.0791e-54.0242e-64.2932e-7123.8270
ROTM GUHHE5.1120e-51.7511e-59.9547e-64.3575e-62.0195e-64.5186e-57.1197e-52.4627e-62.8151e-7123.8270
PII IVHHZ5.9030e-61.9989e-61.7563e-67.6172e-75.1949e-71.8189e-51.0320e-59.2629e-76.4602e-8136.1159
PII IVHHN6.4520e-62.8249e-62.1112e-61.3808e-67.2770e-71.9255e-51.4792e-57.4580e-78.2815e-8136.1159
PII IVHHE8.9669e-62.5791e-61.9364e-61.2300e-66.0479e-72.2451e-51.2332e-57.4485e-77.2076e-8136.1159
MUGIOCHHHZ1.0913e-52.7749e-62.2717e-61.0712e-68.2536e-73.0924e-51.3419e-51.0017e-67.0590e-8136.8330
MUGIOCHHHN9.4099e-62.6738e-62.4729e-61.5831e-65.7911e-71.8614e-51.1351e-57.2493e-77.1101e-8136.8330
MUGIOCHHHE1.6431e-55.1369e-62.6608e-61.3851e-67.8788e-71.9714e-52.0131e-51.1547e-69.8053e-8136.8330
QLNO IVHHZ7.9440e-61.8410e-61.6499e-67.8129e-74.5711e-71.9369e-57.6451e-65.6497e-76.7588e-8138.4245
QLNO IVHHN9.3453e-62.9863e-61.4763e-67.6322e-74.5550e-71.4560e-56.6334e-65.9874e-75.8429e-8138.4245
QLNO IVHHE1.2582e-53.2468e-61.9773e-68.6528e-75.0028e-72.3991e-51.0185e-57.4788e-78.2425e-8138.4245
SEI IVHHZ5.4811e-62.0310e-62.1674e-61.5306e-66.4902e-78.8490e-61.4056e-57.1002e-78.1537e-8145.9128
SEI IVHHN4.3599e-61.6661e-61.9949e-61.4134e-64.5431e-77.1785e-61.0090e-55.5335e-75.5543e-8145.9128
SEI IVHHE3.8248e-61.5061e-61.6301e-61.1522e-63.7095e-75.9064e-69.1431e-64.4912e-75.3879e-8145.9128
CANO GUHHZ1.0577e-52.6272e-61.4402e-65.3415e-72.3626e-72.8249e-57.3079e-62.9489e-74.9283e-8152.1242
CANO GUHHN1.1594e-55.6213e-63.3414e-61.4981e-66.6560e-72.1903e-51.7697e-58.9070e-71.3256e-7152.1242
CANO GUHHE1.0579e-53.8620e-62.2776e-69.6953e-73.7063e-71.7618e-51.5507e-55.1256e-77.8577e-8152.1242
*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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