MANUAL Location - Area: Alpi Marittime , magnitude (ML): 0.9
2025-12-06 19:20:49 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-12-09 07:57:50

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Earthquake info - Manual location
Event - ID :251206192024
Magnitude (ML) :0.9 +/- 0.2
Origin Time :2025-12-06 19:20:49.317 (UTC)
Location : Latitude: 44.062 N, Longitude: 7.788 E
Area :Alpi Marittime
Depth (km) :3.57
Distances (km) : 2.3 --- Mendatica
2.4 --- Montegrosso Pian Latte
3.9 --- Cosio di Arroscia
4.0 --- Briga Alta
6.5 --- Pornassio
7.8 --- Triora
7.9 --- Molini di Triora
8.0 --- Rezzo
10.2 --- Pieve di Teco
10.5 --- Armo
12.8 --- Carpasio
13.7 --- Aurigo
13.9 --- Vessalico
14.4 --- Ormea
14.7 --- Caprauna
15.4 --- Montalto Ligure
15.4 --- Borghetto d Arroscia
15.6 --- Caravonica
15.7 --- Borgomaro
15.9 --- Cesio

Quality location estimate: Erh: 0.5 km, Erz: 0.5 km, Nf: 50, Gap: 38 °, Rms: 0.25


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.
MGROGU2025-12-06 19:20:50.8700.0020-0.081.492025-12-06 19:20:51.7200.0180-0.471.075.9
PVTIT2025-12-06 19:20:52.0630.02000.071.482025-12-06 19:20:53.5950.0400-0.481.0311.7
MLIGIV2025-12-06 19:20:52.3170.02000.051.592025-12-06 19:20:54.1620.0400-0.381.0412.2
BRDIT2025-12-06 19:20:53.4500.0200-0.011.802025-12-06 19:20:56.1470.0400-0.451.0419.2
IMIGU2025-12-06 19:20:53.3700.0140-0.051.652025-12-06 19:20:56.0200.0581-0.590.6019.3
SAOFFR2025-12-06 19:20:54.4860.02000.670.272025-12-06 19:20:56.8830.1153-0.330.9920.8
GBOSGU2025-12-06 19:20:53.8400.05420.130.982025-12-06 19:20:56.5700.0621-0.181.0220.9
BIGNGU2025-12-06 19:20:54.0600.01100.051.612025-12-06 19:20:56.9780.2306-0.580.6322.1
ROROGU2025-12-06 19:20:54.0700.0120-0.031.762025-12-06 19:20:57.3000.0681-0.240.9623.2
GARSIT2025-12-06 19:20:54.1820.02000.041.702025-12-06 19:20:57.4980.0400-0.041.5424.5
DNSPIT2025-12-06 19:20:54.7870.02000.011.772025-12-06 19:20:58.4870.0400-0.391.0127.3
TURFFR2025-12-06 19:20:56.6970.02000.340.462025-12-06 19:21:01.0130.1013-0.380.9633.3
ENRGU2025-12-06 19:20:56.0200.0200-0.061.542025-12-06 19:21:00.7800.1063-0.081.3035.2
BURYGU2025-12-06 19:20:56.8720.02000.410.432025-12-06 19:21:01.3500.1103-0.301.0336.3
ESCAFR2025-12-06 19:20:58.3790.02000.630.302025-12-06 19:21:03.8000.0400-0.011.3342.1
STVGU2025-12-06 19:20:57.3100.0211-0.021.632025-12-06 19:21:02.5200.1283-0.390.9442.4
QLNOIV2025-12-06 19:20:59.2200.0271-0.381.002025-12-06 19:21:05.6600.1594-1.210.0653.3
MVIFFR2025-12-06 19:21:00.3100.02000.320.522025-12-06 19:21:07.1570.1002-0.460.8354.2
VINDIV2025-12-06 19:20:59.8140.02000.031.462025-12-06 19:21:06.5140.0400-0.440.8856.2
ISOFR2025-12-06 19:21:00.9580.02000.410.452025-12-06 19:21:08.5300.18750.180.9160.6
PZZGU2025-12-06 19:21:02.7100.03710.031.342025-12-06 19:21:11.8500.2196-0.181.0373.0
PCPGU2025-12-06 19:21:04.0000.04020.690.262025-12-06 19:21:14.0080.04000.780.2180.5
SURFFR2025-12-06 19:21:05.7900.04520.101.142025-12-06 19:21:16.5900.3077-0.550.6790.6
BHBGU2025-12-06 19:21:05.9500.04820.360.572025-12-06 19:21:17.1900.37780.380.6495.6


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.		 Dist. (km) Azimuth
PVT ITHN0.733.73e-111.7102
BRD ITHN1.083.45e-119.2195
IMI GUHH0.892.96e-119.3153
SAOF FRHH0.375.74e-220.8246
GBOS GUHH0.911.01e-120.912
BIGN GUEH0.841.51e-122.1191
RORO GUHH0.791.24e-123.276
GARS ITHN0.981.72e-124.549
DNSP ITHN1.031.58e-127.3123
TURF FRHH0.735.50e-233.3253
ENR GUHH1.222.08e-135.2302
BURY GUHH1.251.52e-136.3211
ESCA FRHH0.662.94e-242.1232
STV GUHH0.994.22e-242.4299
QLNO IVHH0.913.25e-253.357
ISO FRHH0.417.91e-360.6283
PZZ GUHH1.124.56e-273.0313
PCP GUHH0.971.68e-280.548
BHB GUHH1.151.42e-295.6334


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.
(°)
MGRO GUHHZ4.1221e-46.0293e-51.9287e-54.9065e-63.1030e-61.2162e-35.5096e-55.2314e-61.2154e-65.9143
MGRO GUHHN1.0231e-31.4548e-44.7660e-51.6078e-51.0498e-51.4710e-31.9548e-41.6291e-53.4651e-65.9143
MGRO GUHHE1.3423e-31.5259e-43.6531e-51.0439e-56.2778e-61.8089e-31.4973e-41.0538e-52.8609e-65.9143
PVT ITHNZ8.9283e-57.5400e-62.5326e-69.3043e-74.1355e-78.4381e-51.4616e-55.5918e-71.4827e-711.7102
PVT ITHNN8.2245e-57.5204e-63.0176e-69.4742e-75.1766e-71.1409e-41.1874e-58.9496e-71.8941e-711.7102
PVT ITHNE1.2616e-41.0089e-52.6507e-67.3789e-74.2689e-79.9919e-51.2506e-59.3603e-72.3292e-711.7102
BRD ITHNZ1.1598e-52.3310e-61.1901e-66.9316e-73.3148e-74.4991e-54.8276e-63.9674e-75.6768e-819.2195
BRD ITHNN2.7147e-54.7736e-63.0194e-61.0672e-65.8972e-76.6547e-51.2384e-58.2411e-71.3003e-719.2195
BRD ITHNE1.4700e-53.0115e-62.1755e-69.4790e-75.1030e-73.8830e-51.3111e-55.8396e-77.0860e-819.2195
IMI GUHHZ2.3004e-53.0646e-61.0668e-64.1810e-71.8400e-73.8414e-57.2691e-62.8605e-76.8680e-819.3153
IMI GUHHN7.7274e-58.2776e-62.8337e-67.9311e-74.5398e-71.0969e-41.0497e-57.9772e-71.4711e-719.3153
IMI GUHHE3.9552e-54.7587e-61.6840e-65.7811e-72.2952e-74.4736e-57.6147e-64.1634e-78.5180e-819.3153
SAOF FRHHZ2.4753e-65.3912e-74.4998e-72.6903e-71.2701e-75.1893e-62.1190e-61.3092e-71.3968e-820.8246
SAOF FRHHN3.2486e-66.6550e-74.5456e-72.7704e-71.1929e-75.5336e-63.3907e-61.6029e-71.5795e-820.8246
SAOF FRHHE3.2306e-65.1350e-74.1911e-72.4270e-71.1692e-76.2929e-63.0314e-61.3354e-71.4535e-820.8246
GBOS GUHHZ1.4103e-53.3733e-61.4796e-65.2464e-72.9042e-74.5756e-57.7562e-64.6549e-78.3519e-820.912
GBOS GUHHN9.8368e-61.7268e-68.6451e-73.2421e-71.4337e-72.3429e-53.7956e-62.0107e-73.5554e-820.912
GBOS GUHHE8.9354e-61.1895e-67.6312e-72.3432e-71.1127e-73.6032e-53.7366e-61.5960e-72.5788e-820.912
BIGN GUEHZ8.1565e-61.6502e-67.2607e-73.0783e-71.9341e-72.0348e-53.9221e-62.7679e-73.4334e-822.1191
BIGN GUEHN2.2822e-53.3804e-61.5558e-64.8364e-72.7262e-74.0713e-55.3291e-63.7211e-76.5829e-822.1191
BIGN GUEHE2.0699e-52.4961e-61.1071e-63.7131e-71.5798e-74.0385e-55.2903e-62.7348e-76.0572e-822.1191
RORO GUHHZ9.7445e-61.7020e-69.0457e-72.5876e-71.5377e-73.2596e-52.9460e-62.4954e-74.5144e-823.276
RORO GUHHN1.2270e-52.1250e-61.2754e-62.9990e-71.8113e-73.1260e-55.4798e-63.1489e-75.5014e-823.276
RORO GUHHE1.0913e-51.8488e-69.5386e-72.2140e-71.1052e-72.6485e-54.6182e-61.7852e-73.9412e-823.276
GARS ITHNZ7.8909e-69.0906e-76.3208e-73.3569e-71.9007e-71.6664e-53.1961e-62.0416e-72.3095e-824.549
GARS ITHNN1.2048e-52.7466e-61.7424e-64.8422e-72.3993e-74.9149e-59.8667e-63.4296e-76.3265e-824.549
GARS ITHNE1.1345e-52.0374e-61.3179e-64.1206e-71.8378e-73.0579e-56.3536e-62.6410e-75.3805e-824.549
DNSP ITHNZ1.2558e-51.9756e-61.1086e-64.1542e-72.2263e-73.5523e-56.7711e-63.4816e-74.2670e-827.3123
DNSP ITHNN2.4610e-53.1617e-61.4354e-66.0469e-73.0006e-75.5657e-58.7653e-64.4071e-77.0568e-827.3123
DNSP ITHNE1.7700e-52.3502e-61.3852e-64.7034e-72.4232e-74.9477e-56.3366e-63.2891e-75.7566e-827.3123
TURF FRHHZ2.4726e-64.3346e-72.0019e-71.0618e-73.9074e-85.0576e-69.9795e-75.2223e-89.1908e-933.3253
TURF FRHHN6.6553e-61.0516e-64.2517e-71.3884e-78.7530e-81.5331e-52.0766e-61.4083e-72.3397e-833.3253
TURF FRHHE4.4564e-67.1653e-74.6347e-71.2422e-78.4299e-81.4352e-52.6856e-61.4488e-72.0242e-833.3253
ENR GUHHZ1.6104e-52.0511e-69.0007e-72.8604e-71.4126e-73.5845e-52.8614e-62.2400e-74.2969e-835.2302
ENR GUHHN4.9240e-55.1390e-61.5969e-64.1557e-72.5589e-78.0901e-55.5275e-64.4909e-71.1217e-735.2302
ENR GUHHE6.2246e-55.2191e-61.0668e-63.0870e-71.9864e-75.2808e-53.2450e-63.7598e-71.0899e-735.2302
BURY GUHHZ6.3172e-61.1172e-67.2309e-72.9934e-71.2071e-71.3264e-54.8773e-61.7179e-72.3552e-836.3211
BURY GUHHN6.8352e-61.6015e-69.0977e-73.1128e-71.4021e-72.7559e-54.2235e-62.1407e-73.5701e-836.3211
BURY GUHHE9.7723e-61.7934e-61.1940e-64.0147e-72.2391e-71.9899e-56.8280e-63.3909e-75.4789e-836.3211
ESCA FRHHZ1.4400e-62.7209e-71.9675e-79.5620e-84.5190e-83.2629e-69.7762e-75.2172e-86.4583e-942.1232
ESCA FRHHN2.5842e-63.4359e-72.0081e-79.5902e-84.3037e-86.0136e-66.8491e-74.6329e-87.3370e-942.1232
ESCA FRHHE1.6737e-63.4032e-72.8934e-71.0716e-74.5184e-85.4647e-61.5273e-66.2424e-88.2975e-942.1232
STV GUHHZ5.7604e-65.4641e-72.6592e-77.9823e-83.9371e-81.1678e-59.9684e-75.7583e-81.3290e-842.4299
STV GUHHN6.3547e-68.2161e-73.2054e-79.4398e-84.7996e-81.3657e-51.0907e-67.7971e-82.0122e-842.4299
STV GUHHE6.3170e-67.1163e-72.9251e-78.7074e-84.8884e-81.5158e-51.5101e-68.6409e-81.7222e-842.4299
QLNO IVHHZ1.3247e-62.4283e-71.6758e-78.3101e-86.9065e-84.4281e-61.2411e-61.0976e-71.2532e-853.357
QLNO IVHHN2.3559e-63.3895e-72.6050e-71.1780e-75.3034e-85.8502e-61.5021e-68.0601e-89.0089e-953.357
QLNO IVHHE2.5527e-63.8330e-72.7231e-78.9342e-84.1978e-86.6892e-61.8834e-65.4082e-88.5495e-953.357
ISO FRHHZ7.2451e-71.0519e-77.4971e-82.1732e-81.2737e-81.7469e-63.5445e-71.8830e-82.5375e-960.6283
ISO FRHHN1.3315e-61.4056e-77.9196e-82.7330e-81.1633e-83.5994e-63.8654e-72.0298e-82.8706e-960.6283
ISO FRHHE8.1536e-71.1186e-76.1869e-81.6957e-88.9255e-92.3757e-62.8270e-71.4049e-82.6470e-960.6283
PZZ GUHHZ2.4138e-64.8667e-73.5562e-71.1340e-75.0921e-85.2319e-61.7954e-68.2083e-81.4259e-873.0313
PZZ GUHHN2.6455e-66.1233e-74.3937e-71.6006e-77.1349e-86.4241e-61.7636e-69.1903e-81.6366e-873.0313
PZZ GUHHE2.0058e-65.1817e-74.0084e-71.5395e-76.8903e-85.6665e-62.1272e-68.9803e-81.3076e-873.0313
PCP GUHHZ7.2941e-71.2613e-71.0918e-75.3197e-82.8101e-81.8351e-67.3643e-73.4433e-84.0731e-980.548
PCP GUHHN1.0351e-61.7478e-71.3699e-77.6559e-84.0000e-82.3986e-61.0705e-64.7366e-85.4994e-980.548
PCP GUHHE1.0639e-61.9604e-71.4541e-76.3419e-83.4315e-83.7861e-68.9608e-74.9908e-85.1515e-980.548
BHB GUHHZ1.1061e-61.4689e-78.7663e-82.9386e-81.7060e-83.3535e-65.5088e-73.0996e-83.0954e-995.6334
BHB GUHHN9.0204e-71.5724e-71.2556e-74.7844e-82.2390e-83.1897e-68.2551e-73.6936e-84.2785e-995.6334
BHB GUHHE1.0722e-61.8944e-71.3221e-74.7986e-83.3067e-83.1639e-67.4097e-74.8190e-88.3921e-995.6334
*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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