MANUAL Location - Area: Riviera di ponente , magnitude (ML): 0.3
2025-11-05 11:05:42 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-11-05 16:50:50

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Earthquake info - Manual location
Event - ID :251105110506
Magnitude (ML) :0.3 +/- 0.1
Origin Time :2025-11-05 11:05:42.627 (UTC)
Location : Latitude: 44.117 N, Longitude: 8.176 E
Area :Riviera di ponente
Depth (km) :6.20
Distances (km) : 1.0 --- Balestrino
2.9 --- Toirano
4.0 --- Cisano sul Neva
4.1 --- Boissano
4.9 --- Zuccarello
5.0 --- Ceriale
5.0 --- Castelvecchio di Rocca Barbena
5.2 --- Borghetto Santo Spirito
6.1 --- Erli
6.8 --- Loano
7.1 --- Arnasco
8.0 --- Albenga
8.2 --- Castelbianco
8.2 --- Villanova d Albenga
8.3 --- Giustenice
8.9 --- Bardineto
9.3 --- Pietra Ligure
9.4 --- Ortovero
9.5 --- Vendone
9.9 --- Tovo San Giacomo

Quality location estimate: Erh: 1.3 km, Erz: 0.9 km, Nf: 14, Gap: 193 °, Rms: 0.17


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.
ROROGU2025-11-05 11:05:44.6500.0030-0.261.122025-11-05 11:05:46.4800.0370-0.011.2610.9
PVTIT2025-11-05 11:05:47.1100.0200-0.011.272025-11-05 11:05:50.5880.04000.140.6722.9
GBOSGU2025-11-05 11:05:48.3700.06630.051.102025-11-05 11:05:52.8680.04000.640.0031.0
MGROGU2025-11-05 11:05:48.4900.0120-0.281.022025-11-05 11:05:53.0700.0982-0.241.0131.5
IMIGU2025-11-05 11:05:48.7700.01900.031.222025-11-05 11:05:53.3450.14340.040.9733.0
MLIGIV2025-11-05 11:05:50.4350.0200-0.221.112025-11-05 11:05:56.3850.0400-0.211.0542.3
PCPGU2025-11-05 11:05:52.0730.0200-0.221.102025-11-05 11:05:59.2030.0400-0.041.1056.0


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
RORO GUHH0.311.60e-110.9266
PVT ITHN0.415.33e-222.9247
GBOS GUHH0.138.04e-331.0297
MGRO GUHH0.372.67e-231.5254
IMI GUHH0.212.28e-233.0225
PCP GUHH0.267.23e-356.032


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.
(°)
RORO GUHHZ1.8161e-52.1677e-68.0773e-73.0491e-71.3636e-76.4018e-52.5778e-61.9035e-74.4036e-810.9266
RORO GUHHN1.9396e-53.3498e-61.3551e-63.6229e-71.7976e-75.8527e-54.4148e-63.4002e-77.4071e-810.9266
RORO GUHHE2.7728e-53.8629e-61.1376e-62.9292e-71.8816e-77.8711e-53.5392e-63.5932e-78.0405e-810.9266
PVT ITHNZ5.2460e-66.0604e-73.7404e-73.1672e-71.6800e-71.0480e-51.7142e-61.9433e-71.6214e-822.9247
PVT ITHNN1.0619e-51.2566e-64.1376e-72.7624e-71.5500e-72.7819e-51.8512e-61.8081e-72.7071e-822.9247
PVT ITHNE9.9664e-61.0827e-64.2220e-73.0246e-71.9328e-71.5445e-52.5015e-61.8722e-72.6723e-822.9247
GBOS GUHHZ9.8535e-71.3344e-77.6940e-82.9611e-81.3055e-82.4859e-63.3131e-71.6288e-82.9997e-931.0297
GBOS GUHHN6.5842e-71.1207e-78.2495e-84.2781e-81.9561e-82.1436e-63.8734e-72.4419e-83.3241e-931.0297
GBOS GUHHE6.4189e-71.0069e-75.7084e-82.4645e-89.9400e-92.4440e-62.6952e-71.4088e-82.1037e-931.0297
MGRO GUHHZ1.1399e-61.6646e-71.7323e-78.4399e-83.0282e-83.0734e-61.1811e-64.3975e-85.1956e-931.5254
MGRO GUHHN2.2232e-63.2188e-71.9157e-78.3541e-83.4753e-85.4012e-61.3261e-64.5424e-89.2802e-931.5254
MGRO GUHHE1.6728e-62.8927e-72.2364e-77.8331e-83.5308e-84.9075e-61.6621e-65.5946e-88.7579e-931.5254
IMI GUHHZ1.0089e-61.4953e-78.8425e-83.6114e-81.8017e-82.5935e-64.8129e-72.4395e-83.7861e-933.0225
IMI GUHHN4.0103e-64.8556e-72.2877e-77.0875e-83.3639e-88.6409e-61.1316e-65.3893e-81.0640e-833.0225
IMI GUHHE1.8241e-62.5587e-71.3289e-75.3562e-82.1838e-84.1773e-67.6945e-73.3523e-86.1658e-933.0225
PCP GUHHZ5.8692e-77.6107e-84.9640e-82.4706e-89.7341e-91.2276e-63.1678e-71.5162e-81.9315e-956.032
PCP GUHHN7.3465e-79.0377e-84.1738e-82.1078e-81.0077e-81.7856e-62.6379e-71.3935e-82.0970e-956.032
PCP GUHHE6.9876e-71.2159e-76.2319e-82.6138e-81.3521e-82.4457e-63.1209e-71.9999e-82.5425e-956.032
*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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