AUTOMATIC Location - Area: Frignano , magnitude (ML): 2.5
2025-12-20 17:54:28 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-12-20 17:59:06

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Earthquake info - RsniPicker2 automatic location
Event - ID :251220175411
Magnitude (ML) :2.5 +/- 0.4
Origin Time :2025-12-20 17:54:28.82 (UTC)
Location : Latitude: 44.555 N, Longitude: 10.205 E
Area :Frignano
Depth (km) :28.06
Distances (km) : 3.7 --- Tizzano Val Parma (PR)
8.4 --- Calestano (PR)
8.4 --- Langhirano (PR)
9.4 --- Neviano Degli Arduini (PR)
11.1 --- Terenzo (PR)
12.4 --- Lesignano de Bagni (PR)
12.7 --- Corniglio (PR)
13.1 --- Vetto (RE)
13.2 --- Palanzano (PR)
16.0 --- Felino (PR)
16.8 --- Ramiseto (RE)
17.0 --- Canossa (RE)
17.0 --- Traversetolo (PR)
17.0 --- Monchio delle Corti (PR)
17.3 --- Fornovo di Taro (PR)
17.8 --- Berceto (PR)
18.1 --- Sala Baganza (PR)
19.1 --- San Polo d Enza (RE)
19.1 --- Solignano (PR)
20.4 --- Castelnovo ne Monti (RE)

Quality location estimate:
Erh: 0.8 km, Erz: 0.6 km, Nf: 37, Gap: 69°, Rms: 0.226 s
Stazioni validate: 24


RsniPicker2 - Automatic location results
Station Net P arrival times P pick
err		 P pick
weight		 P res Nll
weight		 S arrival time S pick
err		 S pick
weight		 S res Nll
weight		 Dist.
GRAMGU2025-12-20 17:54:34.5200.01600.041.672025-12-20 17:54:38.6300.0931-0.091.6431.0
ERBMIV2025-12-20 17:54:35.9190.01800.041.672025-12-20 17:54:41.2590.1122-0.151.4635.8
GSCLGU2025-12-20 17:54:37.8800.0240-0.101.712025-12-20 17:54:44.7200.1422-0.061.4347.2
EQUIGU2025-12-20 17:54:37.7000.0260-0.181.462025-12-20 17:54:44.5700.15520.041.3551.7
SARMGU2025-12-20 17:54:38.1800.0260-0.071.762025-12-20 17:54:44.9100.1572-0.261.1652.2
VLCMN2025-12-20 17:54:38.3800.0561-0.031.732025-12-20 17:54:45.3400.1842-0.081.3454.1
MSSAIV2025-12-20 17:54:41.1890.03400.430.402025-12-20 17:54:48.8800.2012-0.760.4166.9
PLMAIV2025-12-20 17:54:40.6190.0400-0.211.372025-12-20 17:54:48.8380.4342-0.800.5068.7
CARDGU2025-12-20 17:54:40.9700.03900.061.50--:---.-----.---.-- 68.8
POPMGU2025-12-20 17:54:42.9000.03900.370.54--:---.-----.---.-- 77.0
CAVEIV--:---.-----.---.--2025-12-20 17:54:57.4590.23220.021.0877.2
GORRGU2025-12-20 17:54:42.6100.0390-0.051.642025-12-20 17:54:51.8860.2382-1.320.1777.7
MAIMGU2025-12-20 17:54:43.0700.04000.240.882025-12-20 17:54:52.4100.2402-0.420.8679.9
PIIIV2025-12-20 17:54:46.2200.05010.051.432025-12-20 17:54:57.5600.6233-1.340.27100.1
SERMIV2025-12-20 17:54:47.8600.0951-0.350.972025-12-20 17:55:01.6100.3112-1.510.15103.7
RNCAGU2025-12-20 17:54:46.7900.05211.010.12--:---.-----.---.-- 103.7
TRESNI2025-12-20 17:54:48.3100.0551-0.011.442025-12-20 17:55:02.3200.3302-1.180.27109.9
LMDIV2025-12-20 17:54:53.3300.06710.011.30--:---.-----.---.-- 133.7
RUFIIV2025-12-20 17:54:52.3300.06710.760.20--:---.-----.---.-- 134.0
GARGNI2025-12-20 17:54:51.1100.0671-0.311.06--:---.-----.---.-- 134.2
PCPGU2025-12-20 17:54:51.3200.06811.070.11--:---.-----.---.-- 134.5
BALDNI2025-12-20 17:54:51.4700.0681-0.630.50--:---.-----.---.-- 137.3
MDIIV2025-12-20 17:54:53.0090.07210.181.07--:---.-----.---.-- 143.2
DOSSST2025-12-20 17:54:55.1100.0841-0.770.40--:---.-----.---.-- 168.7


RsniPicker2 - Automatic magnitude (ML) calculation results
Station Net Stat. Mag. Wood-And.
Ampl.		 Dist. (km) Azimuth Used
GRAM GU3.102.60e+131.0238SI
ERBM IV2.301.67e+035.8132SI
GSCL GU2.207.89e-147.2127SI
EQUI GU2.004.75e-151.7186SI
SARM GU2.106.35e-152.2159SI
MSSA IV2.305.37e-166.9244SI
PLMA IV2.304.72e-168.7207SI
CARD GU2.203.68e-168.8159SI
POPM GU2.104.37e-177.0142SI
GORR GU2.404.19e-177.7275SI
MAIM GU2.302.82e-179.9162SI
PII IV2.302.00e-1100.1164SI
RNCA GU2.805.38e-1103.7265SI
GARG NI2.903.83e-1134.216SI
PCP GU2.501.76e-1134.5270SI
BALD NI3.501.39e+0137.321SI
MDI IV2.601.60e-1143.2344SI


Results of PGA, PGV, IH, spectral amplitudes (SA) values calculation
Station Net Channel PGA
(g)		 PGV
(m/s)		 PGD
(m)		 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 GUHHZ3.6391e-48.4736e-50.0000e+06.0011e-59.5111e-51.2652e-44.6726e-43.1180e-41.4903e-51.5629e-631.0238
GRAM GUHHN1.0044e-32.7541e-40.0000e+01.1668e-41.8846e-41.8846e-41.2062e-37.1879e-42.1066e-53.0950e-631.0238
GRAM GUHHE8.8009e-42.6051e-40.0000e+01.4606e-42.4765e-43.3650e-41.0133e-36.1335e-42.8898e-54.1218e-631.0238
GSCL GUHHZ7.0164e-62.6802e-60.0000e+02.8711e-66.0735e-67.7609e-61.1567e-51.3868e-51.4761e-61.1061e-747.2127
GSCL GUHHN1.4837e-56.1416e-60.0000e+05.9903e-61.1484e-51.1484e-52.2954e-52.3253e-52.8437e-62.1681e-747.2127
GSCL GUHHE1.2784e-54.7298e-60.0000e+04.8091e-69.1605e-61.2583e-52.5385e-53.0455e-53.7127e-61.9946e-747.2127
EQUI GUHHZ6.2827e-62.5435e-60.0000e+02.1117e-64.7745e-66.3914e-61.7564e-51.5795e-51.2406e-61.2950e-751.7186
EQUI GUHHN6.7578e-62.7397e-60.0000e+02.8425e-65.9510e-65.9510e-61.8073e-52.2734e-52.4577e-61.8920e-751.7186
EQUI GUHHE6.9590e-61.7629e-60.0000e+01.8438e-63.7552e-65.1002e-62.3149e-59.1922e-61.3108e-61.1480e-751.7186
SARM GUEHZ7.8459e-63.3341e-60.0000e+02.6159e-65.2205e-66.7445e-61.9531e-51.6986e-51.2208e-61.0778e-752.2159
SARM GUEHN1.2171e-54.8237e-60.0000e+04.9014e-69.3347e-69.3347e-63.2642e-52.9226e-52.3467e-61.9484e-752.2159
SARM GUEHE9.3703e-62.8567e-60.0000e+03.2412e-66.6994e-68.4227e-62.3825e-52.4195e-51.4318e-61.4146e-752.2159
VLC MNHHZ5.6665e-61.5336e-60.0000e+01.6519e-63.0710e-64.0775e-61.9995e-55.8449e-61.0645e-66.0326e-854.1-1
VLC MNHHN1.0410e-52.5648e-60.0000e+02.1104e-64.5639e-64.5639e-63.1417e-59.4598e-61.5776e-61.1228e-754.1-1
VLC MNHHE7.5143e-63.3698e-60.0000e+02.2682e-64.8611e-67.2942e-62.5009e-57.2325e-62.0913e-61.2015e-754.1-1
MSSA IVHHZ2.2735e-65.8971e-70.0000e+05.7118e-71.0380e-61.4240e-65.8602e-64.4379e-64.1539e-72.4181e-866.9244
MSSA IVHHN4.1626e-61.4959e-60.0000e+01.3067e-62.5049e-62.5049e-66.7221e-66.4017e-66.2131e-77.7128e-866.9244
MSSA IVHHE4.2526e-61.3280e-60.0000e+01.5420e-62.6711e-63.5115e-67.5955e-69.8562e-67.2180e-75.5038e-866.9244
PLMA IVHHZ4.5833e-61.9705e-60.0000e+01.7694e-63.0450e-64.0967e-61.6126e-59.6816e-64.7348e-75.4024e-868.7207
PLMA IVHHN1.7178e-54.3620e-60.0000e+04.4911e-67.1688e-67.1688e-64.5696e-52.5529e-58.5519e-71.2128e-768.7207
PLMA IVHHE1.2119e-53.0054e-60.0000e+03.1675e-65.0078e-66.7223e-64.7524e-51.6894e-59.0576e-77.5918e-868.7207
CARD GUHHZ8.7258e-61.7219e-60.0000e+01.6363e-63.0603e-64.1575e-63.5260e-57.1435e-61.2026e-65.1879e-868.8159
CARD GUHHN1.9066e-54.1881e-60.0000e+03.8399e-67.0827e-67.0827e-68.3438e-51.8362e-52.0490e-61.3378e-768.8159
CARD GUHHE1.6124e-54.1374e-60.0000e+03.6179e-66.5674e-69.0653e-65.1275e-51.4542e-51.6965e-61.2303e-768.8159
POPM GUHHZ1.1985e-52.2037e-60.0000e+02.5997e-64.2298e-65.4817e-64.9440e-51.5127e-56.2594e-76.3586e-877.0142
POPM GUHHN1.6589e-54.9283e-60.0000e+04.2529e-67.4020e-67.4020e-64.2118e-51.7575e-51.1568e-61.2628e-777.0142
POPM GUHHE1.5355e-54.6378e-60.0000e+04.1659e-67.2909e-69.6770e-63.9735e-52.1356e-51.2253e-61.3755e-777.0142
GORR GUHHZ5.9857e-61.9059e-60.0000e+01.8695e-63.2235e-64.1223e-61.5958e-58.9900e-65.5431e-77.2900e-877.7275
GORR GUHHN9.4214e-63.8240e-60.0000e+03.2413e-65.9019e-65.9019e-61.2536e-51.9472e-51.2624e-61.2928e-777.7275
GORR GUHHE7.7046e-63.1209e-60.0000e+02.5118e-64.7331e-66.4320e-61.5902e-51.3670e-51.3315e-61.1565e-777.7275
MAIM GUHHZ2.3210e-67.9204e-70.0000e+07.8018e-71.7442e-62.5798e-68.5305e-64.6115e-61.2620e-65.6406e-879.9162
MAIM GUHHN5.4257e-61.5954e-60.0000e+01.4017e-63.3955e-63.3955e-61.4404e-55.4493e-61.5409e-69.5158e-879.9162
MAIM GUHHE4.6759e-61.7453e-60.0000e+01.4618e-63.6236e-64.8313e-61.0954e-58.0831e-61.4444e-69.5645e-879.9162
PII IVHHZ3.8045e-61.4085e-60.0000e+01.1699e-62.2454e-62.9447e-68.1934e-64.9279e-65.0301e-75.1259e-8100.1164
PII IVHHN4.3662e-61.6415e-60.0000e+01.8156e-62.8631e-62.8631e-69.5584e-61.3663e-54.5148e-75.5695e-8100.1164
PII IVHHE3.8041e-61.3556e-60.0000e+01.6275e-62.7536e-63.5939e-69.8846e-61.0189e-56.2580e-75.1096e-8100.1164
RNCA GUHHZ1.2898e-43.8055e-50.0000e+03.2356e-55.6223e-57.5937e-52.1596e-41.6138e-41.1135e-59.1954e-7103.7265
RNCA GUHHN1.0958e-44.9822e-50.0000e+04.1323e-57.8689e-57.8689e-51.7572e-42.2715e-42.0960e-51.7476e-6103.7265
RNCA GUHHE2.6888e-48.7224e-50.0000e+06.9715e-51.2174e-41.6888e-43.6257e-44.0654e-42.5254e-52.7133e-6103.7265
GARG NIEHZ1.3157e-53.1140e-60.0000e+02.9883e-65.6039e-67.4452e-63.5719e-58.9936e-68.1804e-79.0167e-8134.216
GARG NIEHN4.0532e-71.3737e-70.0000e+08.5348e-82.1052e-72.1052e-78.1046e-74.3088e-71.0345e-78.0006e-9134.216
GARG NIEHE1.1792e-52.9400e-60.0000e+02.8237e-65.0090e-66.8226e-62.5734e-51.7667e-51.4551e-67.3454e-8134.216
PCP GUHHZ2.5612e-68.5128e-70.0000e+07.5699e-71.2600e-61.7415e-64.6871e-64.5072e-65.1064e-72.7051e-8134.5270
PCP GUHHN1.6184e-61.0438e-60.0000e+08.9718e-72.0303e-62.0303e-63.6664e-66.8791e-66.8147e-74.6299e-8134.5270
PCP GUHHE2.1236e-66.1120e-70.0000e+05.7128e-71.0703e-61.4092e-65.1644e-62.7904e-62.5806e-72.0066e-8134.5270
BALD NIHHZ9.9192e-62.2752e-60.0000e+02.0805e-63.7732e-65.1261e-62.6451e-58.1194e-61.4452e-69.0009e-8137.321
BALD NIHHN2.1515e-54.8884e-60.0000e+04.6809e-68.1267e-68.1267e-64.9753e-51.8129e-51.0195e-61.1979e-7137.321
BALD NIHHE1.4097e-55.8479e-60.0000e+05.0629e-68.3803e-61.0807e-54.0954e-53.3371e-51.6101e-61.6324e-7137.321
MDI IVHHZ2.9519e-68.1958e-70.0000e+05.1888e-79.5809e-71.2853e-64.3567e-62.6051e-62.0051e-72.2332e-8143.2344
MDI IVHHN3.6280e-61.0265e-60.0000e+01.1558e-61.9022e-61.9022e-66.9212e-68.3840e-62.6299e-73.4868e-8143.2344
MDI IVHHE5.2223e-61.5132e-60.0000e+01.3168e-62.3649e-63.1951e-61.2910e-57.3849e-63.6116e-74.2738e-8143.2344
*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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