MANUAL Location - Area: Alpi Pennine , magnitude (ML): 0.6
2025-09-03 17:22:23 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-09-04 09:10:28

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Earthquake info - Manual location
Event - ID :250903172147
Magnitude (ML) :0.6 +/- 0.2
Origin Time :2025-09-03 17:22:23.573 (UTC)
Location : Latitude: 45.942 N, Longitude: 7.450 E
Area :Alpi Pennine
Depth (km) :5.87
Distances (km) : 7.7 --- Bionaz
11.2 --- Oyace
14.8 --- Ollomont
15.2 --- Valtournenche
16.1 --- Valpelline
17.4 --- Chamois
17.5 --- Doues
18.0 --- Torgnon
18.7 --- Antey-Saint-Andre
19.5 --- La Magdeleine
20.3 --- Roisan
20.4 --- Allein
20.9 --- Verrayes
21.3 --- Gignod
21.8 --- Etroubles
22.3 --- Nus
22.4 --- Quart
22.5 --- Saint-Denis
22.5 --- Saint-Oyen
22.8 --- Saint-Christophe

Quality location estimate: Erh: 0.6 km, Erz: 1.2 km, Nf: 24, Gap: 92 °, Rms: 0.22


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.
DIXCH2025-09-03 17:22:26.9250.0070-0.650.522025-09-03 17:22:28.6850.1594-1.600.0417.8
REMYGU2025-09-03 17:22:28.9600.0140-0.042.002025-09-03 17:22:31.5400.4148-1.280.1326.8
VANNICH2025-09-03 17:22:29.9080.02000.061.722025-09-03 17:22:34.0410.0400-0.091.5332.7
SATIGU2025-09-03 17:22:30.3900.0170-0.041.952025-09-03 17:22:34.9500.1043-0.360.6634.4
MRGEIV2025-09-03 17:22:30.5700.01900.041.832025-09-03 17:22:35.0000.1564-0.480.6136.5
CIROGU2025-09-03 17:22:31.2010.02000.051.722025-09-03 17:22:36.4400.2005-0.161.1139.8
MMKCH2025-09-03 17:22:31.8460.02000.440.312025-09-03 17:22:36.7820.0400-0.051.5342.4
EMBDCH2025-09-03 17:22:31.6210.02000.021.882025-09-03 17:22:36.8640.0400-0.250.8743.0
LSDGU2025-09-03 17:22:34.5200.02000.380.342025-09-03 17:22:42.0290.04000.470.3759.5
CANIGU2025-09-03 17:22:34.7000.02000.750.072025-09-03 17:22:42.7440.04001.520.0059.7


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
DIX CHHH0.882.45e-117.8347
REMY GUHH0.535.19e-226.8243
VANNICHHH0.402.68e-232.721
SATI GUHH0.965.10e-234.4103
MRGE IVHH0.512.36e-236.5238
CIRO GUHH0.691.88e-239.8166
MMK CHHH0.459.64e-342.473
EMBD CHHH0.128.15e-343.044
LSD GUHH0.458.95e-359.5205
CANI GUHH0.551.13e-259.7162


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.
(°)
DIX CHHHZ2.2122e-54.5667e-62.9216e-61.0155e-64.2219e-75.1718e-52.8110e-56.0359e-71.0225e-717.8347
DIX CHHHN3.7519e-53.8689e-62.3397e-61.0762e-64.1359e-74.9730e-51.2173e-55.2851e-77.4352e-817.8347
DIX CHHHE4.8098e-54.7438e-62.2516e-68.9453e-74.6425e-75.0404e-51.3630e-56.2749e-71.1216e-717.8347
REMY GUHHZ6.6777e-66.0758e-73.2374e-71.9695e-76.6603e-85.9665e-62.3405e-68.8682e-81.0828e-826.8243
REMY GUHHN4.0459e-66.4814e-74.4555e-72.6185e-71.1585e-78.6066e-63.3861e-61.4643e-72.1197e-826.8243
REMY GUHHE6.0058e-66.4064e-73.6739e-72.2951e-71.1952e-71.1025e-51.4411e-61.3590e-71.5230e-826.8243
VANNICHHHZ1.2213e-61.8522e-71.8397e-71.0151e-73.3005e-83.0053e-68.7458e-74.3835e-86.0328e-932.721
VANNICHHHN1.4289e-63.5272e-72.7230e-71.1703e-74.4213e-82.1009e-61.0019e-65.9653e-87.9926e-932.721
VANNICHHHE1.0758e-62.2406e-72.6325e-71.5744e-75.1322e-82.0082e-61.6899e-66.9395e-87.1196e-932.721
SATI GUHHZ2.1039e-63.2555e-72.2123e-71.6975e-75.3498e-85.7637e-61.0832e-67.3008e-89.4658e-934.4103
SATI GUHHN2.4710e-65.6400e-74.1296e-71.9960e-78.4433e-86.8380e-62.8690e-61.1404e-71.4150e-834.4103
SATI GUHHE2.6144e-64.7972e-72.9715e-72.0070e-76.4430e-89.3541e-61.0948e-68.4326e-81.2446e-834.4103
MRGE IVHHZ2.1682e-62.1922e-71.1903e-78.3012e-82.7356e-81.9845e-67.1046e-73.8290e-85.5755e-936.5238
MRGE IVHHN3.3643e-63.9474e-71.7775e-71.0825e-73.8398e-86.3510e-61.2900e-65.2698e-89.3676e-936.5238
MRGE IVHHE2.5463e-62.3162e-71.3236e-77.9259e-82.8187e-82.8662e-67.4152e-73.6543e-85.2077e-936.5238
CIRO GUHHZ8.4788e-71.8902e-71.1961e-75.6345e-82.4946e-82.0416e-68.1308e-72.8523e-84.1712e-939.8166
CIRO GUHHN1.1192e-61.5129e-79.8227e-84.1161e-81.6523e-82.6870e-65.6877e-72.0694e-83.5524e-939.8166
CIRO GUHHE1.3631e-62.0888e-71.5169e-78.0366e-83.3795e-82.9076e-68.3434e-74.5734e-85.7624e-939.8166
MMK CHHHZ7.9378e-71.4209e-71.0393e-75.6124e-81.9220e-82.5705e-65.1553e-72.6802e-84.1513e-942.473
MMK CHHHN6.5958e-71.2995e-79.3875e-84.3564e-81.5662e-82.3397e-65.2101e-72.1737e-83.2712e-942.473
MMK CHHHE5.2603e-77.8689e-86.3242e-82.9564e-81.1082e-81.3650e-62.9988e-71.3761e-82.2792e-942.473
EMBD CHHHZ4.3774e-71.3045e-71.1000e-76.4835e-81.9781e-81.1783e-64.2558e-72.4017e-83.4295e-943.044
EMBD CHHHN4.1271e-71.0018e-77.2932e-83.8672e-81.5858e-81.2475e-63.8178e-71.9046e-82.4959e-943.044
EMBD CHHHE5.1818e-79.2021e-87.5229e-84.8291e-82.1178e-81.2528e-63.0608e-72.2951e-82.6698e-943.044
LSD GUHHZ6.9307e-71.2464e-78.2196e-84.1368e-81.7419e-81.4215e-63.4909e-72.4549e-83.2509e-959.5205
LSD GUHHN7.2759e-71.1402e-76.3726e-83.1677e-81.3204e-81.4034e-63.6246e-71.8752e-82.7601e-959.5205
LSD GUHHE1.0188e-61.4577e-78.6581e-84.3405e-81.5068e-82.2671e-64.2167e-71.9760e-83.2896e-959.5205
CANI GUHHZ1.3301e-61.5339e-76.3838e-82.9967e-81.2995e-82.3605e-62.8311e-71.6992e-83.8765e-959.7162
CANI GUHHN1.0261e-61.7912e-77.7957e-84.0831e-81.7532e-82.2535e-63.1171e-72.5765e-84.5508e-959.7162
CANI GUHHE1.5798e-61.7665e-71.1744e-74.2938e-81.7442e-84.3637e-64.5945e-72.4607e-84.1662e-959.7162
*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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