MANUAL Location - Area: Alpi Cozie , magnitude (ML): 0.9
2025-11-27 02:41:12 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-11-27 08:49:22

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Earthquake info - Manual location
Event - ID :251127023934
Magnitude (ML) :0.9 +/- 0.2
Origin Time :2025-11-27 02:41:12.96 (UTC)
Location : Latitude: 44.861 N, Longitude: 6.758 E
Area :Alpi Cozie
Depth (km) :5.35
Distances (km) : 8.8 --- Claviere
10.6 --- Cesana Torinese
12.0 --- Sauze di Cesana
14.4 --- Sestriere
20.1 --- Oulx
20.2 --- Sauze d Oulx
22.2 --- Pragelato
23.1 --- Prali
24.6 --- Bardonecchia
24.8 --- Salza di Pinerolo
25.6 --- Salbertrand
25.9 --- Massello
28.9 --- Bobbio Pellice
29.4 --- Perrero
29.6 --- Exilles
29.8 --- Usseaux
30.2 --- Fenestrelle
31.9 --- Villar Pellice
33.4 --- Roure
33.9 --- Chiomonte

Quality location estimate: Erh: 0.9 km, Erz: 1 km, Nf: 34, Gap: 107 °, Rms: 0.25


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.
RRLGU2025-11-27 02:41:15.6500.00500.230.952025-11-27 02:41:17.0700.0280-0.021.8210.3
OGAGFR2025-11-27 02:41:17.2200.01000.031.732025-11-27 02:41:19.5000.0561-0.640.5720.2
OGMOFR2025-11-27 02:41:20.6300.0200-0.061.692025-11-27 02:41:25.3100.1203-0.720.5239.3
BHBGU2025-11-27 02:41:20.8900.02010.041.682025-11-27 02:41:25.5910.1885-0.710.5340.3
SURFFR2025-11-27 02:41:21.1130.0200-0.041.712025-11-27 02:41:26.8900.0400-0.251.0142.9
PZZGU2025-11-27 02:41:21.8900.0251-0.201.092025-11-27 02:41:27.7300.1685-0.950.3349.0
RSPGU2025-11-27 02:41:22.9100.02610.280.892025-11-27 02:41:28.4800.3858-0.820.5051.4
VINDIV2025-11-27 02:41:25.0810.0200-0.550.622025-11-27 02:41:34.7260.04000.011.3669.8
LSDGU2025-11-27 02:41:26.2400.0371-0.051.542025-11-27 02:41:34.4900.3297-0.960.3973.1
LATOIV2025-11-27 02:41:26.3860.02000.310.822025-11-27 02:41:35.1060.0400-0.111.2973.9
ISOFR2025-11-27 02:41:27.3710.02000.181.252025-11-27 02:41:37.7430.04000.550.4579.0
STVGU2025-11-27 02:41:27.3410.0200-0.051.522025-11-27 02:41:37.6890.04000.021.2982.1
ENRGU2025-11-27 02:41:28.2480.02000.011.532025-11-27 02:41:39.8700.04000.780.2187.8
CANIGU2025-11-27 02:41:29.7720.0200-0.021.492025-11-27 02:41:41.9700.04000.400.7597.3
MRGEIV2025-11-27 02:41:31.1540.0200-0.470.722025-11-27 02:41:45.0430.04000.660.38103.9
CIROGU2025-11-27 02:41:31.4550.0200-0.410.782025-11-27 02:41:43.5860.0400-1.220.19104.2
GBOSGU2025-11-27 02:41:31.7350.02000.111.352025-11-27 02:41:44.3820.0400-0.261.04110.1


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
RRL GUHH0.945.08e-110.321
OGAG FRHH0.922.18e-120.2245
BHB GUHH0.783.87e-240.394
PZZ GUHH1.099.89e-249.0144
RSP GUHH0.772.69e-251.451
LSD GUHH0.891.59e-273.124
ISO FRHH0.535.88e-379.0163
STV GUHH0.867.83e-382.1147
ENR GUHH1.162.72e-287.8143
CANI GUHH0.837.17e-397.349
MRGE IVHH0.724.11e-3103.913
CIRO GUHH1.065.60e-3104.237
GBOS GUHH1.297.88e-3110.1128


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.
(°)
RRL GUHHZ4.8400e-55.5288e-61.4757e-64.4827e-72.5390e-77.3969e-55.2236e-64.8305e-71.1477e-710.321
RRL GUHHN3.2492e-56.3105e-63.0792e-67.6080e-73.8997e-71.0550e-49.6686e-66.8024e-71.4283e-710.321
RRL GUHHE9.7163e-51.2413e-54.1567e-61.3463e-66.9367e-72.1591e-41.2064e-51.2102e-62.4265e-710.321
OGAG FRHHZ1.2302e-52.3229e-61.3402e-63.7933e-71.7456e-73.2185e-55.9600e-62.8251e-75.6668e-820.2245
OGAG FRHHN1.1901e-52.6039e-61.6827e-66.0999e-73.7939e-72.7261e-58.4999e-65.6799e-78.2141e-820.2245
OGAG FRHHE8.4438e-61.5377e-61.0934e-63.2823e-71.8733e-71.2975e-56.5873e-62.7911e-74.2253e-820.2245
BHB GUHHZ6.6712e-67.6396e-73.3509e-79.2063e-84.5802e-82.1548e-51.5314e-67.5205e-81.6543e-840.394
BHB GUHHN5.2499e-67.3894e-72.8123e-79.4890e-83.7683e-81.3990e-51.4252e-67.5243e-81.5923e-840.394
BHB GUHHE6.0694e-68.1372e-73.0332e-71.0243e-74.4187e-81.2459e-51.1240e-68.3041e-81.6683e-840.394
PZZ GUHHZ9.3058e-61.0642e-66.3839e-71.5156e-77.9649e-81.6534e-53.7228e-61.2388e-72.3947e-849.0144
PZZ GUHHN5.9373e-67.3802e-75.2096e-71.4806e-78.0008e-81.1035e-52.9326e-61.1688e-72.0638e-849.0144
PZZ GUHHE8.9442e-61.1191e-69.0927e-72.0668e-71.1180e-71.3843e-55.6412e-61.6857e-72.8710e-849.0144
RSP GUHHZ4.0887e-64.2635e-71.2415e-74.3133e-82.0340e-86.3650e-63.9102e-73.8193e-88.8645e-951.451
RSP GUHHN4.2371e-65.2301e-72.1518e-75.5498e-82.4230e-88.4316e-68.2958e-74.8095e-81.0858e-851.451
RSP GUHHE3.7430e-64.8503e-72.2910e-78.6402e-84.0806e-81.1378e-58.7709e-76.2431e-81.1052e-851.451
LSD GUHHZ1.5902e-62.1166e-71.2849e-73.1807e-81.7648e-83.6124e-69.5843e-72.6941e-84.7599e-973.124
LSD GUHHN2.1503e-62.7018e-71.1952e-73.1747e-81.5154e-85.0904e-66.8001e-72.7940e-85.7924e-973.124
LSD GUHHE3.3378e-63.9184e-71.6576e-73.7685e-82.0237e-84.2383e-69.5992e-73.2649e-86.8059e-973.124
ISO FRHHZ5.9134e-79.6695e-84.0275e-81.3065e-89.6507e-91.3030e-61.2941e-71.5158e-82.2535e-979.0163
ISO FRHHN7.3906e-78.8366e-83.1791e-81.3428e-81.0796e-81.1662e-61.4255e-71.5619e-81.8061e-979.0163
ISO FRHHE7.4069e-79.3984e-84.6365e-82.3227e-81.1982e-81.2170e-61.8245e-72.2473e-82.2464e-979.0163
STV GUHHZ1.0771e-61.1994e-78.0939e-83.8968e-86.0169e-82.9651e-62.8066e-71.2340e-71.3105e-882.1147
STV GUHHN7.7487e-71.2811e-76.2435e-82.8462e-81.8689e-82.7044e-62.7740e-72.3060e-83.1793e-982.1147
STV GUHHE1.0081e-61.2840e-76.8333e-83.4277e-82.2844e-82.5032e-62.5998e-73.1644e-83.6125e-982.1147
ENR GUHHZ2.5666e-63.6163e-71.3842e-75.1904e-82.5273e-84.7376e-67.0612e-73.8847e-86.7523e-987.8143
ENR GUHHN5.5316e-67.0790e-72.1296e-79.0086e-85.0229e-81.0547e-59.6216e-79.3877e-81.3797e-887.8143
ENR GUHHE4.5534e-64.9945e-71.8840e-76.2519e-83.9803e-87.1826e-69.8398e-76.8417e-89.6419e-987.8143
CANI GUHHZ5.8939e-77.8663e-84.7767e-81.7795e-81.0199e-81.2999e-62.5574e-71.4974e-81.7768e-997.349
CANI GUHHN5.6832e-78.3214e-84.5063e-82.0576e-89.7049e-91.1802e-61.8404e-71.2574e-82.2475e-997.349
CANI GUHHE8.1424e-79.5691e-85.9685e-82.6820e-81.1834e-81.6138e-63.0230e-71.6054e-82.3094e-997.349
MRGE IVHHZ5.5599e-75.8816e-82.6401e-81.4110e-87.3857e-95.4822e-71.6982e-71.1400e-81.1818e-9103.913
MRGE IVHHN9.1860e-71.0272e-72.7951e-81.3886e-81.1264e-88.7316e-71.2474e-71.7855e-82.3118e-9103.913
MRGE IVHHE6.6588e-75.8976e-82.1741e-81.5614e-81.1409e-85.7066e-71.2586e-71.6822e-81.4248e-9103.913
CIRO GUHHZ5.3984e-78.1696e-85.8272e-81.9355e-88.8812e-91.5326e-64.8667e-71.1745e-81.6789e-9104.237
CIRO GUHHN7.0912e-78.8374e-84.6301e-81.7130e-87.1686e-91.2291e-62.4146e-71.0565e-81.9294e-9104.237
CIRO GUHHE9.0043e-71.0322e-76.0942e-81.5807e-88.1637e-91.3032e-62.7523e-71.2855e-82.6827e-9104.237
GBOS GUHHZ5.6248e-71.2045e-79.4561e-82.9858e-81.5753e-81.3841e-65.6725e-72.0765e-83.0660e-9110.1128
GBOS GUHHN8.0906e-71.5716e-77.9536e-83.4555e-82.1515e-81.5760e-64.1854e-73.3844e-84.0363e-9110.1128
GBOS GUHHE7.0259e-71.3056e-76.3752e-82.1705e-81.2491e-81.9673e-62.3941e-71.8419e-82.7500e-9110.1128
*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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