MANUAL Location - Area: Francia , magnitude (ML): 1.1
2025-08-26 22:14:45 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-08-27 09:02:41

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Earthquake info - Manual location
Event - ID :250826221328
Magnitude (ML) :1.1 +/- 0.2
Origin Time :2025-08-26 22:14:45.336 (UTC)
Location : Latitude: 44.332 N, Longitude: 6.460 E
Area :Francia
Depth (km) :8.02
Distances (km) : 38.6 --- Argentera
45.0 --- Acceglio
45.6 --- Pietraporzio
48.9 --- Sambuco
50.2 --- Prazzo
51.4 --- Canosio
52.2 --- Bellino
52.3 --- Marmora
55.1 --- Elva
55.5 --- Pontechianale
56.3 --- Casteldelfino
56.4 --- Stroppo
56.9 --- Vinadio
59.6 --- Celle di Macra
60.1 --- Macra
60.4 --- Castelmagno
60.4 --- Aisone
64.1 --- Sampeyre
65.5 --- San Damiano Macra
65.9 --- Pradleves

Quality location estimate: Erh: 1.5 km, Erz: 2.2 km, Nf: 39, Gap: 150 °, Rms: 0.26


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.
OGDIFR2025-08-26 22:14:51.7400.0160-0.021.422025-08-26 22:14:56.5570.0400-0.011.4232.1
SURFFR2025-08-26 22:14:52.3900.02210.291.302025-08-26 22:14:57.0400.09820.081.4633.5
ISOFR2025-08-26 22:14:55.3700.02610.231.422025-08-26 22:15:01.5600.1544-0.330.8850.6
OGAGFR2025-08-26 22:14:55.4900.02610.271.342025-08-26 22:15:01.8400.1965-0.241.0251.9
PZZGU2025-08-26 22:14:56.1000.0291-0.011.432025-08-26 22:15:03.1900.1665-0.520.6556.4
STVGU2025-08-26 22:14:58.2200.03510.141.482025-08-26 22:15:06.2940.2777-0.380.8570.2
RRLGU2025-08-26 22:14:58.5970.0200-0.111.242025-08-26 22:15:07.5700.2496-0.500.7171.2
ENRGU2025-08-26 22:14:59.4800.03910.041.452025-08-26 22:15:08.9800.2306-0.011.1777.7
TURFFR2025-08-26 22:15:01.2200.05720.311.182025-08-26 22:15:12.1490.04000.111.2784.6
BHBGU2025-08-26 22:15:00.9300.04320.291.232025-08-26 22:15:11.5400.04000.291.1185.1
ESCAFR2025-08-26 22:15:02.5900.06130.440.842025-08-26 22:15:15.5700.04001.520.0192.2
SAOFFR2025-08-26 22:15:03.0200.11150.031.362025-08-26 22:15:16.0920.04000.800.2895.7
GBOSGU2025-08-26 22:15:05.0500.05620.251.262025-08-26 22:15:17.3000.5319-0.700.55110.6
RSPGU2025-08-26 22:15:05.4850.02000.371.022025-08-26 22:15:18.0290.0400-0.760.44111.2
MGROGU2025-08-26 22:15:05.3100.1004-0.500.662025-08-26 22:15:19.2990.0400-0.650.55112.6
BIGNGU2025-08-26 22:15:05.6700.0914-0.221.05--:---.-----.---.-- 114.4
IMIGU2025-08-26 22:15:07.2700.0914-0.011.302025-08-26 22:15:22.1980.0400-0.290.94123.9
ROROGU2025-08-26 22:15:08.3400.06630.251.212025-08-26 22:15:23.2290.0400-0.650.57130.5
LATOIV2025-08-26 22:15:08.7410.02000.361.012025-08-26 22:15:23.9950.0400-0.380.84133.8
LSDGU2025-08-26 22:15:09.1800.0693-0.270.992025-08-26 22:15:24.5640.0400-1.500.08136.5


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
ISO FRHH0.611.84e-250.6109
OGAG FRHH0.883.22e-251.97
PZZ GUHH1.128.00e-256.469
STV GUHH1.222.52e-270.298
RRL GUHH1.091.81e-271.222
ENR GUHH1.385.87e-277.798
TURF FRHH1.031.56e-284.6118
BHB GUHH1.061.54e-285.148
ESCA FRHH1.201.93e-292.2127
SAOF FRHH1.061.27e-295.7113
RSP GUHH0.977.73e-3111.235
MGRO GUHH1.361.73e-2112.6106
IMI GUHH1.582.99e-2123.9112
RORO GUHH1.451.45e-2130.5100
LSD GUHH1.166.69e-3136.523


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.
(°)
ISO FRHHZ2.7755e-63.5806e-71.7254e-75.4643e-84.1724e-87.3540e-65.2943e-77.1103e-88.8013e-950.6109
ISO FRHHN3.0927e-63.5528e-71.8585e-75.0077e-82.3724e-87.2961e-67.1706e-73.6911e-87.1178e-950.6109
ISO FRHHE3.4689e-63.8026e-71.2767e-74.4840e-82.1965e-86.9592e-64.5267e-73.9371e-88.7522e-950.6109
OGAG FRHHZ9.1007e-72.7886e-71.8631e-71.0874e-74.1657e-83.7407e-69.7181e-75.8025e-87.3753e-951.97
OGAG FRHHN8.7679e-71.9330e-71.6597e-77.7490e-83.3404e-84.2172e-69.7853e-74.2044e-85.8130e-951.97
OGAG FRHHE1.0203e-62.8066e-72.3602e-71.6633e-75.6854e-82.1138e-61.0855e-67.1433e-89.2777e-951.97
PZZ GUHHZ7.6829e-61.1855e-66.5696e-71.6956e-71.0295e-73.0058e-52.1753e-61.5651e-72.6723e-856.469
PZZ GUHHN1.0249e-51.4835e-67.2124e-72.2114e-71.2978e-74.5134e-52.7762e-61.9717e-73.4536e-856.469
PZZ GUHHE9.8690e-61.5164e-67.7249e-72.3957e-79.6239e-82.4589e-52.8788e-61.5784e-73.3795e-856.469
STV GUHHZ2.8234e-63.9831e-72.8931e-71.0143e-74.4161e-85.8230e-61.1895e-66.5330e-81.1058e-870.298
STV GUHHN2.8010e-63.5190e-72.1172e-76.7596e-83.5284e-86.9501e-67.5359e-75.5850e-89.1075e-970.298
STV GUHHE2.8365e-64.5543e-72.3739e-76.3192e-83.3753e-88.5799e-61.2209e-64.6489e-89.9402e-970.298
RRL GUHHZ1.0129e-61.6087e-77.5805e-83.1071e-81.4919e-82.3570e-63.4607e-71.9503e-83.9234e-971.222
RRL GUHHN1.1585e-63.0085e-71.7995e-75.3744e-82.3009e-83.1449e-66.5950e-73.5213e-86.7719e-971.222
RRL GUHHE1.4620e-62.5214e-71.6055e-75.4486e-82.3235e-85.5212e-67.7019e-73.5303e-86.2596e-971.222
ENR GUHHZ5.6791e-66.2101e-72.4809e-77.9214e-84.4006e-81.3281e-59.4144e-77.3264e-81.3379e-877.798
ENR GUHHN1.2926e-51.3479e-64.9191e-71.9042e-78.7765e-81.8489e-52.6124e-61.3280e-72.5564e-877.798
ENR GUHHE1.3865e-51.4685e-65.0093e-71.6164e-77.8984e-82.0515e-52.5861e-61.2394e-72.7751e-877.798
TURF FRHHZ1.5832e-62.1596e-71.5821e-75.1414e-82.2333e-83.9911e-66.0595e-73.7911e-84.9142e-984.6118
TURF FRHHN1.0239e-61.9900e-71.3765e-75.8321e-82.5233e-83.3612e-65.8769e-73.6704e-84.5361e-984.6118
TURF FRHHE1.0303e-61.7177e-71.5190e-78.3728e-82.9083e-83.7537e-67.1552e-73.2366e-84.4839e-984.6118
BHB GUHHZ1.8634e-62.8711e-71.6110e-74.4241e-82.1914e-87.3841e-67.0680e-73.7353e-87.3243e-985.148
BHB GUHHN1.4410e-62.4030e-71.5418e-75.1566e-82.0331e-84.3389e-66.8081e-73.2091e-86.1211e-985.148
BHB GUHHE1.4782e-61.9575e-71.2403e-74.6021e-81.7889e-84.7727e-65.6310e-72.6310e-84.8135e-985.148
ESCA FRHHZ1.3980e-62.2241e-71.3617e-74.5269e-81.6978e-81.9508e-68.7078e-72.7845e-85.4358e-992.2127
ESCA FRHHN1.0976e-62.1296e-71.5974e-78.1593e-82.7990e-83.1304e-67.4154e-73.9391e-85.7320e-992.2127
ESCA FRHHE1.2606e-62.4437e-71.7721e-76.9786e-83.2659e-83.9503e-68.4091e-74.7809e-85.7442e-992.2127
SAOF FRHHZ8.5609e-71.6399e-71.1526e-73.8629e-81.7555e-82.2889e-66.1754e-72.4430e-83.9991e-995.7113
SAOF FRHHN5.7075e-71.1972e-79.8492e-85.6256e-81.8617e-82.1980e-64.6981e-72.3766e-83.0748e-995.7113
SAOF FRHHE7.6515e-71.2709e-71.2424e-75.2750e-82.5671e-82.3473e-66.3021e-73.1832e-84.1738e-995.7113
GBOS GUHHZ1.0539e-62.0032e-71.3345e-74.0504e-81.8635e-84.0719e-64.3804e-72.7042e-84.6359e-9110.695
GBOS GUHHN9.5075e-71.6459e-79.4537e-85.0999e-82.5525e-82.8079e-64.0996e-73.1808e-84.1126e-9110.695
GBOS GUHHE8.5164e-71.4815e-71.0490e-72.8616e-81.3803e-83.6859e-64.0990e-72.2190e-83.7189e-9110.695
RSP GUHHZ1.0596e-61.2987e-76.7512e-82.1279e-88.8717e-92.0835e-63.4308e-71.4500e-82.7438e-9111.235
RSP GUHHN7.9413e-71.1832e-77.9966e-82.7660e-81.0319e-81.7027e-63.6494e-71.4401e-82.9946e-9111.235
RSP GUHHE7.2440e-71.2532e-78.8085e-82.1121e-81.0130e-82.4181e-63.3404e-71.6287e-82.8676e-9111.235
MGRO GUHHZ1.3269e-62.4203e-71.5598e-75.6900e-81.9830e-84.3796e-69.1509e-72.7732e-85.4806e-9112.6106
MGRO GUHHN7.6119e-71.6669e-71.1970e-74.6296e-82.9761e-83.2799e-68.3372e-75.1107e-85.1087e-9112.6106
MGRO GUHHE1.1855e-62.3074e-71.3937e-75.1764e-81.9200e-84.0819e-65.6713e-73.0133e-85.5518e-9112.6106
IMI GUHHZ1.7651e-62.1318e-71.6733e-75.8915e-82.2568e-84.0304e-67.5023e-73.1475e-85.3073e-9123.9112
IMI GUHHN2.4982e-63.3730e-71.8408e-75.0541e-82.2728e-87.3133e-67.7414e-73.9265e-88.9856e-9123.9112
IMI GUHHE1.4037e-62.1484e-71.4288e-75.2753e-82.3321e-83.6297e-66.0678e-73.4305e-86.0784e-9123.9112
RORO GUHHZ7.6271e-71.2093e-78.7193e-82.5720e-81.2177e-81.8860e-64.1499e-71.9067e-82.9110e-9130.5100
RORO GUHHN6.4444e-71.4566e-79.3909e-82.4294e-81.2769e-82.6461e-66.0982e-71.7371e-83.3577e-9130.5100
RORO GUHHE6.9959e-71.3594e-78.5325e-82.2435e-81.2266e-81.9316e-63.0986e-71.9730e-83.4309e-9130.5100
LSD GUHHZ3.2257e-75.1508e-83.5895e-81.2971e-85.9810e-95.9288e-72.2420e-77.6359e-91.2868e-9136.523
LSD GUHHN2.8891e-75.0659e-84.6621e-81.7406e-86.1940e-97.1123e-73.1818e-78.1802e-91.3350e-9136.523
LSD GUHHE3.1397e-77.0180e-85.3828e-81.8088e-88.0606e-98.1772e-73.6229e-71.2534e-81.5864e-9136.523
*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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