MANUAL Location - Area: Alpi Pennine , magnitude (ML): 1.6
2025-10-31 03:48:14 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-10-31 09:51:21

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Earthquake info - Manual location
Event - ID :251031034749
Magnitude (ML) :1.6 +/- 0.2
Origin Time :2025-10-31 03:48:14.544 (UTC)
Location : Latitude: 45.900 N, Longitude: 7.037 E
Area :Alpi Pennine
Depth (km) :6.69
Distances (km) : 12.8 --- Courmayeur
14.0 --- Saint-Rhemy-En-Bosses
15.6 --- Pre -Saint-Didier
15.8 --- Morgex
15.9 --- Saint-Oyen
17.3 --- La Salle
17.3 --- Etroubles
20.8 --- Allein
21.4 --- La Thuile
21.8 --- Ollomont
22.6 --- Avise
22.7 --- Saint-Nicolas
22.7 --- Doues
23.8 --- Valpelline
24.0 --- Gignod
24.0 --- Arvier
24.9 --- Roisan
25.6 --- Villeneuve
25.8 --- Saint-Pierre
26.0 --- Introd

Quality location estimate: Erh: 0.8 km, Erz: 0.9 km, Nf: 52, Gap: 58 °, Rms: 0.34


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.
BLANCGU2025-10-31 03:48:17.9200.00600.191.202025-10-31 03:48:19.4450.0400-0.410.4414.2
REMYGU2025-10-31 03:48:18.5500.00800.650.492025-10-31 03:48:20.5660.04110.411.3414.8
MRGEIV2025-10-31 03:48:18.5600.00900.431.342025-10-31 03:48:20.5400.0481-0.011.5116.8
AOSAIT2025-10-31 03:48:21.5050.02000.890.312025-10-31 03:48:25.8030.04000.920.3031.8
DIXCH2025-10-31 03:48:22.2300.06230.351.342025-10-31 03:48:26.7800.1083-0.151.0735.9
RSLFR2025-10-31 03:48:22.3200.02000.061.512025-10-31 03:48:26.7600.1213-0.760.2740.2
LSDGU2025-10-31 03:48:24.1400.02610.451.222025-10-31 03:48:29.8200.1494-0.141.0750.4
CIROGU2025-10-31 03:48:24.7400.02810.001.472025-10-31 03:48:31.0360.1635-0.850.2453.7
VANNICH2025-10-31 03:48:25.6450.02810.720.512025-10-31 03:48:32.0880.18150.001.2455.9
SENINCH2025-10-31 03:48:25.4000.02810.131.422025-10-31 03:48:32.5830.3007-0.170.9756.0
SATIGU2025-10-31 03:48:26.3200.0331-0.101.222025-10-31 03:48:34.8590.1002-0.250.8865.1
EMBDCH2025-10-31 03:48:27.7850.06030.311.342025-10-31 03:48:35.9850.2146-0.440.6371.1
CANIGU2025-10-31 03:48:28.7400.02001.500.012025-10-31 03:48:36.8620.04001.010.2672.8
MMKCH2025-10-31 03:48:27.8100.03810.091.442025-10-31 03:48:37.3200.22260.351.1574.2
LATOIV2025-10-31 03:48:28.2640.02000.491.092025-10-31 03:48:36.4600.0400-0.250.8874.7
OROIV2025-10-31 03:48:28.9300.02000.191.402025-10-31 03:48:38.7800.2386-0.071.0879.7
LAUCHCH2025-10-31 03:48:29.5600.04120.411.222025-10-31 03:48:39.6200.37780.301.0381.0
OGMOFR2025-10-31 03:48:29.1400.04120.131.422025-10-31 03:48:38.6300.4219-0.250.8482.0
SIMPLCH2025-10-31 03:48:30.0400.04320.121.422025-10-31 03:48:39.7450.3467-0.870.3085.1
RSPGU2025-10-31 03:48:29.9120.02000.411.232025-10-31 03:48:39.1900.3858-0.560.5685.8
FIESACH2025-10-31 03:48:33.2860.02000.361.262025-10-31 03:48:46.0590.04000.371.13102.2
RRLGU2025-10-31 03:48:33.8480.0200-0.161.052025-10-31 03:48:47.6590.04000.271.18110.9
BHBGU2025-10-31 03:48:35.6110.02000.740.602025-10-31 03:48:49.0900.44090.110.93119.9


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.		 Dist. (km) Azimuth
BLANCGUHH1.632.09e+014.2232
REMY GUHH1.441.27e+014.8127
MRGE IVHH1.892.37e+016.8173
AOSA ITHN1.776.48e-131.8125
DIX CHHH1.968.06e-135.955
LSD GUHH1.621.89e-150.4171
CIRO GUHH1.761.21e-153.7129
VANNICHHH1.266.67e-255.951
SENINCHHH1.471.08e-156.021
SATI GUHH1.484.56e-265.192
EMBD CHHH1.223.58e-271.160
CANI GUHH1.567.55e-272.8135
MMK CHHH1.452.97e-274.276
ORO IVEH1.728.97e-279.7112
LAUCHCHHH1.545.71e-281.044
SIMPLCHHH1.222.41e-285.163
RSP GUHH1.595.93e-285.8168
FIESACHHH1.897.30e-2102.254
RRL GUHH1.311.08e-2110.9190
BHB GUHH1.642.57e-2119.9171


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.
(°)
BLANCGUHHZ2.0995e-42.4341e-51.0663e-53.2673e-61.6006e-63.1223e-44.0125e-52.9256e-65.8104e-714.2232
BLANCGUHHN2.3746e-44.3146e-51.5166e-55.2470e-62.8841e-64.9644e-47.1974e-54.9779e-61.0641e-614.2232
BLANCGUHHE2.1297e-43.1626e-51.5621e-55.9954e-63.1640e-66.8236e-44.2940e-55.2043e-68.6676e-714.2232
REMY GUHHZ8.3438e-51.0198e-55.0387e-61.1449e-65.9835e-71.2357e-42.1204e-59.1782e-72.1578e-714.8127
REMY GUHHN1.1447e-41.8048e-56.4109e-63.0393e-61.6547e-62.5308e-43.1820e-52.5805e-63.9423e-714.8127
REMY GUHHE1.0902e-41.8195e-58.6227e-62.8032e-61.7476e-61.9413e-43.8252e-52.9238e-65.0161e-714.8127
MRGE IVHHZ4.0037e-44.2126e-56.6909e-62.4610e-61.4215e-62.9065e-43.4885e-53.0692e-67.4471e-716.8173
MRGE IVHHN7.9880e-47.6790e-51.3719e-55.0744e-62.7775e-68.9069e-45.1713e-56.3027e-61.6949e-616.8173
MRGE IVHHE6.3149e-46.1412e-51.3080e-55.0296e-62.4478e-64.8484e-45.4831e-55.0709e-61.3284e-616.8173
AOSA ITHNZ4.3746e-56.1929e-64.6283e-62.0886e-68.5103e-79.6761e-51.7743e-51.2367e-61.8264e-731.8125
AOSA ITHNN4.9663e-59.7482e-67.1966e-62.1517e-61.0956e-61.7831e-43.6984e-51.4572e-62.6416e-731.8125
AOSA ITHNE4.7490e-58.4478e-67.2717e-63.1435e-61.1737e-61.9604e-43.7828e-51.3942e-62.0353e-731.8125
DIX CHHHZ9.0332e-51.0960e-56.7150e-62.2525e-61.0966e-61.5937e-42.2792e-51.6540e-62.7877e-735.955
DIX CHHHN8.1565e-51.2771e-56.9202e-61.9443e-69.5830e-71.8885e-43.1326e-51.5783e-62.5989e-735.955
DIX CHHHE1.4534e-41.7514e-56.8744e-62.4268e-61.0193e-63.7193e-43.0777e-51.4549e-63.6277e-735.955
LSD GUHHZ1.4960e-51.8892e-67.5254e-73.1104e-71.3398e-72.4829e-52.3417e-61.9047e-73.0630e-850.4171
LSD GUHHN3.0161e-52.9519e-66.8176e-72.0469e-71.1025e-73.5994e-53.0087e-62.1738e-75.8658e-850.4171
LSD GUHHE3.7519e-54.0430e-61.6438e-65.0617e-72.5362e-75.5355e-57.5579e-63.9174e-79.3178e-850.4171
CIRO GUHHZ1.2945e-51.4645e-66.2435e-72.2919e-71.0073e-72.3282e-53.1538e-61.5224e-73.2602e-853.7129
CIRO GUHHN1.4677e-51.5076e-69.0991e-73.5793e-71.5051e-71.8431e-53.5990e-62.5509e-74.6043e-853.7129
CIRO GUHHE1.2497e-51.4874e-64.6928e-71.9241e-79.8933e-82.4565e-52.8544e-61.5097e-72.7044e-853.7129
VANNICHHHZ3.0077e-65.6587e-74.2910e-72.2229e-71.0547e-77.9620e-62.5722e-61.3341e-71.4230e-855.951
VANNICHHHN3.7566e-66.5661e-76.0005e-73.5397e-71.0427e-78.0149e-62.5951e-61.4068e-72.1849e-855.951
VANNICHHHE3.2069e-65.6713e-74.4283e-73.1670e-71.0601e-79.2934e-62.6039e-61.1935e-71.5710e-855.951
SENINCHHHZ1.2872e-52.9798e-62.0210e-66.1322e-73.3910e-74.4028e-58.8907e-65.2016e-78.5719e-856.021
SENINCHHHN1.2353e-51.5260e-69.4263e-72.9549e-71.4173e-74.3458e-54.5009e-62.0827e-73.4352e-856.021
SENINCHHHE1.6854e-52.0112e-61.0001e-62.9898e-71.5793e-73.3777e-53.8990e-62.6662e-74.5231e-856.021
SATI GUHHZ4.5361e-64.6044e-71.7423e-75.3418e-82.3155e-81.1885e-55.5680e-74.0287e-89.3611e-965.192
SATI GUHHN9.6538e-61.2138e-62.8950e-78.6521e-85.4685e-82.3800e-59.1390e-71.1570e-72.6667e-865.192
SATI GUHHE8.4046e-61.1451e-63.0362e-79.2099e-85.7868e-82.3932e-58.5069e-71.1105e-72.4777e-865.192
EMBD CHHHZ2.7567e-67.0162e-74.1991e-72.9940e-71.4070e-77.3803e-62.3528e-61.7470e-72.3206e-871.160
EMBD CHHHN3.5297e-64.4920e-73.1825e-71.5485e-76.3364e-88.2808e-61.5719e-69.0207e-81.3200e-871.160
EMBD CHHHE2.5887e-65.0094e-73.4815e-71.4840e-76.2005e-85.3036e-62.0334e-68.3576e-81.2125e-871.160
CANI GUHHZ7.8644e-61.3287e-64.2174e-71.2195e-77.5918e-81.9837e-51.3222e-61.3084e-72.9609e-872.8135
CANI GUHHN8.7958e-61.1150e-65.9418e-71.6279e-76.7583e-81.9841e-52.3291e-61.1061e-72.3538e-872.8135
CANI GUHHE1.1371e-51.4237e-66.5035e-71.5999e-79.8231e-83.8209e-52.2541e-61.7106e-73.4123e-872.8135
MMK CHHHZ3.5322e-66.0060e-72.9864e-78.1291e-83.7250e-81.0386e-51.3341e-65.4769e-81.2576e-874.276
MMK CHHHN4.9347e-65.8873e-72.8891e-78.3452e-83.8304e-81.6245e-51.0929e-66.4272e-81.4030e-874.276
MMK CHHHE3.2485e-63.3522e-71.8106e-75.6226e-82.6515e-81.0362e-58.4350e-74.1758e-87.3771e-974.276
ORO IVEHZ4.9442e-69.1615e-75.2897e-71.3950e-77.7814e-81.2510e-53.0334e-61.1456e-72.2634e-879.7112
ORO IVEHN7.2350e-61.1228e-69.0204e-73.0073e-71.3767e-72.4714e-55.3090e-61.9546e-72.9958e-879.7112
ORO IVEHE6.6973e-69.9173e-76.8288e-71.8756e-77.9883e-81.6071e-53.0849e-61.3068e-72.2882e-879.7112
LAUCHCHHHZ2.6418e-64.0946e-72.4806e-79.6787e-83.9277e-89.5084e-61.0143e-65.9259e-89.3450e-981.044
LAUCHCHHHN3.8458e-68.2609e-74.4181e-71.3231e-76.3500e-82.3296e-51.5971e-61.0991e-71.7963e-881.044
LAUCHCHHHE4.7483e-68.7198e-76.3624e-71.8471e-78.1137e-81.7665e-53.1850e-61.2224e-72.2117e-881.044
SIMPLCHHHZ1.6205e-63.4875e-72.6333e-77.8700e-82.9633e-85.8048e-61.3394e-64.2382e-88.0926e-985.163
SIMPLCHHHN2.1691e-63.2887e-72.3987e-78.9080e-84.0976e-86.1431e-61.2393e-65.9299e-88.9267e-985.163
SIMPLCHHHE2.4109e-63.0985e-71.9760e-76.6144e-82.6423e-85.3675e-69.2152e-73.4644e-86.4059e-985.163
RSP GUHHZ3.4931e-66.4200e-73.5486e-78.7623e-84.0754e-86.4864e-61.5948e-66.8530e-81.2953e-885.8168
RSP GUHHN3.5769e-68.1102e-75.3121e-71.1708e-76.5990e-81.1849e-52.6210e-61.0105e-71.8345e-885.8168
RSP GUHHE5.0903e-69.9313e-75.8730e-71.1775e-76.9953e-81.9954e-53.4398e-61.1599e-72.1262e-885.8168
FIESACHHHZ3.7379e-65.0232e-74.0363e-72.4819e-79.3872e-88.3358e-62.2242e-61.0836e-71.3244e-8102.254
FIESACHHHN3.4910e-66.7161e-76.2829e-72.8810e-71.7116e-77.3481e-65.0103e-62.2008e-72.1531e-8102.254
FIESACHHHE3.2809e-67.0711e-75.3504e-73.2288e-71.5511e-78.6705e-63.9801e-61.6133e-72.3382e-8102.254
RRL GUHHZ1.1073e-61.7790e-77.1833e-82.6439e-81.2300e-81.6927e-62.7830e-71.6091e-82.3761e-9110.9190
RRL GUHHN6.9253e-71.0630e-79.3981e-85.0381e-82.5615e-81.9918e-65.0581e-73.4398e-82.9179e-9110.9190
RRL GUHHE4.5017e-79.2262e-89.0594e-84.8217e-82.4494e-81.6939e-63.6768e-73.5432e-83.6287e-9110.9190
BHB GUHHZ1.3289e-63.4370e-72.1310e-71.0430e-73.5165e-84.0878e-66.5494e-74.9275e-88.4223e-9119.9171
BHB GUHHN1.4093e-63.4136e-72.4460e-76.3079e-83.0287e-83.7562e-61.3391e-64.8876e-88.6288e-9119.9171
BHB GUHHE1.3351e-62.9003e-71.9305e-76.4882e-82.9269e-83.9561e-66.0104e-74.5675e-87.2841e-9119.9171
*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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