AUTOMATIC Location - Area: Alpi Cozie , magnitude (ML): 0.5
2026-10-31 22:56:22 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2026-10-31 23:00:53

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Earthquake info - RsniPicker2 automatic location
Event - ID :261031225556
Magnitude (ML) :0.5 +/- 0.4
Origin Time :2026-10-31 22:56:22.2 (UTC)
Location : Latitude: 44.463 N, Longitude: 7.247 E
Area :Alpi Cozie
Depth (km) :15.06
Distances (km) : 3.1 --- San Damiano Macra (CN)
3.7 --- Cartignano (CN)
5.5 --- Pradleves (CN)
5.8 --- Celle di Macra (CN)
6.5 --- Castelmagno (CN)
6.9 --- Macra (CN)
7.8 --- Roccabruna (CN)
8.4 --- Monterosso Grana (CN)
9.3 --- Dronero (CN)
10.7 --- Montemale di Cuneo (CN)
10.7 --- Stroppo (CN)
10.9 --- Villar San Costanzo (CN)
12.0 --- Valgrana (CN)
12.1 --- Valmala (CN)
12.2 --- Marmora (CN)
12.4 --- Frassino (CN)
12.6 --- Melle (CN)
13.1 --- Canosio (CN)
13.7 --- Sampeyre (CN)
15.1 --- Brossasco (CN)

Quality location estimate:
Erh: 1.4 km, Erz: 2 km, Nf: 16, Gap: 115°, Rms: 0.386 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.
PZZGU2026-10-31 22:56:26.0400.00800.001.612026-10-31 22:56:28.1500.0521-0.651.2218.9
STVGU2026-10-31 22:56:27.5300.01300.031.492026-10-31 22:56:30.5300.0831-0.681.1629.1
ENRGU2026-10-31 22:56:28.1000.0140-0.021.542026-10-31 22:56:31.6450.1072-0.611.1132.9
SURFFR--:---.-----.---.--2026-10-31 22:56:33.7720.3112-0.610.9137.6
ISOFR2026-10-31 22:56:29.6100.01900.520.002026-10-31 22:56:33.7000.1132-0.090.9837.8
BHBGU--:---.-----.---.--2026-10-31 22:56:34.5090.1672-0.651.0144.1
GBOSGU2026-10-31 22:56:31.8500.0250-0.021.302026-10-31 22:56:38.0990.1602-0.520.9655.3
SAOFFR--:---.-----.---.--2026-10-31 22:56:39.7000.4102-1.060.5360.2
RRLGU--:---.-----.---.--2026-10-31 22:56:40.9800.4252-0.850.7064.2
ROROGU--:---.-----.---.--2026-10-31 22:56:44.1690.3012-0.670.8677.5
IMIGU--:---.-----.---.--2026-10-31 22:56:45.2990.2802-0.960.6281.6


RsniPicker2 - Automatic magnitude (ML) calculation results
Station Net Stat. Mag. Wood-And.
Ampl.		 Dist. (km) Azimuth Used
PZZ GU0.301.09e-118.9295SI
STV GU0.301.65e-229.1165SI
ENR GU0.605.89e-232.9152SI
ISO FR0.109.67e-337.8207SI
BHB GU-0.104.72e-344.12SI
GBOS GU1.203.26e-255.3117SI
SAOF FR0.306.22e-360.2155SI
RRL GU0.505.81e-364.2325SI
RORO GU0.606.81e-377.5121SI
IMI GU0.901.64e-281.6140SI


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 GUHHZ9.2629e-61.2435e-60.0000e+03.9604e-76.9377e-79.7465e-78.1324e-61.5053e-67.6443e-81.3495e-818.9295
PZZ GUHHN2.8259e-52.8593e-60.0000e+04.1455e-78.2138e-78.2138e-71.2557e-51.3199e-69.8724e-82.0862e-818.9295
PZZ GUHHE8.8424e-61.0956e-60.0000e+03.9272e-77.3310e-71.0601e-61.1887e-51.6418e-65.4083e-81.4446e-818.9295
STV GUHHZ1.9043e-62.8407e-70.0000e+07.6692e-81.4440e-72.2522e-72.2245e-61.4519e-75.1909e-84.0018e-929.1165
STV GUHHN3.1630e-62.9586e-70.0000e+08.3469e-81.5891e-71.5891e-72.5507e-62.9004e-74.9343e-83.7914e-929.1165
STV GUHHE3.1761e-64.2501e-70.0000e+09.4329e-81.7103e-72.5187e-73.6016e-62.4161e-73.3669e-84.7349e-929.1165
ENR GUHHZ7.2761e-66.3583e-70.0000e+01.9837e-73.9296e-75.8683e-76.9176e-65.5353e-76.8073e-89.3697e-932.9152
ENR GUHHN1.6773e-51.7288e-60.0000e+06.3261e-71.3320e-61.3320e-61.7733e-51.2441e-61.0064e-73.3013e-832.9152
ENR GUHHE2.1398e-51.9086e-60.0000e+07.0413e-71.4445e-62.1729e-61.6060e-51.1450e-61.3593e-73.0879e-832.9152
ISO FRHHZ1.0132e-61.4604e-70.0000e+04.5742e-88.7314e-81.3047e-71.1743e-61.1187e-72.7915e-83.2039e-937.8207
ISO FRHHN1.4062e-61.9034e-70.0000e+04.2109e-87.8502e-87.8502e-88.4018e-79.5719e-83.3278e-82.8455e-937.8207
ISO FRHHE1.4420e-61.9160e-70.0000e+03.7975e-86.8656e-89.8429e-81.0538e-67.7443e-82.4695e-82.3292e-937.8207
BHB GUHHZ1.2556e-61.2738e-70.0000e+06.1339e-81.1568e-71.7845e-72.2414e-61.2212e-73.0324e-83.3798e-944.12
BHB GUHHN8.9283e-79.5322e-80.0000e+05.3477e-89.7288e-89.7288e-81.5321e-61.2181e-72.5180e-83.3618e-944.12
BHB GUHHE1.1160e-61.2794e-70.0000e+06.1116e-81.2471e-71.8215e-71.6736e-61.3644e-72.3686e-82.8218e-944.12
GBOS GUHHZ2.8355e-64.7177e-70.0000e+03.3688e-75.7276e-77.9015e-75.6341e-69.4633e-78.8309e-81.5024e-855.3117
GBOS GUHHN2.1379e-63.5197e-70.0000e+02.0559e-73.2991e-73.2991e-75.6284e-67.3033e-78.8899e-88.2006e-955.3117
GBOS GUHHE1.8849e-64.2836e-70.0000e+01.9699e-73.0618e-74.2079e-73.1233e-69.3228e-71.1125e-76.8957e-955.3117
SAOF FRHHE1.8849e-64.2836e-70.0000e+01.9699e-73.0618e-74.2079e-73.1233e-69.3228e-71.1125e-76.8957e-960.2155
RRL GUHHZ1.6594e-72.8391e-80.0000e+01.5337e-83.9530e-87.1097e-83.3362e-76.9706e-82.9666e-84.6691e-964.2325
RRL GUHHN1.9432e-73.8901e-80.0000e+02.4383e-85.8958e-85.8958e-86.3981e-77.1974e-84.6251e-83.6451e-964.2325
RRL GUHHE1.7520e-73.7510e-80.0000e+02.5575e-85.9615e-89.1357e-84.0197e-79.0784e-84.1155e-83.6343e-964.2325
RORO GUHHZ5.9086e-76.3055e-80.0000e+04.1301e-88.2540e-81.2423e-79.9475e-71.1568e-76.3979e-83.7010e-977.5121
RORO GUHHN3.7107e-75.9754e-80.0000e+04.6841e-88.6056e-88.6056e-81.0416e-61.6712e-75.5748e-84.1603e-977.5121
RORO GUHHE4.5108e-75.8335e-80.0000e+04.4863e-88.1123e-81.2516e-78.5284e-71.9388e-75.8355e-83.8465e-977.5121
IMI GUHHZ2.7155e-75.6255e-80.0000e+02.8054e-88.3538e-81.4307e-74.8934e-71.3145e-78.6790e-87.0288e-981.6140
IMI GUHHN7.1602e-71.1180e-70.0000e+06.2730e-81.5843e-71.5843e-71.4450e-61.9211e-71.7222e-77.4822e-981.6140
IMI GUHHE4.2902e-77.2518e-80.0000e+03.8477e-88.6980e-81.4065e-71.3729e-61.1275e-77.0102e-87.6914e-981.6140
*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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