MANUAL Location - Area: Alpi Pennine , magnitude (ML): 0.5
2025-10-18 10:58:29 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-10-18 14:06:58

RSNI Logo

Earthquake info - Manual location
Event - ID :251018105802
Magnitude (ML) :0.5 +/- 0.2
Origin Time :2025-10-18 10:58:29.108 (UTC)
Location : Latitude: 45.904 N, Longitude: 7.056 E
Area :Alpi Pennine
Depth (km) :9.99
Distances (km) : 13.1 --- Saint-Rhemy-En-Bosses
13.8 --- Courmayeur
14.8 --- Saint-Oyen
16.2 --- Etroubles
16.2 --- Morgex
16.4 --- Pre -Saint-Didier
17.4 --- La Salle
19.7 --- Allein
20.4 --- Ollomont
21.5 --- Doues
22.2 --- La Thuile
22.4 --- Saint-Nicolas
22.5 --- Avise
22.5 --- Valpelline
22.9 --- Gignod
23.7 --- Arvier
23.8 --- Roisan
25.2 --- Villeneuve
25.3 --- Saint-Pierre
25.7 --- Introd

Quality location estimate: Erh: 1.1 km, Erz: 0.9 km, Nf: 24, Gap: 145 °, Rms: 0.44


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.
REMYGU2025-10-18 10:58:32.9300.01200.320.882025-10-18 10:58:35.0000.03700.011.4716.4
BLANCGU2025-10-18 10:58:32.2900.0050-0.571.212025-10-18 10:58:33.8050.0400-1.590.1817.6
MRGEIV2025-10-18 10:58:32.9400.0070-0.011.512025-10-18 10:58:34.9300.0521-0.621.2718.9
DIXCH2025-10-18 10:58:36.6420.02000.370.732025-10-18 10:58:41.1600.1003-0.051.1235.5
RSLFR2025-10-18 10:58:36.4400.0200-0.711.042025-10-18 10:58:41.0360.0400-1.600.1842.3
LSDGU2025-10-18 10:58:38.5700.02510.240.972025-10-18 10:58:44.0290.2016-0.640.8751.2
CIROGU2025-10-18 10:58:39.2120.02000.041.352025-10-18 10:58:45.4300.1444-0.810.6953.4
SENINCH2025-10-18 10:58:39.7330.02000.001.332025-10-18 10:58:46.4590.0400-0.690.9455.7
SATIGU2025-10-18 10:58:41.1100.03310.320.852025-10-18 10:58:48.7000.1785-0.640.8564.2
EMBDCH2025-10-18 10:58:41.2450.0200-0.581.122025-10-18 10:58:50.3850.2787-0.240.9670.1
RSPGU2025-10-18 10:58:44.2750.02000.171.142025-10-18 10:58:54.1730.0400-0.210.9486.2


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
REMY GUHH0.431.02e-116.4133
BLANCGUHH0.731.80e-117.6235
MRGE IVHH0.831.69e-118.9179
DIX CHHH0.866.52e-235.554
LSD GUHH0.501.37e-251.2173
CIRO GUHH0.701.07e-253.4130
SENINCHHH0.491.13e-255.720
SATI GUHH0.504.98e-364.293
EMBD CHHH0.173.33e-370.160
RSP GUHH0.504.82e-386.2169


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 GUHHZ6.7665e-68.5655e-74.0114e-71.0288e-75.4373e-81.0327e-51.4483e-69.1219e-81.9408e-816.4133
REMY GUHHN1.0385e-51.1217e-65.4513e-72.4518e-71.1400e-71.5709e-53.2012e-61.6503e-72.2688e-816.4133
REMY GUHHE9.9243e-61.4330e-67.1668e-72.3778e-71.4428e-71.9929e-53.1047e-62.3885e-73.7217e-816.4133
BLANCGUHHZ1.6640e-52.0894e-68.7481e-72.8115e-71.4282e-73.6775e-53.0663e-62.5807e-75.3695e-817.6235
BLANCGUHHN2.2453e-53.0201e-61.2886e-64.2211e-72.3289e-74.5780e-55.7389e-63.9410e-77.7449e-817.6235
BLANCGUHHE2.0885e-53.0751e-61.3212e-64.6861e-72.6945e-77.5001e-53.6441e-64.5868e-78.2939e-817.6235
MRGE IVHHZ2.6023e-52.6875e-65.4188e-71.8894e-71.0370e-71.8760e-52.9509e-62.0793e-74.7833e-818.9179
MRGE IVHHN5.4097e-55.5479e-61.0581e-63.2223e-71.6073e-76.8579e-54.0355e-63.8664e-71.1850e-718.9179
MRGE IVHHE5.4765e-55.7951e-69.5159e-73.4557e-71.6750e-73.4975e-54.1613e-63.3015e-79.6478e-818.9179
DIX CHHHZ7.1652e-67.1578e-74.6091e-71.7174e-76.8619e-81.2577e-52.0196e-61.0350e-71.9010e-835.554
DIX CHHHN1.0323e-51.0973e-65.8913e-71.6582e-78.8422e-82.1924e-52.4073e-61.3634e-72.1546e-835.554
DIX CHHHE1.1208e-51.2712e-65.5198e-72.1486e-79.5806e-82.1056e-52.3789e-61.4436e-73.0008e-835.554
LSD GUHHZ1.5861e-61.5552e-74.9633e-82.1323e-88.6676e-91.8295e-61.8084e-71.5915e-83.4618e-951.2173
LSD GUHHN2.6931e-62.8166e-74.7381e-81.5727e-88.9734e-92.4094e-61.6823e-72.0582e-84.7761e-951.2173
LSD GUHHE3.5951e-62.9492e-71.1041e-73.6035e-81.6592e-82.7631e-65.0830e-72.7270e-85.0549e-951.2173
CIRO GUHHZ1.5070e-61.8755e-75.8230e-82.1091e-81.1020e-82.6592e-62.6309e-71.6782e-83.3381e-953.4130
CIRO GUHHN2.3725e-61.8172e-78.1734e-82.8405e-81.3320e-81.9914e-62.9076e-72.2322e-83.7753e-953.4130
CIRO GUHHE1.4315e-61.5750e-74.1947e-81.7477e-88.4887e-92.0840e-62.3784e-71.4751e-82.8053e-953.4130
SENINCHHHZ1.4040e-62.7172e-71.9196e-76.2315e-83.5360e-84.5217e-68.5598e-75.3318e-88.0379e-955.720
SENINCHHHN1.3283e-61.6608e-78.7368e-83.0152e-81.6804e-83.7563e-64.4243e-72.4481e-84.0790e-955.720
SENINCHHHE1.7243e-61.8507e-79.1952e-82.9537e-81.7778e-82.6041e-64.4834e-72.6750e-84.5035e-955.720
SATI GUHHZ4.5931e-75.5487e-82.0532e-81.1284e-81.6829e-81.3982e-66.9830e-82.9683e-81.9876e-964.293
SATI GUHHN1.1587e-61.2985e-72.8889e-81.2165e-87.9739e-92.0991e-68.0271e-81.2361e-82.8093e-964.293
SATI GUHHE8.5870e-71.2220e-73.7005e-81.3672e-81.5112e-82.8097e-61.1107e-72.4260e-82.7974e-964.293
EMBD CHHHZ8.6871e-76.4315e-84.2408e-82.7146e-81.2436e-81.7871e-62.0052e-71.5104e-81.8442e-970.160
EMBD CHHHN4.0106e-74.8108e-82.8290e-81.2518e-86.9561e-99.1489e-71.3173e-71.1307e-81.3475e-970.160
EMBD CHHHE6.3337e-74.9800e-83.4232e-81.3609e-86.6029e-91.4981e-61.5611e-78.5567e-91.2754e-970.160
RSP GUHHZ3.5808e-74.7274e-83.1006e-81.2748e-86.0994e-97.0998e-71.3430e-79.4531e-91.1184e-986.2169
RSP GUHHN3.9063e-75.3611e-83.7558e-81.1919e-86.8067e-91.3701e-61.7287e-71.0425e-81.2389e-986.2169
RSP GUHHE5.1180e-78.0676e-85.0445e-81.6081e-89.5776e-91.0825e-62.1392e-71.4586e-81.9985e-986.2169
*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)

rsni