AUTOMATIC Location - Area: Lunigiana , magnitude (ML): 0.8
2026-01-04 07:01:47 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2026-01-04 07:06:32

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Earthquake info - RsniPicker2 automatic location
Event - ID :260104070121
Magnitude (ML) :0.8 +/- 0.3
Origin Time :2026-01-04 07:01:47.07 (UTC)
Location : Latitude: 44.158 N, Longitude: 9.983 E
Area :Lunigiana
Depth (km) :6.19
Distances (km) : 3.7 --- Fosdinovo (MS)
5.4 --- Sarzana (SP)
5.5 --- Santo Stefano di Magra (SP)
6.4 --- Aulla (MS)
6.5 --- Podenzana (MS)
6.9 --- Castelnuovo Magra (SP)
7.4 --- Arcola (SP)
7.8 --- Bolano (SP)
8.1 --- Vezzano Ligure (SP)
9.0 --- Ortonovo (SP)
9.7 --- Follo (SP)
9.9 --- Tresana (MS)
10.2 --- Ameglia (SP)
10.7 --- Lerici (SP)
12.9 --- Licciana Nardi (MS)
13.5 --- Carrara (MS)
14.3 --- La Spezia (SP)
14.5 --- Fivizzano (MS)
15.2 --- Calice al Cornoviglio (SP)
15.2 --- Villafranca in Lunigiana (MS)

Quality location estimate:
Erh: 1.8 km, Erz: 2.1 km, Nf: 14, Gap: 97°, Rms: 0.129 s
Stazioni validate: 7


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.
EQUIGU2026-01-04 07:01:50.3200.01000.001.842026-01-04 07:01:52.6890.05000.021.7615.0
PLMAIV2026-01-04 07:01:49.5400.0090-0.990.032026-01-04 07:01:51.2490.0400-1.810.0017.1
SARMGU2026-01-04 07:01:53.5800.0250-0.011.762026-01-04 07:01:58.5080.17720.071.2334.0
GRAMGU--:---.-----.---.--2026-01-04 07:01:58.8300.30020.050.9538.1
MSSAIV--:---.-----.---.--2026-01-04 07:02:00.5700.1192-0.011.3041.6
CARDGU2026-01-04 07:01:54.9190.02500.240.772026-01-04 07:02:00.2240.1372-0.121.0342.9
MAIMGU2026-01-04 07:01:55.9590.02800.011.682026-01-04 07:02:02.2200.3442-0.380.5449.2
POPMGU2026-01-04 07:01:58.3690.03500.230.942026-01-04 07:02:07.1560.20020.690.1763.3


RsniPicker2 - Automatic magnitude (ML) calculation results
Station Net Stat. Mag. Wood-And.
Ampl.		 Dist. (km) Azimuth Used
EQUI GU0.501.31e-115.086SI
SARM GU0.503.90e-234.085SI
GRAM GU0.707.64e-238.110SI
MSSA IV0.703.29e-241.6295SI
CARD GU1.301.35e-142.9110SI
MAIM GU0.802.60e-249.2124SI
POPM GU1.301.04e-163.3101SI


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.
(°)
EQUI GUHHZ1.3573e-51.1985e-60.0000e+04.8104e-78.5389e-71.2186e-61.0223e-51.5941e-61.3650e-71.9301e-815.086
EQUI GUHHN2.5849e-52.9330e-60.0000e+07.7408e-71.5822e-61.5822e-62.7362e-52.2777e-62.0776e-74.6549e-815.086
EQUI GUHHE2.0144e-52.0749e-60.0000e+04.8118e-79.2312e-71.3661e-61.0341e-59.6501e-72.3781e-73.0374e-815.086
PLMA IVHHZ6.7898e-56.9489e-60.0000e+01.4703e-63.0588e-64.4400e-64.3738e-54.1189e-64.0218e-76.5537e-817.1-1
PLMA IVHHN8.1042e-51.1902e-50.0000e+03.2703e-65.9986e-65.9986e-69.8211e-56.7974e-66.4047e-71.1627e-717.1-1
PLMA IVHHE9.7413e-51.1467e-50.0000e+02.4606e-65.0303e-67.4287e-65.8563e-57.0019e-65.1518e-78.8546e-817.1-1
SARM GUEHZ2.5929e-63.0664e-70.0000e+01.8047e-73.4895e-74.9394e-76.2832e-65.3942e-78.3632e-81.7050e-834.085
SARM GUEHN3.5190e-64.5356e-70.0000e+02.4281e-74.9740e-74.9740e-79.7434e-68.8544e-71.2460e-71.8681e-834.085
SARM GUEHE3.6933e-64.2644e-70.0000e+02.3615e-74.9375e-76.7996e-73.8401e-69.1328e-71.1068e-72.0507e-834.085
GRAM GUHHZ5.4953e-66.2648e-70.0000e+05.3906e-78.9430e-71.2207e-61.2421e-51.5380e-61.8998e-73.1295e-838.110
GRAM GUHHN6.5190e-61.2270e-60.0000e+09.1699e-71.5207e-61.5207e-62.0933e-52.5446e-62.1704e-74.4285e-838.110
GRAM GUHHE5.2914e-61.1298e-60.0000e+09.1587e-71.5438e-62.0955e-61.1809e-52.7569e-62.6383e-73.7618e-838.110
MSSA IVHHZ7.6952e-78.5108e-80.0000e+05.9317e-81.1636e-72.0382e-72.2920e-61.6875e-77.7747e-81.0333e-841.6295
MSSA IVHHN9.5652e-71.5010e-70.0000e+07.6698e-81.4456e-71.4456e-72.1324e-61.8917e-78.8846e-81.0138e-841.6295
MSSA IVHHE1.0287e-61.3988e-70.0000e+07.7204e-81.4113e-72.3974e-72.1037e-62.0361e-79.1623e-81.1664e-841.6295
CARD GUHHZ1.4398e-51.8620e-60.0000e+09.1393e-71.7506e-62.5110e-61.7358e-51.7817e-61.9823e-73.4072e-842.9110
CARD GUHHN2.1302e-52.2981e-60.0000e+01.2824e-62.2717e-62.2717e-63.0544e-52.1664e-62.6567e-74.7114e-842.9110
CARD GUHHE2.0064e-52.5816e-60.0000e+01.7797e-63.1486e-64.5053e-64.4746e-53.1942e-62.5763e-75.9829e-842.9110
MAIM GUHHZ1.8615e-62.5364e-70.0000e+01.6403e-73.2147e-74.9949e-74.2225e-64.9689e-72.1470e-72.3521e-849.2124
MAIM GUHHN3.7552e-65.2588e-70.0000e+02.7221e-74.8891e-74.8891e-75.9186e-67.2229e-71.1644e-72.4603e-849.2124
MAIM GUHHE2.5982e-63.7690e-70.0000e+02.3944e-74.3795e-76.7105e-78.1401e-66.9778e-71.5928e-72.3755e-849.2124
POPM GUHHZ5.3110e-67.1917e-70.0000e+04.0678e-77.3059e-71.0607e-61.0500e-58.8363e-78.2141e-81.4950e-863.3101
POPM GUHHN7.3710e-61.4314e-60.0000e+01.0696e-61.8103e-61.8103e-61.5280e-52.8722e-61.8663e-73.3220e-863.3101
POPM GUHHE5.7316e-67.9649e-70.0000e+05.7109e-79.8190e-71.4017e-61.3543e-51.3338e-61.4574e-72.2376e-863.3101
*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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