AUTOMATIC Location - Area: Appennino ligure , magnitude (ML): 2.6
2026-02-04 12:09:26 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2026-02-04 12:14:45

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Earthquake info - RsniPicker2 automatic location
Event - ID :260204120811
Magnitude (ML) :2.6 +/- 0.4
Origin Time :2026-02-04 12:09:26.4 (UTC)
Location : Latitude: 44.697 N, Longitude: 9.261 E
Area :Appennino ligure
Depth (km) :8.88
Distances (km) : 3.9 --- Zerba (PC)
5.0 --- Brallo di Pregola (PV)
7.5 --- Cerignale (PC)
8.5 --- Santa Margherita di Staffora (PV)
8.9 --- Fortunago (PV)
9.9 --- Ottone (PC)
9.9 --- Corte Brugnatella (PC)
10.4 --- Gorreto (GE)
10.6 --- Fabbrica Curone (AL)
10.9 --- Carrega Ligure (AL)
11.2 --- Menconico (PV)
12.7 --- Bobbio (PC)
13.3 --- Cabella Ligure (AL)
13.3 --- Coli (PC)
13.4 --- Rovegno (GE)
14.6 --- Montacuto (AL)
14.7 --- Fascia (GE)
15.0 --- Varzi (PV)
15.2 --- Rondanina (GE)
15.3 --- Albera Ligure (AL)

Quality location estimate:
Erh: 1 km, Erz: 1.2 km, Nf: 24, Gap: 64°, Rms: 0.208 s
Stazioni validate: 19


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.
GORRGU2026-02-04 12:09:29.3700.00700.001.962026-02-04 12:09:31.7500.04100.021.9213.6
RNCAGU2026-02-04 12:09:33.2790.01900.201.032026-02-04 12:09:38.0700.1092-0.041.5536.2
MSSAIV2026-02-04 12:09:35.0800.02500.041.822026-02-04 12:09:41.6330.1482-0.181.1347.8
PCPGU2026-02-04 12:09:36.8690.0310-0.101.51--:---.-----.---.-- 59.9
GRAMGU2026-02-04 12:09:38.5800.0340-0.051.62--:---.-----.---.-- 68.3
QLNOIV2026-02-04 12:09:41.2590.13420.071.44--:---.-----.---.-- 84.0
PLMAIV2026-02-04 12:09:41.3100.2122-0.051.262026-02-04 12:09:51.8100.3972-0.890.3086.5
EQUIGU2026-02-04 12:09:42.9590.06610.440.60--:---.-----.---.-- 92.8
ERBMIV2026-02-04 12:09:44.3690.16920.450.69--:---.-----.---.-- 96.8
MONCIV2026-02-04 12:09:48.2700.05610.091.36--:---.-----.---.-- 113.5
CARDGU2026-02-04 12:09:48.4100.06211.120.17--:---.-----.---.-- 122.8
GBOSGU2026-02-04 12:09:47.9000.06310.740.33--:---.-----.---.-- 123.9
MDIIV2026-02-04 12:09:48.3600.0611-0.800.19--:---.-----.---.-- 124.8
VAREIV2026-02-04 12:09:50.3600.0661-0.111.21--:---.-----.---.-- 136.0
MUGIOCH2026-02-04 12:09:49.9100.0671-0.870.18--:---.-----.---.-- 137.5
POPMGU2026-02-04 12:09:51.8890.07511.550.06--:---.-----.---.-- 139.6
ENRGU2026-02-04 12:09:52.6600.07810.890.28--:---.-----.---.-- 155.4
GARGNI2026-02-04 12:09:53.5990.07710.071.24--:---.-----.---.-- 155.9
RSPGU2026-02-04 12:09:53.4190.0871-0.101.16--:---.-----.---.-- 165.1
CIROGU2026-02-04 12:09:54.2790.09210.291.00--:---.-----.---.-- 166.8


RsniPicker2 - Automatic magnitude (ML) calculation results
Station Net Stat. Mag. Wood-And.
Ampl.		 Dist. (km) Azimuth Used
GORR GU3.004.83e+113.6166SI
RNCA GU2.301.63e+036.2225SI
MSSA IV2.208.38e-147.8154SI
PCP GU1.902.86e-159.9253SI
GRAM GU2.601.60e+068.3109SI
QLNO IV2.202.18e-184.0241SI
PLMA IV2.604.98e-186.5147SI
EQUI GU2.201.99e-192.8129SI
ERBM IV2.301.93e-196.8108SI
CARD GU3.005.28e-1122.8127SI
GBOS GU3.103.84e-1123.9246SI
MDI IV2.803.26e-1124.817SI
VARE IV2.802.69e-1136.0344SI
POPM GU2.906.27e-1139.6121SI
ENR GU2.903.22e-1155.4251SI
GARG NI3.104.05e-1155.944SI
RSP GU2.406.94e-2165.1288SI
CIRO GU2.901.11e-1166.8308SI


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.
(°)
GORR GUHHZ9.0596e-42.4873e-40.0000e+01.4218e-42.4829e-43.2768e-41.8582e-37.8514e-44.6789e-54.5073e-613.6166
GORR GUHHN2.4538e-36.5029e-40.0000e+01.9196e-43.3980e-43.3980e-43.5282e-39.4834e-44.4649e-56.0975e-613.6166
GORR GUHHE1.9949e-35.1974e-40.0000e+02.1736e-43.7402e-44.8766e-42.9661e-31.0061e-37.0579e-56.5499e-613.6166
RNCA GUHHZ6.3265e-41.5411e-40.0000e+01.5982e-42.5574e-43.3898e-41.8611e-39.9679e-44.9593e-53.9231e-636.2225
RNCA GUHHN7.3379e-41.8311e-40.0000e+01.6632e-42.7384e-42.7384e-41.4423e-38.3121e-44.6583e-54.8235e-636.2225
RNCA GUHHE1.1261e-32.7864e-40.0000e+03.0995e-44.7183e-46.1788e-43.5126e-31.2646e-37.2967e-58.4109e-636.2225
MSSA IVHHZ6.6884e-61.8889e-60.0000e+01.9530e-64.0154e-65.1523e-62.1410e-51.3820e-51.2029e-68.9130e-847.8154
MSSA IVHHN7.3880e-62.1018e-60.0000e+02.0217e-63.7214e-63.7214e-61.9030e-56.1602e-61.3225e-66.9066e-847.8154
MSSA IVHHE7.2774e-62.0947e-60.0000e+01.9651e-64.2612e-65.4599e-62.4228e-57.5533e-61.2339e-67.3690e-847.8154
PCP GUHHZ7.3194e-62.5051e-60.0000e+02.5328e-64.8985e-66.3000e-61.9442e-51.6846e-58.6708e-71.0551e-759.9253
PCP GUHHN8.6322e-62.0346e-60.0000e+02.1686e-63.7868e-63.7868e-62.2542e-51.1004e-51.0160e-67.4331e-859.9253
PCP GUHHE7.4321e-62.3743e-60.0000e+02.1702e-64.1400e-65.5226e-62.1885e-51.1554e-59.8367e-78.8098e-859.9253
GRAM GUHHZ1.8507e-55.9582e-60.0000e+05.8107e-69.5807e-61.2408e-53.5376e-52.7794e-52.6244e-61.9021e-768.3109
GRAM GUHHN0.0000e+00.0000e+00.0000e+0-1.0000e+0-1.0000e+0-1.0000e+0-1.0000e+0-1.0000e+0-1.0000e+0-1.0000e+068.3109
GRAM GUHHE4.5860e-51.8003e-50.0000e+01.4952e-52.6278e-53.5607e-57.0283e-59.7791e-53.5310e-64.7098e-768.3109
QLNO IVHHZ4.1748e-61.2077e-60.0000e+01.3311e-62.5068e-63.2092e-61.1357e-59.4709e-65.5539e-73.8710e-884.0241
QLNO IVHHN5.9026e-62.0168e-60.0000e+02.0886e-63.5517e-63.5517e-61.3022e-57.9923e-69.0939e-75.7319e-884.0241
QLNO IVHHE5.9312e-61.7635e-60.0000e+01.5555e-63.0928e-64.1182e-61.5072e-55.2567e-66.0670e-76.5717e-884.0241
PLMA IVHHZ1.2941e-53.0392e-60.0000e+02.9255e-65.0643e-66.8946e-63.2841e-51.5581e-51.1010e-61.0225e-786.5147
PLMA IVHHN2.0204e-55.2469e-60.0000e+05.5044e-68.8108e-68.8108e-65.4744e-52.5393e-51.2067e-61.6834e-786.5147
PLMA IVHHE1.5753e-54.4909e-60.0000e+04.7367e-67.9471e-61.0205e-54.7205e-53.7693e-51.7679e-61.4132e-786.5147
EQUI GUHHZ3.5783e-61.0174e-60.0000e+01.1923e-62.1743e-62.8293e-69.6104e-67.2103e-65.5421e-74.6015e-892.8129
EQUI GUHHN4.0447e-61.5864e-60.0000e+01.2738e-62.7071e-62.7071e-61.1885e-55.8597e-66.8175e-76.2027e-892.8129
EQUI GUHHE4.0399e-69.6614e-70.0000e+08.1102e-71.4144e-61.9087e-61.2235e-53.4944e-64.6881e-73.1792e-892.8129
MONC IVHHZ6.1844e-61.7534e-60.0000e+01.9038e-63.1714e-64.1564e-61.5251e-51.1945e-57.3333e-75.2795e-8113.5-1
MONC IVHHN7.2268e-62.0804e-60.0000e+01.8268e-63.2600e-63.2600e-61.6567e-51.2526e-56.3165e-78.4287e-8113.5-1
MONC IVHHE2.2407e-53.5727e-60.0000e+02.8809e-65.5474e-67.9520e-63.5740e-51.9867e-52.6356e-61.2488e-7113.5-1
CARD GUHHZ8.3203e-62.9843e-60.0000e+02.0822e-63.8868e-65.6879e-62.0727e-51.2598e-51.4883e-66.9656e-8122.8127
CARD GUHHN1.7318e-54.7131e-60.0000e+04.9784e-68.8041e-68.8041e-66.5822e-51.8974e-51.9222e-61.4407e-7122.8127
CARD GUHHE1.8270e-54.6760e-60.0000e+04.5755e-67.6696e-61.0479e-55.3374e-51.9013e-52.0347e-61.3164e-7122.8127
GBOS GUHHZ4.4003e-61.6968e-60.0000e+01.3483e-62.8097e-63.6766e-61.1493e-57.8043e-67.0520e-77.9664e-8123.9246
GBOS GUHHN4.6502e-62.4536e-60.0000e+01.8948e-64.1702e-64.1702e-69.2314e-69.7952e-61.4449e-61.1626e-7123.9246
GBOS GUHHE3.6384e-61.2912e-60.0000e+01.1382e-62.3748e-63.0166e-69.2561e-67.9101e-65.0822e-76.9438e-8123.9246
MDI IVHHZ3.0435e-61.2838e-60.0000e+09.1667e-71.8495e-62.4164e-61.0279e-55.5660e-64.4221e-73.5655e-8124.817
MDI IVHHN5.0024e-61.8286e-60.0000e+09.6207e-71.7795e-61.7795e-61.0579e-54.4695e-67.2689e-73.7914e-8124.817
MDI IVHHE5.1487e-62.1305e-60.0000e+01.3243e-62.7342e-63.6338e-61.8690e-55.6513e-67.0208e-76.0546e-8124.817
VARE IVHHZ3.5266e-61.2717e-60.0000e+08.2508e-71.6962e-62.1910e-61.0131e-53.9894e-64.8289e-75.8564e-8136.0344
VARE IVHHN4.2782e-61.5477e-60.0000e+01.0849e-62.2530e-62.2530e-61.0128e-56.2517e-67.4116e-74.8583e-8136.0344
VARE IVHHE3.9016e-61.4576e-60.0000e+01.5722e-62.7641e-63.6492e-67.8816e-68.8982e-67.1071e-75.3719e-8136.0344
POPM GUHHZ1.2230e-52.4547e-60.0000e+02.1724e-63.4449e-64.6401e-65.1231e-57.4066e-68.1254e-79.0344e-8139.6121
POPM GUHHN1.3421e-54.3688e-60.0000e+03.0044e-64.7882e-64.7882e-64.0612e-51.4816e-51.2489e-61.0324e-7139.6121
POPM GUHHE1.2217e-55.0756e-60.0000e+02.8329e-65.3461e-66.8928e-61.7566e-51.6800e-51.0196e-61.3793e-7139.6121
ENR GUHHZ3.1473e-66.0705e-70.0000e+06.1510e-71.2125e-61.6201e-66.3995e-62.3085e-62.6449e-74.6671e-8155.4251
ENR GUHHN7.8482e-68.7738e-70.0000e+07.2229e-71.3261e-61.3261e-61.1869e-52.6486e-63.1111e-74.2450e-8155.4251
ENR GUHHE4.9585e-68.6147e-70.0000e+07.4659e-71.4954e-61.9173e-61.0881e-53.7012e-63.5148e-73.2446e-8155.4251
GARG NIEHZ4.5753e-61.5309e-60.0000e+01.5152e-62.6923e-63.5755e-61.1417e-57.6920e-66.7757e-74.5910e-8155.944
GARG NIEHN3.6794e-71.1837e-70.0000e+07.8488e-82.0984e-72.0984e-78.3013e-74.4264e-79.9238e-89.4334e-9155.944
GARG NIEHE3.8599e-61.3346e-60.0000e+01.1771e-62.1584e-62.9812e-67.6727e-65.1276e-67.9566e-75.7283e-8155.944
RSP GUHHZ1.6213e-64.3709e-70.0000e+03.6872e-76.5613e-78.8390e-74.7486e-61.8820e-61.1076e-71.2926e-8165.1288
RSP GUHHN1.1388e-63.1340e-70.0000e+03.5496e-76.1035e-76.1035e-74.4109e-62.4466e-61.1478e-71.4963e-8165.1288
RSP GUHHE1.3860e-64.2389e-70.0000e+04.2572e-76.8251e-79.2028e-75.0698e-62.1816e-61.1746e-72.3119e-8165.1288
CIRO GUHHZ2.2224e-63.5855e-70.0000e+02.9637e-75.4174e-77.0808e-75.4776e-61.1579e-61.6044e-71.2186e-8166.8308
CIRO GUHHN1.6825e-62.8609e-70.0000e+02.5683e-74.7943e-74.7943e-73.4374e-67.9189e-79.8296e-81.3463e-8166.8308
CIRO GUHHE1.4097e-62.5371e-70.0000e+02.4098e-74.7094e-76.1121e-74.6323e-69.1421e-71.0252e-71.0229e-8166.8308
*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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