MANUAL Location - Area: Alpi Graie , magnitude (ML): 0.4
2025-11-24 04:57:59 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-11-24 08:13:29

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Earthquake info - Manual location
Event - ID :251124045733
Magnitude (ML) :0.4 +/- 0.2
Origin Time :2025-11-24 04:57:59.828 (UTC)
Location : Latitude: 45.448 N, Longitude: 6.963 E
Area :Alpi Graie
Depth (km) :5.23
Distances (km) : 18.2 --- Rhemes-Notre-Dame
21.2 --- Ceresole Reale
21.9 --- Valgrisenche
25.1 --- Valsavarenche
25.5 --- Balme
26.1 --- Groscavallo
27.0 --- Moncenisio
27.3 --- Noasca
27.6 --- Rhemes-Saint-Georges
28.9 --- Novalesa
30.1 --- La Thuile
30.4 --- Ala di Stura
31.0 --- Chialamberto
31.1 --- Usseglio
32.2 --- Introd
32.2 --- Avise
32.3 --- Venaus
32.6 --- Arvier
33.7 --- Mompantero
33.9 --- Saint-Nicolas

Quality location estimate: Erh: 1.2 km, Erz: 2 km, Nf: 18, Gap: 95 °, Rms: 0.23


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.
LSDGU2025-11-24 04:58:03.0900.00700.011.752025-11-24 04:58:04.8900.0380-0.371.1315.4
OGMOFR2025-11-24 04:58:06.4540.02000.001.682025-11-24 04:58:10.5670.0400-0.321.1034.9
MRGEIV2025-11-24 04:58:07.1700.01800.001.652025-11-24 04:58:11.3200.1855-0.710.4237.2
RSLFR2025-11-24 04:58:08.9990.02001.980.002025-11-24 04:58:11.7430.0400-0.031.4237.8
RSPGU2025-11-24 04:58:07.5800.0200-0.041.572025-11-24 04:58:12.6800.2557-0.201.1141.3
LATOIV2025-11-24 04:58:07.6930.0200-0.351.122025-11-24 04:58:13.0610.0400-0.440.8942.6
CIROGU2025-11-24 04:58:09.1710.0200-0.780.182025-11-24 04:58:15.1240.0400-1.470.0050.7
RRLGU2025-11-24 04:58:10.7050.0200-0.351.082025-11-24 04:58:18.7310.0400-0.021.2260.6
BHBGU2025-11-24 04:58:12.7400.03610.061.222025-11-24 04:58:21.9000.23860.360.4572.3


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
LSD GUHH0.095.19e-215.484
MRGE IVHH0.191.09e-237.212
RSP GUHH0.331.52e-241.3145
CIRO GUHH0.213.87e-350.770
RRL GUHH0.731.12e-260.6193
BHB GUHH0.566.92e-372.3161


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.
(°)
LSD GUHHZ1.4821e-51.5796e-62.3724e-71.2058e-75.3861e-85.6922e-69.7330e-77.6608e-88.6981e-915.484
LSD GUHHN5.1410e-69.9613e-73.9357e-71.3149e-77.9504e-89.2253e-61.9394e-61.2319e-71.8415e-815.484
LSD GUHHE7.1918e-68.6292e-73.6858e-71.2923e-75.2440e-85.8623e-62.0303e-68.0307e-81.2669e-815.484
MRGE IVHHZ2.1108e-62.2754e-77.0673e-83.0187e-81.5065e-81.3500e-62.9919e-72.2594e-84.3093e-937.212
MRGE IVHHN2.8437e-62.7305e-78.2852e-83.0929e-82.0779e-83.4957e-63.0381e-72.7806e-86.1434e-937.212
MRGE IVHHE2.6115e-62.1525e-77.4797e-83.4776e-82.7707e-82.7600e-62.9510e-73.8747e-84.6156e-937.212
RSP GUHHZ8.3617e-71.1433e-76.8445e-84.8510e-82.4612e-82.2055e-62.3837e-72.6305e-82.9343e-941.3145
RSP GUHHN1.0353e-62.0685e-71.2991e-75.0623e-84.8047e-82.2624e-64.8629e-79.8721e-81.0450e-841.3145
RSP GUHHE1.0124e-61.6372e-71.3166e-74.9079e-82.6954e-83.4150e-66.5948e-73.2651e-83.9532e-941.3145
CIRO GUHHZ4.5713e-75.6493e-83.2871e-81.7278e-81.0548e-81.3117e-61.3949e-71.5337e-81.2998e-950.770
CIRO GUHHN4.5018e-75.7389e-83.3218e-81.5119e-87.3584e-91.1165e-61.6720e-78.9109e-91.7641e-950.770
CIRO GUHHE4.5351e-76.2117e-83.3585e-81.4473e-87.6304e-91.6369e-61.3716e-71.1243e-81.7746e-950.770
RRL GUHHZ2.2010e-74.7038e-84.0441e-83.0392e-81.6592e-85.3275e-72.0558e-71.8057e-82.0390e-960.6193
RRL GUHHN2.8277e-77.2550e-87.1097e-84.5674e-81.8717e-81.1142e-63.5180e-72.2560e-83.1046e-960.6193
RRL GUHHE2.5171e-78.6039e-86.7944e-85.9640e-82.7138e-88.1240e-73.8061e-72.7565e-82.2714e-960.6193
BHB GUHHZ3.1310e-75.9872e-84.3899e-82.4104e-82.0393e-81.4087e-62.0572e-74.2678e-82.1911e-972.3161
BHB GUHHN6.8680e-71.1831e-77.4900e-82.8262e-81.5452e-82.4777e-63.2296e-72.3496e-82.6939e-972.3161
BHB GUHHE4.9106e-77.9538e-84.8625e-82.1527e-81.3172e-81.4600e-61.8587e-71.9466e-82.1118e-972.3161
*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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