MANUAL Location - Area: Alpi Pennine , magnitude (ML): 0.5
2025-02-04 04:52:30 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-02-04 09:17:45

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Earthquake info - Manual location
Event - ID :250204045112
Magnitude (ML) :0.5 +/- 0.2
Origin Time :2025-02-04 04:52:30.083 (UTC)
Location : Latitude: 45.800 N, Longitude: 7.451 E
Area :Alpi Pennine
Depth (km) :5.98
Distances (km) : 6.5 --- Nus
6.9 --- Quart
7.5 --- Verrayes
7.6 --- Saint-Marcel
7.9 --- Oyace
7.9 --- Fenis
8.7 --- Bionaz
8.7 --- Brissogne
9.2 --- Torgnon
9.3 --- Saint-Christophe
9.5 --- Chambave
9.6 --- Saint-Denis
10.2 --- Valpelline
10.8 --- Roisan
11.0 --- Antey-Saint-Andre
11.0 --- Pollein
11.4 --- Doues
12.1 --- Gignod
12.4 --- Ollomont
12.6 --- Aosta

Quality location estimate: Erh: 0.7 km, Erz: 1 km, Nf: 32, Gap: 82 °, 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.
REMYGU2025-02-04 04:52:35.0840.0200-0.021.802025-02-04 04:52:37.7000.0400-1.000.4124.7
CIROGU2025-02-04 04:52:35.3720.0200-0.011.802025-02-04 04:52:38.3030.0400-0.740.4625.2
MRGEIV2025-02-04 04:52:36.0710.02000.001.772025-02-04 04:52:39.3340.0400-0.990.4231.3
DIXCH2025-02-04 04:52:36.3310.0200-0.151.082025-02-04 04:52:40.1160.0400-0.920.4732.5
SATIGU2025-02-04 04:52:36.8280.0200-0.141.132025-02-04 04:52:41.5760.0400-0.390.6234.6
LSDGU2025-02-04 04:52:38.3920.0200-0.051.612025-02-04 04:52:43.1590.0400-0.990.4145.8
MMKCH2025-02-04 04:52:39.2810.02000.330.442025-02-04 04:52:44.8450.0400-0.410.6649.3
EMBDCH2025-02-04 04:52:40.1490.02000.101.372025-02-04 04:52:46.4400.0400-0.660.5655.4
LATOIV2025-02-04 04:52:40.2990.02000.240.792025-02-04 04:52:46.7470.04000.031.3455.8
SENINCH2025-02-04 04:52:41.9400.02000.260.752025-02-04 04:52:49.7640.0400-0.161.1264.2
RSLFR2025-02-04 04:52:41.9450.02000.101.342025-02-04 04:52:49.5190.0400-0.490.6665.5
SIMPLCH2025-02-04 04:52:41.8990.02000.041.492025-02-04 04:52:49.8940.0400-0.320.8666.2
LAUCHCH2025-02-04 04:52:43.1270.02000.061.422025-02-04 04:52:51.5820.0400-0.660.5873.2
RSPGU2025-02-04 04:52:43.0250.0200-0.041.462025-02-04 04:52:51.3600.0400-0.530.6474.2
FIESACH2025-02-04 04:52:45.5600.02000.161.112025-02-04 04:52:56.2640.04000.031.1087.4


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
REMY GUHH0.637.73e-224.7281
CIRO GUHH0.664.23e-225.2157
MRGE IVHH0.322.05e-231.3264
SATI GUHH0.441.51e-234.675
LSD GUHH0.642.41e-245.8213
MMK CHHH0.538.65e-349.355
EMBD CHHH0.155.30e-355.432
SENINCHHH0.549.40e-364.2349
SIMPLCHHH0.284.83e-366.242
LAUCHCHHH0.506.49e-373.220
RSP GUHH0.132.89e-374.2191
FIESACHHH0.757.75e-387.435


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 GUHHZ6.2725e-67.5925e-73.8891e-71.0849e-75.3106e-81.2651e-51.6988e-68.8101e-81.6394e-824.7281
REMY GUHHN1.0057e-51.5723e-66.2076e-72.2869e-71.0896e-72.6626e-51.5089e-61.8691e-73.8151e-824.7281
REMY GUHHE1.0453e-51.2942e-64.9236e-71.6982e-78.5072e-82.6075e-51.5734e-61.3807e-72.4750e-824.7281
CIRO GUHHZ8.5376e-69.5281e-72.9453e-79.3902e-85.0816e-81.5502e-51.2685e-69.0149e-82.0043e-825.2157
CIRO GUHHN1.2944e-51.0465e-62.8567e-71.0975e-75.8872e-81.5981e-51.6458e-61.0790e-72.2682e-825.2157
CIRO GUHHE1.3758e-51.2805e-62.5067e-78.4139e-83.8964e-81.5701e-59.5055e-78.7638e-82.3928e-825.2157
MRGE IVHHZ2.5219e-62.4182e-76.5072e-83.6923e-81.4240e-81.9135e-63.1730e-72.1227e-84.5465e-931.3264
MRGE IVHHN4.9815e-65.0067e-71.2853e-74.8077e-82.6948e-81.0316e-55.3483e-74.4465e-89.4118e-931.3264
MRGE IVHHE3.8801e-63.5331e-79.5171e-83.6921e-82.0504e-85.5076e-63.5350e-73.8403e-87.2942e-931.3264
DIX CHHHZ2.5981e-53.6850e-61.3028e-64.8157e-72.4481e-77.6055e-55.9443e-64.3054e-79.2468e-832.5353
DIX CHHHN3.4199e-53.4204e-69.3299e-72.7521e-71.7473e-74.0893e-54.0703e-63.0350e-76.9848e-832.5353
DIX CHHHE4.1873e-54.7959e-61.7108e-65.0857e-73.0822e-76.9129e-56.1046e-65.6498e-71.2358e-732.5353
SATI GUHHZ2.2435e-62.0917e-75.3040e-81.6140e-88.1063e-92.5253e-61.8940e-71.2898e-83.9727e-934.675
SATI GUHHN4.4879e-64.3667e-71.0110e-73.4006e-81.7669e-85.0410e-65.2396e-73.7074e-88.9121e-934.675
SATI GUHHE4.2989e-64.6846e-79.0847e-82.9628e-81.6911e-85.7367e-62.8908e-73.7037e-88.7345e-934.675
LSD GUHHZ2.9622e-64.1852e-71.6741e-75.2225e-82.5964e-88.7294e-66.3898e-73.7362e-88.7627e-945.8213
LSD GUHHN2.6012e-62.6981e-71.2861e-73.8218e-81.6722e-84.5625e-66.8570e-72.8253e-85.4979e-945.8213
LSD GUHHE3.3498e-63.5788e-72.1631e-75.6068e-83.0086e-86.2395e-68.8669e-74.4813e-88.9701e-945.8213
MMK CHHHZ1.3349e-61.7212e-76.3350e-82.3059e-81.0122e-83.6118e-62.4555e-71.8549e-84.2717e-949.355
MMK CHHHN1.5790e-61.7940e-77.2705e-82.0433e-81.1146e-84.0455e-62.1983e-71.9218e-84.1986e-949.355
MMK CHHHE1.4514e-61.3517e-74.3195e-82.0508e-88.7835e-92.0528e-61.3444e-71.3410e-82.9688e-949.355
EMBD CHHHZ8.6191e-79.8199e-86.3736e-81.8602e-88.6114e-91.6172e-63.3311e-71.3398e-82.4518e-955.432
EMBD CHHHN9.8593e-78.9126e-84.6794e-81.5663e-87.9566e-92.6504e-62.7655e-71.4059e-82.5543e-955.432
EMBD CHHHE1.1170e-61.0567e-74.7758e-81.8998e-81.0445e-81.5025e-62.2488e-71.7177e-82.2540e-955.432
SENINCHHHZ5.1092e-71.0741e-79.7435e-84.5267e-82.0517e-81.7515e-64.7221e-72.3771e-84.2363e-964.2349
SENINCHHHN5.2612e-77.5916e-87.5172e-84.3382e-81.6964e-81.6113e-63.5926e-72.5566e-82.9583e-964.2349
SENINCHHHE6.3785e-71.1468e-78.1132e-83.5920e-81.7127e-81.9598e-65.3239e-72.7635e-83.0337e-964.2349
SIMPLCHHHZ7.6736e-79.8640e-84.5448e-81.1404e-86.3591e-91.5311e-62.3530e-71.1304e-82.2348e-966.242
SIMPLCHHHN9.3882e-71.0550e-73.1376e-81.2547e-86.6505e-91.3823e-61.0175e-71.1117e-82.0808e-966.242
SIMPLCHHHE8.4210e-79.2756e-83.9040e-81.3455e-86.9250e-91.4635e-61.9320e-71.2701e-82.2001e-966.242
LAUCHCHHHZ5.5751e-78.2821e-83.2659e-81.0561e-87.9706e-92.0025e-61.2439e-71.0711e-81.7493e-973.220
LAUCHCHHHN6.7440e-79.1052e-84.4581e-81.5944e-89.7330e-92.1151e-61.5814e-71.1742e-82.1566e-973.220
LAUCHCHHHE4.4223e-78.9324e-86.3402e-81.8714e-81.1753e-81.1787e-62.4783e-71.7387e-82.4750e-973.220
RSP GUHHZ2.4270e-73.4865e-82.0540e-89.1800e-94.1601e-97.9682e-79.4703e-87.3379e-98.8029e-1074.2191
RSP GUHHN3.2073e-74.5058e-82.4842e-88.1220e-94.0499e-98.2158e-78.9951e-85.0086e-99.7787e-1074.2191
RSP GUHHE3.2750e-74.9413e-82.6617e-89.0338e-94.1369e-98.0435e-71.0346e-76.2256e-91.0918e-974.2191
FIESACHHHZ3.9263e-75.1677e-84.2772e-83.5715e-82.7438e-89.1623e-72.4352e-74.1818e-82.7907e-987.435
FIESACHHHN4.3616e-77.4346e-86.2997e-83.1905e-82.5847e-81.0468e-62.8196e-74.6507e-83.4631e-987.435
FIESACHHHE4.1621e-77.2039e-84.5620e-83.2748e-82.1413e-81.0180e-62.7634e-72.6999e-83.7454e-987.435
*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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