MANUAL Location - Area: Riviera di ponente , magnitude (ML): 0.6
2025-07-01 22:57:04 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-07-02 07:29:38

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Earthquake info - Manual location
Event - ID :250701225640
Magnitude (ML) :0.6 +/- 0.2
Origin Time :2025-07-01 22:57:04.996 (UTC)
Location : Latitude: 44.030 N, Longitude: 7.941 E
Area :Riviera di ponente
Depth (km) :5.91
Distances (km) : 2.6 --- Vessalico
3.0 --- Pieve di Teco
3.5 --- Cesio
4.2 --- Caravonica
4.6 --- Borghetto d Arroscia
5.4 --- Aurigo
5.5 --- Rezzo
5.9 --- Borgomaro
6.7 --- Ranzo
6.9 --- Lucinasco
6.9 --- Armo
7.4 --- Pornassio
7.5 --- Chiusanico
7.6 --- Chiusavecchia
7.6 --- Testico
8.0 --- Aquila di Arroscia
8.6 --- Casanova Lerrone
9.5 --- Stellanello
9.7 --- Carpasio
9.8 --- Caprauna

Quality location estimate: Erh: 0.8 km, Erz: 0.4 km, Nf: 27, Gap: 90 °, 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.
PVTIT2025-07-01 22:57:06.8420.04010.200.722025-07-01 22:57:07.7550.1002-0.151.396.5
MGROGU2025-07-01 22:57:07.9500.00600.001.582025-07-01 22:57:09.8990.0300-0.340.9913.1
ROROGU2025-07-01 22:57:08.0800.00700.021.512025-07-01 22:57:10.1400.1153-0.121.4314.9
DNSPIT2025-07-01 22:57:08.1820.0401-0.051.552025-07-01 22:57:10.2940.0701-0.331.0116.4
MLIGIV2025-07-01 22:57:09.4320.0602-0.171.292025-07-01 22:57:12.2920.1002-0.800.0921.9
BIGNGU2025-07-01 22:57:09.8540.06020.071.30--:---.-----.---.-- 24.7
GBOSGU2025-07-01 22:57:10.2400.01300.210.662025-07-01 22:57:13.4200.0732-0.091.4725.8
SAOFFR2025-07-01 22:57:11.6000.01600.400.472025-07-01 22:57:15.4300.0872-0.301.1031.9
BURYGU2025-07-01 22:57:12.5400.02110.021.492025-07-01 22:57:17.8900.1203-0.051.3741.7
TURFFR2025-07-01 22:57:13.9600.02210.410.512025-07-01 22:57:19.4450.3678-0.190.9544.7
QLNOIV2025-07-01 22:57:13.4700.0231-0.291.142025-07-01 22:57:19.4000.3087-0.590.5446.4
ESCAFR2025-07-01 22:57:15.0400.02510.510.382025-07-01 22:57:21.3860.2005-0.041.2150.8
PCPGU2025-07-01 22:57:18.4000.03710.730.122025-07-01 22:57:27.1000.22960.370.7374.8
PZZGU2025-07-01 22:57:19.6410.0803-0.350.942025-07-01 22:57:30.3900.2466-0.101.0584.7


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
PVT ITHN0.781.15e+06.5310
MGRO GUHH0.582.15e-113.1278
RORO GUHH0.641.94e-114.947
DNSP ITHN0.953.34e-116.4137
GBOS GUHH0.734.50e-225.8341
SAOF FRHH0.282.12e-231.9261
BURY GUHH0.602.65e-241.7228
TURF FRHH0.361.32e-244.7262
QLNO IVHH0.753.00e-246.444
ESCA FRHH0.521.46e-250.8244
PCP GUHH0.771.25e-274.840
PZZ GUHH0.641.08e-284.7309


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.
(°)
PVT ITHNZ3.2109e-42.1734e-52.6821e-68.5551e-75.4109e-71.5517e-41.0068e-51.3719e-64.2597e-76.5310
PVT ITHNN6.9993e-44.8384e-57.0168e-62.2004e-61.2009e-63.8302e-43.0069e-53.3616e-69.9985e-76.5310
PVT ITHNE5.3895e-44.8717e-55.7455e-61.9450e-61.3002e-63.3516e-42.2632e-53.1343e-69.5500e-76.5310
MGRO GUHHZ1.3563e-51.9173e-67.6087e-71.8806e-71.0645e-73.0340e-52.8863e-61.8877e-74.4020e-813.1278
MGRO GUHHN3.5381e-56.1193e-61.7855e-65.2411e-72.8575e-75.3313e-58.4413e-65.1435e-71.2897e-713.1278
MGRO GUHHE2.0011e-52.7892e-61.2447e-63.6297e-71.8386e-75.1102e-55.2538e-63.1280e-76.2246e-813.1278
RORO GUHHZ4.2901e-55.0121e-61.2795e-63.8497e-72.5558e-74.2591e-55.4874e-64.5516e-79.4305e-814.947
RORO GUHHN3.8698e-53.9949e-68.6319e-72.5505e-71.6172e-73.2793e-52.4274e-63.2392e-77.4195e-814.947
RORO GUHHE3.2018e-53.9189e-61.5647e-64.7725e-73.0507e-74.4777e-55.4787e-65.1931e-79.9931e-814.947
DNSP ITHNZ3.1089e-54.3686e-61.3078e-63.8747e-72.3683e-75.8941e-55.1382e-63.4405e-79.7261e-816.4137
DNSP ITHNN4.8515e-54.8130e-61.4486e-64.5231e-72.4788e-76.9119e-55.1695e-64.1128e-71.0590e-716.4137
DNSP ITHNE5.9842e-58.7337e-62.2690e-68.0615e-75.3366e-78.7939e-58.5062e-68.4069e-71.6794e-716.4137
GBOS GUHHZ4.4387e-66.3971e-72.1435e-76.1505e-83.8312e-81.1392e-57.6609e-77.0932e-81.5208e-825.8341
GBOS GUHHN3.1848e-65.1488e-72.0143e-76.4571e-83.6586e-89.8835e-69.1881e-75.6300e-81.0470e-825.8341
GBOS GUHHE6.6636e-61.0062e-64.4658e-71.1345e-76.1451e-81.5959e-51.5003e-69.1552e-82.1953e-825.8341
SAOF FRHHZ1.3178e-61.9091e-71.2331e-73.6027e-81.5218e-82.0355e-63.9412e-72.2570e-84.2067e-931.9261
SAOF FRHHN2.0195e-62.3438e-71.0656e-74.6778e-82.0740e-83.4989e-65.4401e-72.9733e-84.6980e-931.9261
SAOF FRHHE3.0046e-63.6037e-71.6648e-74.5705e-82.8600e-83.6279e-66.6387e-74.8931e-88.0262e-931.9261
BURY GUHHZ3.4172e-63.0330e-71.3351e-75.0694e-82.7188e-84.2225e-66.4852e-73.2309e-86.8980e-941.7228
BURY GUHHN3.8858e-63.8520e-71.7452e-75.4001e-82.5562e-87.7948e-65.4876e-73.8315e-88.4484e-941.7228
BURY GUHHE3.8948e-64.8949e-71.7949e-76.1712e-83.6978e-88.0827e-65.1982e-76.3530e-81.0996e-841.7228
TURF FRHHZ1.4345e-61.5067e-76.6838e-82.0041e-89.9448e-92.2657e-62.5070e-71.7560e-83.1651e-944.7262
TURF FRHHN2.4170e-63.0248e-71.1514e-73.7426e-81.8954e-83.3284e-64.5456e-73.1295e-86.8163e-944.7262
TURF FRHHE2.2030e-62.8405e-71.0929e-73.1304e-81.4052e-83.5163e-64.5332e-72.5469e-86.8700e-944.7262
QLNO IVHHZ2.9356e-62.2367e-71.5377e-75.2541e-82.4572e-82.9610e-69.4674e-73.5144e-85.2638e-946.444
QLNO IVHHN3.5917e-64.1210e-72.5190e-77.8578e-84.1976e-84.7823e-61.8961e-66.6850e-81.1022e-846.444
QLNO IVHHE4.0461e-64.5754e-71.6986e-76.1283e-82.6656e-85.3139e-61.2758e-64.2292e-88.5896e-946.444
ESCA FRHHZ9.3123e-71.8982e-71.1156e-75.0173e-82.0616e-82.3439e-66.8141e-73.1056e-84.8851e-950.8244
ESCA FRHHN1.5148e-62.2156e-71.4299e-74.0019e-82.1541e-85.0236e-65.2073e-73.6778e-85.9293e-950.8244
ESCA FRHHE1.1546e-61.4702e-79.5494e-82.8299e-81.2507e-82.4742e-64.2909e-71.7014e-83.4393e-950.8244
PCP GUHHZ8.8745e-71.2289e-78.5846e-83.6948e-81.5025e-81.4577e-64.9890e-72.1692e-82.5959e-974.840
PCP GUHHN9.1417e-71.4589e-71.0252e-74.2458e-82.2134e-82.8234e-66.7820e-72.9793e-84.1451e-974.840
PCP GUHHE1.2628e-61.5664e-71.0779e-73.7494e-81.9702e-82.7490e-65.9063e-73.1308e-83.7202e-974.840
PZZ GUHHZ1.0366e-61.6231e-71.0104e-72.7614e-81.7058e-81.7256e-65.6309e-72.9805e-83.4285e-984.7309
PZZ GUHHN9.8189e-71.7259e-71.1066e-74.2544e-82.0873e-83.4095e-64.4667e-73.4273e-84.0662e-984.7309
PZZ GUHHE8.6840e-71.4001e-71.0615e-73.0898e-81.2966e-82.5039e-65.5009e-72.3363e-83.2374e-984.7309
*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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