MANUAL Location - Area: Alpi Pennine , magnitude (ML): 0.6
2025-04-01 14:25:52 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-04-02 07:08:28

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Earthquake info - Manual location
Event - ID :250401142420
Magnitude (ML) :0.6 +/- 0.1
Origin Time :2025-04-01 14:25:52.077 (UTC)
Location : Latitude: 45.805 N, Longitude: 7.436 E
Area :Alpi Pennine
Depth (km) :6.01
Distances (km) : 6.8 --- Oyace
7.2 --- Quart
7.4 --- Nus
7.9 --- Bionaz
8.2 --- Saint-Marcel
8.8 --- Verrayes
8.8 --- Saint-Christophe
8.9 --- Brissogne
8.9 --- Valpelline
9.0 --- Fenis
9.8 --- Roisan
10.2 --- Doues
10.4 --- Torgnon
10.7 --- Pollein
10.8 --- Chambave
10.9 --- Saint-Denis
11.1 --- Ollomont
11.1 --- Gignod
12.0 --- Aosta
12.1 --- Antey-Saint-Andre

Quality location estimate: Erh: 0.9 km, Erz: 0.8 km, Nf: 24, Gap: 99 °, 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.
REMYGU2025-04-01 14:25:57.0300.01200.130.992025-04-01 14:25:59.5950.0701-0.750.6923.5
CIROGU2025-04-01 14:25:57.5400.01800.011.822025-04-01 14:26:00.6260.1715-0.690.7726.2
MRGEIV2025-04-01 14:25:57.9160.02000.011.802025-04-01 14:26:01.2900.0912-0.750.6930.3
DIXCH2025-04-01 14:25:58.3300.0180-0.031.712025-04-01 14:26:02.1920.0962-0.630.8631.9
LSDGU2025-04-01 14:26:00.4300.02310.011.682025-04-01 14:26:05.7500.1374-0.370.9145.7
VANNICH2025-04-01 14:26:00.9480.02000.350.472025-04-01 14:26:06.4700.0400-0.161.0847.3
MMKCH2025-04-01 14:26:01.3280.02000.300.582025-04-01 14:26:06.9810.1002-0.430.8849.9
EMBDCH2025-04-01 14:26:02.1020.12050.051.362025-04-01 14:26:08.5550.4419-0.560.7755.5
SENINCH2025-04-01 14:26:04.0540.08030.500.252025-04-01 14:26:11.2490.1002-0.460.9063.5
RSLFR2025-04-01 14:26:05.4990.02001.810.002025-04-01 14:26:11.4760.0400-0.280.9864.5
RSPGU2025-04-01 14:26:05.2500.03810.141.212025-04-01 14:26:13.5200.2246-0.460.9174.5


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
REMY GUHH0.577.32e-223.5280
CIRO GUHH0.754.84e-226.2156
MRGE IVHH0.684.93e-230.3263
LSD GUHH0.562.00e-245.7212
VANNICHHH0.581.92e-247.315
MMK CHHH0.558.81e-349.956
EMBD CHHH0.461.05e-255.534
SENINCHHH0.751.58e-263.5350
RSP GUHH0.537.19e-374.5190


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 GUHHZ2.3101e-51.9988e-63.8811e-71.1494e-76.7592e-81.4836e-51.2666e-61.0829e-73.3039e-823.5280
REMY GUHHN1.1816e-51.4672e-66.1927e-71.5676e-78.0419e-83.0527e-51.6617e-61.3427e-73.0600e-823.5280
REMY GUHHE1.5080e-51.5233e-66.1069e-71.6315e-78.4879e-82.8021e-52.4953e-61.5966e-73.4808e-823.5280
CIRO GUHHZ8.0328e-67.3518e-72.2383e-71.0938e-75.0077e-81.0757e-57.4575e-77.4013e-81.3742e-826.2156
CIRO GUHHN1.1043e-59.6226e-72.7356e-79.9200e-84.6850e-81.0731e-51.3830e-69.6098e-81.8910e-826.2156
CIRO GUHHE1.1718e-51.2590e-63.1803e-71.1840e-77.6134e-81.1957e-51.6817e-61.3612e-72.5962e-826.2156
MRGE IVHHZ5.8432e-64.4252e-71.1581e-74.9914e-82.1803e-84.2039e-66.1955e-73.5428e-89.1620e-930.3263
MRGE IVHHN1.5798e-51.5407e-63.1318e-77.7917e-85.1857e-82.6825e-59.7600e-71.0145e-73.0253e-830.3263
MRGE IVHHE1.2177e-51.2587e-62.2090e-77.7076e-84.7657e-81.6404e-56.7904e-79.7516e-82.2788e-830.3263
DIX CHHHZ2.9843e-53.7045e-61.8427e-65.7425e-73.3321e-73.2754e-51.0715e-55.0066e-78.4036e-831.9355
DIX CHHHN4.3354e-54.2683e-61.4709e-64.3488e-72.3168e-77.4897e-55.1509e-64.5274e-79.6382e-831.9355
DIX CHHHE5.9121e-57.3502e-62.6974e-65.9600e-73.5618e-71.2095e-47.5262e-65.9713e-71.5338e-731.9355
LSD GUHHZ3.1913e-63.8660e-71.1862e-73.0881e-81.8426e-85.8812e-64.3412e-73.1429e-86.8025e-945.7212
LSD GUHHN3.9660e-63.6815e-71.0054e-72.8694e-81.5276e-84.4220e-63.3205e-73.1180e-86.1917e-945.7212
LSD GUHHE5.8763e-65.3008e-71.2589e-73.8263e-82.2006e-86.6255e-65.5062e-74.9223e-81.1097e-845.7212
VANNICHHHZ1.2945e-62.3298e-71.1237e-74.8548e-82.0856e-83.2030e-66.5920e-72.5228e-84.8116e-947.315
VANNICHHHN1.6728e-62.2144e-71.4236e-76.7211e-82.7542e-83.3157e-61.0511e-63.4026e-85.1019e-947.315
VANNICHHHE1.7267e-62.4343e-71.7205e-76.8814e-83.2687e-83.2523e-68.6074e-74.6967e-87.7112e-947.315
MMK CHHHZ1.3991e-61.4985e-76.3734e-82.3011e-81.0492e-82.4700e-62.9988e-71.7867e-83.7325e-949.956
MMK CHHHN1.8657e-61.9873e-78.4105e-82.5433e-81.5923e-83.8950e-63.4671e-72.4585e-84.5173e-949.956
MMK CHHHE1.5946e-61.4511e-75.0100e-82.2365e-81.0156e-81.9545e-61.8592e-71.5636e-83.2193e-949.956
EMBD CHHHZ1.4543e-61.8441e-71.2346e-77.5786e-82.8982e-82.1473e-67.4146e-73.5251e-84.6813e-955.534
EMBD CHHHN1.3316e-61.3229e-78.0434e-83.7618e-81.8169e-82.0928e-64.5065e-72.2112e-83.7291e-955.534
EMBD CHHHE1.1162e-61.6580e-77.9085e-84.2813e-82.1632e-82.4956e-64.0571e-73.3157e-84.1664e-955.534
SENINCHHHZ1.5814e-62.5677e-71.8465e-77.5700e-84.6623e-83.9442e-66.0172e-76.5120e-87.5258e-963.5350
SENINCHHHN2.0442e-62.7739e-71.4266e-77.5417e-84.0617e-83.7947e-66.2812e-74.3316e-86.3010e-963.5350
SENINCHHHE1.9867e-62.6421e-71.4517e-76.4725e-83.3312e-83.6286e-65.8022e-75.5962e-86.9415e-963.5350
RSP GUHHZ5.6019e-78.2848e-83.2355e-81.3969e-86.4565e-91.2635e-61.1502e-71.0083e-81.5575e-974.5190
RSP GUHHN6.3695e-71.1167e-76.0874e-81.9639e-88.7694e-91.4689e-63.0675e-71.3381e-82.5279e-974.5190
RSP GUHHE6.6698e-71.0861e-75.6380e-81.6283e-88.4400e-91.7010e-62.2767e-71.3210e-82.3324e-974.5190
*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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