MANUAL Location - Area: Frignano , magnitude (ML): 1.7
2026-04-22 00:03:14 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2026-04-22 09:01:44

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Earthquake info - Manual location
Event - ID :260422000253
Magnitude (ML) :1.7 +/- 0.2
Origin Time :2026-04-22 00:03:14.936 (UTC)
Location : Latitude: 44.440 N, Longitude: 10.631 E
Area :Frignano
Depth (km) :22.02
Distances (km) : 5.0 --- Prignano sulla Secchia
7.0 --- Baiso
8.9 --- Toano
9.1 --- Carpineti
9.3 --- Montefiorino
11.2 --- Castellarano
11.9 --- Viano
12.6 --- Serramazzoni
12.8 --- Polinago
13.0 --- Casina
13.1 --- Palagano
15.4 --- Villa Minozzo
16.5 --- Sassuolo
16.6 --- Frassinoro
16.6 --- Lama Mocogno
17.2 --- Casalgrande
18.2 --- Fiorano Modenese
18.3 --- Scandiano
18.3 --- Castelnovo ne Monti
19.1 --- Vezzano sul Crostolo

Quality location estimate: Erh: 1.5 km, Erz: 1.8 km, Nf: 41, Gap: 104 °, Rms: 0.38


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.
GSCLGU2026-04-22 00:03:19.9000.0120-0.031.532026-04-22 00:03:23.0100.0611-0.580.4025.0
ZCCAIV2026-04-22 00:03:22.7600.01700.091.692026-04-22 00:03:28.9300.04000.301.3837.0
SARMGU2026-04-22 00:03:22.5300.06430.211.582026-04-22 00:03:27.8700.11230.151.5741.0
VLCMN2026-04-22 00:03:22.9400.02710.231.532026-04-22 00:03:28.6990.18450.341.2643.2
BDIIV2026-04-22 00:03:23.6200.0200-0.031.532026-04-22 00:03:30.0600.04000.071.5847.5
GRAMGU2026-04-22 00:03:25.3300.02611.130.462026-04-22 00:03:32.2260.04001.310.3650.3
POPMGU2026-04-22 00:03:24.1500.0251-0.071.342026-04-22 00:03:30.5900.1384-0.510.4850.4
VGLIT2026-04-22 00:03:24.3030.02000.251.492026-04-22 00:03:30.6380.04000.061.5650.9
CARDGU2026-04-22 00:03:24.9500.02710.530.762026-04-22 00:03:31.4000.10020.171.5252.5
EQUIGU2026-04-22 00:03:24.5290.02000.011.612026-04-22 00:03:31.0050.0400-0.300.6653.6
CRRIT2026-04-22 00:03:25.9120.02000.011.582026-04-22 00:03:33.8720.04000.261.4261.3
MAIMGU2026-04-22 00:03:27.5200.03311.220.442026-04-22 00:03:35.1000.04000.690.5963.6
CMEIT2026-04-22 00:03:27.4580.02001.090.432026-04-22 00:03:33.8050.0400-0.660.3564.1
PLMAIV2026-04-22 00:03:29.2400.04120.480.952026-04-22 00:03:38.6370.04000.151.4278.7
PIIIV2026-04-22 00:03:30.5600.04220.740.462026-04-22 00:03:39.3600.6449-1.130.2683.2
MSSAIV2026-04-22 00:03:31.7200.04820.421.092026-04-22 00:03:42.7650.0400-0.510.5392.4
LMDIV2026-04-22 00:03:34.4500.02000.500.942026-04-22 00:03:49.5020.04000.860.5897.2
GORRGU2026-04-22 00:03:35.8100.05621.330.342026-04-22 00:03:50.7000.04001.440.26110.0
CSNTIV2026-04-22 00:03:36.0400.02000.061.452026-04-22 00:03:51.7670.04000.031.15121.7
RNCAGU2026-04-22 00:03:39.6400.06932.280.002026-04-22 00:03:58.1700.04004.880.00135.2
GARGNI2026-04-22 00:03:39.5200.07030.211.372026-04-22 00:03:56.9880.0400-0.660.47140.9
BALDNI2026-04-22 00:03:39.0700.1035-0.400.652026-04-22 00:03:55.4720.0400-2.480.00141.0


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.		 Dist. (km) Azimuth
GSCL GUHH1.981.67e+025.0199
ZCCA IVHH1.563.06e-137.0110
SARM GUEH1.462.39e-141.0213
VLC MNHH1.441.20e-143.2212
POPM GUHH1.432.48e-150.4167
CARD GUHH1.461.21e-152.5195
CRR ITHN1.842.08e-161.3227
MAIM GUHH1.315.01e-263.6191
CME ITHN1.651.22e-164.1206
PLMA IVHH1.698.37e-278.7235
PII IVHH1.961.40e-183.2186
MSSA IVHH1.574.44e-292.4262
GORR GUHH1.916.46e-2110.0280
RNCA GUHH1.944.11e-2135.2272


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.
(°)
GSCL GUHHZ2.3088e-55.2613e-65.0937e-62.0082e-69.3248e-75.5516e-53.3077e-51.0336e-61.4894e-725.0199
GSCL GUHHN6.3554e-51.6005e-51.4445e-54.8556e-62.8209e-61.6263e-48.9161e-53.8385e-64.4503e-725.0199
GSCL GUHHE2.8493e-59.0470e-67.9975e-63.4118e-61.7289e-66.5237e-55.6400e-52.5330e-62.9731e-725.0199
ZCCA IVHHZ3.2331e-67.7837e-77.6341e-74.8832e-71.9215e-71.1902e-54.6785e-62.4219e-72.3786e-837.0110
ZCCA IVHHN3.4230e-62.0872e-61.8376e-61.7297e-65.4336e-78.4195e-61.0371e-56.6783e-77.1488e-837.0110
ZCCA IVHHE3.4567e-68.9231e-79.6653e-76.5603e-72.2016e-77.3811e-64.5586e-62.5791e-73.1224e-837.0110
SARM GUEHZ5.4991e-61.2940e-68.8993e-73.8967e-71.9039e-71.8467e-54.4334e-62.8261e-72.7431e-841.0213
SARM GUEHN7.2305e-61.9630e-61.5289e-61.1154e-64.3336e-71.7455e-58.4377e-64.8676e-75.4054e-841.0213
SARM GUEHE4.6182e-61.0090e-61.0366e-66.5089e-72.6961e-71.0153e-58.1532e-62.8840e-73.1528e-841.0213
VLC MNHHZ6.2676e-61.1075e-67.6745e-73.1907e-71.5786e-71.4012e-52.9605e-62.1868e-72.5070e-843.2212
VLC MNHHN4.3057e-61.0824e-69.8326e-75.4625e-72.6376e-71.1852e-58.5408e-63.4155e-73.3194e-843.2212
VLC MNHHE4.5209e-61.0879e-69.2622e-74.1341e-71.8995e-71.2600e-54.7358e-62.2170e-73.0329e-843.2212
POPM GUHHZ4.4977e-61.1652e-61.0894e-65.0372e-72.6100e-71.4995e-59.7223e-63.1422e-73.3010e-850.4167
POPM GUHHN7.2747e-62.0838e-61.6799e-66.5426e-73.0557e-72.1707e-51.0230e-53.8359e-75.0425e-850.4167
POPM GUHHE8.8408e-62.9363e-62.0591e-68.5108e-74.4410e-72.3339e-51.6945e-56.1076e-77.0149e-850.4167
VGL ITHGZ1.1159e-52.5779e-62.4666e-61.1143e-64.0224e-73.9981e-51.5794e-56.6314e-77.5495e-850.9217
VGL ITHGN2.0229e-57.4222e-65.3898e-62.6408e-61.0981e-64.3234e-53.9872e-51.3677e-61.8060e-750.9217
VGL ITHGE1.6965e-54.9252e-64.9868e-61.9086e-67.4134e-72.5796e-54.0369e-51.0161e-61.5332e-750.9217
CARD GUHHZ3.2193e-65.7320e-74.0756e-72.1642e-71.1465e-71.5907e-52.4547e-61.1326e-71.4238e-852.5195
CARD GUHHN7.9124e-61.6638e-61.0024e-64.1330e-72.1237e-72.1381e-53.3224e-62.4673e-73.7250e-852.5195
CARD GUHHE8.0021e-61.6463e-61.1443e-63.4228e-71.3911e-72.8838e-53.2759e-62.1755e-74.0292e-852.5195
EQUI GUHHZ1.1115e-62.5644e-72.7258e-71.8946e-79.1374e-83.7746e-61.5600e-69.6185e-88.0223e-953.6231
EQUI GUHHN1.3611e-63.6374e-73.4433e-72.1787e-79.7321e-83.5720e-62.3778e-61.2733e-79.9663e-953.6231
EQUI GUHHE9.7439e-72.0007e-71.8326e-71.1849e-77.1257e-82.9841e-67.6889e-78.3320e-86.3280e-953.6231
CRR ITHNZ5.9257e-61.8732e-61.3750e-67.0856e-72.8368e-71.8904e-56.9462e-63.1104e-74.4273e-861.3227
CRR ITHNN9.5183e-62.2335e-61.9559e-69.0182e-73.8769e-73.4154e-57.4952e-65.2497e-77.2162e-861.3227
CRR ITHNE9.1537e-62.4303e-62.0052e-61.0110e-63.6897e-74.0160e-58.7495e-64.3333e-75.8322e-861.3227
MAIM GUHHZ1.3719e-62.8421e-72.5728e-71.6711e-76.5740e-85.4799e-61.7038e-68.4441e-87.6785e-963.6191
MAIM GUHHN1.8177e-65.0069e-75.3625e-72.9497e-71.1257e-75.6145e-63.8013e-61.3364e-71.5828e-863.6191
MAIM GUHHE2.2720e-64.7400e-74.1407e-72.3638e-71.1464e-75.5829e-62.6157e-61.4543e-71.4941e-863.6191
CME ITHNZ2.9518e-65.7372e-76.4507e-74.0520e-71.8545e-78.0590e-62.9802e-62.1621e-71.8728e-864.1206
CME ITHNN4.3326e-61.3705e-61.1604e-65.3302e-72.0478e-71.1084e-57.3365e-63.0109e-73.9332e-864.1206
CME ITHNE3.4388e-69.3154e-79.0305e-74.8549e-72.1661e-79.8931e-65.0728e-63.0911e-73.2138e-864.1206
PLMA IVHHZ1.9246e-64.6800e-73.7570e-72.3360e-71.7271e-76.1140e-61.4863e-62.4679e-71.3887e-878.7235
PLMA IVHHN1.6017e-66.4368e-76.7659e-74.4947e-71.4046e-75.8964e-63.1427e-61.7372e-72.1541e-878.7235
PLMA IVHHE1.2770e-63.4887e-73.9523e-72.6414e-71.3110e-74.5362e-62.0529e-61.4903e-71.3625e-878.7235
PII IVHHZ2.8204e-66.1960e-76.4864e-73.4067e-71.3229e-71.2745e-53.5554e-61.4905e-71.6838e-883.2186
PII IVHHN2.1195e-61.0039e-68.6348e-76.4683e-72.6532e-74.4815e-65.1698e-63.1692e-73.1263e-883.2186
PII IVHHE3.5072e-61.2221e-61.1042e-65.8504e-72.1965e-75.9740e-66.8974e-62.7242e-73.5034e-883.2186
MSSA IVHHZ9.0228e-72.0072e-71.9078e-71.4252e-75.3841e-82.4177e-61.1755e-65.8770e-85.9501e-992.4262
MSSA IVHHN6.6134e-72.5921e-72.0566e-72.2189e-71.2970e-71.7540e-61.0799e-61.2992e-77.9929e-992.4262
MSSA IVHHE7.1009e-72.9054e-72.6945e-72.8009e-71.2077e-71.8444e-61.2262e-61.3335e-71.2722e-892.4262
GORR GUHHZ1.5683e-63.0883e-72.7559e-71.4956e-76.8140e-84.9145e-61.3659e-67.6362e-87.7121e-9110.0280
GORR GUHHN1.4280e-64.9524e-72.8773e-72.1131e-78.1747e-83.5194e-61.8241e-61.0989e-71.0617e-8110.0280
GORR GUHHE2.1429e-67.4504e-72.6377e-71.3589e-76.9388e-84.3466e-61.2520e-68.5807e-88.1358e-9110.0280
RNCA GUHHZ1.1838e-62.1389e-72.5157e-71.2411e-74.7130e-83.8959e-61.9792e-65.7897e-86.2585e-9135.2272
RNCA GUHHN7.3667e-71.2372e-71.3633e-77.1745e-83.5138e-81.6210e-69.6247e-74.3898e-84.2156e-9135.2272
RNCA GUHHE1.0572e-62.7817e-72.1525e-71.0517e-74.7132e-83.8619e-61.1710e-65.8407e-87.2966e-9135.2272
GARG NIEHZ3.4200e-67.1057e-76.4956e-72.7228e-71.0540e-71.4420e-53.4732e-61.3481e-72.1488e-8140.91
GARG NIEHN4.8511e-71.2936e-77.8922e-89.5041e-89.8089e-89.4459e-74.5681e-71.5826e-78.5871e-9140.91
GARG NIEHE2.1285e-66.7795e-75.8353e-72.4646e-71.5529e-75.5270e-64.4740e-62.5235e-72.0267e-8140.91
BALD NIHHZ1.9731e-65.5650e-73.6770e-73.9311e-72.4701e-77.4906e-62.4046e-62.8236e-71.7884e-8141.06
BALD NIHHN3.0644e-68.7887e-76.1548e-72.9544e-71.5606e-78.0984e-63.0778e-61.8151e-72.6406e-8141.06
BALD NIHHE5.3624e-61.2274e-61.1538e-66.9373e-73.0816e-71.2797e-56.1932e-63.5753e-73.8215e-8141.06
*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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