MANUAL Location - Area: Alpi Pennine , magnitude (ML): 0.3
2025-04-02 08:51:51 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-04-02 10:04:42

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Earthquake info - Manual location
Event - ID :250402085128
Magnitude (ML) :0.3 +/- 0.2
Origin Time :2025-04-02 08:51:51.721 (UTC)
Location : Latitude: 45.805 N, Longitude: 7.452 E
Area :Alpi Pennine
Depth (km) :6.01
Distances (km) : 7.1 --- Nus
7.5 --- Quart
7.6 --- Oyace
7.8 --- Verrayes
8.1 --- Bionaz
8.2 --- Saint-Marcel
8.4 --- Fenis
9.1 --- Torgnon
9.3 --- Brissogne
9.7 --- Saint-Christophe
9.8 --- Chambave
9.9 --- Saint-Denis
10.1 --- Valpelline
10.9 --- Antey-Saint-Andre
11.0 --- Roisan
11.4 --- Doues
11.5 --- Pollein
12.2 --- Ollomont
12.3 --- Gignod
12.9 --- La Magdeleine

Quality location estimate: Erh: 0.4 km, Erz: 0.4 km, Nf: 20, Gap: 102 °, Rms: 0.29


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.
REMYGU2025-04-02 08:51:56.7400.01300.011.682025-04-02 08:51:59.4260.0742-0.890.5124.7
CIROGU2025-04-02 08:51:57.0600.0190-0.031.712025-04-02 08:52:00.1700.0762-0.640.6525.7
MRGEIV2025-04-02 08:51:57.7400.02000.011.652025-04-02 08:52:01.0730.1474-0.940.4631.5
DIXCH2025-04-02 08:51:57.9300.0170-0.101.302025-04-02 08:52:01.7850.0952-0.730.6632.0
LSDGU2025-04-02 08:52:00.0500.0291-0.111.202025-04-02 08:52:04.9500.1364-0.980.4046.4
MMKCH2025-04-02 08:52:00.5500.02000.031.392025-04-02 08:52:06.4200.1484-0.350.6448.9
EMBDCH2025-04-02 08:52:01.5030.0200-0.101.272025-04-02 08:52:07.8360.0400-0.750.6354.8
SIMPLCH2025-04-02 08:52:03.3820.0200-0.031.342025-04-02 08:52:11.2340.0400-0.470.5765.7
RSPGU2025-04-02 08:52:04.8140.02000.021.212025-04-02 08:52:12.9980.0400-0.690.6174.8


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
REMY GUHH0.222.98e-224.7279
CIRO GUHH0.603.54e-225.7158
MRGE IVHH0.191.50e-231.5263
LSD GUHH0.431.44e-246.4213
MMK CHHH0.355.78e-348.955
EMBD CHHH0.124.97e-354.833
SIMPLCHHH0.173.84e-365.742
RSP GUHH0.152.96e-374.8191


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.
(°)
REMY GUHHZ4.2535e-65.2247e-71.8725e-75.9065e-82.6899e-85.8764e-68.2299e-74.7490e-81.0937e-824.7279
REMY GUHHN7.4683e-68.0646e-72.8695e-78.3746e-83.8905e-81.4522e-58.9418e-76.9067e-81.5893e-824.7279
REMY GUHHE6.6604e-67.0512e-72.2942e-78.8271e-84.7449e-81.0176e-57.3179e-77.7072e-81.6649e-824.7279
CIRO GUHHZ4.4127e-65.6969e-71.8984e-76.4886e-83.2154e-81.1393e-58.5265e-75.1672e-81.1624e-825.7158
CIRO GUHHN1.1230e-51.0913e-62.3783e-71.0772e-75.9820e-81.4414e-51.3236e-61.0393e-72.0988e-825.7158
CIRO GUHHE7.4415e-67.9211e-72.0146e-77.2339e-83.6905e-81.1945e-57.5046e-75.8187e-81.3523e-825.7158
MRGE IVHHZ3.4478e-63.3673e-74.5474e-82.8428e-81.4392e-81.7219e-62.3299e-72.4739e-85.9506e-931.5263
MRGE IVHHN5.2050e-64.4451e-78.1991e-84.3747e-82.7252e-86.4000e-63.2981e-74.4029e-88.8703e-931.5263
MRGE IVHHE4.8602e-64.7922e-79.2169e-85.9923e-82.3811e-84.5920e-64.5527e-73.6506e-88.4494e-931.5263
DIX CHHHZ1.1620e-51.5056e-66.2265e-72.2816e-71.1455e-73.5982e-52.9796e-61.7854e-73.7926e-832.0353
DIX CHHHN1.9860e-51.8894e-65.6220e-71.4877e-77.4093e-81.7668e-52.3578e-61.6363e-74.3087e-832.0353
DIX CHHHE2.2256e-52.8023e-68.5182e-72.1508e-71.3710e-72.9125e-53.3375e-62.4430e-76.1129e-832.0353
LSD GUHHZ2.6654e-63.1393e-71.0665e-73.4258e-81.5809e-85.2241e-64.1781e-72.5688e-86.3414e-946.4213
LSD GUHHN3.2264e-62.5271e-78.1638e-82.7132e-81.2737e-83.4473e-64.5525e-72.4973e-84.6159e-946.4213
LSD GUHHE3.1239e-63.1435e-71.3239e-73.4920e-81.8679e-83.7739e-66.9062e-73.2112e-85.8037e-946.4213
MMK CHHHZ6.3851e-77.3120e-83.8875e-81.5726e-89.1609e-91.5903e-61.5270e-71.4669e-81.9766e-948.955
MMK CHHHN7.2381e-71.0509e-75.1602e-81.6572e-81.1657e-82.6446e-61.7689e-71.7336e-82.5987e-948.955
MMK CHHHE9.9060e-79.2496e-83.1451e-81.4291e-87.2315e-91.4910e-61.2995e-71.0112e-82.0132e-948.955
EMBD CHHHZ4.6088e-77.5661e-84.1640e-81.9035e-89.1440e-91.0784e-63.2036e-71.1510e-81.6303e-954.833
EMBD CHHHN5.8026e-78.0586e-84.6130e-82.2202e-89.3551e-91.8485e-61.7049e-71.0604e-82.0035e-954.833
EMBD CHHHE5.1334e-75.3089e-84.2083e-82.1162e-88.7538e-98.8045e-72.1130e-79.5611e-91.5873e-954.833
SIMPLCHHHZ5.3077e-75.6928e-83.0343e-81.1060e-85.7655e-91.2895e-61.3897e-79.4206e-91.3983e-965.742
SIMPLCHHHN4.1010e-75.2373e-82.6655e-81.2906e-87.2692e-91.0018e-61.2486e-77.5925e-91.2376e-965.742
SIMPLCHHHE4.2906e-75.7828e-82.9098e-81.2711e-86.6260e-91.0539e-61.2482e-78.7270e-91.3818e-965.742
RSP GUHHZ2.0527e-72.5957e-81.4336e-87.5862e-93.8751e-95.1472e-76.5800e-85.5821e-95.7259e-1074.8191
RSP GUHHN2.5534e-73.9518e-82.4357e-81.0440e-86.2477e-94.7690e-71.3481e-79.3228e-99.3167e-1074.8191
RSP GUHHE2.6551e-73.7343e-82.7620e-89.9470e-95.7060e-95.9005e-72.2072e-79.4625e-91.0420e-974.8191
*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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