MANUAL Location - Area: Alpi Cozie , magnitude (ML): 0.3
2025-08-14 18:10:01 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-08-14 19:40:17

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Earthquake info - Manual location
Event - ID :250814180914
Magnitude (ML) :0.3 +/- 0.2
Origin Time :2025-08-14 18:10:01.293 (UTC)
Location : Latitude: 44.611 N, Longitude: 7.179 E
Area :Alpi Cozie
Depth (km) :11.73
Distances (km) : 3.6 --- Sampeyre
7.5 --- Oncino
8.6 --- Frassino
8.9 --- Casteldelfino
9.3 --- Ostana
10.1 --- Crissolo
10.5 --- Elva
11.3 --- Paesana
11.7 --- Sanfront
12.0 --- Pontechianale
12.2 --- Macra
12.2 --- Stroppo
12.2 --- Melle
13.3 --- Bellino
13.5 --- Gambasca
14.1 --- Celle di Macra
14.2 --- Rifreddo
14.7 --- San Damiano Macra
14.7 --- Martiniana Po
15.0 --- Brossasco

Quality location estimate: Erh: 1.1 km, Erz: 1.6 km, Nf: 22, Gap: 113 °, Rms: 0.33


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.
PZZGU2025-08-14 18:10:05.2000.00900.471.112025-08-14 18:10:07.1650.0611-0.021.3818.2
BHBGU2025-08-14 18:10:07.0600.01500.481.112025-08-14 18:10:10.1400.0922-0.041.3328.6
SURFFR2025-08-14 18:10:08.3600.01800.471.052025-08-14 18:10:12.7290.10930.021.1934.5
VINDIV2025-08-14 18:10:07.7660.02000.041.252025-08-14 18:10:11.9270.0400-0.320.8635.4
STVGU2025-08-14 18:10:09.1750.02000.091.022025-08-14 18:10:14.2500.1755-0.270.9744.1
ENRGU2025-08-14 18:10:09.6500.0623-0.071.382025-08-14 18:10:14.4700.1394-1.140.0248.2
RRLGU2025-08-14 18:10:10.5310.02000.480.962025-08-14 18:10:16.1100.1524-0.101.1748.2
ISOFR2025-08-14 18:10:10.9750.02000.680.312025-08-14 18:10:16.5900.20460.101.0250.1
OGAGFR2025-08-14 18:10:11.2500.0200-0.221.172025-08-14 18:10:18.5140.0400-0.201.1555.8
RSPGU2025-08-14 18:10:12.5720.02000.560.792025-08-14 18:10:19.3630.0400-0.211.1361.5
GBOSGU2025-08-14 18:10:12.5580.0200-0.241.122025-08-14 18:10:20.3700.1975-0.500.5367.7


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
PZZ GUHH0.015.45e-218.2203
BHB GUHH0.121.64e-228.615
STV GUHH0.671.86e-244.1164
RRL GUHH0.459.33e-348.2318
ISO FRHH0.126.00e-350.1192
OGAG FRHH0.276.85e-355.8292
RSP GUHH0.215.19e-361.56


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 GUHHZ8.1423e-69.5030e-74.7514e-71.3433e-77.1352e-81.1540e-52.9942e-61.0944e-72.1126e-818.2203
PZZ GUHHN9.6085e-61.1035e-64.0295e-71.3615e-76.4626e-81.5426e-51.6375e-61.0612e-72.1476e-818.2203
PZZ GUHHE1.1747e-51.1000e-65.3265e-71.3049e-76.7476e-81.0259e-52.9717e-61.1124e-72.2120e-818.2203
BHB GUHHZ5.1969e-65.5680e-71.3590e-74.8068e-81.9681e-87.0224e-66.6334e-74.0353e-81.1736e-828.615
BHB GUHHN2.9936e-62.9257e-71.0763e-73.2480e-81.8095e-84.9586e-64.4541e-72.8623e-86.1090e-928.615
BHB GUHHE3.8080e-64.2778e-71.3346e-73.9790e-81.8801e-86.4808e-64.9842e-73.3459e-89.1842e-928.615
STV GUHHZ1.5625e-61.8373e-78.2079e-82.9387e-81.2894e-82.8646e-63.4732e-72.2558e-84.2313e-944.1164
STV GUHHN1.2561e-61.7488e-76.2085e-82.3342e-81.2926e-82.6864e-62.7697e-71.6425e-83.6132e-944.1164
STV GUHHE2.0076e-63.0762e-71.4064e-74.3103e-82.5770e-83.3056e-66.4014e-73.7063e-86.7374e-944.1164
ENR GUHHZ9.8513e-69.3182e-72.8677e-77.7844e-84.5317e-81.0295e-51.2381e-69.0434e-81.6477e-848.2156
ENR GUHHN3.5637e-52.7969e-63.0644e-79.8856e-85.6176e-81.3726e-51.3151e-61.6416e-75.3053e-848.2156
ENR GUHHE4.1060e-53.2372e-64.8278e-71.0811e-77.0959e-82.7990e-51.5483e-61.9602e-75.1716e-848.2156
RRL GUHHZ5.5249e-76.9440e-83.5093e-81.6736e-88.2224e-91.0295e-61.5978e-71.1490e-81.4058e-948.2318
RRL GUHHN1.0746e-61.9333e-77.4715e-81.9937e-81.2214e-82.7729e-62.8235e-71.9250e-84.4121e-948.2318
RRL GUHHE8.7778e-71.3478e-76.3972e-82.3840e-81.0682e-83.1445e-62.9354e-71.6217e-82.7388e-948.2318
ISO FRHHZ5.5569e-78.5538e-83.3634e-88.9038e-95.5944e-91.3956e-61.4509e-78.1405e-91.8682e-950.1192
ISO FRHHN7.3747e-76.9262e-82.2861e-85.8747e-94.7182e-91.0559e-61.3734e-78.1286e-91.4491e-950.1192
ISO FRHHE1.0128e-61.5484e-74.6272e-81.2247e-86.9840e-93.3830e-61.5839e-71.4105e-83.0475e-950.1192
OGAG FRHHZ1.8447e-74.1941e-83.6185e-81.9762e-89.4193e-97.8314e-71.8880e-71.3215e-81.2763e-955.8292
OGAG FRHHN2.5093e-75.8341e-84.6119e-82.3864e-81.1193e-86.4498e-72.7325e-71.3722e-81.6629e-955.8292
OGAG FRHHE3.0206e-75.9905e-85.3693e-83.6641e-81.5895e-84.8770e-74.2287e-71.8168e-82.0701e-955.8292
RSP GUHHZ8.3419e-79.8944e-83.9968e-81.2578e-85.6351e-91.3280e-61.5097e-79.2499e-91.9967e-961.56
RSP GUHHN9.5217e-71.0986e-74.8310e-81.3152e-87.6005e-92.1193e-61.2704e-71.0452e-82.2621e-961.56
RSP GUHHE9.7618e-71.0979e-74.7881e-81.2832e-87.0849e-92.6154e-61.8552e-71.2066e-82.5422e-961.56
GBOS GUHHZ7.7047e-72.0244e-71.4031e-73.3346e-81.7637e-82.5026e-67.1666e-72.7672e-84.6544e-967.7128
GBOS GUHHN7.7241e-71.6574e-71.0411e-72.4738e-81.2794e-82.2090e-65.2936e-71.8023e-84.0289e-967.7128
GBOS GUHHE5.1125e-78.4194e-85.2507e-81.9795e-89.2796e-91.7894e-62.1927e-71.2733e-82.2630e-967.7128
*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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