AUTOMATIC Location - Area: Alpi Marittime , magnitude (ML): 0.5
2025-08-12 20:43:28 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-08-12 20:47:17

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Earthquake info - RsniPicker2 automatic location
Event - ID :250812204234
Magnitude (ML) :0.5 +/- 0.3
Origin Time :2025-08-12 20:43:28.25 (UTC)
Location : Latitude: 44.389 N, Longitude: 6.930 E
Area :Alpi Marittime
Depth (km) :17.04
Distances (km) : 1.1 --- Argentera (CN)
9.6 --- Pietraporzio (CN)
10.8 --- Acceglio (CN)
12.8 --- Sambuco (CN)
14.4 --- Canosio (CN)
14.6 --- Prazzo (CN)
15.3 --- Marmora (CN)
20.5 --- Stroppo (CN)
21.2 --- Elva (CN)
21.4 --- Vinadio (CN)
22.5 --- Celle di Macra (CN)
22.5 --- Bellino (CN)
22.6 --- Castelmagno (CN)
23.4 --- Macra (CN)
24.5 --- Aisone (CN)
25.1 --- Casteldelfino (CN)
27.2 --- Pontechianale (CN)
28.2 --- Pradleves (CN)
28.3 --- San Damiano Macra (CN)
29.6 --- Sampeyre (CN)

Quality location estimate:
Erh: 1 km, Erz: 0.8 km, Nf: 14, Gap: 160°, Rms: 0.284 s
Stazioni validate: 9


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.
SURFFR2025-08-12 20:43:32.6890.01000.001.942025-08-12 20:43:35.0090.0661-0.870.3921.9
PZZGU2025-08-12 20:43:33.4700.0120-0.021.842025-08-12 20:43:36.1680.0781-1.050.4426.1
ISOFR2025-08-12 20:43:33.9700.04300.011.842025-08-12 20:43:36.7000.0901-1.080.4130.0
ENRGU2025-08-12 20:43:36.6890.02200.051.66--:---.-----.---.-- 46.0
BHBGU2025-08-12 20:43:38.9800.02900.230.692025-08-12 20:43:45.7200.5763-0.260.6458.8
TURFFR2025-08-12 20:43:39.5800.07810.101.342025-08-12 20:43:47.0260.2362-0.400.6061.4
ESCAFR--:---.-----.---.--2025-08-12 20:43:50.8200.2202-0.120.8873.5
GBOSGU--:---.-----.---.--2025-08-12 20:43:50.2200.4742-0.450.6276.2
IMIGU--:---.-----.---.--2025-08-12 20:43:56.3690.37620.040.7395.0


RsniPicker2 - Automatic magnitude (ML) calculation results
Station Net Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth Used
PZZ GU0.407.16e-226.148SI
ISO FR0.201.82e-230.0157SI
ENR GU0.301.63e-246.0114SI
BHB GU0.508.75e-358.828SI
GBOS GU1.101.27e-276.2102SI
IMI GU0.606.39e-395.0124SI


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 GUHHZ1.2026e-51.4924e-60.0000e+06.7053e-71.2137e-61.7468e-61.7758e-51.7315e-69.6537e-82.4001e-826.148
PZZ GUHHN9.3003e-61.2517e-60.0000e+05.1188e-79.8641e-79.8641e-71.5669e-51.2003e-69.8658e-82.0815e-826.148
PZZ GUHHE1.4215e-51.9029e-60.0000e+07.8123e-71.4252e-62.0594e-62.1605e-51.6052e-61.2262e-73.4192e-826.148
ISO FRHHZ2.7551e-63.0720e-70.0000e+01.0870e-72.0145e-72.9402e-72.8346e-62.1205e-72.1152e-84.2494e-930.0157
ISO FRHHN2.1766e-63.4488e-70.0000e+01.2779e-72.5429e-72.5429e-73.1312e-63.1850e-72.3767e-84.3076e-930.0157
ISO FRHHE2.7768e-63.7023e-70.0000e+01.2047e-72.3798e-73.4649e-72.3361e-63.6627e-72.5211e-84.1920e-930.0157
ENR GUHHZ2.6945e-62.9095e-70.0000e+01.0692e-72.1352e-73.1597e-72.6619e-62.9813e-74.5135e-85.2524e-946.0114
ENR GUHHN6.0277e-65.4929e-70.0000e+02.2641e-74.7135e-74.7135e-75.4263e-66.2334e-75.0338e-81.1467e-846.0114
ENR GUHHE5.4427e-64.4042e-70.0000e+01.7143e-73.5597e-75.4210e-73.5046e-63.2939e-75.2868e-88.0300e-946.0114
BHB GUHHZ1.0307e-61.4127e-70.0000e+08.0616e-81.4733e-72.1244e-71.7786e-62.3958e-71.4429e-82.7189e-958.828
BHB GUHHN5.6012e-79.4817e-80.0000e+07.9498e-81.3906e-71.3906e-71.4862e-63.3124e-72.0326e-83.0290e-958.828
BHB GUHHE7.3714e-79.7542e-80.0000e+06.8810e-81.1671e-71.6357e-71.1003e-62.2348e-71.8254e-82.3395e-958.828
GBOS GUHHZ2.3508e-75.2540e-80.0000e+03.3292e-85.9956e-88.4849e-88.7335e-78.7332e-81.8382e-81.8865e-976.2102
GBOS GUHHN4.5428e-79.3782e-80.0000e+07.5523e-81.5906e-71.5906e-71.0031e-63.2942e-77.4058e-86.5813e-976.2102
GBOS GUHHE2.6548e-75.2336e-80.0000e+03.4243e-85.9907e-88.5183e-89.7348e-77.6656e-81.6770e-81.2336e-976.2102
IMI GUHHZ1.9338e-73.2614e-80.0000e+02.0212e-85.4440e-81.0040e-74.7942e-78.4612e-84.4480e-83.6662e-995.0124
IMI GUHHN5.6683e-76.3998e-80.0000e+04.6050e-88.7260e-88.7260e-81.0864e-61.5378e-75.2415e-84.1408e-995.0124
IMI GUHHE3.0360e-74.9261e-80.0000e+03.0792e-86.5733e-81.1461e-75.7804e-71.4515e-74.1585e-83.3897e-995.0124
*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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