MANUAL Location - Area: Alpi Graie , magnitude (ML): 0.5
2025-11-17 02:46:14 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-11-17 08:22:16

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Earthquake info - Manual location
Event - ID :251117024521
Magnitude (ML) :0.5 +/- 0.2
Origin Time :2025-11-17 02:46:14.002 (UTC)
Location : Latitude: 45.213 N, Longitude: 7.128 E
Area :Alpi Graie
Depth (km) :10.09
Distances (km) : 7.6 --- Usseglio
7.7 --- Chianocco
8.3 --- Bussoleno
9.1 --- Novalesa
9.4 --- Bruzolo
10.0 --- Mompantero
10.1 --- San Giorio di Susa
10.3 --- Susa
10.4 --- Mattie
11.0 --- Meana di Susa
11.0 --- San Didero
11.0 --- Venaus
11.3 --- Moncenisio
12.1 --- Giaglione
12.2 --- Balme
12.9 --- Gravere
13.1 --- Lemie
13.2 --- Borgone Susa
13.9 --- Villar Focchiardo
15.1 --- Chiomonte

Quality location estimate: Erh: 1.1 km, Erz: 1.7 km, Nf: 22, Gap: 87 °, Rms: 0.57


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.
RSPGU2025-11-17 02:46:18.1900.05720.711.392025-11-17 02:46:19.8560.04000.001.6517.2
LATOIV2025-11-17 02:46:20.2770.02000.550.532025-11-17 02:46:23.6510.04000.001.5429.6
LSDGU2025-11-17 02:46:20.5130.02000.781.462025-11-17 02:46:23.7010.10020.071.2830.1
OGMOFR2025-11-17 02:46:21.5590.02000.761.472025-11-17 02:46:25.3650.0400-0.061.4036.3
RRLGU2025-11-17 02:46:23.2060.02001.110.262025-11-17 02:46:27.6580.0400-0.011.3843.7
BHBGU2025-11-17 02:46:22.9400.07330.890.992025-11-17 02:46:27.5890.0400-0.081.3044.6
CIROGU2025-11-17 02:46:24.9270.02000.051.412025-11-17 02:46:31.1700.2356-0.970.2456.6
MRGEIV2025-11-17 02:46:26.1990.02000.681.252025-11-17 02:46:33.1070.0400-0.180.9563.2
REMYGU2025-11-17 02:46:25.7730.0200-1.040.202025-11-17 02:46:34.1220.0400-1.380.1270.6
PZZGU2025-11-17 02:46:28.5540.02000.940.872025-11-17 02:46:36.7240.0400-0.550.2879.3
MMKCH2025-11-17 02:46:34.2890.02000.691.102025-11-17 02:46:47.2610.33470.290.93114.3


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
RSP GUHH0.551.32e-117.2124
LSD GUHH0.838.44e-230.11
RRL GUHH0.034.34e-343.7219
BHB GUHH0.381.26e-244.6166
CIRO GUHH0.506.01e-356.638
MRGE IVHH0.355.35e-363.2355
REMY GUHH0.659.89e-370.62
PZZ GUHH0.641.28e-279.3181
MMK CHHH0.661.77e-3114.335


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.
(°)
RSP GUHHZ1.7483e-51.7647e-65.1860e-71.8030e-78.2990e-82.6181e-51.9483e-61.7068e-73.6452e-817.2124
RSP GUHHN2.6503e-52.8257e-69.5100e-72.5275e-71.2472e-74.4395e-54.7066e-62.2482e-75.3146e-817.2124
RSP GUHHE2.2866e-52.3941e-61.1339e-62.6984e-71.4694e-74.4218e-55.9716e-62.5137e-75.5169e-817.2124
LSD GUHHZ1.0528e-51.3849e-63.5477e-79.6847e-86.3299e-81.5722e-51.1798e-61.2823e-73.0996e-830.11
LSD GUHHN1.3972e-51.5449e-63.4997e-71.0185e-76.0904e-81.4307e-51.8691e-61.2710e-73.2128e-830.11
LSD GUHHE1.0749e-51.7562e-65.9968e-71.7656e-71.1496e-72.6566e-52.2349e-61.9349e-73.4469e-830.11
RRL GUHHZ6.6861e-76.8202e-82.3695e-89.5315e-96.7355e-91.1200e-61.1120e-79.7127e-91.6360e-943.7219
RRL GUHHN5.6344e-78.1085e-83.8404e-81.5480e-81.3390e-81.3756e-62.0021e-71.9844e-81.8449e-943.7219
RRL GUHHE5.6000e-75.4905e-83.3303e-81.4401e-88.3428e-91.1223e-61.5210e-71.3065e-81.2793e-943.7219
BHB GUHHZ1.5019e-62.0220e-76.9798e-81.6462e-81.8837e-83.9105e-62.1005e-74.3754e-84.0932e-944.6166
BHB GUHHN1.6089e-62.2510e-71.1311e-72.6151e-82.1086e-84.4058e-65.0184e-74.0617e-85.8532e-944.6166
BHB GUHHE1.5713e-61.6888e-75.9563e-81.9809e-81.5885e-82.5804e-62.2205e-73.6640e-83.3665e-944.6166
CIRO GUHHZ9.2120e-78.5133e-83.2116e-88.2849e-95.3493e-91.5037e-61.7842e-78.3785e-91.6879e-956.638
CIRO GUHHN1.3028e-61.1419e-73.8559e-81.4255e-88.4257e-91.2418e-61.6822e-71.2627e-82.5427e-956.638
CIRO GUHHE1.4867e-61.2427e-74.7239e-81.4035e-86.9907e-91.6106e-61.7387e-71.3294e-82.7172e-956.638
MRGE IVHHZ8.6370e-78.3189e-82.1185e-88.1461e-96.1507e-97.7953e-71.5362e-71.0095e-81.3520e-963.2355
MRGE IVHHN1.5670e-61.4770e-72.9526e-81.4459e-81.1399e-81.4027e-61.2106e-72.2172e-83.0292e-963.2355
MRGE IVHHE1.2087e-61.0409e-72.5878e-81.1937e-89.2122e-99.7705e-79.8002e-81.2894e-82.4183e-963.2355
REMY GUHHZ3.2509e-74.4236e-82.2136e-81.3750e-89.3003e-96.5927e-71.2082e-71.0254e-81.1240e-970.62
REMY GUHHN3.6105e-77.3296e-83.1225e-82.5409e-84.5660e-88.2788e-71.5214e-78.8996e-81.0601e-870.62
REMY GUHHE4.7764e-77.4308e-83.2299e-82.8019e-83.5457e-81.0190e-61.6507e-76.5850e-89.2576e-970.62
PZZ GUHHZ7.6118e-71.3247e-71.0923e-73.1881e-82.0112e-81.6532e-64.9118e-73.5709e-83.3785e-979.3181
PZZ GUHHN8.8340e-71.5038e-71.1852e-73.9840e-82.3959e-82.2741e-65.9837e-73.3913e-83.9049e-979.3181
PZZ GUHHE8.4061e-71.4979e-71.2166e-73.7803e-81.8632e-82.2306e-68.4726e-72.6048e-83.9949e-979.3181
MMK CHHHZ1.9215e-72.1311e-81.1991e-86.8993e-96.4113e-93.5518e-74.3363e-89.3603e-97.4457e-10114.335
MMK CHHHN1.3672e-72.1801e-81.5293e-88.4079e-95.7406e-94.9448e-77.0228e-87.9708e-97.1501e-10114.335
MMK CHHHE1.6965e-71.7857e-81.1293e-87.3074e-95.3701e-92.0098e-75.0315e-87.7627e-95.5563e-10114.335
*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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