MANUAL Location - Area: Alpi Marittime , magnitude (ML): 1.6
2025-07-29 18:26:38 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-07-29 18:45:38

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Earthquake info - Manual location
Event - ID :250729182606
Magnitude (ML) :1.6 +/- 0.1
Origin Time :2025-07-29 18:26:38.279 (UTC)
Location : Latitude: 44.062 N, Longitude: 7.638 E
Area :Alpi Marittime
Depth (km) :6.01
Distances (km) : 9.2 --- Briga Alta
12.7 --- Triora
13.4 --- Molini di Triora
13.4 --- Mendatica
14.3 --- Pigna
14.3 --- Montegrosso Pian Latte
15.0 --- Castel Vittorio
15.6 --- Cosio di Arroscia
16.3 --- Limone Piemonte
18.4 --- Pornassio
18.7 --- Baiardo
19.0 --- Rocchetta Nervina
19.3 --- Rezzo
20.0 --- Apricale
20.2 --- Isolabona
21.4 --- Carpasio
21.6 --- Perinaldo
22.0 --- Vernante
22.1 --- Airole
22.1 --- Montalto Ligure

Quality location estimate: Erh: 0.4 km, Erz: 0.8 km, Nf: 48, Gap: 58 °, Rms: 0.21


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.
MLIGIV2025-07-29 18:26:40.3190.0200-0.690.382025-07-29 18:26:41.5030.0400-1.620.0110.8
SAOFFR2025-07-29 18:26:41.0800.00600.051.672025-07-29 18:26:43.7960.04000.700.0412.5
MGROGU2025-07-29 18:26:41.4100.0080-0.530.352025-07-29 18:26:43.5600.0471-1.090.0415.8
BRDIT2025-07-29 18:26:42.1130.0200-0.380.622025-07-29 18:26:44.8090.0400-0.720.3720.5
TURFFR2025-07-29 18:26:43.0800.0120-0.071.732025-07-29 18:26:45.8600.0701-0.760.3222.7
PVTIT2025-07-29 18:26:43.1030.02000.091.442025-07-29 18:26:46.4850.0400-0.011.7223.7
BIGNGU2025-07-29 18:26:42.7700.0120-0.270.922025-07-29 18:26:45.8540.0732-0.610.4423.8
ENRGU2025-07-29 18:26:43.3100.0180-0.011.842025-07-29 18:26:46.7300.1033-0.051.5726.6
GBOSGU2025-07-29 18:26:43.5300.01800.041.692025-07-29 18:26:46.7610.4539-0.240.8426.6
IMIGU2025-07-29 18:26:43.4500.0140-0.101.592025-07-29 18:26:47.1400.0792-0.251.1227.3
SNRMIT2025-07-29 18:26:44.0470.02000.210.662025-07-29 18:26:47.9320.04000.131.2129.7
BURYGU2025-07-29 18:26:44.5000.01600.001.812025-07-29 18:26:48.6900.1003-0.181.3232.3
STVGU2025-07-29 18:26:44.3700.0211-0.021.812025-07-29 18:26:48.3000.2136-0.251.1032.9
ESCAFR2025-07-29 18:26:44.9460.02000.021.742025-07-29 18:26:49.4600.0400-0.121.5033.8
ROROGU2025-07-29 18:26:44.7940.0180-0.121.542025-07-29 18:26:50.0250.04000.490.1735.2
MVIFFR2025-07-29 18:26:46.9000.02210.141.112025-07-29 18:26:52.5500.2056-0.241.0943.4
VINDIV2025-07-29 18:26:46.6410.0200-0.161.382025-07-29 18:26:52.1610.0400-0.360.8246.4
ISOFR2025-07-29 18:26:47.6500.02510.320.402025-07-29 18:26:53.4950.1002-0.041.4149.3
QLNOIV2025-07-29 18:26:49.8300.0371-0.261.082025-07-29 18:26:57.7700.1905-0.520.6663.9
PZZGU2025-07-29 18:26:50.2100.03310.091.362025-07-29 18:26:58.3700.22860.051.0565.0
SURFFR2025-07-29 18:26:52.6800.0412-0.091.482025-07-29 18:27:01.8500.4349-0.920.3580.7
PCPGU2025-07-29 18:26:55.1500.04521.450.002025-07-29 18:27:07.1320.04002.690.0090.0
BHBGU2025-07-29 18:26:53.8900.08940.270.722025-07-29 18:27:04.2460.10020.131.0191.2


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.		 Dist. (km) Azimuth
SAOF FRHH1.461.79e+012.5219
MGRO GUHH1.471.21e+015.899
BRD ITHN1.528.39e-120.5158
ENR GUHH1.385.22e-126.6317
GBOS GUHH1.593.11e-126.639
IMI GUHH1.557.07e-127.3129
SNRM ITHN1.584.84e-129.7156
BURY GUHH1.362.48e-132.3192
STV GUHH1.612.88e-132.9310
RORO GUHH1.342.00e-135.281
QLNO IVHH1.571.03e-163.962
PZZ GUHH1.762.57e-165.0320
PCP GUHH1.819.00e-290.053
BHB GUHH1.736.12e-291.2341


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.
(°)
SAOF FRHHZ1.9579e-58.6189e-67.9703e-67.5407e-65.9237e-64.5939e-55.4245e-58.5826e-65.5396e-712.5219
SAOF FRHHN1.7915e-57.7649e-67.4814e-68.4804e-69.5217e-65.1388e-56.5181e-51.2771e-54.8945e-712.5219
SAOF FRHHE2.0497e-59.1688e-68.1951e-61.3612e-51.0019e-54.7571e-54.6573e-51.1042e-55.9537e-712.5219
MGRO GUHHZ1.0170e-55.3571e-65.2160e-65.0839e-63.5320e-62.1768e-53.0906e-55.3999e-62.2767e-715.899
MGRO GUHHN1.5242e-57.0467e-66.4410e-66.6271e-66.6743e-63.6047e-55.4566e-51.0562e-54.2488e-715.899
MGRO GUHHE1.1047e-55.2058e-64.2586e-64.7915e-63.1957e-62.4458e-51.8861e-53.9462e-62.2661e-715.899
BRD ITHNZ9.3224e-63.3539e-63.0571e-62.3924e-61.0268e-61.9099e-51.7302e-51.1962e-61.0549e-720.5158
BRD ITHNN1.9711e-56.3944e-66.1898e-64.9847e-62.0477e-62.6892e-52.6246e-52.4180e-62.2461e-720.5158
BRD ITHNE1.4483e-54.9132e-65.3818e-65.7141e-63.5405e-63.3713e-52.8110e-53.1827e-62.1038e-720.5158
TURF FRHHZ3.7211e-61.1763e-61.1854e-61.0016e-64.2433e-78.0431e-69.7676e-64.5316e-74.4770e-822.7244
TURF FRHHN7.7650e-61.5321e-61.6910e-61.0968e-66.6848e-72.2908e-51.0744e-57.3751e-75.1543e-822.7244
TURF FRHHE6.2678e-61.7221e-61.3901e-61.0327e-67.2158e-71.5859e-51.4631e-58.9358e-75.3289e-822.7244
PVT ITHNZ8.6342e-62.6406e-62.5131e-62.1650e-61.2425e-61.6985e-51.4619e-51.1965e-68.7317e-823.796
PVT ITHNN1.2494e-52.4785e-62.4385e-61.7413e-61.1221e-63.6596e-51.6069e-51.1067e-67.6820e-823.796
PVT ITHNE1.1964e-52.1947e-61.8109e-61.8496e-69.4420e-72.0302e-51.0491e-51.0233e-68.2399e-823.796
BIGN GUEHZ5.2187e-61.2293e-61.1038e-61.0947e-65.6567e-71.1660e-55.8992e-67.2649e-75.3664e-823.8159
BIGN GUEHN9.2510e-62.4914e-62.0842e-62.1626e-61.0384e-63.6361e-58.6987e-61.1504e-68.6354e-823.8159
BIGN GUEHE1.1090e-51.6735e-61.7991e-61.2820e-66.6542e-72.9978e-58.6420e-67.8296e-77.3976e-823.8159
ENR GUHHZ1.9049e-55.1685e-64.1722e-61.5998e-66.7876e-74.3081e-52.8494e-59.7197e-71.2497e-726.6317
ENR GUHHN1.8184e-54.3603e-63.7713e-62.6193e-61.3418e-65.2652e-52.0244e-51.6244e-61.6027e-726.6317
ENR GUHHE2.0283e-55.0336e-64.0339e-62.3679e-61.2218e-64.9090e-52.2429e-51.5529e-61.2378e-726.6317
GBOS GUHHZ4.9843e-61.2670e-61.3969e-61.0901e-65.3396e-71.4015e-58.4819e-65.4285e-74.6716e-826.639
GBOS GUHHN4.5229e-61.5536e-61.3110e-61.4226e-66.5379e-71.4573e-56.0955e-66.3672e-77.1951e-826.639
GBOS GUHHE5.9319e-62.0651e-61.7785e-62.1234e-61.2220e-61.0852e-58.8493e-61.3933e-69.7864e-826.639
IMI GUHHZ5.4291e-61.5983e-61.6928e-61.7770e-61.0045e-62.1003e-59.4171e-69.8464e-77.3753e-827.3129
IMI GUHHN1.3818e-55.1195e-64.8714e-64.4249e-61.9762e-64.2947e-52.4226e-52.1997e-61.9666e-727.3129
IMI GUHHE8.3622e-62.7897e-62.6879e-61.9811e-61.3733e-62.1402e-51.4800e-52.0155e-69.1830e-827.3129
SNRM ITHNZ7.2982e-62.3805e-62.5176e-62.1927e-61.0975e-61.6702e-51.6744e-51.2870e-69.3447e-829.7156
SNRM ITHNN1.1926e-54.4271e-63.9836e-62.6591e-61.2565e-62.7754e-53.1743e-51.5360e-61.3302e-729.7156
SNRM ITHNE1.1284e-52.8943e-63.1032e-62.7061e-61.5141e-62.5598e-52.0890e-51.5743e-69.5898e-829.7156
BURY GUHHZ4.4120e-61.2764e-61.4247e-61.1594e-64.3559e-78.6849e-68.5259e-65.4045e-74.6475e-832.3192
BURY GUHHN4.8901e-61.4564e-61.3655e-61.2371e-64.3777e-71.6721e-57.5887e-65.1055e-75.4380e-832.3192
BURY GUHHE5.4326e-61.8348e-61.6983e-61.3872e-64.5514e-71.4795e-57.3734e-64.8349e-75.9449e-832.3192
STV GUHHZ5.7673e-62.2111e-61.9633e-68.1909e-74.2580e-71.7796e-51.3518e-55.5484e-76.4630e-832.9310
STV GUHHN4.9923e-61.4036e-61.1832e-65.3485e-72.4165e-71.1273e-55.3603e-63.5611e-74.2760e-832.9310
STV GUHHE6.6665e-62.7331e-62.2532e-61.1872e-64.9387e-71.1458e-51.8070e-56.1770e-77.8330e-832.9310
ESCA FRHHZ2.4172e-68.2280e-76.8956e-75.0565e-72.1762e-76.9637e-63.1869e-62.4592e-72.2208e-833.8220
ESCA FRHHN3.6446e-61.1536e-69.8893e-75.2649e-72.4430e-77.8798e-66.1641e-62.8755e-73.4876e-833.8220
ESCA FRHHE3.9561e-61.3094e-61.0535e-68.5285e-73.7601e-71.0399e-54.4367e-63.9130e-73.1482e-833.8220
RORO GUHHZ3.4414e-61.4460e-61.2091e-61.8448e-69.6323e-78.2143e-66.0853e-61.1804e-67.1543e-835.281
RORO GUHHN4.6781e-61.7725e-61.4035e-68.9927e-75.9246e-71.1428e-57.0332e-66.4988e-75.7413e-835.281
RORO GUHHE4.3379e-61.4370e-61.3091e-61.0852e-65.5863e-71.1133e-57.8664e-67.1425e-74.6427e-835.281
ISO FRHHZ1.0629e-63.3184e-72.9699e-71.9922e-77.8002e-83.2304e-61.5562e-69.5353e-89.3798e-949.3286
ISO FRHHN1.4092e-63.5844e-72.6269e-71.7185e-78.6017e-86.9521e-61.5564e-61.1849e-78.6127e-949.3286
ISO FRHHE1.3052e-62.7538e-72.4220e-71.5246e-78.2460e-83.2334e-61.3998e-68.4786e-88.6663e-949.3286
QLNO IVHHZ1.3354e-67.8102e-75.5748e-78.2007e-74.0611e-74.6812e-63.0779e-63.6729e-72.9432e-863.962
QLNO IVHHN1.8862e-66.9201e-76.9914e-75.8448e-72.9258e-76.7337e-64.6137e-63.0616e-72.6740e-863.962
QLNO IVHHE2.1252e-67.5076e-78.6331e-76.7989e-73.1323e-76.4380e-65.6358e-63.7725e-72.7145e-863.962
PZZ GUHHZ4.2642e-61.7376e-61.5712e-67.8265e-73.0192e-78.4747e-61.0307e-54.0749e-74.5327e-865.0320
PZZ GUHHN4.3859e-61.9403e-61.7998e-61.2448e-64.4769e-71.0764e-51.1791e-55.1911e-76.0640e-865.0320
PZZ GUHHE5.7569e-61.3960e-61.4549e-68.2144e-72.9881e-78.6775e-65.7976e-63.6653e-74.4471e-865.0320
PCP GUHHZ1.1440e-64.9883e-74.5938e-74.5648e-72.6325e-72.3872e-62.8444e-63.6842e-72.0555e-890.053
PCP GUHHN1.5668e-67.0456e-76.1774e-75.0455e-71.8488e-73.0008e-63.7326e-62.0918e-72.4955e-890.053
PCP GUHHE1.4983e-65.9745e-75.7834e-74.7066e-72.7983e-72.4364e-64.7249e-62.8030e-72.3067e-890.053
BHB GUHHZ2.8248e-65.4255e-72.9790e-71.1739e-75.6082e-87.4812e-61.6181e-66.8927e-89.4056e-991.2341
BHB GUHHN1.6050e-65.4906e-75.0214e-72.3210e-71.0908e-74.7500e-64.6146e-61.1615e-71.4792e-891.2341
BHB GUHHE1.4394e-65.6246e-74.8401e-72.7766e-71.0629e-75.4068e-64.1799e-61.3029e-71.7919e-891.2341
*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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