AUTOMATIC Location - Area: Frignano , magnitude (ML): 1.6
2025-09-18 00:00:51 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-09-18 00:05:24

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Earthquake info - RsniPicker2 automatic location
Event - ID :250918000030
Magnitude (ML) :1.6 +/- 0.2
Origin Time :2025-09-18 00:00:51.549 (UTC)
Location : Latitude: 44.432 N, Longitude: 10.653 E
Area :Frignano
Depth (km) :16.48
Distances (km) : 3.4 --- Prignano sulla Secchia (MO)
8.5 --- Baiso (RE)
8.8 --- Montefiorino (MO)
9.6 --- Toano (RE)
10.7 --- Castellarano (RE)
10.9 --- Serramazzoni (MO)
11.0 --- Carpineti (RE)
11.1 --- Polinago (MO)
12.2 --- Palagano (MO)
12.9 --- Viano (RE)
15.0 --- Casina (RE)
15.1 --- Lama Mocogno (MO)
16.0 --- Sassuolo (MO)
16.4 --- Frassinoro (MO)
16.6 --- Villa Minozzo (RE)
17.2 --- Casalgrande (RE)
17.5 --- Fiorano Modenese (MO)
18.0 --- Pavullo nel Frignano (MO)
18.7 --- Scandiano (RE)
20.0 --- Maranello (MO)

Quality location estimate:
Erh: 1.1 km, Erz: 0.9 km, Nf: 20, Gap: 82°, Rms: 0.168 s
Stazioni validate: 11


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.
GSCLGU2025-09-18 00:00:55.9000.01100.200.652025-09-18 00:00:58.6800.0591-0.031.5519.5
ERBMIV2025-09-18 00:00:56.8200.01300.011.682025-09-18 00:01:00.7700.0761-0.051.4525.3
ZCCAIV2025-09-18 00:00:59.4100.01700.890.01--:---.-----.---.-- 31.9
SARMGU2025-09-18 00:00:58.5490.02000.001.642025-09-18 00:01:03.3200.1142-0.380.6937.9
VLCMN2025-09-18 00:00:58.9300.0260-0.021.612025-09-18 00:01:04.4200.12220.041.2840.6
BDIIV2025-09-18 00:00:59.4500.0230-0.350.662025-09-18 00:01:05.3820.2202-0.480.5544.6
POPMGU2025-09-18 00:01:00.3200.07210.021.492025-09-18 00:01:06.8560.14520.051.1846.9
GRAMGU2025-09-18 00:01:00.5100.0250-0.290.792025-09-18 00:01:07.8600.15020.380.4649.9
CARDGU--:---.-----.---.--2025-09-18 00:01:06.2400.4002-1.050.1350.0
CAVEIV2025-09-18 00:01:04.4800.1402-0.231.02--:---.-----.---.-- 58.0
PIIIV2025-09-18 00:01:06.3800.04100.131.132025-09-18 00:01:16.6600.2442-0.040.9481.4
GARGNI2025-09-18 00:01:16.5400.0701-0.121.09--:---.-----.---.-- 140.8


RsniPicker2 - Automatic magnitude (ML) calculation results
Station Net Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth Used
GSCL GU1.701.38e+019.5210SI
ERBM IV1.607.67e-125.3266SI
ZCCA IV1.302.43e-131.9109SI
SARM GU1.603.86e-137.9216SI
BDI IV1.401.66e-144.6186SI
POPM GU1.806.49e-146.9169SI
GRAM GU1.301.78e-149.9278SI
CARD GU1.401.10e-150.0197SI
PII IV1.303.20e-281.4187SI
GARG NI2.004.28e-2140.80SI


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.
(°)
GSCL GUHHZ3.9031e-56.8357e-60.0000e+03.2992e-65.6926e-67.6436e-65.5307e-51.9848e-58.8712e-71.0468e-719.5210
GSCL GUHHN6.9616e-51.6962e-50.0000e+07.2517e-61.1846e-51.1846e-51.0519e-45.4299e-51.5822e-62.3107e-719.5210
GSCL GUHHE6.0220e-51.3086e-50.0000e+07.2208e-61.1491e-51.5549e-51.1441e-45.6328e-51.3866e-61.8468e-719.5210
ZCCA IVHHZ7.3981e-61.4714e-60.0000e+01.0533e-61.7907e-62.4253e-61.6817e-56.0261e-65.0882e-73.2282e-831.9109
ZCCA IVHHN7.8775e-61.5849e-60.0000e+01.6091e-63.1147e-63.1147e-61.6190e-51.0081e-51.0314e-65.7060e-831.9109
ZCCA IVHHE1.0383e-51.5598e-60.0000e+01.4843e-63.1034e-64.0721e-61.6219e-58.1496e-67.5838e-75.5000e-831.9109
SARM GUEHZ8.4459e-61.8911e-60.0000e+02.0264e-63.2369e-64.2762e-62.1971e-58.4412e-65.7506e-77.1318e-837.9216
SARM GUEHN1.3376e-52.5386e-60.0000e+02.3039e-63.7721e-63.7721e-62.9885e-58.1786e-67.1759e-76.7302e-837.9216
SARM GUEHE1.1294e-53.9575e-60.0000e+02.5417e-64.5027e-65.9562e-62.4299e-51.2071e-59.3068e-71.0636e-737.9216
VLC MNHHZ5.7090e-69.9748e-70.0000e+07.6636e-71.4776e-62.0556e-61.1342e-53.5311e-64.4241e-73.7132e-840.6-1
VLC MNHHN7.7886e-61.6541e-60.0000e+01.1190e-61.9655e-61.9655e-62.1129e-55.9618e-65.1829e-76.1646e-840.6-1
VLC MNHHE1.0558e-52.3590e-60.0000e+01.8514e-63.1473e-64.1919e-63.8856e-54.9084e-61.1072e-65.9761e-840.6-1
BDI IVHHZ4.3523e-69.4557e-70.0000e+07.9902e-71.3812e-61.9070e-61.3674e-53.5524e-62.8940e-72.7640e-844.6186
BDI IVHHN9.5014e-61.8272e-60.0000e+01.3713e-62.4505e-62.4505e-62.9812e-54.2524e-65.2853e-77.4169e-844.6186
BDI IVHHE8.4415e-61.7843e-60.0000e+01.3467e-62.7509e-63.7048e-63.1737e-57.1880e-66.5138e-74.9611e-844.6186
POPM GUHHZ1.5253e-53.2332e-60.0000e+02.4877e-64.2815e-65.9069e-64.0354e-51.4594e-55.7453e-79.0548e-846.9169
POPM GUHHN2.9056e-58.2458e-60.0000e+05.8741e-61.1093e-51.1093e-56.5647e-52.1881e-51.6226e-61.8508e-746.9169
POPM GUHHE1.8381e-54.2375e-60.0000e+03.6642e-65.9102e-68.0968e-64.3111e-51.7559e-57.8474e-71.2168e-746.9169
GRAM GUHHZ3.5228e-69.0163e-70.0000e+08.1332e-71.3815e-61.8321e-68.1989e-64.8237e-63.2724e-72.9910e-849.9278
GRAM GUHHN5.0287e-61.4383e-60.0000e+01.3527e-62.3416e-62.3416e-61.2893e-57.1434e-64.1052e-74.5753e-849.9278
GRAM GUHHE7.4460e-62.0376e-60.0000e+01.7812e-63.0033e-63.9774e-61.1386e-56.5921e-66.2295e-76.0611e-849.9278
CARD GUHHZ4.5952e-67.4903e-70.0000e+04.8279e-78.9021e-71.2390e-61.8068e-51.1765e-62.0153e-71.6642e-850.0197
CARD GUHHN6.4327e-61.0931e-60.0000e+08.1829e-71.4394e-61.4394e-61.6963e-51.9872e-62.6031e-73.4261e-850.0197
CARD GUHHE8.7217e-61.8569e-60.0000e+01.3490e-62.2684e-63.1921e-63.8809e-53.2580e-63.5785e-74.3020e-850.0197
PII IVHHZ6.9384e-72.2035e-70.0000e+01.8778e-73.2369e-74.5462e-71.8269e-69.2343e-78.2122e-86.7961e-981.4187
PII IVHHN9.3092e-72.8899e-70.0000e+03.3031e-75.5072e-75.5072e-72.7982e-61.9729e-68.9677e-88.5884e-981.4187
PII IVHHE9.5757e-72.9782e-70.0000e+03.1989e-75.1913e-76.9597e-72.4196e-62.1236e-61.1385e-79.5026e-981.4187
GARG NIEHZ1.2616e-63.4839e-70.0000e+03.0005e-75.2073e-77.0171e-74.6489e-61.2239e-61.4224e-71.5932e-8140.80
GARG NIEHN4.0472e-71.2309e-70.0000e+08.3837e-82.2081e-72.2081e-79.3443e-74.2772e-71.2828e-78.0746e-9140.80
GARG NIEHE7.9719e-74.4419e-70.0000e+01.5054e-73.4218e-75.1102e-72.6137e-67.8043e-72.5796e-71.6126e-8140.80
*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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