MANUAL Location - Area: Frignano , magnitude (ML): 1.1
2025-02-17 23:53:18 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-02-18 10:08:52

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Earthquake info - Manual location
Event - ID :250217235251
Magnitude (ML) :1.1 +/- 0.2
Origin Time :2025-02-17 23:53:18.265 (UTC)
Location : Latitude: 44.247 N, Longitude: 10.603 E
Area :Frignano
Depth (km) :13.77
Distances (km) : 4.4 --- Riolunato
4.7 --- Pievepelago
6.0 --- Frassinoro
8.2 --- Fiumalbo
9.2 --- Palagano
9.2 --- Montecreto
12.2 --- Montefiorino
12.3 --- Abetone
12.4 --- Lama Mocogno
13.6 --- Sestola
14.6 --- Polinago
14.9 --- Toano
15.9 --- Fanano
17.0 --- Villa Minozzo
18.3 --- Fosciandora
18.7 --- Castiglione di Garfagnana
19.0 --- Villa Collemandina
19.7 --- Pieve Fosciana
20.4 --- Cutigliano
20.9 --- Pavullo nel Frignano

Quality location estimate: Erh: 0.4 km, Erz: 0.4 km, Nf: 28, Gap: 82 °, Rms: 0.12


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.
GSCLGU2025-02-17 23:53:20.6300.0090-1.570.012025-02-17 23:53:22.0870.0400-3.010.0018.5
SARMGU2025-02-17 23:53:22.4800.0120-0.021.632025-02-17 23:53:25.1960.0681-0.450.1223.0
VLCMN2025-02-17 23:53:22.8800.02000.141.252025-02-17 23:53:25.9600.0400-0.091.3324.5
BDIIV2025-02-17 23:53:22.9900.01300.051.652025-02-17 23:53:26.4000.0752-0.011.5225.2
ERBMIV2025-02-17 23:53:23.1190.0200-1.080.022025-02-17 23:53:26.8990.0400-1.880.0128.5
POPMGU2025-02-17 23:53:23.8800.01500.151.212025-02-17 23:53:27.7890.0882-0.041.4029.3
CARDGU2025-02-17 23:53:23.8310.01500.091.552025-02-17 23:53:27.8400.09020.051.4429.9
ZCCAIV2025-02-17 23:53:25.6300.0180-0.061.482025-02-17 23:53:31.6890.04000.310.5135.0
FIVIGU2025-02-17 23:53:25.4410.0200-0.041.552025-02-17 23:53:30.7540.04000.121.2840.4
MAIMGU2025-02-17 23:53:25.5900.0251-0.021.622025-02-17 23:53:30.9630.1524-0.011.2040.7
CMEIT2025-02-17 23:53:25.7180.0200-0.230.622025-02-17 23:53:31.6820.04000.171.0942.9
GRAMGU2025-02-17 23:53:27.6600.0261-0.131.142025-02-17 23:53:34.6900.15740.190.9052.6
PIIIV2025-02-17 23:53:29.0400.0311-0.220.752025-02-17 23:53:36.3840.0400-0.730.0760.3
PLMAIV2025-02-17 23:53:29.8500.03310.081.442025-02-17 23:53:37.8930.0400-0.001.2065.1


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
SARM GUEH1.012.50e-123.0246
VLC MNHH0.859.19e-224.5241
BDI IVHH1.193.39e-125.2181
POPM GUHH1.143.65e-129.3151
CARD GUHH1.242.18e-129.9201
ZCCA IVHH0.968.44e-235.069
FIVI GUHN1.371.64e-140.4269
MAIM GUHH0.743.41e-240.7193
CME ITHN1.148.52e-242.9217
GRAM GUHH1.231.27e-152.6303
PII IVHH1.204.91e-260.3186
PLMA IVHH0.821.70e-265.1250


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 GUHHZ4.2516e-56.6514e-62.8847e-61.0878e-64.7668e-71.6980e-41.3652e-57.3783e-71.5871e-718.5354
GSCL GUHHN1.4488e-43.0461e-51.1146e-53.6146e-62.3039e-62.8866e-45.2797e-53.7395e-67.0755e-718.5354
GSCL GUHHE1.2651e-42.4220e-51.0199e-54.9165e-62.4985e-63.4116e-46.0817e-54.0041e-66.4941e-718.5354
SARM GUEHZ3.8593e-53.8478e-61.5953e-65.3467e-73.1427e-73.2324e-56.2562e-64.7860e-77.6172e-823.0246
SARM GUEHN2.8597e-53.7924e-61.1010e-65.1194e-72.0762e-77.5630e-54.3162e-63.4263e-78.0448e-823.0246
SARM GUEHE2.9375e-53.4227e-61.6735e-66.6474e-73.7382e-74.8786e-58.0451e-65.8677e-78.5794e-823.0246
VLC MNHHZ2.4856e-53.1076e-65.5168e-71.6513e-79.7093e-81.7960e-51.7050e-61.4699e-73.4609e-824.5241
VLC MNHHN1.3885e-51.3178e-65.2834e-72.2717e-71.1194e-71.9873e-51.7216e-61.7026e-72.4589e-824.5241
VLC MNHHE1.2194e-51.8376e-68.5075e-72.5386e-71.3151e-73.0922e-53.5029e-62.0111e-74.2641e-824.5241
BDI IVHHZ2.0474e-53.1131e-61.9999e-66.4414e-73.4424e-74.4703e-51.4648e-54.7063e-76.6489e-825.2181
BDI IVHHN2.6415e-54.5008e-62.8508e-68.6551e-74.7494e-78.2152e-51.2270e-57.5590e-71.1810e-725.2181
BDI IVHHE3.6129e-54.7679e-62.5363e-67.6073e-75.3085e-77.0860e-51.6529e-58.2078e-71.2252e-725.2181
ERBM IVEHZ3.8300e-65.4028e-72.3707e-71.6727e-71.1429e-79.9110e-69.8229e-71.4623e-71.0977e-828.5322
ERBM IVEHN3.9731e-65.9548e-73.5049e-71.2008e-75.9551e-89.5881e-61.4542e-68.7048e-81.2774e-828.5322
ERBM IVEHE3.7161e-65.9414e-73.1549e-71.2245e-76.6448e-81.2133e-51.4715e-68.9181e-81.3680e-828.5322
POPM GUHHZ1.8947e-52.5926e-61.6412e-67.0070e-73.0657e-75.2705e-51.1372e-54.5313e-77.2375e-829.3151
POPM GUHHN2.3639e-54.4554e-62.9250e-68.8901e-74.3219e-76.0304e-51.2513e-56.0398e-79.5179e-829.3151
POPM GUHHE2.1935e-54.4171e-63.2028e-61.0851e-64.6779e-75.1274e-51.9075e-56.6704e-71.0363e-729.3151
CARD GUHHZ2.6387e-53.3122e-65.7402e-71.6683e-79.5775e-84.1849e-53.0176e-61.5490e-73.4124e-829.9201
CARD GUHHN3.0525e-53.4359e-61.0455e-62.4184e-71.4574e-76.4346e-53.0756e-62.8848e-75.2171e-829.9201
CARD GUHHE3.2767e-54.3675e-61.8926e-64.2411e-72.1843e-71.0967e-46.1581e-64.0361e-78.8633e-829.9201
ZCCA IVHHZ2.1662e-63.4355e-73.9592e-71.9612e-78.4696e-86.2871e-63.1285e-69.4444e-89.8872e-935.069
ZCCA IVHHN2.0172e-64.3512e-75.2422e-74.1177e-71.2077e-75.4066e-62.7559e-61.4560e-71.8323e-835.069
ZCCA IVHHE1.3343e-64.9848e-76.2024e-75.6839e-72.1678e-72.9985e-63.7421e-62.5605e-72.2730e-835.069
FIVI GUHNZ1.9733e-52.5236e-61.3075e-62.8760e-71.5988e-73.1466e-53.9737e-62.5840e-75.1137e-840.4269
FIVI GUHNN1.0556e-52.5860e-61.4312e-64.1756e-71.9909e-72.1422e-54.8755e-63.4971e-76.3158e-840.4269
FIVI GUHNE1.2079e-51.3083e-68.5394e-72.6706e-71.4451e-71.7921e-53.8826e-62.6396e-73.4192e-840.4269
MAIM GUHHZ2.1245e-62.9594e-71.5762e-76.4729e-83.5959e-85.0656e-66.7386e-74.4770e-86.5391e-940.7193
MAIM GUHHN4.1128e-66.0542e-73.1264e-71.2583e-75.6544e-87.9796e-61.6873e-69.0726e-81.4364e-840.7193
MAIM GUHHE3.3182e-64.7931e-72.2775e-71.1421e-74.3103e-86.1924e-61.0641e-65.8407e-81.3038e-840.7193
CME ITHNZ3.3755e-65.3157e-73.9007e-72.4568e-71.5273e-79.4324e-62.0379e-62.5930e-71.5662e-842.9217
CME ITHNN4.6524e-61.1311e-67.5390e-73.5404e-72.1294e-71.1426e-53.1604e-63.5984e-72.8911e-842.9217
CME ITHNE5.4129e-69.6466e-75.9638e-72.5641e-71.7847e-71.0521e-53.2266e-62.5179e-72.1587e-842.9217
GRAM GUHHZ3.2725e-63.9512e-73.1753e-79.3176e-83.9247e-86.1069e-61.7871e-65.6127e-89.4491e-952.6303
GRAM GUHHN3.1974e-68.9989e-77.4243e-72.1869e-71.0096e-71.2718e-56.0358e-61.5058e-71.9358e-852.6303
GRAM GUHHE3.6822e-61.3139e-61.1068e-63.7060e-71.7497e-75.8726e-61.0602e-52.5180e-73.2397e-852.6303
PII IVHHZ2.1433e-63.4392e-72.2502e-75.9231e-83.3168e-85.2115e-61.3343e-65.4510e-88.7971e-960.3186
PII IVHHN1.8417e-63.5603e-72.6465e-71.0269e-74.7341e-85.5539e-69.9148e-76.7106e-89.0663e-960.3186
PII IVHHE2.3527e-66.0909e-74.2644e-71.2551e-76.2918e-86.2662e-63.6245e-69.1753e-81.4656e-860.3186
PLMA IVHHZ9.4802e-72.5612e-78.9207e-81.1143e-72.4444e-71.8338e-64.2592e-75.1962e-74.0948e-865.1250
PLMA IVHHN1.1505e-61.9159e-71.5021e-79.4549e-86.2371e-83.8924e-68.2588e-71.1064e-76.1653e-965.1250
PLMA IVHHE1.3258e-61.5527e-79.3782e-88.2759e-85.4555e-82.2199e-64.1408e-78.7827e-86.9076e-965.1250
*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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