MANUAL Location - Area: Lunigiana , magnitude (ML): 1.3
2026-02-02 15:35:33 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2026-02-03 08:11:53

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Earthquake info - Manual location
Event - ID :260202153506
Magnitude (ML) :1.3 +/- 0.2
Origin Time :2026-02-02 15:35:33.103 (UTC)
Location : Latitude: 44.100 N, Longitude: 9.980 E
Area :Lunigiana
Depth (km) :6.01
Distances (km) : 2.0 --- Sarzana
3.0 --- Castelnuovo Magra
3.9 --- Ameglia
5.1 --- Fosdinovo
5.3 --- Ortonovo
5.9 --- Arcola
6.0 --- Lerici
8.5 --- Santo Stefano di Magra
8.6 --- Carrara
9.0 --- Vezzano Ligure
11.8 --- Follo
12.0 --- Bolano
12.3 --- Portovenere
12.5 --- Podenzana
12.7 --- Aulla
12.9 --- La Spezia
14.1 --- Massa
16.1 --- Tresana
18.0 --- Montignoso
18.3 --- Ricco del Golfo di Spezia

Quality location estimate: Erh: 0.6 km, Erz: 0.5 km, Nf: 40, Gap: 107 °, Rms: 0.23


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.
PLMAIV2026-02-02 15:35:35.9020.02000.001.902026-02-02 15:35:37.5900.0400-0.340.6513.0
AULIT2026-02-02 15:35:36.0230.02000.180.982026-02-02 15:35:37.8270.04000.021.8613.5
EQUIGU2026-02-02 15:35:36.6500.0050-0.021.872026-02-02 15:35:38.7240.0421-0.520.6416.8
FIVIGU2026-02-02 15:35:37.3200.02000.131.322026-02-02 15:35:39.9700.0400-0.161.0720.4
CMEIT2026-02-02 15:35:39.1170.02000.001.862026-02-02 15:35:43.0180.0400-0.560.6231.0
VLCMN2026-02-02 15:35:39.6200.01400.420.652026-02-02 15:35:43.7470.10020.021.5133.7
CARIT2026-02-02 15:35:39.2930.0200-0.011.832026-02-02 15:35:43.3940.0400-0.480.6933.7
SARMGU2026-02-02 15:35:39.8800.01400.061.742026-02-02 15:35:44.2300.0922-0.600.5735.5
CARDGU2026-02-02 15:35:40.8200.01800.430.642026-02-02 15:35:45.7100.1123-0.091.3541.4
VRLIT2026-02-02 15:35:40.9830.0200-0.171.052026-02-02 15:35:46.3640.0400-0.760.3443.1
GRAMGU2026-02-02 15:35:41.5400.02010.460.602026-02-02 15:35:47.6110.04001.020.1244.4
MSSAIV2026-02-02 15:35:41.2200.0241-0.031.722026-02-02 15:35:47.4400.54690.040.8344.6
MAIMGU2026-02-02 15:35:41.7400.02110.220.892026-02-02 15:35:46.8300.1293-0.980.1446.3
ERBMIV2026-02-02 15:35:42.7300.02210.151.242026-02-02 15:35:49.6310.1002-0.051.3549.9
BVTIT2026-02-02 15:35:42.4920.0200-0.250.862026-02-02 15:35:49.2670.0400-0.500.6851.9
GSCLGU2026-02-02 15:35:43.7800.02510.041.642026-02-02 15:35:51.0200.1554-0.630.5456.2
PIIIV2026-02-02 15:35:43.9660.0200-0.021.632026-02-02 15:35:51.7620.0400-0.350.8860.9
POPMGU2026-02-02 15:35:44.4000.02910.460.572026-02-02 15:35:52.0800.2496-0.011.1462.7
GORRGU2026-02-02 15:35:47.1880.02000.430.622026-02-02 15:35:57.2400.3077-0.101.0278.8
RNCAGU2026-02-02 15:35:49.9430.02001.110.102026-02-02 15:36:00.7500.04000.790.2691.9


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
PLMA IVHH1.562.05e+013.0241
FIVI GUHN1.173.80e-120.437
CME ITHN1.574.31e-131.0122
VLC MNHH1.381.71e-133.778
CAR ITHN1.201.58e-133.7300
SARM GUEH1.001.09e-135.574
CARD GUHH1.542.29e-141.4101
MSSA IVHH0.854.10e-244.6303
MAIM GUHH1.106.05e-246.3117
ERBM IVEH1.341.01e-149.944
BVT ITHN1.551.52e-151.9339
PII IVHH1.225.10e-260.9134
POPM GUHH1.421.53e-162.795
GORR GUHH1.566.24e-278.8316
RNCA GUHH1.675.68e-291.9297


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.
(°)
PLMA IVHHZ2.2254e-42.0834e-54.6758e-61.3284e-67.1141e-72.3061e-41.5097e-51.5047e-64.1753e-713.0241
PLMA IVHHN4.1190e-45.3408e-51.5668e-54.0831e-62.0314e-67.1515e-46.7544e-53.7307e-69.4881e-713.0241
PLMA IVHHE6.1435e-46.1547e-51.2040e-53.4132e-62.1771e-69.8223e-44.0126e-54.3655e-61.1595e-613.0241
EQUI GUHHZ4.6103e-55.1878e-61.3176e-64.6510e-72.2905e-74.1913e-57.1105e-63.9879e-77.2777e-816.862
EQUI GUHHN5.4037e-55.5759e-62.3485e-67.8634e-74.0067e-75.7003e-51.2818e-55.8950e-71.2242e-716.862
EQUI GUHHE6.0074e-56.0232e-61.7627e-64.1633e-72.6614e-71.0753e-46.7945e-65.2483e-71.2838e-716.862
FIVI GUHNZ8.6024e-57.5308e-62.7998e-67.7809e-76.3522e-71.0107e-48.7211e-61.1379e-61.7305e-720.437
FIVI GUHNN5.5632e-57.1987e-63.8369e-61.0518e-64.4421e-77.9495e-51.3688e-56.6936e-71.6204e-720.437
FIVI GUHNE4.6503e-56.3098e-62.8350e-67.4433e-74.9509e-71.2607e-42.0544e-58.3006e-71.4259e-720.437
CME ITHNZ3.8866e-54.9037e-62.0083e-65.8268e-73.1310e-76.4114e-58.4311e-65.1105e-71.0641e-731.0122
CME ITHNN6.5067e-58.1039e-63.5234e-61.0871e-65.1130e-71.1906e-41.6226e-58.5874e-72.0000e-731.0122
CME ITHNE6.9618e-58.4576e-63.5013e-61.0460e-65.6957e-71.4662e-41.9031e-59.4306e-71.4835e-731.0122
VLC MNHHZ2.0148e-52.1576e-67.3533e-72.1678e-71.0408e-72.7223e-53.0246e-61.7785e-74.4667e-833.778
VLC MNHHN3.4510e-53.7906e-61.1036e-63.4983e-71.8882e-77.9070e-53.3835e-63.6874e-78.6317e-833.778
VLC MNHHE2.6638e-52.9247e-61.2188e-63.2810e-72.2083e-77.2888e-55.1900e-63.7121e-77.1714e-833.778
CAR ITHNZ1.0963e-51.3221e-69.7953e-74.4727e-72.2321e-71.9643e-56.7915e-63.0623e-73.3124e-833.7300
CAR ITHNN1.7469e-52.5258e-61.3859e-65.8525e-72.5785e-74.0529e-57.9015e-63.7147e-76.4076e-833.7300
CAR ITHNE1.5950e-51.7181e-61.6181e-66.8226e-72.8951e-74.0977e-59.8183e-64.0890e-75.0749e-833.7300
SARM GUEHZ1.0782e-51.3153e-65.7781e-72.1431e-71.0680e-72.1150e-53.2656e-61.5968e-72.5754e-835.574
SARM GUEHN1.4973e-51.7399e-69.6374e-73.9517e-71.8015e-72.6774e-55.2352e-62.4248e-73.5234e-835.574
SARM GUEHE1.4638e-51.4064e-66.4629e-73.1572e-71.3886e-72.6672e-53.8041e-62.1064e-72.8557e-835.574
CARD GUHHZ2.8332e-52.7925e-67.2225e-72.0164e-71.2037e-74.5378e-52.9972e-62.2070e-75.7224e-841.4101
CARD GUHHN6.1953e-56.3546e-61.8005e-64.3150e-72.5044e-71.0485e-46.2969e-64.8015e-71.2042e-741.4101
CARD GUHHE5.6869e-55.7039e-61.9964e-64.5260e-72.7431e-76.5495e-55.5249e-64.7193e-71.1108e-741.4101
MSSA IVHHZ4.1140e-65.4278e-72.4322e-71.0878e-78.2230e-81.1755e-51.0794e-61.1859e-71.1014e-844.6303
MSSA IVHHN3.8759e-66.7125e-73.7564e-71.3242e-77.5553e-81.3063e-51.4264e-61.0744e-71.7115e-844.6303
MSSA IVHHE3.3058e-65.7123e-73.5532e-71.1889e-77.5137e-87.7143e-61.5872e-61.1595e-71.3692e-844.6303
MAIM GUHHZ5.1175e-66.4652e-73.2424e-71.1199e-74.6149e-81.2503e-51.9700e-66.8971e-81.4627e-846.3117
MAIM GUHHN9.2183e-61.3066e-66.5611e-71.9091e-78.6790e-81.3372e-52.7997e-61.3501e-72.4286e-846.3117
MAIM GUHHE6.3166e-68.5165e-75.2889e-71.7943e-79.1842e-81.3927e-52.8440e-61.3673e-72.1479e-846.3117
ERBM IVEHZ3.4526e-65.2279e-73.4558e-71.6362e-76.2501e-81.4583e-51.0702e-68.9141e-81.4592e-849.944
ERBM IVEHN4.3353e-61.2851e-68.6849e-72.4390e-71.2580e-71.5989e-54.0569e-61.7985e-73.4784e-849.944
ERBM IVEHE5.6701e-61.2754e-67.0868e-72.5786e-71.0921e-72.0954e-53.3253e-61.5299e-72.8324e-849.944
BVT ITHNZ6.7069e-68.0449e-75.7567e-73.2078e-71.9637e-71.2910e-54.3076e-62.5154e-72.6420e-851.9339
BVT ITHNN7.9929e-61.1391e-69.8989e-74.7037e-72.3039e-72.7426e-55.4184e-63.3288e-72.9481e-851.9339
BVT ITHNE9.0988e-61.5214e-61.4841e-65.5903e-72.3810e-72.1173e-57.8654e-62.8995e-73.9487e-851.9339
GSCL GUHHZ2.2317e-65.2287e-74.8685e-71.4881e-77.2950e-87.8386e-64.0185e-61.1245e-71.3602e-856.260
GSCL GUHHN4.5024e-61.4252e-61.3592e-64.8385e-72.8788e-71.0592e-58.4471e-64.7024e-73.9530e-856.260
GSCL GUHHE7.6065e-62.2970e-61.7283e-65.5146e-72.7752e-71.2684e-51.0142e-53.9949e-76.0313e-856.260
PII IVHHZ3.4454e-64.5789e-73.6861e-71.9082e-77.7025e-87.7702e-61.6131e-61.0701e-71.4068e-860.9134
PII IVHHN3.9593e-66.0665e-74.2671e-71.8060e-77.8361e-87.7159e-62.4351e-69.9085e-81.5559e-860.9134
PII IVHHE3.7893e-66.6275e-74.9574e-72.4561e-78.8319e-81.2376e-51.6611e-61.1671e-71.3944e-860.9134
POPM GUHHZ9.3883e-61.3784e-65.7042e-71.7498e-79.3544e-82.3149e-52.5468e-61.6654e-73.2816e-862.795
POPM GUHHN1.5436e-52.4348e-61.3218e-62.9678e-71.5939e-72.9080e-56.1098e-62.8717e-75.6500e-862.795
POPM GUHHE1.0827e-51.7745e-61.2738e-63.3847e-71.5567e-72.5722e-55.6943e-62.5192e-74.0435e-862.795
GORR GUHHZ3.2961e-68.4194e-74.9657e-71.7337e-79.4088e-81.0930e-53.0295e-61.3209e-71.9415e-878.8316
GORR GUHHN3.3469e-66.5370e-76.0322e-72.2575e-79.8647e-89.3322e-63.2811e-61.2224e-71.8467e-878.8316
GORR GUHHE3.5859e-66.3488e-75.0812e-71.8246e-77.9279e-89.3728e-62.6790e-61.0911e-71.6423e-878.8316
RNCA GUHHZ2.2763e-64.3693e-72.6993e-79.5564e-85.7497e-85.6333e-61.8740e-69.2470e-81.2166e-891.9297
RNCA GUHHN2.2229e-64.5308e-73.7072e-71.1186e-76.5967e-86.4487e-61.8899e-61.0212e-71.1817e-891.9297
RNCA GUHHE4.5275e-68.2810e-75.1006e-71.8408e-76.8698e-81.2689e-52.1169e-61.2605e-71.9090e-891.9297
*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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