MANUAL Location - Area: Mar Ligure , magnitude (ML): 1.9
2025-11-17 08:33:20 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-11-17 09:54:55

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Earthquake info - Manual location
Event - ID :251117083301
Magnitude (ML) :1.9 +/- 0.2
Origin Time :2025-11-17 08:33:20.582 (UTC)
Location : Latitude: 43.951 N, Longitude: 8.473 E
Area :Mar Ligure
Depth (km) :6.08
Distances (km) : 23.5 --- Albenga
24.9 --- Alassio
25.1 --- Ceriale
25.5 --- Laigueglia
25.7 --- Borghetto Santo Spirito
26.1 --- Loano
26.4 --- Andora
26.4 --- Finale Ligure
26.9 --- Pietra Ligure
27.0 --- Borgio Verezzi
28.4 --- Villanova d Albenga
28.7 --- Toirano
28.7 --- Boissano
28.8 --- Noli
28.8 --- Cervo
29.8 --- San Bartolomeo al Mare
30.0 --- Tovo San Giacomo
30.2 --- Cisano sul Neva
30.7 --- Villa Faraldi
30.7 --- Giustenice

Quality location estimate: Erh: 1.1 km, Erz: 1.4 km, Nf: 44, Gap: 192 °, Rms: 0.27


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.
DNSPIT2025-11-17 08:33:27.1020.02000.450.722025-11-17 08:33:31.7450.04000.710.2632.9
ROROGU2025-11-17 08:33:27.4700.01900.071.592025-11-17 08:33:33.5840.04001.300.0237.7
SVAIT2025-11-17 08:33:27.8560.0200-0.400.832025-11-17 08:33:33.5820.0400-0.261.0940.1
QLNOIV2025-11-17 08:33:28.8500.0221-0.011.632025-11-17 08:33:34.7530.1303-0.081.3843.2
PVTIT2025-11-17 08:33:28.4650.0200-0.360.872025-11-17 08:33:35.1590.04000.241.2145.6
IMIGU2025-11-17 08:33:28.6200.0241-0.440.742025-11-17 08:33:35.2000.1424-0.061.3847.1
MGROGU2025-11-17 08:33:29.8800.0281-0.680.322025-11-17 08:33:37.7350.2396-0.241.1054.7
BIGNGU2025-11-17 08:33:31.0600.0301-0.101.442025-11-17 08:33:38.6500.1815-0.161.2360.0
GBOSGU2025-11-17 08:33:31.1000.03610.061.572025-11-17 08:33:38.7800.31070.370.9360.4
BRDIT2025-11-17 08:33:31.1580.0200-0.031.572025-11-17 08:33:38.7760.0400-0.131.3360.5
MLIGIV2025-11-17 08:33:31.4030.0200-0.620.422025-11-17 08:33:39.4680.0400-0.990.1063.6
PCPGU2025-11-17 08:33:32.2000.03410.121.462025-11-17 08:33:40.7530.26470.360.9666.2
RNCAGU2025-11-17 08:33:32.7140.02000.410.842025-11-17 08:33:42.8820.04002.120.0269.5
SAOFFR2025-11-17 08:33:33.8500.03710.241.202025-11-17 08:33:43.3530.53890.270.8473.9
BURYGU2025-11-17 08:33:33.9450.02000.231.242025-11-17 08:33:42.7000.2296-0.430.8376.0
ENRGU2025-11-17 08:33:35.9560.0200-0.151.312025-11-17 08:33:47.3900.27370.320.9790.0
MSSAIV2025-11-17 08:33:36.3330.02000.071.482025-11-17 08:33:47.3620.0400-0.181.1992.9
MVIFFR2025-11-17 08:33:39.5970.02000.390.932025-11-17 08:33:52.6000.0400-0.091.20106.1
VINDIV2025-11-17 08:33:39.9030.02000.211.262025-11-17 08:33:53.4500.04000.400.90111.1
ISOFR2025-11-17 08:33:41.1100.05920.420.882025-11-17 08:33:54.9940.49990.190.85116.8
PZZGU2025-11-17 08:33:41.8000.0633-0.011.382025-11-17 08:33:56.6970.0400-0.330.95124.7


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
DNSP ITHN1.786.29e-132.9266
RORO GUHH1.865.84e-137.7299
SVA ITHG1.653.16e-140.1358
IMI GUHH2.088.34e-147.1265
MGRO GUHH1.792.35e-154.7281
BIGN GUEH2.124.17e-160.0262
GBOS GUHH1.921.32e-160.4303
PCP GUHH1.488.44e-266.25
SAOF FRHH1.701.01e-173.9273
BURY GUHH1.831.27e-176.0256
ENR GUHH2.212.84e-190.0291
ISO FRHH1.632.89e-2116.8283
PZZ GUHH1.969.07e-2124.7300


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.
(°)
DNSP ITHNZ5.8345e-56.3833e-62.6427e-66.9588e-74.0685e-71.5742e-41.1056e-57.3815e-71.5844e-732.9266
DNSP ITHNN9.1800e-51.4385e-54.7041e-61.1926e-66.3654e-73.3978e-41.4432e-51.3606e-63.2748e-732.9266
DNSP ITHNE9.3112e-51.4169e-55.4924e-61.3290e-67.4666e-73.4814e-41.9075e-51.2991e-63.2265e-732.9266
RORO GUHHZ3.6247e-55.9200e-62.9242e-68.2933e-73.7381e-71.2093e-41.2085e-56.2649e-71.3549e-737.7299
RORO GUHHN5.2055e-51.0944e-54.0326e-61.0611e-66.3030e-71.1775e-41.5199e-59.8585e-72.2466e-737.7299
RORO GUHHE5.9646e-51.1157e-54.6921e-61.1621e-66.7486e-71.4479e-41.9718e-51.0412e-62.4128e-737.7299
SVA ITHGZ1.3728e-51.8078e-69.6043e-74.5439e-72.1144e-72.9374e-55.0472e-63.6676e-74.9859e-840.1358
SVA ITHGN3.0782e-55.1996e-63.0274e-68.8469e-74.5906e-79.4426e-51.7076e-57.4979e-71.2681e-740.1358
SVA ITHGE4.0122e-55.6123e-62.3864e-66.3737e-73.6167e-79.6488e-51.3173e-56.0187e-71.1401e-740.1358
QLNO IVHHZ1.2360e-51.3167e-68.0559e-72.4909e-71.3303e-73.0955e-55.0504e-62.1015e-73.1389e-843.2346
QLNO IVHHN2.7130e-52.4430e-61.2462e-64.5462e-72.2113e-74.8582e-54.7540e-63.5670e-76.0442e-843.2346
QLNO IVHHE2.3404e-53.4057e-61.1610e-63.8500e-71.6981e-74.0150e-55.3914e-63.0964e-77.4042e-843.2346
PVT ITHNZ2.6966e-53.4010e-61.4595e-65.8976e-73.3368e-77.2295e-55.9905e-65.7848e-79.7098e-845.6283
PVT ITHNN5.9202e-55.2100e-61.8131e-64.5942e-72.7047e-71.0904e-45.7252e-65.0448e-71.0719e-745.6283
PVT ITHNE5.6643e-56.1046e-61.4609e-64.6979e-72.6767e-79.9529e-56.3784e-65.2379e-71.4079e-745.6283
IMI GUHHZ1.6394e-54.3910e-63.5464e-61.2454e-65.9901e-73.7319e-52.7846e-58.7264e-71.1314e-747.1265
IMI GUHHN6.4754e-51.1043e-57.0732e-61.9631e-61.0376e-61.0678e-45.8009e-51.5477e-62.3577e-747.1265
IMI GUHHE3.2766e-56.9037e-64.4277e-61.3239e-66.0502e-77.9708e-52.3453e-59.4641e-71.7754e-747.1265
MGRO GUHHZ9.8120e-61.9370e-61.3366e-64.1445e-71.9692e-72.1129e-57.9589e-63.1973e-75.4545e-854.7281
MGRO GUHHN2.2149e-53.2930e-62.0542e-66.0773e-72.8137e-73.1158e-51.1951e-54.7896e-78.0233e-854.7281
MGRO GUHHE2.4093e-53.6251e-62.2221e-69.3288e-73.7035e-73.9215e-59.9400e-65.3523e-78.8977e-854.7281
BIGN GUEHZ1.7581e-52.4115e-61.4986e-66.8549e-72.6721e-74.4120e-58.5679e-64.0583e-75.9421e-860.0262
BIGN GUEHN2.6279e-56.1579e-63.9585e-61.5820e-66.6421e-76.2786e-53.1294e-51.0353e-61.3716e-760.0262
BIGN GUEHE5.1539e-56.1461e-61.6822e-64.7979e-72.5592e-79.5327e-57.5290e-65.2064e-71.2677e-760.0262
GBOS GUHHZ1.1325e-52.0987e-61.0503e-64.2275e-71.8758e-73.8040e-55.7811e-62.7981e-75.4633e-860.4303
GBOS GUHHN1.0760e-52.0022e-61.1828e-64.7779e-72.2648e-73.3389e-55.8056e-63.0122e-74.8736e-860.4303
GBOS GUHHE1.3731e-51.8782e-69.2998e-73.2031e-71.3799e-72.7658e-54.8901e-61.9834e-74.2686e-860.4303
BRD ITHNZ1.1594e-53.4853e-63.2279e-61.6324e-66.4743e-75.0075e-52.6382e-58.0461e-79.9006e-860.5265
BRD ITHNN2.3290e-56.9964e-65.2515e-62.5887e-61.1196e-64.2422e-54.2245e-51.4104e-61.7795e-760.5265
BRD ITHNE3.0121e-51.1302e-59.2652e-64.1871e-61.8841e-65.7760e-57.5552e-52.4612e-63.3084e-760.5265
PCP GUHHZ9.5787e-61.4156e-61.2730e-64.6468e-72.1269e-71.3557e-57.5119e-63.0144e-74.2154e-866.25
PCP GUHHN6.2123e-69.5665e-75.7216e-73.0407e-71.1981e-71.6416e-52.8751e-61.5280e-72.7890e-866.25
PCP GUHHE9.0975e-61.3767e-68.4498e-72.3831e-71.2231e-71.9824e-54.4383e-61.8491e-73.0421e-866.25
RNCA GUHHZ2.9699e-65.3548e-73.2354e-71.1305e-75.6064e-89.6862e-61.3241e-67.7514e-81.2257e-869.533
RNCA GUHHN2.2136e-63.0529e-73.2812e-72.0620e-78.1410e-83.7222e-61.6287e-61.0814e-78.8260e-969.533
RNCA GUHHE2.6601e-64.1775e-73.9523e-72.1093e-78.6283e-81.2083e-51.9779e-61.2502e-71.3718e-869.533
SAOF FRHHZ4.0153e-66.0410e-75.9426e-73.1894e-71.2929e-71.0949e-53.1384e-61.4896e-71.7606e-873.9273
SAOF FRHHN5.7800e-61.0888e-68.6340e-73.7898e-71.6514e-71.2551e-55.6043e-61.9150e-72.4100e-873.9273
SAOF FRHHE6.7742e-61.1313e-69.3823e-74.0648e-71.7658e-71.6214e-54.0937e-62.4884e-73.1793e-873.9273
BURY GUHHZ9.2423e-61.2586e-65.7100e-72.1067e-71.1591e-72.0373e-52.8753e-61.7762e-72.6086e-876.0256
BURY GUHHN1.3205e-52.1989e-69.9728e-74.4715e-71.9964e-74.0887e-55.2368e-62.8700e-74.7315e-876.0256
BURY GUHHE1.3595e-51.8355e-68.1853e-73.5725e-71.6656e-73.7692e-53.8659e-62.0947e-74.0477e-876.0256
ENR GUHHZ1.3279e-52.4495e-61.6652e-65.1621e-72.4579e-74.2411e-51.1022e-53.4777e-76.0690e-890.0291
ENR GUHHN3.7509e-54.4215e-62.4275e-67.6525e-74.2126e-78.8637e-51.1717e-56.6936e-71.0724e-790.0291
ENR GUHHE3.9970e-54.8512e-61.6494e-66.0906e-73.9207e-78.9542e-55.1259e-66.3299e-71.0710e-790.0291
MSSA IVHHZ5.7130e-71.2187e-71.1372e-76.4569e-83.9020e-81.6022e-65.3467e-76.3148e-84.6081e-992.964
MSSA IVHHN5.8997e-71.4815e-71.1581e-75.6474e-83.6230e-82.4861e-64.1377e-75.3399e-84.6792e-992.964
MSSA IVHHE6.2553e-71.5279e-71.1686e-75.3840e-83.8371e-82.0386e-64.7657e-74.8868e-84.8498e-992.964
ISO FRHHZ1.2510e-62.2205e-71.9037e-78.1097e-84.0224e-84.0100e-61.0373e-64.8521e-85.5392e-9116.8283
ISO FRHHN1.4715e-63.5064e-72.5200e-71.1652e-75.0303e-84.6330e-61.6810e-67.0789e-88.7288e-9116.8283
ISO FRHHE1.2550e-62.1859e-71.4959e-76.4619e-83.1372e-83.4414e-67.9346e-73.8809e-85.5967e-9116.8283
PZZ GUHHZ4.1381e-61.0045e-67.2377e-73.1131e-71.5430e-78.2488e-64.0006e-61.8489e-72.6344e-8124.7300
PZZ GUHHN3.1198e-69.0377e-77.0074e-73.3576e-71.3536e-78.5828e-65.3976e-61.9496e-72.2098e-8124.7300
PZZ GUHHE2.9753e-68.1209e-77.1454e-73.8026e-71.2995e-77.0623e-63.7553e-61.6924e-72.5284e-8124.7300
*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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