MANUAL Location - Area: Langhe , magnitude (ML): 0.5
2025-03-04 23:14:05 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-03-05 08:35:15

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Earthquake info - Manual location
Event - ID :250304231345
Magnitude (ML) :0.5 +/- 0.2
Origin Time :2025-03-04 23:14:05.219 (UTC)
Location : Latitude: 44.590 N, Longitude: 8.205 E
Area :Langhe
Depth (km) :12.83
Distances (km) : 1.3 --- Perletto
1.6 --- Cortemilia
3.3 --- Olmo Gentile
3.7 --- Castino
3.8 --- San Giorgio Scarampi
4.8 --- Bosia
4.9 --- Torre Bormida
5.0 --- Bergolo
5.3 --- Roccaverano
5.3 --- Vesime
5.7 --- Pezzolo Valle Uzzone
5.7 --- Rocchetta Belbo
5.8 --- Serole
6.5 --- Cravanzana
6.7 --- Borgomale
6.9 --- Levice
7.3 --- Cessole
7.6 --- Arguello
8.6 --- Cerreto Langhe
8.7 --- Lequio Berria

Quality location estimate: Erh: 1.1 km, Erz: 3.4 km, Nf: 20, Gap: 171 °, Rms: 0.21


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.
PCPGU2025-03-04 23:14:10.8030.0200-0.031.702025-03-04 23:14:14.7790.04000.021.6330.7
QLNOIV2025-03-04 23:14:11.5100.02810.011.742025-03-04 23:14:15.7450.0400-0.191.0434.3
CANOGU2025-03-04 23:14:13.0490.02000.091.492025-03-04 23:14:18.5110.04000.151.2744.7
GBOSGU2025-03-04 23:14:13.3170.0200-0.830.262025-03-04 23:14:19.7850.2396-0.380.7750.3
ROROGU2025-03-04 23:14:15.0500.07830.340.642025-03-04 23:14:21.3930.04000.031.4355.8
MGROGU2025-03-04 23:14:17.3260.0200-0.330.652025-03-04 23:14:25.5970.1002-0.790.3270.1
BHBGU2025-03-04 23:14:18.9230.0200-0.021.512025-03-04 23:14:28.6550.04000.071.2480.3
SAOFFR2025-03-04 23:14:20.1370.0803-0.121.292025-03-04 23:14:30.5060.1604-0.240.9785.7
PZZGU2025-03-04 23:14:20.6850.02000.410.552025-03-04 23:14:30.2920.0400-0.700.3987.9
TURFFR2025-03-04 23:14:22.5460.08030.590.292025-03-04 23:14:33.9300.24460.320.8195.0


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
PCP GUHH-0.061.14e-230.7101
QLNO IVHH0.492.99e-234.3159
CANO GUHH0.773.40e-244.7177
GBOS GUHH0.761.33e-250.3217
RORO GUHH0.409.17e-355.8192
MGRO GUHH0.557.93e-370.1208
BHB GUHH0.616.16e-380.3290
SAOF FRHH0.373.35e-385.7218
PZZ GUHH0.415.95e-387.9264
TURF FRHH0.523.73e-395.0224


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.
(°)
PCP GUHHZ1.3189e-61.7374e-78.1152e-82.7537e-81.2319e-83.1931e-63.5112e-72.1136e-84.1772e-930.7101
PCP GUHHN1.3447e-61.5882e-78.2618e-83.0546e-81.4018e-84.4043e-63.0791e-71.8391e-83.7623e-930.7101
PCP GUHHE1.4087e-61.7890e-71.0517e-72.6188e-81.4878e-83.9803e-65.5559e-72.2126e-84.1906e-930.7101
QLNO IVHHZ2.2003e-64.1164e-71.7324e-74.3062e-83.3286e-83.8152e-67.2210e-75.2956e-89.1364e-934.3159
QLNO IVHHN3.2732e-64.3454e-72.2775e-77.4239e-84.0628e-85.2195e-61.0642e-66.5231e-81.1662e-834.3159
QLNO IVHHE4.2729e-66.4821e-72.5593e-77.2118e-83.9785e-88.4209e-67.0103e-76.0450e-81.3097e-834.3159
CANO GUHHZ1.7306e-62.2215e-71.1124e-74.2486e-83.7290e-82.9084e-65.1319e-76.7534e-85.2533e-944.7177
CANO GUHHN2.5836e-63.2658e-72.1530e-78.1004e-83.4617e-84.7717e-61.2626e-65.4138e-88.0473e-944.7177
CANO GUHHE1.4521e-64.6267e-72.0851e-71.1638e-71.8879e-74.1158e-69.6979e-73.8710e-71.6276e-844.7177
GBOS GUHHZ9.5175e-71.2636e-75.7349e-81.6460e-89.2832e-93.3065e-62.8767e-71.3337e-82.9384e-950.3217
GBOS GUHHN1.3189e-61.8993e-71.0550e-72.9346e-81.7050e-83.3472e-63.0905e-73.0480e-85.1656e-950.3217
GBOS GUHHE1.3776e-62.0063e-79.1979e-81.9289e-81.3797e-83.3719e-63.0154e-72.7154e-84.2879e-950.3217
RORO GUHHZ1.0226e-61.4453e-77.6122e-82.1683e-81.1877e-83.0429e-62.5162e-71.8135e-83.4751e-955.8192
RORO GUHHN9.6049e-71.6815e-78.4332e-82.2732e-81.1015e-83.0626e-62.5782e-71.7792e-83.7312e-955.8192
RORO GUHHE1.0751e-61.6249e-77.8204e-82.3784e-81.5262e-82.2557e-63.2135e-72.1490e-83.6928e-955.8192
MGRO GUHHZ2.8733e-75.8697e-84.4013e-81.9982e-81.0921e-86.4111e-71.6646e-71.4682e-81.3973e-970.1208
MGRO GUHHN5.2641e-71.0240e-77.0649e-82.9364e-82.0609e-81.3533e-63.1907e-72.8618e-83.0705e-970.1208
MGRO GUHHE7.1672e-71.2769e-77.1121e-82.7469e-81.6358e-81.5799e-61.9473e-72.9288e-83.0521e-970.1208
BHB GUHHZ5.3511e-76.7259e-84.7582e-83.0939e-82.2852e-81.0781e-62.2455e-74.3322e-82.7753e-980.3290
BHB GUHHN6.3079e-79.0474e-85.7412e-82.0400e-81.3698e-81.6343e-62.3481e-72.4654e-82.7642e-980.3290
BHB GUHHE5.6860e-71.0335e-76.1629e-82.8994e-81.2158e-81.4913e-62.4453e-72.0549e-82.3317e-980.3290
SAOF FRHHZ1.0056e-72.6006e-82.1053e-81.3625e-89.4500e-92.6671e-71.1475e-71.3364e-89.7412e-1085.7218
SAOF FRHHN1.5190e-73.4814e-82.3692e-82.0689e-81.3289e-84.7420e-71.1237e-71.4163e-81.3008e-985.7218
SAOF FRHHE1.8693e-74.0736e-82.5122e-82.2175e-81.2898e-83.9161e-71.1974e-71.7911e-81.1562e-985.7218
PZZ GUHHZ4.8948e-78.0709e-85.9744e-82.0094e-81.1151e-81.2043e-63.5450e-71.5839e-81.9405e-987.9264
PZZ GUHHN4.4172e-77.2685e-85.9788e-82.4287e-81.4841e-81.1397e-63.0546e-72.0331e-81.7977e-987.9264
PZZ GUHHE4.2669e-77.5964e-86.0753e-82.1370e-81.2815e-81.1873e-63.6573e-71.6910e-81.9141e-987.9264
TURF FRHHZ1.2219e-72.3416e-81.8414e-81.4139e-81.3563e-84.3549e-71.1465e-71.8582e-81.1684e-995.0224
TURF FRHHN2.2725e-73.8466e-83.2262e-81.6443e-81.5031e-85.1731e-71.5944e-72.4490e-81.5387e-995.0224
TURF FRHHE1.9467e-73.3649e-82.5173e-81.7602e-81.5898e-86.4881e-71.1758e-72.5860e-81.1020e-995.0224
*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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