MANUAL Location - Area: Lunigiana , magnitude (ML): 1.2
2025-05-06 10:30:06 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-05-07 06:45:05

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Earthquake info - Manual location
Event - ID :250506102854
Magnitude (ML) :1.2 +/- 0.2
Origin Time :2025-05-06 10:30:06.942 (UTC)
Location : Latitude: 44.278 N, Longitude: 10.140 E
Area :Lunigiana
Depth (km) :12.80
Distances (km) : 1.8 --- Comano
4.4 --- Fivizzano
8.2 --- Licciana Nardi
8.9 --- Casola in Lunigiana
11.3 --- Giuncugnano
12.3 --- Bagnone
13.0 --- Minucciano
13.3 --- Collagna
14.3 --- Sillano
15.0 --- Monchio delle Corti
15.1 --- Villafranca in Lunigiana
15.4 --- Aulla
15.9 --- Tresana
16.3 --- Piazza al Serchio
16.7 --- Ligonchio
17.3 --- Filattiera
17.5 --- Podenzana
17.9 --- Busana
18.1 --- Palanzano
18.4 --- Fosdinovo

Quality location estimate: Erh: 0.7 km, Erz: 0.7 km, Nf: 32, Gap: 68 °, Rms: 0.18


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.
FIVIGU2025-05-06 10:30:09.6820.02000.161.402025-05-06 10:30:11.3210.0400-0.031.6513.9
EQUIGU2025-05-06 10:30:10.5600.00700.211.152025-05-06 10:30:12.7400.0571-0.051.5518.2
AULIT2025-05-06 10:30:10.7240.02000.021.702025-05-06 10:30:12.6060.0400-0.800.2120.0
SARMGU2025-05-06 10:30:12.1250.0663-0.051.572025-05-06 10:30:15.9900.0842-0.021.5527.1
GRAMGU2025-05-06 10:30:12.1760.01500.161.412025-05-06 10:30:15.7550.07520.221.1128.0
ERBMIV2025-05-06 10:30:13.0100.01700.011.702025-05-06 10:30:17.5540.0400-0.081.4230.1
PLMAIV2025-05-06 10:30:13.6480.02000.061.662025-05-06 10:30:18.2690.1113-0.131.2236.5
GSCLGU2025-05-06 10:30:14.4800.0150-0.280.592025-05-06 10:30:19.7700.1173-0.720.2838.9
CMEIT2025-05-06 10:30:14.5180.02000.171.352025-05-06 10:30:19.2620.0400-0.440.4140.4
CARDGU2025-05-06 10:30:14.3130.02000.101.592025-05-06 10:30:19.8770.15140.420.5441.3
BVTIT2025-05-06 10:30:14.8940.0200-0.220.842025-05-06 10:30:20.3100.0400-0.640.2944.4
BDIIV2025-05-06 10:30:15.0830.0200-0.101.362025-05-06 10:30:21.2700.14240.151.2445.7
MAIMGU2025-05-06 10:30:16.3690.02000.350.512025-05-06 10:30:22.6200.18950.031.2351.0
MSSAIV2025-05-06 10:30:16.0850.0200-0.111.302025-05-06 10:30:21.9820.0400-1.120.0851.6
POPMGU2025-05-06 10:30:18.1130.02000.950.012025-05-06 10:30:25.0100.04000.450.4357.2
PIIIV2025-05-06 10:30:19.0750.0200-0.430.402025-05-06 10:30:27.7000.3778-0.950.2670.2


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
FIVI GUHN1.531.71e+013.9193
SARM GUEH0.931.54e-127.1117
GRAM GUHH1.315.32e-128.0346
ERBM IVEH0.909.90e-230.154
PLMA IVHH1.412.13e-136.5222
CARD GUHH1.391.63e-141.3136
BVT ITHN1.582.20e-144.4312
MAIM GUHH1.175.74e-251.0145
POPM GUHH0.925.89e-257.2118
PII IVHH1.112.87e-270.2153


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 GUHNZ3.6921e-44.7245e-51.3198e-53.5633e-62.0492e-68.2403e-44.0066e-54.2988e-61.0615e-613.9193
FIVI GUHNN3.7601e-45.0795e-51.1631e-53.3804e-61.9796e-65.6028e-44.2965e-54.2076e-61.1097e-613.9193
FIVI GUHNE2.4653e-43.4750e-51.4470e-53.6539e-62.3755e-65.5523e-44.1471e-53.6179e-67.2991e-713.9193
EQUI GUHHZ1.5336e-51.8293e-61.1980e-65.2563e-72.3393e-72.6354e-55.7247e-63.2437e-75.3732e-818.2175
EQUI GUHHN1.8828e-51.8699e-61.0429e-66.5710e-72.4833e-72.4054e-54.2530e-63.7196e-74.3162e-818.2175
EQUI GUHHE2.1613e-52.5429e-61.0192e-64.6467e-71.7522e-73.1267e-54.7059e-62.8342e-75.2140e-818.2175
SARM GUEHZ5.4014e-61.0118e-67.9496e-73.6981e-71.4596e-71.3930e-55.3208e-62.0691e-72.4369e-827.1117
SARM GUEHN8.9910e-62.0592e-61.2996e-66.2418e-72.7125e-72.4012e-54.9380e-63.7845e-74.8010e-827.1117
SARM GUEHE8.0136e-61.1632e-61.0087e-65.0396e-72.2283e-71.9224e-56.0683e-63.1385e-73.5666e-827.1117
GRAM GUHHZ4.2519e-56.2089e-62.2638e-66.3165e-73.6558e-77.0747e-59.8393e-65.7865e-71.2051e-728.0346
GRAM GUHHN3.9455e-56.4541e-64.8525e-61.4297e-67.2797e-71.3378e-43.0426e-51.0646e-61.7401e-728.0346
GRAM GUHHE3.1478e-55.8908e-64.0815e-61.5401e-66.6668e-76.1317e-52.5342e-58.9580e-71.3898e-728.0346
ERBM IVEHZ9.5745e-61.2261e-66.4450e-73.7091e-71.3798e-71.7518e-51.6677e-61.5621e-72.4226e-830.154
ERBM IVEHN8.2975e-61.5353e-61.0303e-63.3804e-71.2759e-72.1148e-53.6113e-61.7406e-73.4626e-830.154
ERBM IVEHE1.3276e-51.8602e-68.0991e-73.5790e-71.8500e-73.6435e-54.2486e-62.3048e-73.7444e-830.154
PLMA IVHHZ1.4866e-51.8517e-66.9636e-72.7232e-71.5058e-72.7258e-54.7380e-62.3344e-74.4751e-836.5222
PLMA IVHHN2.3955e-53.9180e-61.4499e-65.4994e-74.5777e-77.1434e-54.4967e-67.7396e-71.1036e-736.5222
PLMA IVHHE2.0396e-52.5074e-61.1388e-64.2060e-72.2017e-74.5991e-56.2505e-63.0004e-74.5628e-836.5222
GSCL GUHHZ1.6704e-63.2785e-72.4750e-71.0619e-74.6568e-84.1721e-61.2648e-66.5333e-87.7529e-938.977
GSCL GUHHN2.5419e-66.9754e-74.8705e-72.1161e-76.7668e-87.9705e-62.2332e-69.3321e-81.6536e-838.977
GSCL GUHHE1.6726e-65.8857e-74.4667e-72.0503e-78.9953e-86.1335e-62.5303e-61.0989e-71.5793e-838.977
CME ITHNZ1.4350e-52.0249e-61.4006e-65.4696e-72.6351e-72.8260e-58.0042e-63.4588e-76.1458e-840.4160
CME ITHNN3.4338e-56.5866e-64.2866e-61.3713e-65.8092e-75.5665e-52.0530e-58.2899e-71.6699e-740.4160
CME ITHNE3.1930e-54.8913e-62.2858e-67.8242e-74.2250e-77.3237e-51.1507e-57.5441e-71.1263e-740.4160
CARD GUHHZ9.5836e-61.1518e-65.1747e-71.6162e-77.3237e-82.1306e-52.1905e-61.1108e-72.4652e-841.3136
CARD GUHHN2.1115e-53.4206e-61.4783e-63.9913e-72.0618e-75.0664e-54.9591e-63.7959e-78.3107e-841.3136
CARD GUHHE1.8988e-52.5203e-61.3583e-63.8586e-71.9103e-73.6637e-53.4791e-63.3083e-75.2704e-841.3136
BVT ITHNZ4.5002e-61.1212e-68.5651e-75.2428e-72.5019e-77.1107e-65.8638e-63.8686e-72.6885e-844.4312
BVT ITHNN6.1556e-62.1851e-61.7062e-67.4443e-73.5180e-71.7008e-51.4599e-54.8621e-76.3854e-844.4312
BVT ITHNE8.3301e-61.8300e-61.2236e-65.7522e-72.5524e-72.3215e-55.3072e-63.4254e-74.3725e-844.4312
BDI IVHHZ3.9489e-65.1892e-72.5715e-77.3331e-83.7757e-81.3569e-51.9762e-66.9345e-81.2142e-845.7123
BDI IVHHN5.2560e-68.0303e-74.8598e-71.6892e-78.2247e-81.8198e-52.3110e-61.3601e-72.0230e-845.7123
BDI IVHHE5.8114e-68.4199e-74.2447e-71.2392e-76.5837e-82.0161e-51.8877e-61.0936e-72.1825e-845.7123
MAIM GUHHZ4.0440e-65.5200e-72.8758e-71.4183e-76.1547e-86.7489e-61.1321e-68.9539e-81.0740e-851.0145
MAIM GUHHN4.4271e-67.6706e-74.9724e-72.3925e-78.6741e-81.0280e-52.9725e-61.0234e-71.5428e-851.0145
MAIM GUHHE4.0721e-66.5943e-75.4948e-72.3903e-71.0370e-78.3724e-63.6876e-61.4109e-71.7288e-851.0145
MSSA IVHHZ1.3445e-62.4755e-71.3878e-75.3753e-84.8552e-83.9521e-68.5967e-78.9248e-87.3433e-951.6275
MSSA IVHHN1.7217e-62.5468e-71.9715e-77.2915e-85.1216e-84.8239e-61.1448e-67.0441e-87.7809e-951.6275
MSSA IVHHE1.7940e-62.6179e-71.9269e-79.3948e-85.9790e-84.3176e-61.1532e-69.6093e-87.5988e-951.6275
POPM GUHHZ3.4125e-64.3396e-72.5664e-78.4083e-84.2630e-89.6995e-61.1327e-67.1427e-81.2708e-857.2118
POPM GUHHN4.2736e-68.0712e-75.4186e-71.3455e-76.5311e-81.2067e-52.8704e-61.0779e-71.8299e-857.2118
POPM GUHHE4.7054e-68.1500e-75.6272e-71.4957e-79.2402e-81.1905e-52.7615e-61.4400e-72.7328e-857.2118
PII IVHHZ2.1811e-63.0907e-72.5922e-78.6498e-83.7229e-85.0098e-61.4604e-65.5556e-88.2749e-970.2153
PII IVHHN2.2130e-64.0500e-72.8551e-79.7536e-83.9560e-85.1702e-61.8939e-65.1747e-89.8460e-970.2153
PII IVHHE2.8061e-64.0302e-72.6214e-78.9606e-84.3193e-81.0931e-51.4296e-66.6278e-88.3195e-970.2153
*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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