AUTOMATIC Location - Area: Alpi Cozie , magnitude (ML): 0.8
2025-12-31 15:23:29 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-12-31 15:27:18

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Earthquake info - RsniPicker2 automatic location
Event - ID :251231152216
Magnitude (ML) :0.8 +/- 0.3
Origin Time :2025-12-31 15:23:29.76 (UTC)
Location : Latitude: 44.604 N, Longitude: 7.169 E
Area :Alpi Cozie
Depth (km) :8.19
Distances (km) : 3.2 --- Sampeyre (CN)
8.0 --- Casteldelfino (CN)
8.3 --- Oncino (CN)
9.1 --- Frassino (CN)
9.5 --- Elva (CN)
10.1 --- Ostana (CN)
10.7 --- Crissolo (CN)
11.3 --- Stroppo (CN)
11.4 --- Pontechianale (CN)
11.5 --- Macra (CN)
12.4 --- Bellino (CN)
12.4 --- Paesana (CN)
12.7 --- Melle (CN)
12.7 --- Sanfront (CN)
13.5 --- Celle di Macra (CN)
14.5 --- San Damiano Macra (CN)
14.5 --- Gambasca (CN)
15.2 --- Rifreddo (CN)
15.5 --- Valmala (CN)
15.6 --- Brossasco (CN)

Quality location estimate:
Erh: 1 km, Erz: 2.7 km, Nf: 16, Gap: 92°, Rms: 0.269 s
Stazioni validate: 11


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.
PZZGU2025-12-31 15:23:32.7900.00700.002.012025-12-31 15:23:33.3490.0430-1.600.1414.2
BHBGU2025-12-31 15:23:35.0700.0140-0.011.962025-12-31 15:23:38.2590.0841-0.450.7028.0
SURFFR2025-12-31 15:23:36.0800.01600.011.892025-12-31 15:23:40.2720.3602-0.430.8032.4
STVGU2025-12-31 15:23:37.4300.05510.021.632025-12-31 15:23:42.3800.1282-0.360.8342.6
ENRGU2025-12-31 15:23:38.0900.03800.011.682025-12-31 15:23:43.6390.2272-0.241.0046.8
RRLGU--:---.-----.---.--2025-12-31 15:23:43.9700.2702-0.610.6446.9
ISOFR--:---.-----.---.--2025-12-31 15:23:43.2000.7433-1.390.3248.4
RSPGU--:---.-----.---.--2025-12-31 15:23:47.5000.2922-0.710.5661.5
TURFFR--:---.-----.---.--2025-12-31 15:23:51.9000.2182-0.090.9872.6
ROROGU--:---.-----.---.--2025-12-31 15:23:55.0680.4902-0.730.5890.3
QLNOIV--:---.-----.---.--2025-12-31 15:23:57.5600.4732-1.440.2698.8


RsniPicker2 - Automatic magnitude (ML) calculation results
Station Net Stat. Mag. Wood-And.
Ampl.		 Dist. (km) Azimuth Used
PZZ GU0.502.82e-114.2201SI
BHB GU0.808.27e-228.016SI
STV GU0.601.60e-242.6163SI
ENR GU1.201.14e-146.8154SI
RRL GU0.802.02e-246.9320SI
ISO FR0.301.03e-248.4192SI
RSP GU0.801.81e-261.57SI
RORO GU1.101.46e-290.3127SI
QLNO IV1.201.74e-298.8108SI


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.
(°)
PZZ GUHHZ2.7454e-54.0866e-60.0000e+03.1419e-65.0858e-66.9666e-68.2743e-51.0490e-54.3486e-79.5346e-814.2201
PZZ GUHHN2.7120e-52.7109e-60.0000e+02.0813e-63.4458e-63.4458e-66.0821e-58.9895e-64.3892e-76.5189e-814.2201
PZZ GUHHE2.7052e-54.4050e-60.0000e+03.0652e-65.3384e-67.3198e-65.4032e-51.1913e-55.7341e-79.9336e-814.2201
BHB GUHHZ1.3495e-51.5884e-60.0000e+09.1019e-71.7522e-62.4692e-62.8306e-51.9383e-62.1434e-72.8700e-828.016
BHB GUHHN1.1616e-51.2586e-60.0000e+06.8384e-71.1922e-61.1922e-61.3513e-52.1743e-61.3733e-72.3940e-828.016
BHB GUHHE1.9186e-51.9027e-60.0000e+08.4841e-71.5730e-62.3165e-62.1072e-51.4479e-61.3751e-72.8035e-828.016
STV GUHHZ2.3124e-62.7180e-70.0000e+01.5462e-72.6822e-73.7622e-72.7093e-63.7995e-75.7864e-86.6824e-942.6163
STV GUHHN2.7544e-62.7680e-70.0000e+01.7236e-73.2272e-73.2272e-75.1406e-63.8825e-76.8716e-87.1221e-942.6163
STV GUHHE2.7780e-62.9104e-70.0000e+01.8889e-73.3821e-74.8184e-77.9620e-64.9618e-75.7426e-88.6594e-942.6163
ENR GUHHZ1.3447e-51.2542e-60.0000e+04.8094e-79.8799e-71.4942e-61.1985e-57.8799e-71.4323e-72.3824e-846.8154
ENR GUHHN3.8829e-53.6819e-60.0000e+01.5972e-63.2854e-63.2854e-65.3100e-52.5483e-62.6067e-77.3819e-846.8154
ENR GUHHE4.4925e-54.0571e-60.0000e+01.4420e-63.0386e-64.6172e-62.6760e-51.5634e-62.4298e-76.9762e-846.8154
RRL GUHHZ1.3725e-61.7119e-70.0000e+01.1773e-72.2536e-73.1161e-72.5225e-64.0039e-76.7041e-88.7902e-946.9320
RRL GUHHN1.4835e-62.6886e-70.0000e+02.1560e-73.8603e-73.8603e-74.5090e-66.8327e-76.6616e-81.2049e-846.9320
RRL GUHHE1.5718e-62.1659e-70.0000e+01.7103e-72.9456e-73.9445e-74.9555e-67.4778e-78.0005e-81.0433e-846.9320
ISO FRHHZ2.2428e-62.4688e-70.0000e+01.3223e-72.5436e-73.6979e-73.3533e-62.1218e-76.4217e-81.2774e-848.4192
ISO FRHHN2.0776e-62.2454e-70.0000e+01.2448e-72.3313e-72.3313e-73.5734e-62.1836e-76.5174e-88.3479e-948.4192
ISO FRHHE2.0175e-61.9750e-70.0000e+01.2142e-72.1983e-73.3909e-74.1425e-62.8671e-75.6884e-87.7096e-948.4192
RSP GUHHZ2.1707e-62.4266e-70.0000e+01.2454e-72.3230e-73.3428e-73.6632e-62.7482e-75.8298e-87.5352e-961.57
RSP GUHHN2.8977e-62.9728e-70.0000e+01.9653e-73.4447e-73.4447e-75.8746e-64.3463e-75.1037e-89.4571e-961.57
RSP GUHHE2.1071e-63.0169e-70.0000e+01.8568e-73.2138e-74.5878e-78.7075e-63.3947e-75.5620e-89.9644e-961.57
RORO GUHHZ4.0022e-63.8552e-70.0000e+01.7535e-73.6895e-75.2461e-74.0030e-65.3709e-71.0914e-71.0651e-890.3127
RORO GUHHN1.3845e-62.1474e-70.0000e+01.4442e-72.5796e-72.5796e-73.2703e-64.7148e-77.4923e-81.0059e-890.3127
RORO GUHHE1.7354e-62.2800e-70.0000e+01.5076e-72.7303e-74.0152e-75.3717e-65.4650e-78.0629e-89.5340e-990.3127
QLNO IVHHZ1.4898e-62.0377e-70.0000e+01.1628e-72.3834e-73.7091e-73.7194e-62.8944e-71.6435e-71.1207e-898.8108
QLNO IVHHN1.7485e-62.2728e-70.0000e+01.3855e-72.6446e-72.6446e-74.1901e-62.9353e-71.3475e-71.4222e-898.8108
QLNO IVHHE3.0223e-63.3741e-70.0000e+01.6369e-73.2920e-75.0546e-74.6509e-63.4928e-71.1377e-71.3940e-898.8108
*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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