MANUAL Location - Area: Alpi Graie , magnitude (ML): 1.0
2025-05-05 09:52:33 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-05-06 06:39:11

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Earthquake info - Manual location
Event - ID :250505095122
Magnitude (ML) :1.0 +/- 0.2
Origin Time :2025-05-05 09:52:33.837 (UTC)
Location : Latitude: 45.822 N, Longitude: 7.144 E
Area :Alpi Graie
Depth (km) :6.20
Distances (km) : 2.7 --- Saint-Rhemy-En-Bosses
5.2 --- Saint-Oyen
6.5 --- Etroubles
9.9 --- Allein
10.1 --- La Salle
10.9 --- Morgex
11.7 --- Saint-Nicolas
12.5 --- Avise
12.5 --- Gignod
12.6 --- Doues
13.2 --- Ollomont
13.2 --- Arvier
13.6 --- Courmayeur
13.7 --- Roisan
13.8 --- Pre -Saint-Didier
14.0 --- Saint-Pierre
14.0 --- Valpelline
14.1 --- Villeneuve
14.5 --- Sarre
14.9 --- Introd

Quality location estimate: Erh: 1.1 km, Erz: 1.6 km, Nf: 26, Gap: 93 °, Rms: 0.28


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.
MRGEIV2025-05-05 09:52:36.4800.05020.031.902025-05-05 09:52:37.3290.0400-0.840.4011.7
BLANCGU2025-05-05 09:52:38.0010.02000.001.992025-05-05 09:52:40.3950.0400-0.450.4019.1
DIXCH2025-05-05 09:52:41.4650.06020.370.672025-05-05 09:52:46.0590.0400-0.111.4136.1
LSDGU2025-05-05 09:52:41.5430.02000.141.232025-05-05 09:52:45.9040.0400-0.650.4841.2
CIROGU2025-05-05 09:52:42.0250.0200-0.071.712025-05-05 09:52:46.8200.0400-0.990.3241.9
RSLFR2025-05-05 09:52:42.0100.0200-0.091.602025-05-05 09:52:46.7420.0400-1.000.3143.3
SATIGU2025-05-05 09:52:44.3180.0200-0.021.772025-05-05 09:52:51.5800.0400-0.520.5657.1
SENINCH2025-05-05 09:52:46.6850.02001.320.002025-05-05 09:52:53.6590.04000.191.2361.9
MMKCH2025-05-05 09:52:46.6120.02000.620.372025-05-05 09:52:54.6680.0400-0.011.3968.9
EMBDCH2025-05-05 09:52:46.6260.02000.430.662025-05-05 09:52:55.2460.04000.370.8769.2
SIMPLCH2025-05-05 09:52:48.3910.0200-0.081.492025-05-05 09:52:58.8320.04000.011.3082.3
BHBGU2025-05-05 09:52:53.0750.02000.590.482025-05-05 09:53:05.4340.04000.021.18110.3


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
MRGE IVHH1.229.79e-111.7228
BLANCGUHH0.801.83e-119.1279
DIX CHHH1.291.72e-136.135
LSD GUHH0.885.07e-241.2181
CIRO GUHH0.973.30e-241.9126
SATI GUHH0.991.96e-257.184
SENINCHHH0.902.35e-261.911
MMK CHHH0.777.43e-368.968
BHB GUHH1.151.02e-2110.3175


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.
(°)
MRGE IVHHZ2.2951e-42.0818e-53.1470e-61.0188e-66.7585e-71.8649e-41.6628e-51.3293e-64.0506e-711.7228
MRGE IVHHN3.5059e-43.3088e-55.3179e-61.5439e-69.7340e-74.8211e-41.8143e-52.2244e-65.9268e-711.7228
MRGE IVHHE3.4600e-43.3961e-55.6712e-62.0343e-61.3297e-62.8452e-42.0248e-52.8115e-65.9901e-711.7228
BLANCGUHHZ1.6332e-51.7019e-67.5077e-71.8969e-71.1597e-72.0123e-53.3081e-62.0870e-73.9553e-819.1279
BLANCGUHHN3.0930e-53.7599e-61.1310e-64.0303e-72.0875e-72.9730e-55.8934e-63.5121e-77.8254e-819.1279
BLANCGUHHE1.3233e-52.0462e-69.0327e-72.1879e-71.2809e-73.6175e-53.4413e-62.1954e-73.8884e-819.1279
DIX CHHHZ1.2697e-52.2270e-61.0231e-64.4104e-72.3433e-72.2875e-57.2158e-63.7345e-74.8921e-836.135
DIX CHHHN1.9899e-53.0283e-61.5085e-64.5650e-72.2765e-72.6655e-57.5932e-63.4268e-76.2379e-836.135
DIX CHHHE2.1308e-52.1664e-68.3073e-72.4153e-71.0006e-73.1198e-54.9863e-61.9042e-74.5304e-836.135
LSD GUHHZ8.8814e-61.1993e-63.5710e-71.0533e-74.8860e-81.6898e-58.4696e-78.6125e-81.9536e-841.2181
LSD GUHHN1.4758e-51.4972e-63.2915e-71.1522e-76.2649e-82.2447e-51.2735e-61.1992e-72.8010e-841.2181
LSD GUHHE1.6144e-51.2839e-64.4292e-71.1886e-75.6612e-81.9781e-51.8389e-61.0827e-72.5405e-841.2181
CIRO GUHHZ6.0836e-66.4932e-71.3116e-75.0446e-83.2608e-87.5647e-66.0989e-76.6549e-81.4311e-841.9126
CIRO GUHHN7.0794e-66.6216e-72.6147e-71.1220e-75.4930e-86.7166e-61.2373e-68.5353e-81.3525e-841.9126
CIRO GUHHE4.8835e-65.0069e-71.6774e-75.7278e-83.0398e-84.6559e-69.1873e-74.4427e-81.0726e-841.9126
SATI GUHHZ2.1650e-62.2466e-77.2263e-82.3047e-81.0507e-83.1579e-62.7345e-71.7356e-84.2600e-957.184
SATI GUHHN5.0152e-65.2726e-71.3854e-73.7400e-82.2075e-88.8580e-66.1660e-74.2982e-81.0309e-857.184
SATI GUHHE3.8634e-64.4296e-71.2245e-73.7861e-82.3610e-87.0428e-65.5086e-74.5733e-89.2424e-957.184
SENINCHHHZ2.9825e-65.4654e-73.8516e-71.2976e-74.9382e-81.0100e-51.7363e-67.1316e-81.4372e-861.911
SENINCHHHN1.6013e-62.6100e-72.0638e-78.0799e-83.7311e-84.8993e-61.5256e-66.5562e-87.8588e-961.911
SENINCHHHE2.6587e-63.6183e-72.2205e-78.7876e-83.6242e-87.7529e-69.6213e-74.7859e-89.9639e-961.911
MMK CHHHZ1.2884e-61.2795e-76.6168e-82.3298e-89.2748e-91.8101e-63.3895e-71.6164e-83.1832e-968.968
MMK CHHHN1.3332e-61.3304e-76.5579e-81.9380e-81.3333e-82.5895e-63.2451e-71.9742e-83.0804e-968.968
MMK CHHHE1.5402e-61.2249e-74.2761e-81.5685e-87.0498e-91.7203e-61.8998e-71.0073e-82.4337e-968.968
EMBD CHHHZ6.1385e-71.1195e-76.2984e-83.7401e-81.2464e-81.0105e-65.0290e-71.5661e-82.6923e-969.250
EMBD CHHHN5.6207e-76.5056e-84.8710e-82.1507e-87.9958e-91.0455e-63.0199e-71.0932e-81.6840e-969.250
EMBD CHHHE5.1547e-75.6893e-84.0736e-82.3950e-81.0695e-86.5898e-72.6926e-71.3038e-81.6882e-969.250
SIMPLCHHHZ3.6593e-75.9333e-83.0813e-81.2099e-86.0878e-91.1047e-61.5254e-71.0479e-81.5947e-982.355
SIMPLCHHHN4.9221e-76.8020e-83.0426e-81.1956e-85.3607e-91.0874e-61.4014e-76.8515e-91.3600e-982.355
SIMPLCHHHE4.7504e-75.7969e-83.1738e-81.0631e-84.9072e-91.2893e-61.3053e-71.0206e-81.4121e-982.355
BHB GUHHZ4.3913e-78.3322e-87.4716e-83.2434e-81.4603e-81.5478e-63.8933e-72.3488e-82.8626e-9110.3175
BHB GUHHN7.1487e-71.4214e-79.3771e-82.9865e-81.7572e-81.5258e-64.0563e-71.9732e-82.9660e-9110.3175
BHB GUHHE4.6977e-79.4930e-87.3943e-83.3419e-81.4785e-81.2102e-62.8153e-72.2004e-82.5726e-9110.3175
*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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