MANUAL Location - Area: Alpi Marittime , magnitude (ML): 0.5
2025-09-14 07:22:01 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-09-15 08:14:22

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Earthquake info - Manual location
Event - ID :250914072134
Magnitude (ML) :0.5 +/- 0.2
Origin Time :2025-09-14 07:22:01.153 (UTC)
Location : Latitude: 44.131 N, Longitude: 7.913 E
Area :Alpi Marittime
Depth (km) :5.98
Distances (km) : 2.6 --- Ormea
3.7 --- Caprauna
4.8 --- Armo
7.6 --- Pornassio
7.6 --- Alto
8.8 --- Cosio di Arroscia
8.9 --- Aquila di Arroscia
9.2 --- Pieve di Teco
9.7 --- Borghetto d Arroscia
9.8 --- Nasino
10.1 --- Vessalico
10.4 --- Montegrosso Pian Latte
10.5 --- Mendatica
11.2 --- Ranzo
11.9 --- Garessio
12.4 --- Rezzo
12.9 --- Onzo
13.0 --- Castelbianco
13.9 --- Vendone
14.1 --- Briga Alta

Quality location estimate: Erh: 0.7 km, Erz: 1.1 km, Nf: 34, Gap: 76 °, 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.
PVTIT2025-09-14 07:22:02.8970.0200-0.860.442025-09-14 07:22:05.0190.0400-0.660.6811.9
ROROGU2025-09-14 07:22:04.1400.00700.051.542025-09-14 07:22:06.1600.04510.021.6013.9
MGROGU2025-09-14 07:22:04.3900.0070-0.011.662025-09-14 07:22:06.8400.04510.031.5515.1
GBOSGU2025-09-14 07:22:04.2600.0080-0.051.472025-09-14 07:22:06.2100.0461-0.220.8815.2
MLIGIV2025-09-14 07:22:05.9010.0200-0.441.012025-09-14 07:22:09.6520.0400-0.550.9525.0
IMIGU2025-09-14 07:22:06.1200.0130-0.021.612025-09-14 07:22:09.5100.0782-0.361.0525.5
SAOFFR2025-09-14 07:22:07.7950.02000.140.922025-09-14 07:22:12.0800.1002-0.261.1033.5
QLNOIV2025-09-14 07:22:08.2600.0211-0.820.522025-09-14 07:22:13.0700.1253-1.580.0241.1
ENRGU2025-09-14 07:22:08.8900.02000.121.092025-09-14 07:22:13.5720.1002-0.451.0341.5
TURFFR2025-09-14 07:22:09.9670.02000.031.462025-09-14 07:22:15.6180.1364-0.500.9845.5
BURYGU2025-09-14 07:22:09.6080.0200-0.321.012025-09-14 07:22:16.0320.1002-0.151.1948.5
VINDIV2025-09-14 07:22:11.5850.0200-0.780.602025-09-14 07:22:19.3640.0400-0.640.8362.3
MVIFFR2025-09-14 07:22:13.1670.0200-0.391.062025-09-14 07:22:21.6800.3968-0.630.7666.4
PCPGU2025-09-14 07:22:12.7360.0200-0.041.352025-09-14 07:22:20.8730.0400-0.131.1868.2
ISOFR2025-09-14 07:22:13.7290.02000.190.692025-09-14 07:22:21.5470.2547-0.480.9469.4
BHBGU2025-09-14 07:22:16.5680.0200-0.311.082025-09-14 07:22:27.3520.4629-0.330.8293.9


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
PVT ITHN0.087.97e-211.9176
RORO GUHH0.853.61e-113.9100
MGRO GUHH0.278.25e-215.1220
GBOS GUHH0.751.24e-115.2335
IMI GUHH0.365.24e-225.5184
SAOF FRHH0.412.57e-233.5241
QLNO IVHH0.693.35e-241.158
TURF FRHH0.531.88e-245.5248
BURY GUHH0.652.18e-248.5216
PCP GUHH0.701.32e-268.248
ISO FRHH0.264.15e-369.4275
BHB GUHH0.938.91e-393.9327


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 ITHNZ1.1561e-59.9967e-74.6704e-73.1553e-71.7381e-79.8039e-62.5124e-62.5078e-72.5798e-811.9176
PVT ITHNN1.5084e-51.1195e-66.0206e-73.5152e-71.8562e-71.9237e-53.6044e-62.1335e-72.2273e-811.9176
PVT ITHNE2.3271e-51.8702e-66.3742e-72.6426e-71.5281e-72.0723e-53.1319e-62.2096e-73.6279e-811.9176
RORO GUHHZ2.9654e-54.4807e-61.1751e-63.4183e-72.2176e-78.3607e-54.6362e-63.9374e-78.5094e-813.9100
RORO GUHHN3.9738e-56.4241e-62.7419e-67.8240e-74.9979e-79.0616e-51.0556e-58.1581e-71.4006e-713.9100
RORO GUHHE4.1482e-55.7650e-61.6283e-65.8798e-73.6752e-76.3320e-56.1890e-66.6651e-71.3968e-713.9100
MGRO GUHHZ1.8154e-66.3835e-74.6934e-73.2564e-71.3328e-75.8051e-61.8081e-61.8369e-72.1347e-815.1220
MGRO GUHHN3.6490e-68.9701e-77.1324e-72.9825e-71.2001e-77.9773e-62.8467e-61.8152e-72.1986e-815.1220
MGRO GUHHE6.0337e-61.2913e-66.9272e-72.6599e-71.1159e-71.9855e-52.7082e-61.6232e-73.0169e-815.1220
GBOS GUHHZ2.4832e-52.8648e-68.6743e-72.6820e-71.6459e-74.8764e-53.1237e-62.9008e-75.8572e-815.2335
GBOS GUHHN2.0015e-53.1484e-67.6646e-72.0224e-71.3321e-76.1683e-52.1013e-62.7948e-76.5414e-815.2335
GBOS GUHHE2.0359e-52.6045e-68.1397e-72.8193e-71.7904e-73.6016e-53.0696e-63.1598e-75.8674e-815.2335
IMI GUHHZ2.3699e-63.7310e-72.5827e-71.4668e-76.9759e-82.4303e-61.7124e-61.0144e-71.1381e-825.5184
IMI GUHHN8.2878e-67.9893e-74.4459e-71.6826e-79.2476e-87.1840e-62.0774e-61.5534e-71.9784e-825.5184
IMI GUHHE3.3598e-64.1695e-72.7144e-71.2543e-74.8531e-84.8929e-69.9652e-76.1452e-89.8046e-925.5184
SAOF FRHHZ7.5753e-72.4574e-71.9228e-75.7671e-83.2599e-81.3112e-61.1180e-64.2677e-85.9900e-933.5241
SAOF FRHHN8.4025e-72.0648e-72.0532e-79.0213e-83.4971e-81.6820e-61.6430e-64.6312e-86.3992e-933.5241
SAOF FRHHE1.0281e-62.6356e-71.8665e-79.7587e-83.8545e-82.6760e-69.3980e-74.6108e-87.4640e-933.5241
QLNO IVHHZ1.6915e-62.8294e-71.1801e-74.4160e-82.8196e-84.4105e-67.5325e-74.5062e-85.5253e-941.158
QLNO IVHHN7.3951e-69.6752e-72.6892e-76.9432e-85.2997e-81.5768e-51.0040e-69.8245e-82.0336e-841.158
QLNO IVHHE5.9885e-67.0634e-71.9577e-76.1015e-83.6224e-89.1123e-69.7419e-76.4442e-81.3949e-841.158
ENR GUHHZ8.3827e-69.7681e-73.4333e-78.6495e-85.4762e-82.3210e-51.1857e-68.2589e-81.9607e-841.5286
ENR GUHHN1.7812e-52.4395e-68.2460e-71.7114e-71.1229e-75.7426e-52.3856e-62.1901e-75.1757e-841.5286
ENR GUHHE1.0707e-51.4956e-63.9384e-71.0217e-76.6852e-83.0690e-51.0714e-61.2217e-73.0235e-841.5286
TURF FRHHZ5.3565e-71.0031e-77.3256e-83.7439e-81.9016e-81.4825e-64.1221e-73.2343e-82.8599e-945.5248
TURF FRHHN1.1881e-62.1065e-71.4808e-74.5351e-82.3364e-82.9346e-67.3960e-73.0721e-85.0405e-945.5248
TURF FRHHE1.0418e-62.4191e-71.4601e-74.2169e-82.6567e-81.9707e-66.9240e-74.8474e-86.2263e-945.5248
BURY GUHHZ7.8273e-71.4763e-71.0514e-77.1668e-84.4711e-83.0855e-66.1141e-75.7690e-83.9924e-948.5216
BURY GUHHN1.0872e-62.1542e-71.3484e-77.8361e-84.5560e-83.7047e-66.9251e-75.5919e-86.0988e-948.5216
BURY GUHHE1.0901e-62.5203e-72.1024e-79.7224e-84.8526e-82.9908e-61.2228e-64.7963e-86.5546e-948.5216
PCP GUHHZ1.4099e-61.4378e-77.5371e-83.2258e-82.0425e-81.9725e-63.5251e-72.8907e-83.4242e-968.248
PCP GUHHN1.6831e-61.8511e-71.0494e-74.6354e-82.8246e-83.0963e-65.3945e-74.5670e-85.1046e-968.248
PCP GUHHE2.2861e-62.8941e-71.1925e-73.3474e-82.8709e-84.1840e-67.1644e-74.6254e-86.4012e-968.248
ISO FRHHZ2.5082e-74.0724e-82.4442e-81.4480e-81.5578e-87.0134e-71.0331e-72.5365e-83.8492e-969.4275
ISO FRHHN3.8592e-75.8473e-83.4975e-81.1490e-86.3338e-91.0636e-61.6177e-78.6433e-91.4854e-969.4275
ISO FRHHE3.7345e-76.8970e-82.9622e-81.2856e-81.7264e-81.4720e-61.0457e-73.0537e-83.8519e-969.4275
BHB GUHHZ4.5553e-78.3903e-85.3785e-81.7640e-81.6752e-81.5202e-64.1156e-73.8955e-81.9452e-993.9327
BHB GUHHN5.3127e-71.0935e-77.3517e-82.2874e-81.5388e-81.3170e-63.4007e-73.4066e-82.2989e-993.9327
BHB GUHHE5.5952e-71.3469e-78.5779e-82.9516e-81.9423e-81.2191e-64.3216e-74.3406e-83.1907e-993.9327
*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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