MANUAL Location - Area: Alpi Graie , magnitude (ML): 1.0
2025-12-10 11:16:01 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-12-11 08:20:37

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Earthquake info - Manual location
Event - ID :251210111400
Magnitude (ML) :1.0 +/- 0.2
Origin Time :2025-12-10 11:16:01.068 (UTC)
Location : Latitude: 45.136 N, Longitude: 6.983 E
Area :Alpi Graie
Depth (km) :7.79
Distances (km) : 1.8 --- Chiomonte
2.5 --- Giaglione
3.3 --- Gravere
3.3 --- Venaus
4.6 --- Mompantero
5.4 --- Susa
5.9 --- Exilles
6.6 --- Novalesa
7.0 --- Meana di Susa
7.8 --- Moncenisio
10.3 --- Usseaux
10.3 --- Salbertrand
10.7 --- Mattie
12.5 --- Fenestrelle
13.0 --- Bussoleno
14.0 --- Pragelato
14.7 --- Chianocco
15.4 --- Sauze d Oulx
15.4 --- San Giorio di Susa
16.3 --- Oulx

Quality location estimate: Erh: 0.9 km, Erz: 1.9 km, Nf: 24, Gap: 113 °, Rms: 0.32


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.
RSPGU2025-12-10 11:16:06.0100.01400.141.052025-12-10 11:16:08.7800.0661-0.381.3424.0
RRLGU2025-12-10 11:16:06.9100.0170-0.021.422025-12-10 11:16:10.5100.0862-0.441.3230.0
LSDGU2025-12-10 11:16:08.5500.02110.041.502025-12-10 11:16:13.2320.1885-0.311.3239.2
BHBGU2025-12-10 11:16:08.7300.0221-0.001.482025-12-10 11:16:13.0190.1193-0.950.3240.9
LATOIV2025-12-10 11:16:06.4420.0200-2.500.002025-12-10 11:16:13.9260.0400-0.451.3042.4
OGAGFR2025-12-10 11:16:11.0000.02810.200.842025-12-10 11:16:17.1820.0400-0.491.2352.9
CANIGU2025-12-10 11:16:12.7580.02000.051.392025-12-10 11:16:20.3690.0400-0.361.3165.2
RSLFR2025-12-10 11:16:10.2720.0200-3.080.002025-12-10 11:16:21.1010.1002-0.591.0367.9
CIROGU2025-12-10 11:16:13.5420.0200-0.670.822025-12-10 11:16:21.5500.2076-1.480.1369.8
PZZGU2025-12-10 11:16:13.3500.0422-0.291.272025-12-10 11:16:21.1500.2116-1.360.1771.3
MRGEIV2025-12-10 11:16:14.0200.0803-0.041.362025-12-10 11:16:22.7220.0400-0.091.3271.4
OROIV2025-12-10 11:16:17.0300.0200-0.531.162025-12-10 11:16:28.6840.4959-0.280.9395.6


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
RSP GUHH0.981.93e-124.086
RRL GUHH0.593.27e-230.0212
LSD GUHH0.865.44e-239.218
BHB GUHH0.935.27e-240.9146
OGAG FRHH0.722.14e-252.9222
CANI GUHH0.942.28e-265.259
CIRO GUHH1.372.87e-269.841
PZZ GUHH1.226.10e-271.3171
MRGE IVHH1.042.03e-271.45


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 GUHHZ2.5803e-52.9027e-68.3153e-72.5468e-71.5490e-71.8503e-53.0973e-62.8818e-75.8341e-824.086
RSP GUHHN4.0806e-54.2783e-61.4312e-63.6359e-72.2098e-76.6132e-55.2225e-64.3414e-79.4329e-824.086
RSP GUHHE2.4989e-53.7173e-61.5598e-63.7173e-72.0863e-78.8752e-53.9852e-63.9290e-78.2715e-824.086
RRL GUHHZ4.1335e-65.0312e-71.7020e-78.3991e-84.3120e-89.7385e-67.1014e-74.8980e-81.0148e-830.0212
RRL GUHHN4.3507e-66.3146e-73.5241e-71.3471e-76.4348e-81.0207e-51.5404e-67.8562e-81.2942e-830.0212
RRL GUHHE3.5262e-65.9387e-72.6943e-71.1402e-74.5550e-89.1360e-61.3108e-66.4236e-81.2568e-830.0212
LSD GUHHZ1.2186e-51.2814e-63.7148e-71.0620e-75.7957e-81.5601e-51.6513e-61.0169e-72.4905e-839.218
LSD GUHHN1.7497e-51.3836e-63.4584e-79.1961e-84.7563e-82.0509e-51.9964e-61.0124e-72.5191e-839.218
LSD GUHHE1.9762e-51.5880e-64.8257e-71.2891e-76.4135e-81.9511e-52.0767e-61.1966e-72.9182e-839.218
BHB GUHHZ7.0940e-68.8351e-72.8965e-78.5586e-84.4793e-82.1014e-51.0065e-67.4662e-81.9437e-840.9146
BHB GUHHN1.3259e-51.3235e-64.2544e-71.5901e-77.2315e-82.5588e-51.5930e-61.2432e-72.5272e-840.9146
BHB GUHHE9.5493e-68.8045e-72.8852e-79.7701e-84.4491e-81.3296e-51.0288e-68.1622e-81.7165e-840.9146
OGAG FRHHZ1.2782e-62.0523e-71.3839e-75.4264e-82.2099e-83.3731e-68.6960e-72.9214e-84.7338e-952.9222
OGAG FRHHN8.4933e-72.2233e-71.7956e-75.6257e-82.9464e-82.1229e-69.9258e-73.8577e-86.1074e-952.9222
OGAG FRHHE9.7607e-72.0023e-71.9232e-79.1650e-83.8915e-82.0290e-61.3732e-65.0592e-85.2089e-952.9222
CANI GUHHZ5.7518e-66.7453e-71.7522e-74.9601e-82.6987e-86.6563e-66.4214e-74.9395e-81.3007e-865.259
CANI GUHHN4.2763e-64.8607e-71.5711e-74.4539e-82.5942e-89.8303e-66.5928e-74.2948e-89.8385e-965.259
CANI GUHHE4.5020e-65.7479e-71.8454e-77.9127e-82.9253e-84.7614e-68.2075e-74.9381e-81.0604e-865.259
CIRO GUHHZ2.9837e-63.6181e-71.7274e-74.5870e-82.3748e-88.3756e-61.1904e-63.7703e-87.5901e-969.841
CIRO GUHHN4.6775e-64.9201e-72.2316e-76.4836e-82.6696e-89.3667e-61.2329e-65.3777e-81.1518e-869.841
CIRO GUHHE6.1826e-66.3210e-72.2909e-77.3040e-83.8805e-87.3953e-61.4907e-67.2479e-81.5001e-869.841
PZZ GUHHZ3.5020e-66.5041e-74.3745e-71.1355e-75.5156e-81.0595e-52.6135e-67.8415e-81.5591e-871.3171
PZZ GUHHN4.1639e-67.7402e-75.3485e-71.3172e-76.7909e-81.1180e-52.5054e-61.0663e-71.7334e-871.3171
PZZ GUHHE3.7714e-68.2892e-75.7167e-71.4824e-78.0062e-81.0058e-53.0390e-61.1843e-71.8836e-871.3171
MRGE IVHHZ2.1833e-62.1892e-77.0097e-82.8942e-81.2292e-82.5407e-64.5127e-71.8771e-83.9215e-971.45
MRGE IVHHN5.1911e-66.5859e-71.0502e-74.4127e-82.5467e-83.8610e-64.3632e-75.2189e-81.2246e-871.45
MRGE IVHHE3.4183e-62.9479e-77.3840e-83.1702e-81.5464e-83.4353e-63.5678e-72.6016e-85.2097e-971.45
ORO IVEHZ2.2478e-63.1963e-72.6162e-78.5823e-83.4349e-87.4663e-69.2293e-75.2460e-88.4926e-995.655
ORO IVEHN2.9476e-64.2499e-72.9972e-71.2663e-73.9700e-87.0312e-61.1728e-65.4808e-89.4836e-995.655
ORO IVEHE4.4869e-67.5535e-74.0854e-71.8643e-76.9758e-88.2646e-61.5939e-61.0779e-71.6430e-895.655
*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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