MANUAL Location - Area: Alpi Pennine , magnitude (ML): 1.3
2025-10-18 12:27:32 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-10-18 14:11:38

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Earthquake info - Manual location
Event - ID :251018122531
Magnitude (ML) :1.3 +/- 0.2
Origin Time :2025-10-18 12:27:32.753 (UTC)
Location : Latitude: 45.904 N, Longitude: 7.022 E
Area :Alpi Pennine
Depth (km) :6.01
Distances (km) : 12.8 --- Courmayeur
15.1 --- Saint-Rhemy-En-Bosses
15.7 --- Pre -Saint-Didier
16.2 --- Morgex
17.0 --- Saint-Oyen
17.8 --- La Salle
18.4 --- Etroubles
21.4 --- La Thuile
22.0 --- Allein
23.0 --- Ollomont
23.4 --- Avise
23.5 --- Saint-Nicolas
23.9 --- Doues
24.8 --- Arvier
25.0 --- Valpelline
25.1 --- Gignod
26.0 --- Roisan
26.5 --- Villeneuve
26.8 --- Saint-Pierre
26.8 --- Introd

Quality location estimate: Erh: 0.8 km, Erz: 0.7 km, Nf: 32, Gap: 108 °, Rms: 0.30


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 12:27:35.7870.00500.001.722025-10-18 12:27:37.3370.0390-0.460.9913.3
REMYGU2025-10-18 12:27:36.4250.00700.181.122025-10-18 12:27:38.5050.0400-0.091.4015.3
MRGEIV2025-10-18 12:27:36.4500.00800.021.662025-10-18 12:27:38.4100.0481-0.490.9817.0
DIXCH2025-10-18 12:27:40.1990.0200-0.011.662025-10-18 12:27:44.6770.1083-0.660.7536.4
RSLFR2025-10-18 12:27:40.1800.0291-0.151.082025-10-18 12:27:44.6800.1223-0.820.5539.4
LSDGU2025-10-18 12:27:42.0400.06430.051.542025-10-18 12:27:47.6900.1484-0.640.7850.8
CIROGU2025-10-18 12:27:42.7350.0200-0.390.892025-10-18 12:27:48.9410.1584-1.460.1754.7
SENINCH2025-10-18 12:27:43.3100.0301-0.191.052025-10-18 12:27:50.3100.1695-0.690.7256.0
VANNICH2025-10-18 12:27:43.4950.03110.241.002025-10-18 12:27:49.9210.1705-0.580.8456.4
SATIGU2025-10-18 12:27:45.0640.02000.250.922025-10-18 12:27:52.2370.2837-1.390.2366.2
EMBDCH2025-10-18 12:27:45.7720.0200-0.051.452025-10-18 12:27:53.9930.2136-0.880.5571.9
MMKCH2025-10-18 12:27:46.3020.02000.211.102025-10-18 12:27:55.3990.0400-0.061.2875.1
LATOIV2025-10-18 12:27:46.0350.0200-0.091.382025-10-18 12:27:54.2870.0400-0.860.5475.5
RSPGU2025-10-18 12:27:48.0480.02000.231.012025-10-18 12:27:57.5070.1002-0.630.7986.4


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
BLANCGUHH1.361.27e+013.3226
REMY GUHH1.217.00e-115.3125
MRGE IVHH1.377.13e-117.0169
DIX CHHH1.714.36e-136.456
LSD GUHH1.298.57e-250.8170
CIRO GUHH1.547.12e-254.7128
SENINCHHH1.337.67e-256.023
VANNICHHH1.003.55e-256.452
SATI GUHH1.242.57e-266.292
EMBD CHHH1.032.29e-271.961
MMK CHHH1.121.37e-275.177
RSP GUHH1.363.48e-286.4167


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.
(°)
BLANCGUHHZ6.7090e-51.1806e-55.8314e-61.9665e-69.4559e-72.0426e-42.1792e-51.5611e-63.0389e-713.3226
BLANCGUHHN9.4346e-51.7643e-58.8397e-63.0947e-61.8099e-62.2596e-44.3348e-52.9162e-65.1096e-713.3226
BLANCGUHHE1.1555e-42.0377e-59.4504e-63.9545e-62.1368e-64.0649e-42.7590e-53.5167e-65.6030e-713.3226
REMY GUHHZ2.2621e-54.9295e-62.7441e-69.9777e-75.9795e-75.2411e-51.1670e-57.4866e-71.2086e-715.3125
REMY GUHHN3.3394e-57.0808e-63.7613e-62.1060e-61.0617e-68.7913e-52.1063e-51.5451e-61.7128e-715.3125
REMY GUHHE4.7996e-57.4949e-64.9026e-61.6071e-61.0054e-61.1289e-42.2279e-51.5859e-62.4645e-715.3125
MRGE IVHHZ6.2216e-57.6278e-62.6114e-68.4427e-74.4488e-75.6419e-51.3353e-56.8289e-71.2089e-717.0169
MRGE IVHHN1.4157e-41.5110e-54.5295e-61.6733e-68.7419e-72.5642e-41.4785e-51.4312e-63.1404e-717.0169
MRGE IVHHE1.2741e-41.1924e-54.5057e-61.6792e-69.6306e-71.1900e-41.9603e-51.5495e-62.6319e-717.0169
DIX CHHHZ3.3688e-54.1015e-63.2807e-61.2120e-65.1148e-77.1745e-51.3431e-57.4389e-71.1729e-736.456
DIX CHHHN4.9587e-57.0461e-64.0139e-61.1084e-65.2533e-71.3647e-41.7514e-57.8588e-71.4384e-736.456
DIX CHHHE5.4655e-57.8072e-63.8352e-61.4838e-66.6798e-71.5512e-41.6816e-59.7455e-71.7841e-736.456
LSD GUHHZ4.9851e-66.2505e-73.1112e-71.5017e-75.8869e-81.1611e-51.1142e-68.2910e-81.3048e-850.8170
LSD GUHHN6.3985e-67.4557e-72.8065e-78.7429e-84.3275e-81.3314e-51.1262e-68.0520e-81.7071e-850.8170
LSD GUHHE9.5961e-61.1597e-67.1735e-72.3909e-71.0904e-71.6441e-53.5708e-61.6188e-72.6672e-850.8170
CIRO GUHHZ6.5652e-69.3915e-73.6875e-71.3707e-75.7834e-81.2982e-51.8041e-68.0738e-81.6771e-854.7128
CIRO GUHHN7.1255e-68.7729e-75.5377e-72.1381e-78.9094e-81.1054e-52.2339e-61.3941e-72.4009e-854.7128
CIRO GUHHE5.7371e-67.1196e-72.7917e-71.1796e-75.9518e-81.3596e-51.6564e-69.5962e-81.6715e-854.7128
SENINCHHHZ9.4357e-61.9140e-61.3138e-64.2185e-72.3055e-73.1663e-55.6614e-63.4807e-75.6457e-856.023
SENINCHHHN8.1793e-61.0143e-66.1428e-71.6912e-77.6815e-82.5399e-53.2621e-61.0678e-72.0488e-856.023
SENINCHHHE1.0667e-51.1949e-66.1456e-72.0065e-71.0734e-71.6789e-52.4415e-61.6249e-72.7351e-856.023
VANNICHHHZ1.7470e-63.3263e-72.5854e-71.3106e-76.1733e-84.7907e-61.5364e-67.7867e-88.9014e-956.452
VANNICHHHN2.3959e-64.0780e-73.5861e-71.9536e-76.0422e-86.9238e-61.4597e-67.4946e-81.2146e-856.452
VANNICHHHE1.8654e-63.1263e-72.6482e-71.8806e-76.4499e-86.4542e-61.5344e-67.5000e-89.5656e-956.452
SATI GUHHZ2.1376e-62.5783e-71.0967e-73.1060e-81.4829e-87.1548e-64.2226e-72.5650e-85.7956e-966.292
SATI GUHHN5.0191e-65.8314e-71.6523e-74.8277e-82.5216e-81.1745e-54.7013e-75.2679e-81.2737e-866.292
SATI GUHHE3.9931e-65.6930e-71.9779e-75.1067e-83.1464e-81.5150e-55.4610e-75.5018e-81.2147e-866.292
EMBD CHHHZ1.5400e-64.6056e-72.6752e-71.8637e-78.4357e-83.5803e-61.2955e-61.0702e-71.4352e-871.961
EMBD CHHHN1.3479e-62.6286e-72.0261e-79.1645e-83.9558e-85.6920e-61.0465e-65.7550e-87.5650e-971.961
EMBD CHHHE1.4315e-62.8247e-72.1346e-78.7445e-83.6091e-82.7932e-61.1845e-64.7588e-87.2166e-971.961
MMK CHHHZ1.6219e-62.6809e-71.6697e-74.3282e-82.0733e-85.9757e-67.9468e-72.8758e-86.1672e-975.177
MMK CHHHN1.7833e-62.3760e-71.5928e-75.8471e-82.7994e-86.3964e-65.5469e-73.9531e-86.5337e-975.177
MMK CHHHE1.7081e-61.8484e-79.8342e-83.0611e-81.4507e-84.6913e-64.1134e-72.3538e-83.8162e-975.177
RSP GUHHZ1.4812e-63.3058e-71.9808e-74.7678e-82.4213e-83.6836e-69.7781e-74.1466e-86.5959e-986.4167
RSP GUHHN2.0472e-63.5652e-72.5425e-76.0044e-83.1673e-87.5184e-61.3241e-64.7542e-87.8320e-986.4167
RSP GUHHE2.2272e-64.7463e-73.3344e-78.1244e-85.5129e-87.0890e-61.7746e-69.1278e-81.2658e-886.4167
*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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