MANUAL Location - Area: Alpi Pennine , magnitude (ML): 0.7
2025-11-18 18:07:45 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-11-19 07:46:26

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Earthquake info - Manual location
Event - ID :251118180719
Magnitude (ML) :0.7 +/- 0.2
Origin Time :2025-11-18 18:07:45.698 (UTC)
Location : Latitude: 45.914 N, Longitude: 7.059 E
Area :Alpi Pennine
Depth (km) :9.76
Distances (km) : 13.8 --- Saint-Rhemy-En-Bosses
15.0 --- Courmayeur
15.4 --- Saint-Oyen
16.7 --- Etroubles
17.4 --- Morgex
17.6 --- Pre -Saint-Didier
18.6 --- La Salle
20.2 --- Allein
20.6 --- Ollomont
21.9 --- Doues
22.8 --- Valpelline
23.4 --- La Thuile
23.4 --- Saint-Nicolas
23.5 --- Gignod
23.6 --- Avise
24.3 --- Roisan
24.8 --- Arvier
26.0 --- Oyace
26.1 --- Villeneuve
26.2 --- Saint-Pierre

Quality location estimate: Erh: 1.3 km, Erz: 1.6 km, Nf: 26, Gap: 76 °, Rms: 0.35


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.
REMYGU2025-11-18 18:07:49.6200.00800.360.542025-11-18 18:07:51.7300.05210.061.5416.7
BLANCGU2025-11-18 18:07:49.5300.0070-0.001.912025-11-18 18:07:51.2770.2206-0.850.7018.1
MRGEIV2025-11-18 18:07:49.9900.01000.290.462025-11-18 18:07:52.1800.0581-0.230.8019.7
DIXCH2025-11-18 18:07:52.7960.02000.071.492025-11-18 18:07:57.0040.0400-0.560.6634.6
RSLFR2025-11-18 18:07:53.9000.02110.031.662025-11-18 18:07:58.5400.1263-0.920.6743.0
LSDGU2025-11-18 18:07:55.5210.02000.420.482025-11-18 18:08:01.3040.1594-0.271.0152.3
CIROGU2025-11-18 18:07:55.8050.0200-0.041.592025-11-18 18:08:02.2500.0400-0.730.7954.0
SENINCH2025-11-18 18:07:56.0630.0200-0.061.532025-11-18 18:08:02.4900.0400-0.910.6854.5
EMBDCH2025-11-18 18:07:58.0220.0200-0.280.822025-11-18 18:08:06.7290.0400-0.280.9869.3
MMKCH2025-11-18 18:07:59.1110.02000.530.282025-11-18 18:08:06.9110.0400-0.700.7872.6
CANIGU2025-11-18 18:07:57.7250.0200-0.680.772025-11-18 18:08:06.8270.0400-0.241.0473.1


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
REMY GUHH0.439.87e-216.7138
BLANCGUHH0.761.81e-118.1231
MRGE IVHH1.092.84e-119.7179
DIX CHHH1.041.05e-134.655
LSD GUHH0.852.96e-252.3173
CIRO GUHH0.527.02e-354.0131
SENINCHHH0.501.22e-254.520
MMK CHHH0.584.27e-372.677
CANI GUHH0.659.12e-373.1137


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 GUHHZ1.4322e-51.7642e-64.8954e-71.3764e-77.5579e-89.0218e-63.3130e-61.3332e-72.5560e-816.7138
REMY GUHHN1.6273e-52.2011e-67.0887e-72.1195e-71.1277e-72.3853e-52.7242e-62.0343e-74.0740e-816.7138
REMY GUHHE1.5754e-51.6406e-65.6115e-72.7982e-71.1817e-71.3480e-52.9614e-61.6979e-73.1640e-816.7138
BLANCGUHHZ2.5243e-53.3423e-61.2787e-62.8749e-71.9881e-79.4505e-55.2459e-63.7326e-77.6287e-818.1231
BLANCGUHHN4.4868e-55.7544e-61.2049e-63.8461e-72.1353e-77.6474e-55.2176e-63.2738e-76.4934e-818.1231
BLANCGUHHE3.0358e-53.8787e-61.6988e-64.2295e-72.3481e-71.2038e-47.1276e-63.7903e-78.1352e-818.1231
MRGE IVHHZ4.6297e-53.4581e-64.9351e-71.6595e-71.0262e-72.7922e-52.3573e-62.5533e-76.4891e-819.7179
MRGE IVHHN1.2538e-41.0836e-51.3302e-64.7430e-72.7282e-79.8037e-57.0561e-67.2551e-71.9852e-719.7179
MRGE IVHHE1.0299e-49.9640e-61.2552e-64.5347e-72.8143e-76.6177e-57.2563e-66.4483e-71.8782e-719.7179
DIX CHHHZ1.0450e-51.1247e-66.6218e-71.6971e-79.0227e-81.5448e-52.3620e-61.4241e-72.3556e-834.655
DIX CHHHN1.2515e-51.6261e-68.4920e-72.6746e-71.3321e-72.6317e-53.9210e-62.2346e-73.3621e-834.655
DIX CHHHE1.4828e-52.0747e-68.8587e-72.1152e-71.0024e-73.2415e-53.5787e-61.9272e-74.5977e-834.655
LSD GUHHZ2.3561e-62.6111e-79.9328e-84.3651e-82.3114e-83.2293e-62.9257e-73.7331e-85.8135e-952.3173
LSD GUHHN3.4487e-62.8610e-71.0225e-72.7037e-81.7279e-84.3666e-65.1079e-72.8736e-85.3684e-952.3173
LSD GUHHE5.5196e-66.6021e-72.6809e-78.1842e-84.5083e-88.4390e-61.0101e-66.9200e-81.2005e-852.3173
CIRO GUHHZ2.4658e-62.0082e-74.0639e-81.4485e-88.3322e-91.5605e-61.6238e-71.1138e-81.9765e-954.0131
CIRO GUHHN1.6623e-61.3806e-75.3365e-81.5437e-89.3690e-91.3249e-63.3681e-71.2706e-83.0056e-954.0131
CIRO GUHHE2.1328e-61.8789e-73.3891e-81.4952e-88.0578e-91.7390e-61.0685e-71.1838e-82.0038e-954.0131
SENINCHHHZ1.6461e-63.5138e-71.7927e-74.8040e-82.9662e-84.6000e-66.9077e-74.7365e-87.0806e-954.520
SENINCHHHN1.3415e-61.8551e-71.2545e-73.7504e-81.9746e-83.0042e-68.0926e-72.5992e-84.1026e-954.520
SENINCHHHE1.8040e-62.2849e-71.3511e-74.1572e-81.9904e-85.2802e-64.1099e-73.0417e-85.1933e-954.520
EMBD CHHHZ4.6273e-75.1297e-83.8223e-81.9341e-88.1321e-97.0401e-71.8539e-71.1641e-81.5733e-969.360
EMBD CHHHN3.9545e-75.3060e-83.8682e-81.8098e-88.0377e-91.3874e-61.6706e-71.0720e-81.4365e-969.360
EMBD CHHHE3.6581e-74.6638e-82.9863e-81.5553e-87.7630e-97.1252e-71.4089e-79.3032e-91.1508e-969.360
MMK CHHHZ5.7651e-77.4080e-84.1576e-81.8131e-81.0608e-81.5220e-61.4834e-71.4210e-81.6986e-972.677
MMK CHHHN5.5422e-77.8630e-83.7898e-81.3785e-89.2062e-92.1256e-61.4328e-71.1860e-81.8007e-972.677
MMK CHHHE5.8478e-75.4462e-83.0402e-81.0104e-85.2894e-91.0601e-61.9999e-76.6752e-91.2527e-972.677
CANI GUHHZ1.0366e-61.1585e-74.7667e-81.6625e-81.0037e-81.3293e-62.2237e-71.6850e-82.3489e-973.1137
CANI GUHHN1.1541e-61.2705e-76.0797e-82.5451e-81.1974e-82.0628e-62.8268e-71.7952e-82.7022e-973.1137
CANI GUHHE1.2819e-61.4922e-77.5149e-82.5035e-81.2865e-82.2785e-65.9420e-71.8426e-83.0059e-973.1137
*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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