MANUAL Location - Area: Alpi Cozie , magnitude (ML): 0.7
2025-11-04 18:59:05 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-11-05 08:05:28

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Earthquake info - Manual location
Event - ID :251104185842
Magnitude (ML) :0.7 +/- 0.2
Origin Time :2025-11-04 18:59:05.844 (UTC)
Location : Latitude: 44.587 N, Longitude: 6.696 E
Area :Alpi Cozie
Depth (km) :4.55
Distances (km) : 25.4 --- Bellino
26.3 --- Acceglio
26.6 --- Pontechianale
28.5 --- Argentera
29.6 --- Casteldelfino
30.6 --- Prazzo
31.6 --- Elva
33.8 --- Canosio
34.6 --- Marmora
35.2 --- Stroppo
37.9 --- Pietraporzio
38.6 --- Crissolo
39.1 --- Sampeyre
39.4 --- Macra
39.5 --- Claviere
40.0 --- Celle di Macra
40.4 --- Oncino
40.7 --- Ostana
40.7 --- Sambuco
41.4 --- Cesana Torinese

Quality location estimate: Erh: 1 km, Erz: 0.9 km, Nf: 26, Gap: 183 °, 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.
SURFFR2025-11-04 18:59:09.5900.01500.231.182025-11-04 18:59:11.9400.0471-0.031.4615.7
OGAGFR2025-11-04 18:59:11.1900.0160-0.011.512025-11-04 18:59:14.6300.0772-0.340.4326.2
PZZGU2025-11-04 18:59:12.8900.02310.031.532025-11-04 18:59:17.8900.1043-0.051.2535.0
RRLGU2025-11-04 18:59:13.7600.02310.211.272025-11-04 18:59:18.9460.1524-0.021.2338.5
VINDIV2025-11-04 18:59:15.2050.0200-0.041.402025-11-04 18:59:21.7840.0400-0.061.2349.1
BHBGU2025-11-04 18:59:16.2300.03110.320.902025-11-04 18:59:22.2100.2827-0.800.1852.9
ISOFR2025-11-04 18:59:15.9700.03010.111.452025-11-04 18:59:22.1700.2456-0.560.3453.2
STVGU2025-11-04 18:59:17.5100.03610.231.192025-11-04 18:59:25.0000.1895-0.250.7863.0
ENRGU2025-11-04 18:59:18.8320.02000.390.682025-11-04 18:59:27.4140.04000.161.1970.0
RSPGU2025-11-04 18:59:20.6880.02000.730.082025-11-04 18:59:30.1320.04000.231.0577.0
SAOFFR2025-11-04 18:59:23.2990.02000.141.312025-11-04 18:59:34.1600.4339-1.100.1595.6
GBOSGU2025-11-04 18:59:23.0790.0200-0.101.122025-11-04 18:59:35.5510.04000.310.8798.7
LSDGU2025-11-04 18:59:24.4070.02000.041.312025-11-04 18:59:37.1980.0400-0.110.93103.1


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
OGAG FRHH0.363.67e-226.2331
PZZ GUHH0.697.70e-235.0105
RRL GUHH0.521.72e-238.511
BHB GUHH0.561.34e-252.958
STV GUHH0.617.71e-363.0127
ENR GUHH0.801.96e-270.0124
RSP GUHH0.709.85e-377.036
SAOF FRHH0.695.48e-395.6134
GBOS GUHH1.198.22e-398.7113
LSD GUHH0.765.34e-3103.119


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.
(°)
OGAG FRHHZ2.0755e-64.6982e-73.0282e-71.3827e-78.4832e-85.8788e-61.2825e-61.0822e-71.1700e-826.2331
OGAG FRHHN2.7070e-65.0218e-73.2032e-78.7566e-84.1801e-81.1723e-51.3463e-66.2649e-81.1044e-826.2331
OGAG FRHHE3.2553e-65.7174e-74.1871e-71.2278e-76.6899e-89.1757e-61.9809e-68.2158e-81.3120e-826.2331
PZZ GUHHZ5.8751e-67.3804e-74.6855e-71.1067e-76.2986e-81.7840e-52.1179e-69.4675e-81.6512e-835.0105
PZZ GUHHN5.6531e-61.0088e-66.7863e-71.7336e-78.9057e-82.1823e-52.8571e-61.6086e-72.7673e-835.0105
PZZ GUHHE7.9897e-61.2179e-65.7421e-71.6184e-77.9604e-81.5476e-53.3587e-61.4512e-73.0873e-835.0105
RRL GUHHZ1.3991e-61.8710e-79.2546e-83.7638e-81.8047e-83.5350e-64.2520e-73.1212e-85.2821e-938.511
RRL GUHHN1.5370e-62.3023e-71.5215e-74.4888e-82.1112e-84.7298e-67.3125e-72.9263e-85.9440e-938.511
RRL GUHHE1.3381e-61.8036e-71.2069e-75.6507e-82.2846e-84.4631e-65.1552e-73.3666e-84.4979e-938.511
BHB GUHHZ2.2454e-63.1882e-71.3207e-73.3329e-82.5743e-86.9016e-65.9994e-75.1399e-86.5993e-952.958
BHB GUHHN1.7639e-62.3340e-71.0713e-73.0123e-82.0118e-82.7854e-65.2672e-73.3045e-85.1355e-952.958
BHB GUHHE2.0065e-62.2684e-78.6727e-82.8083e-81.4277e-82.9898e-63.5889e-72.6202e-84.8518e-952.958
ISO FRHHZ1.6216e-61.8055e-75.8695e-81.3796e-88.4695e-91.9452e-61.8359e-71.5227e-83.3699e-953.2148
ISO FRHHN1.0467e-61.2105e-74.7581e-81.5819e-88.3468e-91.9269e-61.6970e-71.2850e-82.2269e-953.2148
ISO FRHHE1.5358e-61.6542e-75.8406e-82.1480e-89.2696e-92.1342e-61.9191e-71.3379e-82.9419e-953.2148
STV GUHHZ1.8209e-61.6997e-76.8987e-82.1069e-89.7654e-91.8975e-62.9391e-71.4824e-82.4246e-963.0127
STV GUHHN1.1458e-61.4781e-77.2123e-82.1116e-81.1551e-82.9551e-62.5436e-71.8986e-83.7590e-963.0127
STV GUHHE1.2221e-61.6045e-76.4676e-81.9577e-81.1510e-82.9872e-62.1878e-71.8268e-83.3509e-963.0127
ENR GUHHZ3.0823e-63.9711e-71.2908e-73.3868e-82.0580e-84.7523e-64.7970e-73.8305e-88.6916e-970.0124
ENR GUHHN5.8930e-66.2516e-71.4998e-74.0865e-82.6198e-89.5966e-65.1310e-74.5794e-81.2218e-870.0124
ENR GUHHE6.0129e-65.2957e-71.5647e-73.9113e-82.2006e-87.7358e-65.2246e-73.9856e-89.4469e-970.0124
RSP GUHHZ1.0078e-61.2502e-75.9184e-82.8114e-81.4220e-82.0168e-62.7009e-71.8271e-83.0236e-977.036
RSP GUHHN1.1556e-61.8327e-78.7893e-82.9346e-81.3037e-83.3882e-62.6405e-71.9418e-83.8081e-977.036
RSP GUHHE1.5341e-62.1426e-79.0730e-83.0958e-81.3220e-84.3502e-62.7790e-71.9975e-84.1623e-977.036
SAOF FRHHZ2.6764e-75.8598e-85.0818e-82.2395e-81.2115e-87.7941e-74.4181e-71.6750e-81.6539e-995.6134
SAOF FRHHN2.7714e-74.7145e-83.6663e-81.7929e-81.2115e-84.8640e-72.8133e-71.7301e-81.3966e-995.6134
SAOF FRHHE2.7617e-74.8374e-84.4811e-81.9927e-81.1185e-88.1350e-73.4127e-71.4370e-81.5375e-995.6134
GBOS GUHHZ3.7131e-76.0567e-84.6177e-81.5204e-88.0482e-91.6400e-62.0764e-71.2081e-81.7340e-998.7113
GBOS GUHHN5.0381e-71.0731e-75.8035e-83.3203e-81.5803e-81.1312e-64.3280e-71.7901e-82.1040e-998.7113
GBOS GUHHE3.6085e-78.2176e-86.1082e-82.4864e-81.1503e-81.4640e-64.9090e-71.7992e-82.3604e-998.7113
LSD GUHHZ3.7142e-75.9349e-84.9470e-81.4966e-87.3066e-99.9463e-72.5444e-71.0712e-81.5739e-9103.119
LSD GUHHN4.8213e-77.1319e-84.8869e-81.9695e-88.7126e-99.1570e-72.1658e-71.4056e-81.6693e-9103.119
LSD GUHHE4.3788e-76.6086e-85.4425e-81.6633e-88.3912e-91.4840e-63.2291e-71.3244e-81.7282e-9103.119
*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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