MANUAL Location - Area: Alpi Cozie , magnitude (ML): 0.8
2025-07-29 02:18:42 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-07-29 08:24:53

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Earthquake info - Manual location
Event - ID :250729021815
Magnitude (ML) :0.8 +/- 0.2
Origin Time :2025-07-29 02:18:42.038 (UTC)
Location : Latitude: 44.937 N, Longitude: 7.239 E
Area :Alpi Cozie
Depth (km) :14.59
Distances (km) : 1.1 --- Pinasca
1.9 --- Inverso Pinasca
2.2 --- Villar Perosa
4.1 --- San Germano Chisone
4.1 --- Pramollo
4.6 --- Perosa Argentina
5.1 --- Pomaretto
5.9 --- Porte
6.5 --- San Pietro Val Lemina
7.4 --- Roletto
7.6 --- Cantalupa
8.1 --- Prarostino
8.8 --- Frossasco
8.9 --- Pinerolo
9.1 --- San Secondo di Pinerolo
9.8 --- Perrero
10.3 --- Angrogna
11.2 --- Roure
12.0 --- Cumiana
12.7 --- Osasco

Quality location estimate: Erh: 0.8 km, Erz: 0.8 km, Nf: 24, Gap: 96 °, Rms: 0.40


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.
BHBGU2025-07-29 02:18:45.2800.0080-0.411.162025-07-29 02:18:46.8300.0471-1.360.0819.0
RSPGU2025-07-29 02:18:47.2500.0130-0.001.482025-07-29 02:18:50.2600.0812-0.631.1328.5
RRLGU2025-07-29 02:18:49.3880.02000.021.422025-07-29 02:18:53.7690.1153-0.601.1439.2
LATOIV2025-07-29 02:18:49.7730.0200-0.411.172025-07-29 02:18:55.2290.0400-0.740.9546.4
PZZGU2025-07-29 02:18:50.9600.0251-0.041.292025-07-29 02:18:56.5850.1715-0.760.8851.3
OGMOFR2025-07-29 02:18:52.0260.02000.011.332025-07-29 02:18:58.4300.1675-0.451.1355.0
MONCIV2025-07-29 02:18:53.1840.0200-0.031.252025-07-29 02:19:01.8210.2777-0.030.9558.2
OGAGFR2025-07-29 02:18:52.5300.0311-0.411.142025-07-29 02:18:59.7600.2967-0.800.8059.7
LSDGU2025-07-29 02:18:52.8400.03510.101.082025-07-29 02:18:59.4200.1825-0.780.8461.1
SURFFR2025-07-29 02:18:53.4900.03110.240.502025-07-29 02:19:00.7500.1865-0.531.0962.6
ENRGU2025-07-29 02:18:54.6090.0200-0.701.032025-07-29 02:19:02.7900.4639-1.900.0881.4
MRGEIV2025-07-29 02:18:58.6520.02000.071.052025-07-29 02:19:09.3310.0400-0.601.0395.1


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
BHB GUHH1.063.03e-119.0170
RSP GUHH0.809.25e-228.55
RRL GUHH0.692.44e-239.2267
PZZ GUHH0.754.16e-251.3192
OGAG FRHH0.448.69e-359.7254
LSD GUHH0.791.87e-261.1352
ENR GUHH0.871.66e-281.4170
MRGE IVHH0.694.67e-395.1352


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.
(°)
BHB GUHHZ4.1038e-54.7490e-61.7571e-64.1422e-72.0500e-78.7494e-57.0600e-64.0410e-79.7708e-819.0170
BHB GUHHN4.7316e-55.4702e-62.5119e-66.1149e-73.3793e-79.9620e-57.7003e-66.0130e-71.3164e-719.0170
BHB GUHHE4.3576e-56.6280e-62.3072e-65.4367e-73.1916e-71.5186e-48.4927e-65.9614e-71.3033e-719.0170
RSP GUHHZ1.1935e-51.4297e-64.1581e-71.2976e-77.0431e-81.9981e-51.6045e-61.1614e-72.7215e-828.55
RSP GUHHN2.4813e-52.8902e-66.7048e-71.8869e-79.6373e-84.3095e-52.4609e-62.0138e-75.5840e-828.55
RSP GUHHE1.4325e-51.6481e-64.6895e-71.4348e-77.6310e-83.0636e-51.4663e-61.4983e-73.6916e-828.55
RRL GUHHZ2.3336e-63.2416e-71.1858e-73.9168e-81.8864e-85.0077e-67.1422e-72.8645e-86.6398e-939.2267
RRL GUHHN2.3517e-63.3331e-71.8426e-76.0780e-82.7425e-88.1872e-68.4213e-73.9202e-86.3194e-939.2267
RRL GUHHE1.9847e-63.6125e-72.0718e-75.4350e-82.9550e-84.6493e-61.0133e-64.5707e-87.2358e-939.2267
PZZ GUHHZ4.5703e-67.0557e-73.9694e-71.0184e-75.9614e-86.9529e-61.7226e-69.9559e-81.7570e-851.3192
PZZ GUHHN2.7764e-64.7131e-73.2431e-78.2572e-84.2498e-86.9758e-61.4770e-66.0541e-81.0412e-851.3192
PZZ GUHHE3.1171e-65.8340e-74.2872e-71.2482e-75.9072e-88.5542e-62.3335e-68.1868e-81.3311e-851.3192
MONC IVHHZ9.7428e-71.4024e-71.0763e-78.9893e-88.2177e-82.5539e-66.2372e-71.3429e-71.5711e-858.274
MONC IVHHN1.6603e-62.0637e-71.9778e-79.3066e-83.5331e-81.8338e-69.6643e-74.5464e-85.9100e-958.274
MONC IVHHE1.2129e-11.8634e-21.4117e-21.4093e-21.1990e-21.8597e-16.9102e-21.9374e-21.3146e-358.274
OGAG FRHHZ5.8633e-71.1963e-77.0093e-82.2648e-81.4075e-81.8662e-63.6914e-72.5622e-83.4872e-959.7254
OGAG FRHHN4.2468e-77.9041e-88.1473e-84.2514e-81.9213e-81.1250e-63.4671e-72.6837e-82.6060e-959.7254
OGAG FRHHE3.5956e-77.9228e-85.9645e-84.5300e-82.1447e-88.0424e-73.5462e-72.6326e-81.9085e-959.7254
LSD GUHHZ2.2223e-63.1684e-71.3451e-74.2062e-82.9171e-82.4354e-64.2826e-73.5552e-86.1307e-961.1352
LSD GUHHN2.6010e-64.0310e-71.4250e-73.5260e-82.1834e-82.6664e-65.1490e-73.3191e-87.9314e-961.1352
LSD GUHHE2.9493e-63.0461e-71.7798e-76.5969e-83.0426e-85.2027e-65.4762e-74.1543e-87.8413e-961.1352
ENR GUHHZ1.8242e-61.5880e-76.7047e-83.0661e-82.7957e-82.6528e-62.2756e-74.1751e-83.4335e-981.4170
ENR GUHHN3.5413e-63.4127e-78.8044e-83.3946e-82.6429e-85.2806e-62.8025e-74.5756e-86.4814e-981.4170
ENR GUHHE5.5717e-65.6612e-71.2653e-73.8864e-82.5945e-86.8571e-64.0844e-74.2279e-81.1088e-881.4170
MRGE IVHHZ6.3390e-76.4670e-82.8891e-81.1434e-86.1791e-96.7880e-71.2583e-79.5141e-91.4694e-995.1352
MRGE IVHHN1.0950e-61.2762e-74.1325e-81.7054e-81.0944e-81.7495e-61.3118e-71.6087e-82.6781e-995.1352
MRGE IVHHE6.6862e-77.9339e-83.7026e-81.7965e-88.9599e-98.4098e-71.6823e-71.1102e-81.8009e-995.1352
*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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