MANUAL Location - Area: Alpi Cozie , magnitude (ML): 0.8
2025-02-02 17:39:26 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-02-03 08:49:40

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Earthquake info - Manual location
Event - ID :250202173751
Magnitude (ML) :0.8 +/- 0.2
Origin Time :2025-02-02 17:39:26.358 (UTC)
Location : Latitude: 44.523 N, Longitude: 6.871 E
Area :Alpi Cozie
Depth (km) :4.55
Distances (km) : 10.7 --- Acceglio
13.2 --- Bellino
14.9 --- Argentera
15.2 --- Prazzo
16.7 --- Pontechianale
17.4 --- Elva
17.4 --- Casteldelfino
18.2 --- Canosio
19.0 --- Marmora
20.3 --- Stroppo
23.6 --- Pietraporzio
24.5 --- Macra
24.8 --- Celle di Macra
26.0 --- Sambuco
26.0 --- Sampeyre
29.8 --- Castelmagno
30.0 --- Crissolo
30.5 --- Oncino
30.6 --- San Damiano Macra
31.5 --- Ostana

Quality location estimate: Erh: 0.8 km, Erz: 1 km, Nf: 26, Gap: 93 °, Rms: 0.18


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.
SURFFR2025-02-02 17:39:28.4400.00400.011.842025-02-02 17:39:29.5290.0240-0.460.518.0
PZZGU2025-02-02 17:39:30.7200.0100-0.001.852025-02-02 17:39:33.3000.1103-0.600.3820.4
VINDIV2025-02-02 17:39:33.0400.0200-0.041.692025-02-02 17:39:37.4400.0400-0.370.6434.1
OGAGFR2025-02-02 17:39:34.1040.02000.071.562025-02-02 17:39:39.4550.0400-0.011.5039.9
ISOFR2025-02-02 17:39:34.4950.02000.360.492025-02-02 17:39:39.4600.1935-0.011.2340.6
RRLGU2025-02-02 17:39:35.0200.0221-0.081.502025-02-02 17:39:40.9720.0400-0.270.8945.2
BHBGU2025-02-02 17:39:35.3300.02310.161.102025-02-02 17:39:40.7200.1364-0.630.3846.8
STVGU2025-02-02 17:39:35.9650.02000.810.012025-02-02 17:39:41.1760.0400-0.101.3347.8
ENRGU2025-02-02 17:39:36.7100.04720.410.422025-02-02 17:39:43.3100.16550.071.1954.6
RSPGU2025-02-02 17:39:40.4100.08540.181.122025-02-02 17:39:49.9100.2256-0.131.0276.4
SAOFFR2025-02-02 17:39:42.6260.02001.510.002025-02-02 17:39:51.4870.04000.041.1780.8
GBOSGU2025-02-02 17:39:41.0540.0200-0.021.462025-02-02 17:39:51.1610.0400-0.101.1683.2
LSDGU2025-02-02 17:39:45.3100.05220.101.252025-02-02 17:39:57.6550.1002-0.760.32106.4


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
PZZ GUHH0.712.21e-120.495
OGAG FRHH0.784.38e-239.9318
RRL GUHH0.691.85e-245.2352
BHB GUHH0.883.59e-246.842
STV GUHH0.581.28e-247.8130
ENR GUHH1.055.90e-254.6127
RSP GUHH0.607.92e-376.424
SAOF FRHH0.677.74e-380.8137
GBOS GUHH1.291.52e-283.2112
LSD GUHH1.211.39e-2106.411


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.
(°)
PZZ GUHHZ1.6121e-52.5927e-61.5008e-63.4479e-71.4906e-75.5758e-56.5553e-62.3741e-75.4574e-820.495
PZZ GUHHN1.6348e-52.7565e-61.9002e-67.0790e-73.2477e-75.6507e-51.2390e-54.1544e-77.5927e-820.495
PZZ GUHHE1.3699e-52.6009e-62.2540e-66.1037e-72.8888e-73.3828e-51.3500e-54.1653e-77.0295e-820.495
OGAG FRHHZ1.0750e-62.7243e-72.9919e-71.6823e-76.1605e-82.3815e-61.7553e-66.7180e-89.8483e-939.9318
OGAG FRHHN1.0214e-62.9268e-72.5393e-71.3826e-74.7390e-82.2026e-61.0298e-65.5743e-87.5281e-939.9318
OGAG FRHHE9.5790e-73.9575e-73.7089e-72.2779e-79.2086e-81.8741e-62.8508e-61.1535e-71.0606e-839.9318
ISO FRHHZ9.8716e-71.6128e-79.8615e-82.8317e-81.5085e-83.3288e-63.4233e-71.9638e-83.5102e-940.6159
ISO FRHHN8.9929e-71.4628e-77.9707e-82.6586e-81.5211e-82.5487e-64.2683e-71.9729e-83.2372e-940.6159
ISO FRHHE1.2910e-61.8169e-71.2009e-74.7461e-82.2556e-83.6331e-65.9178e-73.3057e-84.3775e-940.6159
RRL GUHHZ1.0818e-61.8087e-71.2407e-75.7473e-82.1408e-82.6079e-67.8022e-72.9193e-84.0879e-945.2352
RRL GUHHN1.1544e-62.5690e-71.8055e-77.2075e-83.1409e-83.6462e-61.0208e-64.6663e-85.9143e-945.2352
RRL GUHHE1.4411e-62.2421e-71.6816e-77.1898e-83.0949e-82.8955e-69.8245e-74.8432e-85.0311e-945.2352
BHB GUHHZ3.6204e-65.0413e-73.0235e-78.8850e-85.7634e-81.1470e-51.6521e-61.0779e-71.1704e-846.842
BHB GUHHN2.3897e-64.1052e-73.1912e-71.1270e-75.2696e-87.4169e-61.8102e-66.3646e-81.1442e-846.842
BHB GUHHE2.9131e-64.6161e-72.7961e-78.5874e-84.3599e-86.3175e-61.1846e-67.5435e-81.1302e-846.842
STV GUHHZ1.2668e-62.5439e-71.6463e-75.2065e-82.5592e-84.6330e-66.7036e-74.3078e-86.0817e-947.8130
STV GUHHN1.7267e-62.1711e-71.1530e-73.9482e-82.3638e-83.8088e-66.6595e-72.9937e-84.3831e-947.8130
STV GUHHE1.2093e-61.4487e-71.2429e-73.5271e-81.5501e-83.1566e-64.2399e-72.4154e-83.4871e-947.8130
ENR GUHHZ3.0487e-65.0447e-72.1101e-71.0238e-71.0883e-77.4954e-67.9940e-71.8190e-71.9107e-854.6127
ENR GUHHN1.0444e-51.1087e-63.8848e-71.1629e-76.4710e-81.3769e-51.3001e-69.9437e-82.1123e-854.6127
ENR GUHHE1.3392e-51.4087e-65.3230e-71.2829e-77.4950e-81.7944e-52.0422e-61.3152e-72.8865e-854.6127
RSP GUHHZ4.5971e-78.6085e-84.1510e-81.4728e-87.1055e-91.4253e-61.8747e-71.0087e-82.0717e-976.424
RSP GUHHN5.5975e-71.1109e-76.4234e-81.9030e-88.1559e-92.2898e-62.0460e-71.3422e-82.3890e-976.424
RSP GUHHE8.0821e-71.3207e-76.6553e-81.8219e-88.9223e-92.5080e-62.2215e-71.2571e-83.2476e-976.424
SAOF FRHHZ3.0185e-78.1819e-88.5443e-84.1100e-81.7955e-87.1051e-74.9367e-72.5295e-82.5806e-980.8137
SAOF FRHHN2.4836e-76.3255e-85.6093e-83.5493e-82.1038e-87.0793e-73.0745e-72.2492e-82.1691e-980.8137
SAOF FRHHE2.4886e-76.9166e-86.7719e-84.3633e-82.6094e-81.0726e-64.1544e-72.2124e-82.2579e-980.8137
GBOS GUHHZ7.9062e-71.8661e-71.3236e-75.1212e-81.9200e-82.7189e-65.3881e-73.4865e-84.0760e-983.2112
GBOS GUHHN6.2528e-71.0588e-71.0124e-75.1155e-82.6570e-81.7888e-65.2358e-73.3850e-83.6733e-983.2112
GBOS GUHHE5.5916e-71.3729e-71.3524e-76.3827e-82.8200e-82.1098e-67.7448e-73.9579e-84.6743e-983.2112
LSD GUHHZ3.6614e-77.8828e-85.7833e-82.6625e-81.1177e-81.1191e-62.9415e-71.6260e-82.1036e-9106.411
LSD GUHHN4.5782e-77.5431e-86.7067e-82.4828e-81.0687e-81.2911e-63.7214e-71.6246e-82.2418e-9106.411
LSD GUHHE7.5462e-71.7464e-71.2196e-74.6274e-81.9427e-82.0285e-65.2139e-72.7822e-84.3526e-9106.411
*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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