MANUAL Location - Area: Alpi Pennine , magnitude (ML): 1.3
2025-10-18 12:55:45 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-10-18 14:21:58

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Earthquake info - Manual location
Event - ID :251018125416
Magnitude (ML) :1.3 +/- 0.2
Origin Time :2025-10-18 12:55:45.871 (UTC)
Location : Latitude: 45.908 N, Longitude: 7.025 E
Area :Alpi Pennine
Depth (km) :6.10
Distances (km) : 13.3 --- Courmayeur
15.2 --- Saint-Rhemy-En-Bosses
16.2 --- Pre -Saint-Didier
16.6 --- Morgex
17.1 --- Saint-Oyen
18.2 --- La Salle
18.5 --- Etroubles
21.9 --- La Thuile
22.0 --- Allein
22.9 --- Ollomont
23.7 --- Avise
23.8 --- Saint-Nicolas
23.9 --- Doues
25.0 --- Valpelline
25.2 --- Arvier
25.2 --- Gignod
26.1 --- Roisan
26.8 --- Villeneuve
27.0 --- Saint-Pierre
27.1 --- Introd

Quality location estimate: Erh: 1.1 km, Erz: 0.8 km, Nf: 44, Gap: 151 °, 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.
BLANCGU2025-10-18 12:55:48.9800.00600.011.582025-10-18 12:55:50.5100.2226-0.521.0213.7
REMYGU2025-10-18 12:55:49.6100.00700.240.812025-10-18 12:55:51.7100.0370-0.011.5815.4
MRGEIV2025-10-18 12:55:49.6200.00800.011.592025-10-18 12:55:51.6000.0471-0.531.0617.4
AOSAIT2025-10-18 12:55:52.5740.02000.440.532025-10-18 12:55:56.8450.04000.320.8232.9
DIXCH2025-10-18 12:55:53.1600.1326-0.101.402025-10-18 12:55:57.8400.1053-0.491.0636.0
RSLFR2025-10-18 12:55:53.3500.0190-0.181.232025-10-18 12:55:57.7900.1223-0.950.4239.9
LSDGU2025-10-18 12:55:55.1900.02510.011.482025-10-18 12:56:01.1100.1494-0.461.0951.2
CIROGU2025-10-18 12:55:55.9100.0271-0.351.122025-10-18 12:56:02.1000.1574-1.450.1854.8
SENINCH2025-10-18 12:55:56.4550.0281-0.071.472025-10-18 12:56:03.6280.3217-0.351.1055.5
VANNICH2025-10-18 12:55:56.6300.04320.320.812025-10-18 12:56:02.9070.1675-0.590.9256.0
SATIGU2025-10-18 12:55:57.3600.0331-0.541.022025-10-18 12:56:05.4970.2907-1.200.3566.0
EMBDCH2025-10-18 12:55:58.8630.0200-0.021.432025-10-18 12:56:07.1600.2116-0.710.7771.5
CANIGU2025-10-18 12:55:59.0560.02000.290.882025-10-18 12:56:07.1010.0400-0.421.1274.0
MMKCH2025-10-18 12:55:59.5400.03810.370.722025-10-18 12:56:08.1920.1002-0.291.2374.8
LATOIV2025-10-18 12:55:59.2820.0200-0.011.422025-10-18 12:56:07.5100.0400-0.850.5875.8
OGMOFR2025-10-18 12:56:00.3300.0412-0.081.402025-10-18 12:56:09.9600.2476-0.371.1182.4
SIMPLCH2025-10-18 12:56:01.1690.0200-0.171.342025-10-18 12:56:10.9000.2527-1.190.3685.5
RSPGU2025-10-18 12:56:01.3100.04320.310.862025-10-18 12:56:10.7360.3297-0.630.8686.8
FIESACH2025-10-18 12:56:04.3890.02000.071.272025-10-18 12:56:17.0710.0400-0.051.21102.4
RRLGU2025-10-18 12:56:05.1100.0552-0.331.212025-10-18 12:56:18.0200.4799-0.870.65111.5
BHBGU2025-10-18 12:56:06.9200.06030.550.402025-10-18 12:56:20.3740.0400-0.221.18120.8


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
BLANCGUHH1.391.28e+013.7225
REMY GUHH1.227.00e-115.4127
MRGE IVHH1.571.07e+017.4170
AOSA ITHN1.573.91e-132.9125
DIX CHHH1.663.99e-136.057
LSD GUHH1.308.61e-251.2170
CIRO GUHH1.506.41e-254.8129
SENINCHHH1.226.07e-255.523
VANNICHHH1.003.65e-256.053
SATI GUHH1.202.33e-266.093
EMBD CHHH0.941.86e-271.561
CANI GUHH1.283.82e-274.0135
MMK CHHH1.101.33e-274.877
SIMPLCHHH0.891.11e-285.564
RSP GUHH1.313.04e-286.8167
FIESACHHH1.603.73e-2102.455
RRL GUHH1.045.66e-3111.5190
BHB GUHH1.411.46e-2120.8171


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.
(°)
BLANCGUHHZ1.0280e-41.3107e-55.6581e-61.8713e-69.3992e-72.0294e-42.1164e-51.6096e-63.4122e-713.7225
BLANCGUHHN1.1818e-42.1382e-58.2034e-62.8501e-61.6321e-62.4198e-43.7951e-52.8220e-65.6754e-713.7225
BLANCGUHHE1.2091e-41.8974e-59.1524e-63.4974e-61.9553e-64.3997e-42.6385e-53.2735e-65.6293e-713.7225
REMY GUHHZ4.1584e-54.8589e-62.5905e-66.1683e-73.1994e-75.5514e-51.1072e-55.5055e-71.1704e-715.4127
REMY GUHHN6.3691e-59.7079e-63.3308e-61.6671e-68.6620e-71.0792e-41.8253e-51.2566e-62.0976e-715.4127
REMY GUHHE7.9083e-59.7587e-64.6144e-61.5226e-69.8912e-71.2546e-42.0228e-51.6244e-62.8607e-715.4127
MRGE IVHHZ2.2256e-42.1969e-53.2458e-61.2219e-67.1501e-71.2921e-41.6246e-51.5715e-63.7297e-717.4170
MRGE IVHHN3.7712e-43.9286e-56.1149e-62.2538e-61.2431e-63.6392e-42.2710e-52.9645e-67.7814e-717.4170
MRGE IVHHE3.7149e-43.0719e-55.8996e-62.4105e-61.1948e-61.9180e-42.8485e-52.5049e-65.5016e-717.4170
AOSA ITHNZ3.6233e-54.0605e-62.9157e-61.3005e-65.7177e-75.9127e-51.2285e-57.3080e-79.8240e-832.9125
AOSA ITHNN2.7042e-56.0342e-63.9636e-61.3463e-66.8194e-79.9945e-51.6678e-58.9114e-71.3647e-732.9125
AOSA ITHNE3.7845e-55.1790e-63.5743e-61.5570e-66.0041e-77.4935e-51.5888e-57.5355e-71.2717e-732.9125
DIX CHHHZ5.1164e-55.0426e-63.0546e-61.0368e-64.7378e-77.1233e-51.1561e-57.2754e-71.2745e-736.057
DIX CHHHN5.0348e-56.3097e-63.5448e-69.7012e-74.8317e-71.2593e-41.5619e-57.8155e-71.2934e-736.057
DIX CHHHE7.2048e-58.4111e-63.3150e-61.2368e-65.6202e-71.5847e-41.4994e-58.8721e-71.8242e-736.057
LSD GUHHZ8.2965e-69.7867e-73.3963e-71.5161e-76.4689e-81.4879e-51.1833e-61.0737e-71.8357e-851.2170
LSD GUHHN1.7463e-51.8669e-63.1491e-79.9439e-85.5975e-81.7457e-51.4976e-61.1956e-72.9207e-851.2170
LSD GUHHE2.5651e-52.1040e-67.5661e-72.3496e-71.1502e-72.3682e-53.5388e-61.8390e-74.1392e-851.2170
CIRO GUHHZ9.7517e-69.9049e-73.3757e-71.1891e-75.1649e-81.3434e-51.7313e-67.9130e-81.9923e-854.8129
CIRO GUHHN1.2177e-51.0297e-64.8731e-71.8716e-78.1918e-81.0938e-51.9412e-61.3342e-72.1875e-854.8129
CIRO GUHHE8.2797e-68.3555e-72.4967e-71.0428e-75.3550e-81.4169e-51.4113e-68.7588e-81.6569e-854.8129
SENINCHHHZ7.5787e-61.4091e-61.0082e-63.1167e-71.7066e-72.6384e-54.4123e-62.5946e-74.4059e-855.523
SENINCHHHN7.0628e-68.7764e-75.0038e-71.3856e-76.3980e-82.2471e-52.4685e-69.0232e-81.8969e-855.523
SENINCHHHE9.1139e-61.0241e-65.1328e-71.5953e-78.7778e-81.3968e-52.0695e-61.5142e-72.3566e-855.523
VANNICHHHZ1.7189e-62.6940e-72.1736e-71.1154e-75.0379e-84.2961e-61.2346e-66.0735e-87.3308e-956.053
VANNICHHHN2.3098e-63.6606e-73.2155e-72.1232e-77.8016e-85.7777e-61.3705e-61.0955e-71.1334e-856.053
VANNICHHHE1.9219e-62.8634e-72.2293e-71.6002e-75.3260e-85.4154e-61.2549e-66.2628e-89.7131e-956.053
SATI GUHHZ2.7045e-62.6348e-79.0901e-82.6056e-81.4355e-86.0535e-63.5199e-72.4561e-85.4716e-966.093
SATI GUHHN5.5417e-66.1787e-71.4912e-74.3752e-82.5432e-81.1684e-54.6681e-75.6115e-81.4187e-866.093
SATI GUHHE3.9105e-65.4311e-71.5877e-74.5152e-82.9298e-81.3528e-54.2651e-75.2821e-81.2842e-866.093
EMBD CHHHZ1.8552e-64.3704e-72.4090e-72.0707e-71.0280e-73.9582e-61.2987e-61.1987e-71.5041e-871.561
EMBD CHHHN1.6270e-62.2453e-71.6739e-77.7471e-83.2655e-84.8594e-68.2394e-74.7852e-87.0707e-971.561
EMBD CHHHE1.6447e-62.6311e-71.8385e-77.3443e-83.0999e-83.0313e-69.9672e-73.9247e-86.3300e-971.561
CANI GUHHZ5.8320e-66.7745e-72.1204e-76.0790e-83.4878e-89.5427e-66.4373e-76.4253e-81.4259e-874.0135
CANI GUHHN7.8516e-68.3496e-72.7953e-78.1054e-83.9436e-88.9074e-61.1553e-67.1770e-81.7003e-874.0135
CANI GUHHE7.3555e-69.5125e-73.2493e-78.0975e-84.6840e-81.9748e-51.0738e-68.2646e-81.7651e-874.0135
MMK CHHHZ1.9405e-62.8369e-71.5420e-74.0150e-82.0209e-85.8005e-67.3037e-72.6414e-85.9189e-974.877
MMK CHHHN2.4226e-62.9076e-71.4169e-74.2058e-82.2259e-87.1425e-65.4350e-73.3065e-87.0081e-974.877
MMK CHHHE2.5755e-62.3228e-79.3103e-82.7961e-81.2645e-85.0435e-64.1128e-72.1919e-85.2188e-974.877
SIMPLCHHHZ1.2207e-61.8930e-71.3235e-74.2387e-81.9132e-83.3795e-66.7637e-72.3163e-84.3199e-985.564
SIMPLCHHHN1.1521e-61.7819e-71.2151e-74.5246e-82.0357e-83.2971e-66.5207e-72.5227e-84.5607e-985.564
SIMPLCHHHE1.4166e-61.6841e-71.0270e-73.5381e-81.3089e-83.5392e-65.4114e-71.8920e-83.8967e-985.564
RSP GUHHZ1.8473e-63.0013e-71.8170e-74.5035e-82.2835e-83.7114e-68.1869e-73.6501e-86.5537e-986.8167
RSP GUHHN2.5717e-64.0696e-72.4903e-75.5825e-83.3710e-86.8252e-61.2217e-65.2285e-88.3861e-986.8167
RSP GUHHE2.5993e-64.9735e-73.0167e-76.2259e-83.6296e-89.2487e-61.5134e-65.7455e-81.2159e-886.8167
FIESACHHHZ2.0783e-62.6866e-72.2523e-71.2816e-75.5480e-84.6808e-61.3031e-67.3120e-86.8187e-9102.455
FIESACHHHN1.9265e-63.4513e-73.1736e-71.3886e-77.3729e-83.5268e-61.9675e-68.7269e-81.0977e-8102.455
FIESACHHHE2.0071e-63.8814e-72.8391e-71.6400e-78.0216e-84.8128e-62.1602e-68.4384e-89.2574e-9102.455
RRL GUHHZ5.9399e-78.8178e-83.4438e-81.4652e-87.2467e-97.6591e-71.4156e-71.1240e-81.3628e-9111.5190
RRL GUHHN3.2968e-75.3603e-84.8055e-82.4865e-81.1796e-81.0916e-62.6593e-71.4007e-81.4757e-9111.5190
RRL GUHHE2.2421e-75.2712e-85.1701e-82.6070e-81.1168e-88.5371e-72.4833e-71.5642e-81.6441e-9111.5190
BHB GUHHZ6.9858e-71.6442e-71.0976e-75.6942e-83.3873e-82.0784e-63.2242e-76.1015e-83.6605e-9120.8171
BHB GUHHN8.0769e-71.9438e-71.2096e-73.9113e-82.0170e-82.8412e-65.7321e-74.4902e-84.7676e-9120.8171
BHB GUHHE6.4804e-71.4758e-71.0335e-73.6178e-82.4129e-81.9381e-63.7244e-74.9411e-83.8950e-9120.8171
*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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