MANUAL Location - Area: Alpi Graie , magnitude (ML): 0.2
2025-08-10 22:54:50 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-08-11 09:25:06

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Earthquake info - Manual location
Event - ID :250810225324
Magnitude (ML) :0.2 +/- 0.2
Origin Time :2025-08-10 22:54:50.692 (UTC)
Location : Latitude: 45.232 N, Longitude: 7.373 E
Area :Alpi Graie
Depth (km) :9.43
Distances (km) : 0.9 --- Viu
6.2 --- Traves
6.3 --- Lemie
6.8 --- Pessinetto
7.3 --- Mezzenile
8.3 --- Germagnano
9.2 --- Ceres
9.4 --- Varisella
9.5 --- Monastero di Lanzo
9.7 --- Vallo Torinese
9.9 --- Lanzo Torinese
10.3 --- Val della Torre
10.4 --- Rubiana
10.5 --- Coassolo Torinese
10.8 --- Ala di Stura
11.5 --- Cafasse
11.9 --- Fiano
12.0 --- Usseglio
12.3 --- Balangero
12.5 --- Givoletto

Quality location estimate: Erh: 0.7 km, Erz: 0.6 km, Nf: 18, Gap: 144 °, Rms: 0.17


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.
LATOIV2025-08-10 22:54:53.6940.02000.011.912025-08-10 22:54:55.6210.0400-0.061.7113.9
RSPGU2025-08-10 22:54:53.9600.00800.021.842025-08-10 22:54:56.1700.0421-0.001.8416.6
LSDGU2025-08-10 22:54:57.3200.01700.300.432025-08-10 22:55:01.5200.10230.171.0033.5
CANIGU2025-08-10 22:54:57.4910.02000.270.492025-08-10 22:55:01.6130.0400-0.051.4835.1
CIROGU2025-08-10 22:54:58.4820.0200-1.020.102025-08-10 22:55:03.8790.0400-1.540.0645.4
BHBGU2025-08-10 22:54:58.0300.0200-0.750.162025-08-10 22:55:03.1890.2807-1.340.1446.1
OGMOFR2025-08-10 22:55:00.4880.02000.021.612025-08-10 22:55:07.1110.0400-0.131.0654.9
RRLGU2025-08-10 22:55:01.0540.0200-0.051.552025-08-10 22:55:07.7170.0400-0.700.2058.6
MRGEIV2025-08-10 22:55:02.4840.0200-0.101.312025-08-10 22:55:10.4900.0400-0.081.1165.5


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
RSP GUHH0.246.94e-216.6222
LSD GUHH0.241.77e-233.5324
CANI GUHH0.039.94e-335.148
CIRO GUHH0.387.11e-345.420
BHB GUHH-0.034.56e-346.1191
RRL GUHH0.122.92e-358.6233
MRGE IVHH0.395.41e-365.5338


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.
(°)
RSP GUHHZ5.8849e-67.9427e-72.9943e-77.4199e-84.6276e-81.2222e-51.1819e-68.1693e-81.6913e-816.6222
RSP GUHHN8.3843e-69.9218e-74.0055e-79.8766e-85.0360e-81.4545e-51.5672e-69.2208e-82.1437e-816.6222
RSP GUHHE8.8883e-61.2459e-65.6423e-71.4972e-78.0762e-81.6731e-52.1918e-61.3206e-72.2804e-816.6222
LSD GUHHZ2.0171e-62.2150e-79.4366e-85.1605e-82.1485e-83.7508e-63.4273e-73.0461e-85.2719e-933.5324
LSD GUHHN3.5213e-63.6315e-71.0448e-72.6917e-81.5065e-86.1337e-63.7017e-73.0407e-86.8406e-933.5324
LSD GUHHE3.6542e-64.5502e-71.2080e-75.4093e-82.3897e-84.3989e-64.2282e-74.0622e-88.6276e-933.5324
CANI GUHHZ2.6736e-62.7071e-76.8179e-81.8129e-88.5572e-93.2364e-61.9973e-71.8631e-85.0119e-935.148
CANI GUHHN2.0178e-62.0538e-75.1476e-81.4207e-87.2538e-92.8663e-62.0614e-71.5591e-84.1180e-935.148
CANI GUHHE3.3435e-63.2088e-77.1129e-83.1974e-81.3259e-84.5363e-63.0905e-72.0786e-86.0745e-935.148
CIRO GUHHZ1.0399e-69.5318e-83.5150e-81.1483e-85.8433e-91.2365e-61.6480e-79.7491e-92.0017e-945.420
CIRO GUHHN1.2332e-61.1559e-74.0661e-89.3896e-95.7147e-91.4528e-61.7342e-78.4500e-92.1331e-945.420
CIRO GUHHE1.6197e-61.8255e-75.2511e-81.5382e-88.3902e-92.8740e-61.6757e-71.7087e-83.4885e-945.420
BHB GUHHZ7.1064e-77.8149e-82.6553e-89.3484e-94.4394e-91.1700e-69.8575e-87.1413e-91.2452e-946.1191
BHB GUHHN5.9673e-77.1192e-84.0009e-81.4351e-85.7464e-91.3581e-61.8001e-79.3995e-91.6481e-946.1191
BHB GUHHE7.3944e-79.9144e-84.0096e-81.2597e-85.4930e-91.2593e-61.3671e-78.9947e-91.7264e-946.1191
RRL GUHHZ2.8136e-73.8566e-81.7400e-88.4665e-94.9485e-91.1229e-67.9654e-86.6235e-97.7717e-1058.6233
RRL GUHHN3.3313e-75.3725e-82.9128e-81.0952e-85.3416e-91.2594e-61.1243e-77.9606e-91.1305e-958.6233
RRL GUHHE2.0497e-73.6821e-82.2528e-81.1241e-85.5695e-98.8518e-71.3978e-77.9884e-91.3515e-958.6233
MRGE IVHHZ9.0538e-78.8041e-82.3923e-81.3166e-86.2352e-95.0965e-71.3560e-77.7806e-91.7792e-965.5338
MRGE IVHHN1.4104e-61.2579e-73.3953e-82.1626e-81.3896e-81.5356e-61.3433e-71.7237e-83.2916e-965.5338
MRGE IVHHE8.4228e-79.4508e-82.8851e-81.9874e-81.1815e-87.1094e-71.1754e-71.3844e-81.6290e-965.5338
*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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