MANUAL Location - Area: Alpi Pennine , magnitude (ML): 0.3
2025-09-27 11:06:19 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-09-29 06:50:17

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Earthquake info - Manual location
Event - ID :250927110533
Magnitude (ML) :0.3 +/- 0.2
Origin Time :2025-09-27 11:06:19.594 (UTC)
Location : Latitude: 45.906 N, Longitude: 7.006 E
Area :Alpi Pennine
Depth (km) :9.43
Distances (km) : 12.7 --- Courmayeur
15.8 --- Pre -Saint-Didier
16.2 --- Saint-Rhemy-En-Bosses
16.5 --- Morgex
18.2 --- Saint-Oyen
18.3 --- La Salle
19.6 --- Etroubles
21.3 --- La Thuile
23.2 --- Allein
24.1 --- Avise
24.2 --- Ollomont
24.3 --- Saint-Nicolas
25.1 --- Doues
25.6 --- Arvier
26.2 --- Valpelline
26.3 --- Gignod
27.2 --- Roisan
27.4 --- Villeneuve
27.6 --- Introd
27.7 --- Saint-Pierre

Quality location estimate: Erh: 0.4 km, Erz: 0.5 km, Nf: 22, Gap: 120 °, Rms: 0.42


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.
COURMFR2025-09-27 11:06:22.7100.00700.011.792025-09-27 11:06:23.9580.0400-0.801.1014.8
REMYGU2025-09-27 11:06:23.5300.00800.001.802025-09-27 11:06:25.3280.3407-0.870.5618.2
MRGEIV2025-09-27 11:06:23.5400.0090-0.031.682025-09-27 11:06:25.5190.0400-0.741.1019.2
DIXCH2025-09-27 11:06:27.3200.02110.031.522025-09-27 11:06:31.5390.1133-1.050.3738.2
RSLFR2025-09-27 11:06:27.0500.0803-0.061.212025-09-27 11:06:31.5100.0400-0.710.9139.3
LSDGU2025-09-27 11:06:28.9950.02000.001.442025-09-27 11:06:34.6290.0400-0.810.8351.9
CIROGU2025-09-27 11:06:29.7480.0200-0.470.242025-09-27 11:06:35.9000.1524-1.770.0556.4
SENINCH2025-09-27 11:06:30.3670.0200-0.091.042025-09-27 11:06:37.3060.0400-0.750.7956.8
SATIGU2025-09-27 11:06:31.9830.02000.061.162025-09-27 11:06:39.3900.4329-1.540.1967.9


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
COURMFRHH0.692.23e-114.8199
REMY GUHH0.134.19e-218.2123
MRGE IVHH0.487.30e-219.2164
DIX CHHH0.593.04e-238.258
LSD GUHH0.105.29e-351.9169
CIRO GUHH0.455.37e-356.4128
SENINCHHH0.246.11e-356.824
SATI GUHH0.272.57e-367.993


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.
(°)
COURMFRHHZ6.6265e-57.2226e-61.3797e-63.5589e-72.1664e-79.3768e-55.1417e-64.3448e-79.5376e-814.8199
COURMFRHHN5.8740e-55.8677e-61.5883e-64.0441e-72.5695e-71.0531e-45.1949e-65.5333e-71.2220e-714.8199
COURMFRHHE3.4888e-54.0033e-61.5394e-63.9966e-72.3914e-77.0639e-56.4069e-64.0160e-79.3264e-814.8199
REMY GUHHZ3.2286e-63.8600e-71.4488e-75.4534e-82.3770e-85.3697e-65.4003e-73.8202e-88.2881e-918.2123
REMY GUHHN4.8070e-66.3426e-72.9061e-71.3030e-75.0354e-88.6169e-61.3991e-67.7862e-81.2310e-818.2123
REMY GUHHE4.5226e-66.6562e-72.8220e-78.5824e-84.4065e-86.5511e-61.2887e-67.8459e-81.5745e-818.2123
MRGE IVHHZ1.9741e-51.8066e-62.5033e-79.4341e-85.4672e-89.5526e-61.4250e-61.3413e-73.2532e-819.2164
MRGE IVHHN3.2517e-53.0075e-64.3499e-71.3792e-77.2973e-82.8262e-51.7791e-62.0033e-75.1446e-819.2164
MRGE IVHHE2.4843e-51.8891e-64.3071e-71.3041e-77.7430e-81.6097e-52.0243e-61.3339e-73.2345e-819.2164
DIX CHHHZ3.1930e-64.3779e-71.9324e-75.9017e-82.8358e-86.1268e-68.7311e-74.1634e-87.6870e-938.258
DIX CHHHN4.7158e-65.5743e-72.6774e-78.1390e-83.7544e-81.0816e-51.1984e-65.3832e-81.2537e-838.258
DIX CHHHE4.5980e-64.3500e-72.3596e-78.8613e-83.9988e-86.8004e-68.6855e-76.0684e-81.0636e-838.258
LSD GUHHZ1.1755e-61.1969e-72.1003e-81.0350e-85.2824e-98.1292e-77.1428e-89.7634e-92.2476e-951.9169
LSD GUHHN1.1164e-61.0859e-72.2543e-89.2604e-94.9096e-91.1306e-69.1628e-81.0776e-81.8257e-951.9169
LSD GUHHE1.6030e-61.5204e-74.3871e-81.4048e-86.7888e-91.7016e-61.7616e-71.1674e-82.9258e-951.9169
CIRO GUHHZ7.6495e-71.1190e-72.9791e-89.5619e-96.4342e-91.3536e-61.5000e-79.1844e-92.2771e-956.4128
CIRO GUHHN1.1966e-61.2578e-73.7834e-81.4647e-88.3020e-91.0489e-61.9181e-71.5724e-82.5178e-956.4128
CIRO GUHHE8.3663e-78.1640e-82.0195e-81.0208e-86.2798e-91.2786e-61.0429e-71.0042e-82.0713e-956.4128
SENINCHHHZ7.8708e-71.4547e-78.0489e-83.3902e-82.2188e-81.7780e-63.0355e-72.3974e-83.9945e-956.824
SENINCHHHN6.4946e-77.7271e-84.5570e-82.4548e-81.7159e-81.2193e-61.9558e-72.3164e-82.0965e-956.824
SENINCHHHE9.3068e-78.8833e-85.0204e-82.2358e-81.6857e-81.7517e-62.5580e-72.3469e-82.4930e-956.824
SATI GUHHZ2.7352e-73.4722e-81.3981e-85.9081e-95.3656e-96.0993e-75.5699e-81.0009e-88.6093e-1067.993
SATI GUHHN5.7773e-75.7671e-81.5989e-87.4722e-95.8778e-91.3016e-64.6603e-87.5452e-91.2221e-967.993
SATI GUHHE4.9874e-75.8130e-82.1641e-89.0141e-99.2985e-91.3629e-66.4796e-81.3172e-81.1814e-967.993
*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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