MANUAL Location - Area: Francia , magnitude (ML): 1.5
2025-08-06 21:38:23 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-08-07 08:03:26

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Earthquake info - Manual location
Event - ID :250806213800
Magnitude (ML) :1.5 +/- 0.2
Origin Time :2025-08-06 21:38:23.494 (UTC)
Location : Latitude: 44.244 N, Longitude: 6.703 E
Area :Francia
Depth (km) :7.93
Distances (km) : 25.3 --- Argentera
28.5 --- Pietraporzio
31.4 --- Sambuco
34.5 --- Acceglio
38.2 --- Vinadio
38.4 --- Canosio
38.7 --- Prazzo
39.2 --- Marmora
41.8 --- Aisone
44.5 --- Castelmagno
44.6 --- Stroppo
45.1 --- Bellino
45.1 --- Elva
46.3 --- Celle di Macra
47.4 --- Macra
48.0 --- Demonte
48.3 --- Casteldelfino
49.4 --- Pontechianale
49.9 --- Pradleves
51.7 --- San Damiano Macra

Quality location estimate: Erh: 0.7 km, Erz: 1 km, Nf: 51, Gap: 111 °, Rms: 0.22


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.
SURFFR2025-08-06 21:38:29.3400.0140-0.031.722025-08-06 21:38:33.9050.04000.320.7428.9
ISOFR2025-08-06 21:38:29.6700.02000.011.732025-08-06 21:38:33.8100.0902-0.071.4729.8
VINDIV2025-08-06 21:38:31.3000.02000.011.702025-08-06 21:38:36.3590.0400-0.181.2539.1
OGDIFR2025-08-06 21:38:31.6900.02110.031.672025-08-06 21:38:37.3210.0400-0.440.7141.7
PZZGU2025-08-06 21:38:32.3100.02210.041.632025-08-06 21:38:38.2300.1344-0.241.1244.9
STVGU2025-08-06 21:38:33.0800.02510.320.752025-08-06 21:38:38.1200.3628-0.820.4250.4
MVIFFR2025-08-06 21:38:33.7400.02710.031.602025-08-06 21:38:40.9700.1615-0.330.9553.3
ENRGU2025-08-06 21:38:34.3100.02910.191.132025-08-06 21:38:41.8600.17350.590.3957.7
OGAGFR2025-08-06 21:38:35.0600.0311-0.051.542025-08-06 21:38:42.8190.1865-0.380.8962.5
TURFFR2025-08-06 21:38:35.4000.03210.061.522025-08-06 21:38:43.2280.4148-0.670.5763.1
ESCAFR2025-08-06 21:38:36.8200.03610.181.202025-08-06 21:38:45.5700.2146-0.460.7971.1
SAOFFR2025-08-06 21:38:37.3000.0371-0.141.342025-08-06 21:38:46.6000.3618-0.620.6274.2
RRLGU2025-08-06 21:38:37.4200.0381-0.101.412025-08-06 21:38:47.0000.2627-0.340.9176.2
BHBGU2025-08-06 21:38:37.9400.04010.131.322025-08-06 21:38:47.6210.0400-0.131.2279.8
MLIGIV2025-08-06 21:38:38.3110.0200-0.850.292025-08-06 21:38:49.8700.0400-0.191.1483.6
BURYGU2025-08-06 21:38:38.6700.0864-0.590.55--:---.-----.---.-- 85.7
GBOSGU2025-08-06 21:38:39.7900.04620.211.102025-08-06 21:38:50.6600.40280.240.8191.0
MGROGU2025-08-06 21:38:39.7100.0462-0.630.502025-08-06 21:38:51.5250.0400-0.490.7491.5
IMIGU2025-08-06 21:38:41.4900.0512-0.261.082025-08-06 21:38:55.2060.04000.770.26102.4
OGMOFR2025-08-06 21:38:42.5710.0200-0.161.252025-08-06 21:38:54.5960.0400-1.610.04107.5
ROROGU2025-08-06 21:38:42.8100.0552-0.051.352025-08-06 21:38:56.5840.04000.440.67110.0
RSPGU2025-08-06 21:38:43.1300.05520.111.272025-08-06 21:38:57.1270.04000.510.57110.3
QLNOIV2025-08-06 21:38:46.5000.06630.310.872025-08-06 21:39:01.3010.0400-0.950.32131.3
LSDGU2025-08-06 21:38:47.7900.0703-0.151.192025-08-06 21:39:04.8260.0400-0.041.00139.7
PCPGU2025-08-06 21:38:49.4500.07530.660.332025-08-06 21:39:06.8280.0400-0.060.97150.3


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.		 Dist. (km) Azimuth
PZZ GUHH1.382.30e-144.948
STV GUHH1.621.27e-150.490
ENR GUHH1.762.70e-157.791
OGAG FRHH1.275.38e-262.5348
TURF FRHH1.123.75e-263.1118
ESCA FRHH1.395.39e-271.1130
SAOF FRHH1.162.86e-274.2112
RRL GUHH1.514.07e-276.25
BHB GUHH1.303.04e-279.834
MGRO GUHH1.534.17e-291.5104
IMI GUHH1.818.32e-2102.4111
RORO GUHH1.906.27e-2110.097
RSP GUHH1.412.19e-2110.324
LSD GUHH1.631.85e-2139.714
PCP GUHH1.842.65e-2150.377


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 FRHHZ1.3897e-51.5024e-67.6483e-72.7421e-71.3310e-73.4304e-53.8765e-61.9190e-73.6365e-829.8103
ISO FRHHN2.2740e-52.4433e-68.3053e-72.8139e-71.4401e-73.2976e-52.2744e-62.3194e-75.1563e-829.8103
ISO FRHHE1.4716e-51.7114e-68.1986e-72.5543e-71.5300e-72.9042e-54.7622e-62.4970e-73.1917e-829.8103
PZZ GUHHZ1.7083e-52.6103e-61.5595e-64.4173e-72.0318e-77.5366e-57.1397e-63.3558e-76.1719e-844.948
PZZ GUHHN2.8371e-54.1750e-61.9466e-67.1561e-73.8049e-71.2284e-46.2705e-66.1476e-71.0438e-744.948
PZZ GUHHE2.7667e-54.7672e-62.0024e-68.0155e-73.4323e-79.8552e-51.1250e-55.1244e-79.7776e-844.948
STV GUHHZ1.0380e-51.5413e-69.5854e-73.4194e-71.6334e-72.8158e-55.2619e-62.3652e-73.4948e-850.490
STV GUHHN1.0463e-51.6202e-61.1946e-63.9069e-72.0657e-73.1909e-56.2649e-62.9882e-74.0890e-850.490
STV GUHHE1.1550e-51.6097e-69.1962e-73.2296e-71.1229e-72.1496e-54.9023e-61.6507e-73.2498e-850.490
ENR GUHHZ2.5097e-53.2216e-61.5027e-66.4582e-72.4541e-75.3057e-56.8328e-63.4629e-77.0436e-857.791
ENR GUHHN5.0640e-56.4718e-62.5203e-69.1627e-74.6215e-79.3031e-51.3699e-57.8290e-71.3635e-757.791
ENR GUHHE4.8461e-55.3993e-61.9573e-65.2751e-72.3435e-78.9032e-58.8132e-64.6087e-71.2158e-757.791
OGAG FRHHZ2.3000e-65.5211e-73.2255e-71.8879e-76.4929e-85.3200e-61.5200e-67.8556e-88.2501e-962.5348
OGAG FRHHN2.0891e-64.1231e-73.4118e-71.5847e-75.9324e-85.0779e-61.6067e-67.3646e-81.0438e-862.5348
OGAG FRHHE1.7800e-64.5436e-73.7700e-72.6726e-71.4132e-73.1022e-62.5315e-61.3216e-71.4827e-862.5348
TURF FRHHZ3.7643e-64.7878e-73.9913e-71.4529e-76.9015e-86.7938e-61.7719e-69.8025e-81.4845e-863.1118
TURF FRHHN4.0018e-65.6567e-73.8106e-71.0714e-75.0059e-81.1028e-51.5855e-67.3546e-81.2783e-863.1118
TURF FRHHE3.2453e-64.9495e-73.9087e-71.3643e-75.2697e-89.1584e-62.2660e-67.6487e-81.2977e-863.1118
ESCA FRHHZ4.3545e-67.4273e-73.8848e-71.3884e-75.0830e-89.4176e-61.9079e-67.2148e-81.1311e-871.1130
ESCA FRHHN4.9192e-67.3617e-74.6070e-71.4700e-76.1247e-81.6324e-51.9202e-68.9020e-81.6022e-871.1130
ESCA FRHHE4.4073e-68.2593e-75.2749e-71.5406e-78.3955e-81.0019e-51.7552e-61.2911e-72.1716e-871.1130
SAOF FRHHZ1.3409e-63.3639e-72.7014e-71.2878e-75.4316e-83.6688e-62.0753e-66.7025e-88.7012e-974.2112
SAOF FRHHN1.8957e-63.0398e-72.2735e-79.5128e-84.0892e-84.4997e-61.3053e-65.0081e-86.8677e-974.2112
SAOF FRHHE2.0145e-62.7838e-72.6448e-79.7584e-83.9485e-85.8122e-62.2143e-66.0179e-88.1965e-974.2112
RRL GUHHZ2.2955e-63.1644e-72.0123e-71.1615e-74.4784e-84.9516e-69.9451e-75.8519e-87.9114e-976.25
RRL GUHHN1.6647e-64.1284e-73.2150e-71.6686e-76.0225e-86.7735e-61.6349e-68.4807e-81.1766e-876.25
RRL GUHHE1.5241e-62.9183e-72.6439e-71.4643e-75.5867e-85.5625e-61.6767e-66.8058e-88.3673e-976.25
BHB GUHHZ4.2490e-67.1272e-73.7291e-71.2144e-74.9250e-81.8434e-51.5780e-67.4274e-81.3664e-879.834
BHB GUHHN2.6082e-64.5454e-73.1015e-71.0665e-74.8499e-89.5119e-61.2887e-66.2577e-81.0102e-879.834
BHB GUHHE3.1140e-64.4850e-72.8294e-71.3622e-74.7917e-81.0974e-51.3412e-66.1733e-81.0274e-879.834
GBOS GUHHZ6.3423e-61.2639e-67.5834e-72.4876e-71.2355e-71.9439e-53.9661e-61.7682e-73.1058e-891.090
GBOS GUHHN4.5245e-68.2625e-76.4682e-71.9225e-78.4065e-81.7481e-53.0243e-61.2306e-72.0818e-891.090
GBOS GUHHE8.0190e-61.4110e-68.9220e-72.8966e-71.1932e-72.7573e-53.1961e-61.6543e-72.7337e-891.090
MGRO GUHHZ2.8202e-63.0602e-72.3815e-71.5707e-77.4480e-84.9485e-61.3601e-68.5879e-88.0583e-991.5104
MGRO GUHHN3.0451e-64.9444e-73.4647e-71.2350e-75.0130e-85.9013e-62.1027e-67.3359e-81.4857e-891.5104
MGRO GUHHE2.3021e-64.4719e-73.3002e-71.2453e-74.4845e-86.6633e-61.7721e-66.3359e-89.4849e-991.5104
IMI GUHHZ7.6965e-61.0038e-63.9074e-71.3504e-75.9403e-81.4329e-52.0212e-68.7990e-82.0824e-8102.4111
IMI GUHHN1.2319e-51.3275e-66.5812e-72.2668e-71.1075e-71.8223e-54.4145e-61.5977e-73.1827e-8102.4111
IMI GUHHE5.8515e-68.5441e-75.3729e-71.7953e-78.3705e-81.9358e-52.6056e-61.1746e-71.9295e-8102.4111
RORO GUHHZ3.0145e-64.7365e-73.5236e-79.7621e-85.1340e-89.0023e-61.6347e-68.1642e-81.3094e-8110.097
RORO GUHHN3.2455e-66.2211e-74.6264e-71.1838e-75.4896e-88.9669e-61.6321e-68.7978e-81.6556e-8110.097
RORO GUHHE2.8729e-66.2210e-74.1802e-71.0386e-76.7069e-87.1392e-62.0328e-61.0284e-71.7399e-8110.097
RSP GUHHZ1.8154e-63.1194e-71.8426e-76.5496e-82.8685e-83.3181e-61.0057e-63.8498e-85.8910e-9110.324
RSP GUHHN1.5383e-62.3816e-72.0841e-77.2922e-83.2683e-83.4828e-68.1537e-74.5106e-86.4769e-9110.324
RSP GUHHE1.3651e-62.7062e-72.6579e-78.8817e-83.5670e-85.1479e-61.5602e-65.1504e-88.0971e-9110.324
QLNO IVHHZ1.5977e-64.0432e-73.0188e-71.2581e-74.5968e-84.3048e-61.7936e-66.7465e-88.4348e-9131.386
QLNO IVHHN2.2454e-65.0005e-73.4217e-71.3837e-75.7087e-88.0742e-61.4211e-67.1564e-81.2145e-8131.386
QLNO IVHHE1.9842e-65.1399e-74.6377e-71.8844e-77.6110e-87.2654e-62.9147e-61.1012e-71.5763e-8131.386
LSD GUHHZ5.7487e-71.5926e-71.3183e-73.7331e-81.5844e-81.6189e-67.2891e-72.4102e-83.8126e-9139.714
LSD GUHHN6.2536e-71.5543e-71.4151e-74.4637e-82.1536e-81.5249e-61.0859e-63.2039e-84.9702e-9139.714
LSD GUHHE4.7185e-71.2711e-71.3200e-74.3931e-81.8057e-81.2152e-61.1709e-62.6347e-83.8289e-9139.714
PCP GUHHZ1.3646e-61.8822e-71.4256e-78.4652e-84.0400e-83.1306e-69.6744e-74.6041e-85.9512e-9150.377
PCP GUHHN7.6005e-71.5126e-71.3215e-76.4716e-82.4200e-82.1104e-68.9562e-73.2853e-83.4703e-9150.377
PCP GUHHE9.2268e-71.6750e-71.4489e-74.3301e-82.2007e-82.4114e-61.3905e-63.4478e-84.9669e-9150.377
*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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