MANUAL Location - Area: Francia , magnitude (ML): 0.8
2025-11-03 16:08:33 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-11-04 08:18:18

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Earthquake info - Manual location
Event - ID :251103160818
Magnitude (ML) :0.8 +/- 0.2
Origin Time :2025-11-03 16:08:33.415 (UTC)
Location : Latitude: 44.440 N, Longitude: 6.378 E
Area :Francia
Depth (km) :10.95
Distances (km) : 44.6 --- Argentera
48.7 --- Acceglio
53.0 --- Bellino
53.0 --- Pietraporzio
53.9 --- Prazzo
55.4 --- Pontechianale
55.9 --- Canosio
56.4 --- Sambuco
56.8 --- Marmora
57.3 --- Casteldelfino
57.5 --- Elva
59.8 --- Stroppo
62.9 --- Claviere
63.7 --- Celle di Macra
63.8 --- Macra
64.9 --- Vinadio
65.8 --- Cesana Torinese
66.2 --- Sampeyre
66.3 --- Castelmagno
67.5 --- Sauze di Cesana

Quality location estimate: Erh: 2.7 km, Erz: 3.2 km, Nf: 14, Gap: 180 °, Rms: 0.24


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.
OGDIFR2025-11-03 16:08:41.2700.02410.011.282025-11-03 16:08:46.6800.1123-0.341.0340.4
OGAGFR2025-11-03 16:08:41.4080.0200-0.301.032025-11-03 16:08:47.3600.0400-0.101.3242.5
PZZGU2025-11-03 16:08:44.9400.11150.270.852025-11-03 16:08:52.1290.4219-0.310.9060.3
ISOFR2025-11-03 16:08:45.0400.03010.051.282025-11-03 16:08:52.6140.0400-0.171.2761.7
RRLGU2025-11-03 16:08:45.8440.02000.320.672025-11-03 16:08:53.6040.0400-0.380.9863.9
VINDIV2025-11-03 16:08:45.9720.02000.270.832025-11-03 16:08:53.2050.0400-0.750.3165.9
STVGU2025-11-03 16:08:47.6380.0200-0.011.322025-11-03 16:08:56.7350.0400-0.400.9479.3


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
OGAG FRHH0.693.12e-242.518
PZZ GUHH0.954.75e-260.383
ISO FRHH0.448.16e-361.7118
RRL GUHH0.951.66e-263.931
STV GUHH0.941.02e-279.3106


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.
(°)
OGAG FRHHZ8.7446e-72.2798e-71.9110e-78.7913e-83.8896e-82.4360e-68.5043e-75.3386e-86.4399e-942.518
OGAG FRHHN9.9548e-72.3782e-72.2105e-78.7893e-84.0974e-82.2117e-61.9373e-65.2209e-86.1753e-942.518
OGAG FRHHE1.0900e-62.9586e-72.9991e-71.2212e-75.1739e-82.0289e-62.2669e-66.6676e-88.9633e-942.518
PZZ GUHHZ2.7250e-65.4612e-73.4990e-78.9119e-84.5467e-88.7904e-61.8279e-67.7621e-81.2541e-860.383
PZZ GUHHN4.1858e-66.7834e-74.3514e-71.5031e-77.5557e-81.0453e-52.3335e-61.1424e-71.3955e-860.383
PZZ GUHHE2.9807e-66.2549e-74.9818e-71.1730e-76.7696e-88.2605e-63.1283e-69.7507e-81.7792e-860.383
ISO FRHHZ1.4541e-62.0908e-76.9136e-82.4521e-81.4259e-82.3285e-62.8421e-72.3134e-84.6770e-961.7118
ISO FRHHN1.4459e-61.3799e-77.1925e-82.7166e-81.5337e-82.9021e-63.3931e-72.1133e-83.0674e-961.7118
ISO FRHHE1.8014e-61.7117e-76.9794e-82.6933e-81.6351e-84.0933e-62.3613e-72.2625e-83.6744e-961.7118
RRL GUHHZ5.7676e-71.1343e-77.7983e-85.7675e-86.5203e-81.6166e-65.5395e-71.1942e-77.6403e-963.931
RRL GUHHN5.7962e-71.3130e-71.0628e-78.3133e-83.1442e-81.5491e-66.1762e-73.8071e-84.5501e-963.931
RRL GUHHE6.0789e-71.8917e-71.4561e-76.7512e-83.1461e-81.8083e-69.4932e-73.3948e-85.1106e-963.931
STV GUHHZ2.0584e-62.4871e-71.0657e-73.0885e-81.7836e-84.0817e-65.0653e-72.9010e-85.1601e-979.3106
STV GUHHN1.6556e-61.8018e-71.0243e-73.2193e-81.9839e-83.4121e-64.1682e-73.2446e-84.2733e-979.3106
STV GUHHE1.2796e-61.5495e-78.1825e-82.9785e-81.3175e-82.0732e-63.2668e-72.1465e-83.4615e-979.3106
*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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