AUTOMATIC Location - Area: Alpi Cozie , magnitude (ML): 1.7
2025-12-24 09:36:32 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-12-24 09:40:04

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Earthquake info - RsniPicker2 automatic location
Event - ID :251224093512
Magnitude (ML) :1.7 +/- 0.4
Origin Time :2025-12-24 09:36:32.99 (UTC)
Location : Latitude: 44.543 N, Longitude: 6.802 E
Area :Alpi Cozie
Depth (km) :4.62
Distances (km) : 16.7 --- Acceglio (CN)
17.6 --- Bellino (CN)
19.5 --- Argentera (CN)
20.0 --- Pontechianale (CN)
21.1 --- Prazzo (CN)
21.9 --- Casteldelfino (CN)
22.8 --- Elva (CN)
24.3 --- Canosio (CN)
25.0 --- Marmora (CN)
26.1 --- Stroppo (CN)
28.7 --- Pietraporzio (CN)
30.3 --- Macra (CN)
30.7 --- Celle di Macra (CN)
31.1 --- Sampeyre (CN)
31.4 --- Sambuco (CN)
33.2 --- Crissolo (CN)
34.3 --- Oncino (CN)
35.0 --- Ostana (CN)
35.8 --- Castelmagno (CN)
36.5 --- San Damiano Macra (CN)

Quality location estimate:
Erh: 0.9 km, Erz: 0.9 km, Nf: 31, Gap: 149°, Rms: 0.182 s
Stazioni validate: 17


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.
SURFFR2025-12-24 09:36:35.3890.00500.290.632025-12-24 09:36:36.6600.0250-0.031.818.4
PZZGU2025-12-24 09:36:38.4190.01200.051.682025-12-24 09:36:41.7790.0771-0.500.3225.6
OGAGFR2025-12-24 09:36:39.7990.01700.001.792025-12-24 09:36:44.4500.1032-0.161.2234.5
RRLGU2025-12-24 09:36:41.2700.02000.021.692025-12-24 09:36:46.8490.1272-0.191.1242.3
ISOFR2025-12-24 09:36:42.0600.02300.510.422025-12-24 09:36:47.3490.1342-0.061.3244.8
BHBGU2025-12-24 09:36:42.1690.0280-0.081.552025-12-24 09:36:47.6690.3842-1.100.1549.1
STVGU2025-12-24 09:36:42.6100.0270-0.161.232025-12-24 09:36:49.5200.1602-0.051.2553.4
ENRGU2025-12-24 09:36:43.9390.03000.011.612025-12-24 09:36:51.8130.19420.250.9860.3
OGMOFR--:---.-----.---.--2025-12-24 09:36:56.7900.22420.190.9974.7
RSPGU2025-12-24 09:36:47.0700.08510.081.372025-12-24 09:36:55.4390.4582-1.440.0976.7
MVIFFR--:---.-----.---.--2025-12-24 09:36:57.2500.2962-0.560.5277.3
TURFFR2025-12-24 09:36:48.0700.04000.610.362025-12-24 09:36:57.7400.23720.071.0478.9
GBOSGU2025-12-24 09:36:48.8100.04400.101.322025-12-24 09:36:59.6690.26720.070.9989.1
ESCAFR2025-12-24 09:36:50.3800.04600.670.312025-12-24 09:37:01.4600.2752-0.030.9791.5
MGROGU2025-12-24 09:36:50.3200.0490-0.270.912025-12-24 09:37:01.9700.4782-1.000.2797.6
IMIGU2025-12-24 09:36:52.6690.05610.061.302025-12-24 09:37:06.3820.40020.020.82111.9
PCPGU2025-12-24 09:36:56.5400.06910.260.98--:---.-----.---.-- 138.2


RsniPicker2 - Automatic magnitude (ML) calculation results
Station Net Stat. Mag. Wood-And.
Ampl.		 Dist. (km) Azimuth Used
PZZ GU1.407.60e-125.699SI
RRL GU1.601.82e-142.3359SI
ISO FR1.107.24e-244.8154SI
BHB GU1.207.10e-249.148SI
STV GU1.601.21e-153.4128SI
ENR GU1.702.05e-160.3125SI
RSP GU1.404.98e-276.728SI
GBOS GU2.703.40e-189.1112SI
MGRO GU1.806.27e-297.6124SI
IMI GU2.001.16e-1111.9129SI
PCP GU1.602.05e-2138.290SI


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 GUHHZ5.6447e-58.8449e-60.0000e+05.8978e-61.0198e-51.4221e-51.4317e-42.0133e-51.1498e-61.7770e-725.699
PZZ GUHHN5.9848e-51.0166e-50.0000e+06.4552e-61.0472e-51.0472e-51.6070e-42.2902e-51.1187e-61.9717e-725.699
PZZ GUHHE5.4987e-51.1426e-50.0000e+08.4004e-61.4032e-51.9643e-51.1937e-44.1993e-51.5219e-62.6671e-725.699
RRL GUHHZ6.4683e-61.0602e-60.0000e+07.6054e-71.3254e-61.8198e-61.8421e-54.0044e-62.4097e-73.2898e-842.3359
RRL GUHHN7.9143e-61.6891e-60.0000e+01.3925e-62.3370e-62.3370e-62.1518e-56.5467e-64.2524e-75.7720e-842.3359
RRL GUHHE9.5862e-61.5181e-60.0000e+01.2272e-62.0844e-62.8953e-62.9751e-53.8765e-64.3894e-74.0861e-842.3359
ISO FRHHZ7.2609e-61.6412e-60.0000e+01.1065e-62.0270e-62.8634e-62.4009e-52.9237e-62.1171e-73.5001e-844.8154
ISO FRHHN5.9176e-69.5974e-70.0000e+07.6647e-71.3193e-61.3193e-61.6897e-52.1272e-61.9657e-72.8903e-844.8154
ISO FRHHE5.0204e-61.1101e-60.0000e+07.4719e-71.3175e-61.8568e-61.5349e-53.1626e-61.6048e-73.2049e-844.8154
BHB GUHHZ1.2371e-51.5272e-60.0000e+01.0228e-61.7956e-62.5472e-62.8921e-52.2951e-61.5855e-73.6684e-849.148
BHB GUHHN7.7149e-61.3802e-60.0000e+09.5050e-71.7175e-61.7175e-62.0167e-52.8237e-62.0367e-72.8140e-849.148
BHB GUHHE7.7140e-61.1680e-60.0000e+08.2659e-71.3643e-61.8906e-62.6700e-51.7522e-61.6055e-72.6150e-849.148
STV GUHHZ4.4062e-61.0259e-60.0000e+09.0733e-71.6127e-62.2161e-61.3787e-56.0514e-63.6932e-74.0636e-853.4128
STV GUHHN4.5858e-61.1189e-60.0000e+08.2612e-71.5528e-61.5528e-61.6209e-53.5124e-65.5992e-73.7754e-853.4128
STV GUHHE5.7847e-61.2880e-60.0000e+01.0473e-61.8874e-62.6207e-61.8402e-54.3815e-63.7481e-73.3978e-853.4128
ENR GUHHZ1.2816e-51.8247e-60.0000e+01.0566e-62.2179e-63.1817e-63.1146e-51.7857e-64.8924e-75.4412e-860.3125
ENR GUHHN2.6675e-52.8208e-60.0000e+01.8266e-63.4083e-63.4083e-64.2185e-56.4092e-66.5784e-78.6492e-860.3125
ENR GUHHE2.1605e-53.0744e-60.0000e+01.9873e-63.5022e-64.9895e-65.5225e-54.5169e-64.5034e-76.6989e-860.3125
RSP GUHHZ3.8317e-65.1603e-70.0000e+03.6180e-76.4462e-78.7718e-78.4371e-61.9418e-69.5504e-81.3164e-876.728
RSP GUHHN4.8865e-68.3427e-70.0000e+05.9532e-71.0212e-61.0212e-61.3586e-51.6480e-61.2096e-71.7763e-876.728
RSP GUHHE3.7938e-66.0348e-70.0000e+05.9609e-79.4338e-71.2391e-61.1997e-52.6133e-61.2605e-71.7729e-876.728
GBOS GUHHZ9.6545e-62.6023e-60.0000e+01.4894e-62.4999e-63.3926e-61.8084e-58.0372e-64.4806e-74.7786e-889.1112
GBOS GUHHN4.3583e-61.7317e-60.0000e+01.3644e-62.4537e-62.4537e-61.2903e-58.0355e-67.9989e-76.3814e-889.1112
GBOS GUHHE1.0981e-53.1872e-60.0000e+01.8992e-63.1399e-64.1162e-61.8057e-51.2223e-53.9560e-74.6540e-889.1112
MGRO GUHHZ9.6964e-73.5999e-70.0000e+02.3237e-75.3643e-77.5945e-72.2789e-69.3137e-72.0547e-72.1245e-897.6124
MGRO GUHHN1.1140e-63.7865e-70.0000e+03.3531e-76.9503e-76.9503e-74.8091e-62.1432e-62.2329e-73.2672e-897.6124
MGRO GUHHE1.0362e-63.0495e-70.0000e+03.1014e-76.0861e-78.1078e-74.3122e-61.6835e-61.5775e-71.5879e-897.6124
IMI GUHHZ1.0022e-62.8720e-70.0000e+02.9117e-75.1304e-77.0813e-73.7409e-61.9517e-62.5234e-72.4092e-8111.9129
IMI GUHHN2.6317e-68.7861e-70.0000e+08.3614e-71.5398e-61.5398e-67.9636e-64.5603e-62.9847e-73.7433e-8111.9129
IMI GUHHE2.1000e-65.9796e-70.0000e+05.3485e-79.8664e-71.3194e-64.4622e-63.8657e-62.0067e-72.0617e-8111.9129
PCP GUHHZ5.2684e-71.5123e-70.0000e+01.2907e-72.5510e-73.9114e-71.5653e-68.3893e-71.5669e-78.8750e-9138.290
PCP GUHHN6.2784e-71.4220e-70.0000e+01.2173e-72.3492e-72.3492e-71.5631e-67.9886e-71.3603e-71.4668e-8138.290
PCP GUHHE7.3726e-72.0949e-70.0000e+01.5168e-72.6003e-73.8424e-71.7107e-69.3660e-71.1471e-71.3266e-8138.290
*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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