MANUAL Location - Area: Alpi Marittime , magnitude (ML): 0.4
2025-05-05 23:10:02 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-05-06 06:53:01

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Earthquake info - Manual location
Event - ID :250505230938
Magnitude (ML) :0.4 +/- 0.2
Origin Time :2025-05-05 23:10:02.461 (UTC)
Location : Latitude: 44.315 N, Longitude: 7.459 E
Area :Alpi Marittime
Depth (km) :4.79
Distances (km) : 1.8 --- Roccavione
3.1 --- Borgo San Dalmazzo
3.4 --- Roccasparvera
4.7 --- Robilante
4.8 --- Gaiola
4.9 --- Roaschia
5.2 --- Vignolo
5.6 --- Moiola
6.3 --- Rittana
6.4 --- Valdieri
7.3 --- Valloriate
7.6 --- Boves
7.7 --- Cervasca
8.2 --- Bernezzo
9.5 --- Entracque
9.8 --- Vernante
9.8 --- Cuneo
11.8 --- Caraglio
12.6 --- Valgrana
12.8 --- Peveragno

Quality location estimate: Erh: 0.8 km, Erz: 1 km, Nf: 36, Gap: 104 °, Rms: 0.30


Manual location results
Station Net P arrival time P pick
err
P pick
weight
P res Nll
weight
S arrival time S pick
err
S pick
weight
S res Nll
weight
Dist.
ENRGU2025-05-05 23:10:05.2500.05020.350.962025-05-05 23:10:06.6200.04000.041.4911.6
STVGU2025-05-05 23:10:05.7330.08030.370.982025-05-05 23:10:07.1800.0400-0.181.2714.3
VINDIV2025-05-05 23:10:07.0570.08030.041.452025-05-05 23:10:09.8420.0400-0.280.9423.0
GBOSGU2025-05-05 23:10:07.9570.0200-0.600.342025-05-05 23:10:12.6380.04000.011.5031.9
PZZGU2025-05-05 23:10:09.3370.0200-0.031.582025-05-05 23:10:13.6010.0400-0.610.3835.1
ISOFR2025-05-05 23:10:09.8010.02000.520.852025-05-05 23:10:14.2070.04000.321.0236.1
SAOFFR2025-05-05 23:10:10.3650.02000.620.692025-05-05 23:10:14.7550.0400-0.141.3837.6
TURFFR2025-05-05 23:10:10.5100.02000.520.852025-05-05 23:10:15.3070.0400-0.041.4838.4
MLIGIV2025-05-05 23:10:10.4110.0200-0.051.562025-05-05 23:10:15.2880.0400-0.890.1740.7
MGROGU2025-05-05 23:10:10.2400.0200-0.251.052025-05-05 23:10:15.5930.0400-0.580.4041.6
MVIFFR2025-05-05 23:10:12.5410.02000.021.492025-05-05 23:10:19.6360.0400-0.111.3452.7
ROROGU2025-05-05 23:10:12.0620.0200-0.231.142025-05-05 23:10:19.3240.04000.341.0553.6
ESCAFR2025-05-05 23:10:13.3280.02000.660.612025-05-05 23:10:20.2800.33170.490.8554.4
BIGNGU2025-05-05 23:10:12.8230.02000.281.002025-05-05 23:10:19.5070.2276-0.061.2154.5
IMIGU2025-05-05 23:10:13.1190.02000.301.002025-05-05 23:10:20.2310.04000.071.3557.0
BHBGU2025-05-05 23:10:12.9510.02000.051.432025-05-05 23:10:20.1440.38180.141.0660.1
CANOGU2025-05-05 23:10:14.1320.0200-0.251.072025-05-05 23:10:21.5470.0400-0.900.1963.3
QLNOIV2025-05-05 23:10:16.1220.02000.690.552025-05-05 23:10:25.2000.04000.860.3170.8


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
ENR GUHH0.795.96e-111.6199
STV GUHH0.306.54e-214.3234
GBOS GUHH0.311.15e-231.9105
PZZ GUHH0.122.06e-235.1308
TURF FRHH0.311.56e-238.4188
MGRO GUHH-0.016.51e-341.6137
RORO GUHH0.328.25e-353.6115
ESCA FRHH0.461.11e-254.4187
BIGN GUEH0.511.25e-254.5156
IMI GUHH0.561.71e-257.0142
BHB GUHH0.457.96e-360.1345
CANO GUHH0.731.49e-263.3101
QLNO IVHH0.425.80e-370.889


Results of PGA, PGV, IH, spectral amplitudes (SA) values calculation
Station Net Channel PGA
(g)
PGV
(m/s)
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.
(°)
ENR GUHHZ5.7029e-55.6832e-61.0883e-63.9421e-72.2576e-74.9956e-54.6697e-64.6536e-79.0731e-811.6199
ENR GUHHN1.7379e-41.4491e-53.0137e-69.7345e-75.5428e-71.4641e-41.4053e-51.1885e-62.9457e-711.6199
ENR GUHHE1.6894e-41.7049e-53.3600e-61.1555e-67.2275e-72.0927e-41.0903e-51.3490e-63.1053e-711.6199
STV GUHHZ1.2862e-51.9564e-64.9492e-71.7436e-71.0647e-72.0947e-51.7936e-62.0219e-74.1013e-814.3234
STV GUHHN1.2209e-51.5978e-63.4068e-71.1171e-75.6689e-81.3041e-51.5684e-61.0167e-72.8717e-814.3234
STV GUHHE1.6000e-51.7260e-63.7302e-71.3774e-78.6459e-82.5123e-51.3727e-61.6840e-74.1699e-814.3234
GBOS GUHHZ1.2231e-61.4742e-76.6580e-82.4187e-81.5790e-83.0570e-62.7379e-71.9977e-83.6790e-931.9105
GBOS GUHHN1.1446e-62.0629e-79.1614e-85.1106e-82.8839e-82.4413e-63.6561e-73.7625e-84.2872e-931.9105
GBOS GUHHE1.1631e-61.6467e-77.5742e-82.7004e-81.5436e-83.1654e-64.7847e-72.6534e-84.0910e-931.9105
PZZ GUHHZ2.3941e-63.3566e-71.5228e-73.8431e-82.3353e-88.2065e-67.3779e-74.2436e-88.0203e-935.1308
PZZ GUHHN3.0582e-64.4635e-71.7046e-76.2003e-82.9275e-86.9178e-65.1495e-73.8509e-89.2850e-935.1308
PZZ GUHHE3.1629e-64.2015e-71.7113e-76.2574e-83.1863e-85.9362e-66.4863e-74.3430e-89.7896e-935.1308
ISO FRHHZ5.5953e-77.0466e-83.4006e-81.1925e-89.7486e-91.4687e-61.5371e-71.6228e-81.7471e-936.1246
ISO FRHHN7.6890e-78.1970e-83.9395e-81.3962e-88.8076e-91.2351e-62.4355e-79.5887e-91.8244e-936.1246
ISO FRHHE5.6933e-77.3841e-83.5229e-81.6795e-88.3569e-91.6330e-61.9657e-71.2020e-81.6802e-936.1246
SAOF FRHHZ5.6705e-79.1293e-85.2730e-83.0486e-81.9888e-88.5168e-73.4763e-72.8025e-83.0754e-937.6168
SAOF FRHHN7.6905e-78.6716e-84.7775e-83.1467e-82.5964e-81.8551e-62.0094e-72.7076e-82.8292e-937.6168
SAOF FRHHE7.3529e-79.0578e-85.1213e-83.3737e-82.6207e-81.9429e-62.2602e-73.3559e-82.5260e-937.6168
TURF FRHHZ7.7127e-79.1337e-84.7128e-82.4796e-81.7674e-81.2006e-62.6836e-72.7970e-83.4749e-938.4188
TURF FRHHN9.0828e-71.2924e-76.8164e-83.0528e-82.9677e-81.3736e-63.5270e-74.6485e-84.1764e-938.4188
TURF FRHHE7.0973e-71.2330e-76.4117e-84.6262e-88.9152e-82.3515e-63.5560e-71.7906e-72.0213e-838.4188
MGRO GUHHZ3.7434e-75.3256e-83.2333e-82.0015e-81.6498e-88.4507e-79.6619e-82.3976e-81.5408e-941.6137
MGRO GUHHN6.1351e-77.5665e-85.5640e-83.0227e-82.0568e-81.7976e-62.4336e-73.0378e-82.8390e-941.6137
MGRO GUHHE6.5343e-77.4799e-85.0172e-82.3919e-82.5655e-81.4696e-62.9164e-74.7461e-83.0357e-941.6137
RORO GUHHZ7.4469e-79.6428e-85.0910e-81.8642e-82.0112e-81.4877e-62.4709e-73.6469e-83.3288e-953.6115
RORO GUHHN6.1105e-79.3219e-87.5812e-82.2899e-81.5933e-82.0393e-65.3408e-72.1656e-82.7998e-953.6115
RORO GUHHE6.9352e-79.7121e-85.1078e-81.9281e-81.6811e-81.9602e-62.6915e-72.3515e-83.1629e-953.6115
ESCA FRHHZ5.0739e-79.6577e-86.1081e-82.9207e-81.9699e-89.6067e-74.6961e-72.5353e-82.3413e-954.4187
ESCA FRHHN7.1875e-71.2572e-77.4429e-83.7054e-82.6740e-81.7234e-63.0380e-73.3642e-83.6333e-954.4187
ESCA FRHHE6.1895e-71.2819e-79.9349e-83.7209e-82.5925e-81.3151e-64.4896e-73.8060e-83.4585e-954.4187
BIGN GUEHZ6.3221e-77.3585e-83.9354e-83.0058e-83.1672e-88.4925e-71.0981e-75.7837e-83.2636e-954.5156
BIGN GUEHN1.0790e-61.6426e-79.3180e-84.5131e-83.4694e-81.9256e-63.0213e-75.3980e-85.6676e-954.5156
BIGN GUEHE1.2140e-61.3474e-78.2002e-85.0968e-83.5752e-81.4391e-63.1786e-75.1012e-86.4799e-954.5156
IMI GUHHZ7.1796e-71.1369e-76.7539e-83.2151e-82.9516e-81.1449e-63.1762e-74.3602e-83.4957e-957.0142
IMI GUHHN2.2133e-63.2706e-71.4804e-76.9515e-85.9818e-84.2280e-67.0956e-79.4324e-86.5511e-957.0142
IMI GUHHE1.4781e-61.6226e-77.3356e-83.2506e-82.5486e-82.0218e-62.6886e-73.5260e-84.8289e-957.0142
BHB GUHHZ1.0748e-61.3734e-75.6907e-82.4920e-81.5331e-82.4114e-61.5659e-73.0314e-82.7607e-960.1345
BHB GUHHN1.2973e-61.5628e-77.3109e-82.2082e-81.2675e-83.0494e-62.6028e-71.9519e-83.7541e-960.1345
BHB GUHHE1.5915e-61.6960e-77.1318e-82.9352e-81.3943e-82.7649e-62.9415e-72.5565e-83.4057e-960.1345
CANO GUHHZ7.1408e-77.8473e-85.1575e-83.5537e-85.3698e-81.3972e-62.3984e-79.9091e-85.4310e-963.3101
CANO GUHHN6.1268e-71.0214e-77.3782e-84.6607e-83.2763e-81.7722e-65.3987e-73.8301e-83.6662e-963.3101
CANO GUHHE7.1519e-71.3155e-77.4720e-85.7641e-88.8162e-82.2085e-62.8891e-71.7498e-77.0022e-963.3101
QLNO IVHHZ3.1222e-74.5558e-83.4040e-82.8061e-82.2436e-85.5638e-72.0133e-72.9490e-83.0228e-970.889
QLNO IVHHN8.5184e-71.0042e-73.4930e-82.6471e-82.5812e-81.1244e-62.3330e-74.4251e-83.5348e-970.889
QLNO IVHHE6.5283e-77.4234e-83.9964e-82.9615e-82.6058e-81.0852e-61.7716e-74.6528e-83.6821e-970.889
*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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