MANUAL Location - Area: Alpi Marittime , magnitude (ML): 1.0
2025-05-06 02:30:27 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-05-06 07:30:33

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Earthquake info - Manual location
Event - ID :250506023001
Magnitude (ML) :1.0 +/- 0.2
Origin Time :2025-05-06 02:30:27.509 (UTC)
Location : Latitude: 44.289 N, Longitude: 7.361 E
Area :Alpi Marittime
Depth (km) :16.60
Distances (km) : 3.1 --- Valdieri
4.3 --- Moiola
5.7 --- Valloriate
5.9 --- Demonte
6.1 --- Entracque
6.4 --- Gaiola
7.6 --- Rittana
7.8 --- Roaschia
8.7 --- Roccasparvera
10.0 --- Roccavione
11.2 --- Borgo San Dalmazzo
11.6 --- Aisone
11.8 --- Vignolo
12.1 --- Robilante
12.4 --- Bernezzo
13.6 --- Cervasca
13.8 --- Monterosso Grana
13.8 --- Valgrana
14.7 --- Vernante
15.0 --- Vinadio

Quality location estimate: Erh: 1.4 km, Erz: 0.8 km, Nf: 48, Gap: 94 °, Rms: 0.33


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.
STVGU2025-05-06 02:30:31.2600.00900.341.132025-05-06 02:30:33.2400.0561-0.011.5718.4
ENRGU2025-05-06 02:30:31.5100.01000.421.232025-05-06 02:30:33.6300.05910.051.4919.5
VINDIV2025-05-06 02:30:32.0840.02000.441.182025-05-06 02:30:34.3970.0400-0.091.4122.3
ISOFR2025-05-06 02:30:34.1300.01700.710.112025-05-06 02:30:37.5100.09920.071.4032.5
PZZGU2025-05-06 02:30:34.1700.0221-0.001.592025-05-06 02:30:38.5040.1594-0.410.8735.9
TURFFR2025-05-06 02:30:35.3300.02010.540.642025-05-06 02:30:39.5000.1223-0.470.7938.7
SAOFFR2025-05-06 02:30:35.5710.02000.471.032025-05-06 02:30:39.8600.1825-0.590.6840.7
GBOSGU2025-05-06 02:30:35.4510.02000.411.182025-05-06 02:30:40.5000.18350.331.1042.3
MLIGIV2025-05-06 02:30:35.9490.0200-0.081.442025-05-06 02:30:40.9360.0400-1.150.2045.3
MGROGU2025-05-06 02:30:36.4600.26090.021.262025-05-06 02:30:42.1000.1484-0.680.5748.6
MVIFFR2025-05-06 02:30:37.0820.02000.301.122025-05-06 02:30:42.7800.1544-0.720.5449.5
SURFFR2025-05-06 02:30:36.9400.02510.081.412025-05-06 02:30:43.3460.1955-0.181.1651.2
ESCAFR2025-05-06 02:30:37.7100.06630.441.042025-05-06 02:30:43.9140.1705-0.241.1053.7
BRDIT2025-05-06 02:30:37.3930.02000.011.522025-05-06 02:30:43.7920.0400-0.520.7355.0
PVTIT2025-05-06 02:30:37.0640.0200-0.260.952025-05-06 02:30:44.3850.04000.071.3755.3
BIGNGU2025-05-06 02:30:37.9700.02000.071.432025-05-06 02:30:44.8940.1915-0.291.0358.2
BURYGU2025-05-06 02:30:38.3740.0200-0.171.202025-05-06 02:30:45.3990.0400-0.870.3760.7
ROROGU2025-05-06 02:30:38.5250.02000.131.302025-05-06 02:30:45.8460.1002-0.131.2561.9
IMIGU2025-05-06 02:30:38.7300.03210.321.142025-05-06 02:30:46.0100.1905-0.181.1562.3
BHBGU2025-05-06 02:30:37.5480.0200-0.610.622025-05-06 02:30:44.2900.2386-1.390.1663.6
CANOGU2025-05-06 02:30:40.3940.0200-0.011.452025-05-06 02:30:48.9100.2577-0.530.7872.5
QLNOIV2025-05-06 02:30:41.8910.02000.450.982025-05-06 02:30:50.0250.0400-1.340.1780.3
RRLGU2025-05-06 02:30:41.8960.0200-0.480.762025-05-06 02:30:51.6270.0400-1.290.1985.6


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
STV GUHH1.193.22e-118.4210
ISO FRHH0.796.53e-232.5245
PZZ GUHH0.687.10e-235.9321
TURF FRHH1.251.34e-138.7176
SAOF FRHH0.643.00e-240.7155
GBOS GUHH0.912.65e-242.398
MGRO GUHH0.843.36e-248.6127
ESCA FRHH1.115.10e-253.7179
BRD ITHN1.431.00e-155.0146
PVT ITHN1.338.03e-255.3121
BIGN GUEH1.195.15e-258.2147
BURY GUHH0.932.60e-260.7164
RORO GUHH0.821.93e-261.9109
IMI GUHH1.165.61e-262.3135
BHB GUHH0.891.94e-263.6353
CANO GUHH1.304.14e-272.597
QLNO IVHH1.112.14e-280.387
RRL GUHH0.735.19e-385.6327


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.
(°)
STV GUHHZ8.9429e-56.3962e-69.4933e-72.6005e-71.2733e-73.7196e-53.8400e-62.7040e-76.7838e-818.4210
STV GUHHN4.5485e-57.5639e-62.1949e-68.0751e-74.9609e-71.1496e-48.0614e-68.9546e-71.7636e-718.4210
STV GUHHE4.0799e-55.7796e-61.9528e-67.5101e-74.8774e-77.7750e-59.4135e-68.0452e-71.3832e-718.4210
ENR GUHHZ2.0150e-41.2667e-52.2583e-67.2927e-74.4044e-71.6340e-48.5103e-69.3842e-72.4364e-719.5145
ENR GUHHN4.1607e-43.7774e-58.9358e-62.9305e-61.7634e-63.7299e-43.2995e-53.2411e-67.1342e-719.5145
ENR GUHHE5.7895e-44.7497e-55.6412e-61.9266e-61.1395e-63.4900e-42.5274e-52.9418e-69.0588e-719.5145
ISO FRHHZ8.0420e-68.4687e-73.4570e-71.1387e-75.9422e-87.1589e-61.6899e-69.2989e-81.6684e-832.5245
ISO FRHHN2.0292e-52.0404e-64.9088e-71.4914e-79.7836e-81.9308e-51.8142e-61.9057e-73.9680e-832.5245
ISO FRHHE1.6499e-51.5933e-64.3346e-71.2147e-76.5952e-81.3682e-51.7071e-61.1099e-72.7325e-832.5245
PZZ GUHHZ6.8050e-61.2771e-67.1039e-71.7497e-71.0632e-72.4396e-52.0909e-61.5914e-72.9064e-835.9321
PZZ GUHHN9.7639e-61.4600e-66.7014e-72.1300e-71.1283e-72.6413e-52.7605e-61.7529e-73.6776e-835.9321
PZZ GUHHE6.3652e-61.1193e-66.4456e-72.0276e-78.7359e-81.7632e-52.1450e-61.3937e-72.8426e-835.9321
TURF FRHHZ6.1209e-61.1448e-67.9859e-72.3733e-71.1314e-71.1952e-53.7331e-61.7029e-72.9563e-838.7176
TURF FRHHN1.3140e-52.4801e-61.1362e-63.3599e-71.9469e-72.1700e-55.6110e-63.0102e-74.6863e-838.7176
TURF FRHHE7.7516e-61.0447e-65.4513e-71.6239e-77.8148e-81.2908e-53.8294e-61.2646e-71.9042e-838.7176
SAOF FRHHZ3.0052e-65.0613e-72.6309e-79.3510e-84.7128e-84.9498e-61.6675e-66.8562e-81.1546e-840.7155
SAOF FRHHN4.3515e-65.4311e-72.9276e-71.2014e-76.0742e-86.9426e-61.5079e-67.1271e-81.2281e-840.7155
SAOF FRHHE4.7071e-64.5576e-72.3649e-79.2616e-84.4541e-84.5713e-61.2583e-66.7893e-89.3787e-940.7155
GBOS GUHHZ4.1868e-66.7466e-72.9188e-79.6493e-84.6980e-81.2232e-51.4700e-68.1929e-81.5356e-842.398
GBOS GUHHN3.6136e-63.5628e-72.0306e-78.5888e-83.7200e-84.3758e-68.1313e-76.3190e-88.6533e-942.398
GBOS GUHHE3.2530e-64.2722e-72.5463e-78.4596e-84.1106e-81.0580e-51.1266e-66.1350e-81.0353e-842.398
MGRO GUHHZ2.2042e-63.8467e-71.8834e-79.1962e-84.2601e-84.1612e-66.3339e-76.1545e-89.3004e-948.6127
MGRO GUHHN4.4369e-67.3956e-72.7865e-79.8476e-84.7976e-88.0497e-61.2117e-66.6572e-81.5407e-848.6127
MGRO GUHHE4.0514e-65.3061e-72.6728e-77.7823e-83.7204e-88.6725e-61.0093e-66.2130e-81.1234e-848.6127
ESCA FRHHZ4.3464e-65.7541e-72.1317e-79.2050e-84.4769e-86.3785e-68.1533e-76.8357e-81.2322e-853.7179
ESCA FRHHN5.1258e-66.8530e-73.4021e-71.1690e-74.4090e-81.0804e-51.1913e-65.9861e-81.3905e-853.7179
ESCA FRHHE5.1814e-68.8003e-74.7716e-71.2832e-76.8906e-89.6744e-63.1692e-61.0439e-72.1458e-853.7179
BRD ITHNZ4.4180e-65.1686e-74.1879e-72.2943e-71.3140e-75.0261e-62.6565e-61.7783e-71.3747e-855.0146
BRD ITHNN3.3934e-68.9278e-76.1141e-75.4132e-74.8281e-78.4484e-64.4063e-67.9987e-76.1147e-855.0146
BRD ITHNE2.9784e-65.4018e-74.3164e-73.0111e-71.4621e-78.4699e-62.3043e-61.5864e-71.5541e-855.0146
PVT ITHNZ5.3090e-65.9524e-73.9854e-73.4558e-71.7133e-77.2617e-62.4164e-62.2292e-71.8069e-855.3121
PVT ITHNN8.1967e-61.1578e-64.6887e-74.9605e-74.6545e-71.7764e-52.0344e-67.4380e-75.6829e-855.3121
PVT ITHNE9.0992e-68.5644e-74.1029e-72.9716e-71.6453e-71.4329e-52.2325e-62.3198e-72.2535e-855.3121
BIGN GUEHZ2.5775e-63.1281e-71.2567e-74.2075e-83.8950e-83.3384e-64.1232e-77.1194e-86.8590e-958.2147
BIGN GUEHN1.1093e-51.0845e-63.8720e-71.7935e-71.7551e-71.1493e-51.2639e-63.1131e-74.5377e-858.2147
BIGN GUEHE1.1664e-51.0671e-63.4341e-71.0114e-75.8839e-81.1281e-51.1668e-61.0036e-72.1559e-858.2147
BURY GUHHZ2.4714e-62.8943e-71.4572e-71.1684e-76.4921e-83.7421e-69.4101e-77.8434e-87.4802e-960.7164
BURY GUHHN2.3634e-63.2683e-71.5863e-71.0134e-76.6841e-86.9811e-65.4951e-78.8976e-81.1437e-860.7164
BURY GUHHE3.5323e-64.5656e-71.6538e-78.6328e-85.6564e-88.7276e-69.4786e-71.0185e-71.2222e-860.7164
RORO GUHHZ1.9295e-62.2757e-71.2508e-73.3391e-82.7183e-83.6481e-65.6128e-75.1180e-85.7509e-961.9109
RORO GUHHN1.9114e-63.2066e-71.8698e-74.2321e-82.8331e-84.3979e-61.0259e-64.6331e-87.8205e-961.9109
RORO GUHHE2.0904e-62.3492e-71.3472e-73.4331e-82.1116e-83.0372e-66.3989e-72.9861e-86.5673e-961.9109
IMI GUHHZ2.9122e-65.4407e-72.1665e-71.1693e-71.5642e-78.8025e-68.3447e-73.2865e-73.2361e-862.3135
IMI GUHHN1.2219e-51.6042e-64.7884e-71.3541e-76.9959e-81.7125e-52.3163e-61.1440e-73.4670e-862.3135
IMI GUHHE6.3955e-69.2235e-73.4128e-71.0078e-75.7752e-81.0605e-51.6475e-68.7468e-81.8093e-862.3135
BHB GUHHZ2.5415e-63.3279e-71.2239e-73.5804e-82.0112e-86.2116e-65.4072e-73.9420e-86.7938e-963.6353
BHB GUHHN2.5862e-63.6250e-71.3094e-73.3460e-82.0009e-85.0473e-66.5826e-72.9678e-87.2241e-963.6353
BHB GUHHE5.2380e-66.1784e-71.2908e-74.7304e-82.5249e-87.6395e-65.1190e-75.0447e-81.1565e-863.6353
CANO GUHHZ1.8943e-62.7726e-71.4980e-75.3114e-86.0850e-83.5695e-68.1009e-71.1815e-79.4924e-972.597
CANO GUHHN1.9540e-64.0658e-73.5911e-71.2097e-75.8259e-83.6209e-62.7452e-67.9595e-81.2105e-872.597
CANO GUHHE1.4148e-63.3682e-72.0284e-79.8523e-88.7569e-84.5486e-68.7147e-71.6568e-71.0495e-872.597
QLNO IVHHZ1.4475e-62.0461e-71.1979e-74.9856e-83.1092e-83.4236e-67.6357e-75.4860e-84.9986e-980.387
QLNO IVHHN1.9533e-62.0220e-71.1254e-75.1273e-82.8106e-85.6945e-64.6966e-74.6947e-86.6792e-980.387
QLNO IVHHE2.1498e-63.0307e-71.7231e-77.2081e-83.4717e-83.4676e-61.0905e-64.8613e-87.4733e-980.387
RRL GUHHZ4.1146e-74.7281e-82.9247e-81.2349e-89.2685e-91.1836e-61.4188e-71.3807e-81.3880e-985.6327
RRL GUHHN5.0412e-77.2180e-85.2098e-82.1346e-81.3444e-81.4362e-62.0534e-71.8790e-82.2274e-985.6327
RRL GUHHE5.2327e-77.1128e-84.9467e-82.1291e-81.2678e-81.0550e-62.4265e-71.5692e-81.8906e-985.6327
*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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