MANUAL Location - Area: Frignano , magnitude (ML): 1.0
2025-10-16 02:17:28 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-10-16 08:43:04

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Earthquake info - Manual location
Event - ID :251016021705
Magnitude (ML) :1.0 +/- 0.2
Origin Time :2025-10-16 02:17:28.708 (UTC)
Location : Latitude: 44.338 N, Longitude: 10.198 E
Area :Frignano
Depth (km) :18.10
Distances (km) : 6.3 --- Collagna
7.5 --- Comano
10.2 --- Monchio delle Corti
10.6 --- Ramiseto
10.7 --- Busana
11.0 --- Palanzano
11.8 --- Ligonchio
12.4 --- Fivizzano
14.6 --- Giuncugnano
14.9 --- Licciana Nardi
15.2 --- Sillano
15.2 --- Casola in Lunigiana
16.3 --- Bagnone
17.6 --- Corniglio
18.5 --- Minucciano
18.8 --- Piazza al Serchio
19.5 --- Castelnovo ne Monti
19.8 --- Vetto
20.2 --- Villafranca in Lunigiana
20.4 --- Tizzano Val Parma

Quality location estimate: Erh: 0.6 km, Erz: 0.6 km, Nf: 32, Gap: 94 °, Rms: 0.14


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.
FIVIGU2025-10-16 02:17:32.6970.02000.031.682025-10-16 02:17:35.4130.0400-0.081.4622.2
EQUIGU2025-10-16 02:17:33.4370.0200-0.021.752025-10-16 02:17:36.9600.08220.101.2026.8
ERBMIV2025-10-16 02:17:34.0300.0150-0.041.692025-10-16 02:17:37.8450.0842-0.360.5027.1
GRAMGU2025-10-16 02:17:33.5700.01500.021.722025-10-16 02:17:37.0000.0822-0.011.4527.5
SARMGU2025-10-16 02:17:34.2500.01700.031.682025-10-16 02:17:38.2800.09120.061.3030.4
VLCMN2025-10-16 02:17:34.5000.01800.300.482025-10-16 02:17:38.5770.09920.420.3931.1
GSCLGU2025-10-16 02:17:35.6300.0291-0.280.612025-10-16 02:17:40.7000.1083-0.420.4336.3
CARDGU2025-10-16 02:17:36.4770.0200-0.151.102025-10-16 02:17:42.2700.13740.021.1845.4
PLMAIV2025-10-16 02:17:36.7900.03910.011.562025-10-16 02:17:42.2880.1795-0.300.7345.9
CMEIT2025-10-16 02:17:37.0650.0200-0.051.552025-10-16 02:17:42.7820.0400-0.290.7047.2
BDIIV2025-10-16 02:17:37.3400.02610.121.102025-10-16 02:17:43.2900.14540.031.1448.1
MAIMGU2025-10-16 02:17:38.9860.02000.420.372025-10-16 02:17:45.4900.1865-0.061.0455.8
MSSAIV2025-10-16 02:17:38.7300.0301-0.111.292025-10-16 02:17:45.4240.2116-0.960.0857.4
POPMGU2025-10-16 02:17:39.4500.03010.370.452025-10-16 02:17:46.2100.2016-0.220.8558.3
PIIIV2025-10-16 02:17:42.1800.03910.031.332025-10-16 02:17:50.6600.2286-1.040.0875.5
RNCAGU2025-10-16 02:17:46.1150.02000.390.482025-10-16 02:17:57.1400.4449-0.240.61101.7


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
ERBM IVEH0.901.19e-127.162
GRAM GUHH1.447.38e-127.5328
SARM GUEH1.001.46e-130.4137
VLC MNHH1.091.01e-131.1143
GSCL GUHH1.151.23e-136.387
CARD GUHH0.934.77e-245.4147
PLMA IVHH0.813.44e-245.9221
CME ITHN1.279.66e-247.2169
BDI IVHH0.682.95e-248.1134
MAIM GUHH0.681.54e-255.8154
MSSA IVHH0.671.59e-257.4268
POPM GUHH0.592.66e-258.3126
PII IVHH1.052.15e-275.5159
RNCA GUHH1.141.32e-2101.7279


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.
(°)
FIVI GUHNZ6.6015e-57.5716e-63.2720e-67.6822e-74.9964e-77.8923e-59.8838e-69.1707e-71.5702e-722.2207
FIVI GUHNN5.2341e-51.0199e-56.8456e-61.8486e-69.0068e-78.3639e-52.9744e-51.4727e-62.7335e-722.2207
FIVI GUHNE2.3988e-54.3946e-63.0180e-68.9791e-74.9081e-76.4453e-51.0815e-56.5805e-71.1068e-722.2207
EQUI GUHHZ3.9818e-65.9086e-74.2385e-71.6263e-78.0849e-85.1047e-63.3929e-61.2100e-71.4757e-826.8191
EQUI GUHHN4.2458e-65.9304e-73.5692e-71.6619e-78.6813e-89.9946e-62.3601e-61.2120e-71.5222e-826.8191
EQUI GUHHE4.2949e-64.4916e-72.9970e-72.0255e-71.0497e-75.6738e-61.7338e-61.2219e-71.0607e-826.8191
ERBM IVEHZ5.4032e-69.8808e-73.6785e-72.2615e-71.0994e-71.8974e-51.5318e-61.3129e-71.7846e-827.162
ERBM IVEHN7.9048e-61.6943e-68.7431e-73.4821e-71.9142e-71.9291e-53.4227e-62.6969e-74.3804e-827.162
ERBM IVEHE7.7739e-61.2748e-66.9137e-73.5539e-72.5436e-72.9417e-53.1667e-63.3597e-72.9668e-827.162
GRAM GUHHZ1.1675e-41.1359e-53.2554e-67.0723e-73.8283e-76.8392e-58.9465e-66.7400e-71.5484e-727.5328
GRAM GUHHN6.5518e-51.3473e-57.2586e-61.4542e-67.6649e-72.3549e-42.6044e-51.2909e-62.8879e-727.5328
GRAM GUHHE5.0210e-51.0938e-56.8179e-62.1082e-61.0298e-61.4360e-44.4451e-51.5847e-62.8200e-727.5328
SARM GUEHZ2.2120e-65.3399e-74.2548e-72.0232e-78.3299e-89.7526e-62.4917e-61.1554e-71.6995e-830.4137
SARM GUEHN5.2440e-61.5325e-61.2210e-65.2830e-72.2381e-71.3786e-58.0765e-63.1403e-74.5865e-830.4137
SARM GUEHE3.8914e-68.3515e-76.6336e-73.3954e-71.5868e-71.2609e-53.3615e-62.3587e-73.0045e-830.4137
VLC MNHHZ3.5436e-66.3335e-73.3047e-79.4495e-85.3374e-84.3232e-61.6733e-67.6568e-81.3611e-831.1143
VLC MNHHN7.6597e-61.7161e-67.6451e-72.1588e-71.3558e-72.2391e-53.4211e-62.1047e-73.5706e-831.1143
VLC MNHHE3.8548e-66.5000e-75.8664e-71.6747e-78.7098e-88.6337e-62.3721e-61.2207e-71.6046e-831.1143
GSCL GUHHZ1.8677e-64.4716e-72.7559e-71.0202e-75.3454e-84.3372e-61.5781e-68.3092e-81.2326e-836.387
GSCL GUHHN3.8876e-61.0571e-69.2618e-73.8587e-71.8504e-79.9948e-66.6519e-62.6560e-73.4043e-836.387
GSCL GUHHE3.2519e-68.9774e-77.6832e-72.7851e-71.3549e-75.9699e-65.2979e-61.9421e-72.7486e-836.387
CARD GUHHZ3.2049e-64.1682e-72.0048e-75.7730e-82.8884e-87.2441e-67.7836e-75.0324e-89.0747e-945.4147
CARD GUHHN5.6092e-67.3963e-74.3961e-71.1566e-78.7962e-81.3973e-51.3011e-61.3358e-72.1648e-845.4147
CARD GUHHE5.1105e-67.9440e-74.7501e-71.1849e-75.7003e-81.8150e-52.1962e-68.9852e-81.7709e-845.4147
PLMA IVHHZ2.4508e-63.9095e-72.2627e-79.2654e-85.1293e-87.4614e-61.6111e-69.9891e-81.0215e-845.9221
PLMA IVHHN3.7926e-65.7294e-73.5766e-71.0301e-76.5309e-81.4690e-51.5177e-61.0990e-71.1275e-845.9221
PLMA IVHHE3.9924e-65.3062e-72.9074e-71.2299e-76.6272e-81.1396e-51.1824e-68.5879e-81.1976e-845.9221
CME ITHNZ4.9649e-67.2509e-75.3529e-73.2808e-72.0172e-71.1711e-52.3740e-63.6080e-72.2437e-847.2169
CME ITHNN5.7403e-61.2153e-61.0346e-63.8735e-72.2726e-71.7557e-55.8851e-63.0002e-73.4396e-847.2169
CME ITHNE7.0606e-61.0704e-67.7572e-73.4317e-72.2602e-72.1219e-53.7687e-62.4875e-72.5861e-847.2169
BDI IVHHZ1.2713e-61.9882e-71.5011e-75.4211e-82.3307e-84.0289e-68.2334e-73.4564e-85.0033e-948.1134
BDI IVHHN2.2755e-64.4264e-73.1327e-71.0140e-74.6004e-86.0423e-62.2717e-67.1579e-81.0618e-848.1134
BDI IVHHE1.8528e-63.0357e-71.9108e-78.5085e-83.2295e-86.2936e-68.6929e-74.3061e-86.9229e-948.1134
MAIM GUHHZ7.3424e-71.0347e-78.6755e-83.8318e-82.1325e-82.1230e-63.0511e-73.0471e-82.6940e-955.8154
MAIM GUHHN1.2330e-62.1631e-71.3841e-76.6290e-83.4195e-82.8014e-65.4255e-73.7703e-84.7157e-955.8154
MAIM GUHHE1.1115e-62.0135e-71.4543e-75.5461e-82.4263e-83.4414e-65.7813e-73.4747e-85.6253e-955.8154
MSSA IVHHZ6.8161e-71.2040e-78.1049e-84.2382e-82.8821e-82.3006e-62.9623e-73.9543e-83.3395e-957.4268
MSSA IVHHN8.5068e-71.7427e-71.3009e-75.6919e-83.3753e-82.5202e-65.0006e-76.0977e-84.6769e-957.4268
MSSA IVHHE8.0502e-71.6470e-71.3928e-76.3453e-82.8329e-82.7908e-65.7651e-73.7548e-85.4123e-957.4268
POPM GUHHZ1.1434e-62.2948e-71.8259e-76.1029e-82.8756e-83.2595e-61.0162e-64.2165e-86.8882e-958.3126
POPM GUHHN1.5875e-63.3276e-72.8171e-79.9899e-84.5824e-84.1543e-61.5116e-66.3264e-88.2765e-958.3126
POPM GUHHE1.4126e-63.2681e-72.9670e-79.4972e-84.5858e-83.5631e-61.4181e-66.2296e-88.4183e-958.3126
PII IVHHZ6.3203e-71.7185e-71.4682e-76.2602e-82.8033e-82.1554e-61.1497e-64.0799e-85.0793e-975.5159
PII IVHHN7.1839e-72.3946e-71.8037e-78.0636e-83.5822e-83.0655e-61.1415e-64.4582e-86.3954e-975.5159
PII IVHHE1.0392e-62.4445e-71.6418e-76.7073e-82.9441e-84.4101e-69.7466e-74.1682e-86.7064e-975.5159
RNCA GUHHZ5.4590e-71.1331e-78.3940e-84.6648e-82.9578e-81.9008e-63.6782e-73.2531e-83.7967e-9101.7279
RNCA GUHHN4.4585e-71.1793e-71.0922e-74.5912e-82.3917e-81.4076e-64.3163e-73.8508e-83.5201e-9101.7279
RNCA GUHHE7.8513e-71.9675e-71.3002e-75.5280e-82.7807e-82.4888e-64.7437e-73.8962e-84.2139e-9101.7279
*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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