MANUAL Location - Area: Alpi Cozie , magnitude (ML): 0.6
2025-09-26 22:27:46 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-09-29 06:39:31

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Earthquake info - Manual location
Event - ID :250926222635
Magnitude (ML) :0.6 +/- 0.2
Origin Time :2025-09-26 22:27:46.707 (UTC)
Location : Latitude: 44.586 N, Longitude: 6.687 E
Area :Alpi Cozie
Depth (km) :6.08
Distances (km) : 26.1 --- Bellino
26.9 --- Acceglio
27.3 --- Pontechianale
28.9 --- Argentera
30.3 --- Casteldelfino
31.3 --- Prazzo
32.3 --- Elva
34.4 --- Canosio
35.2 --- Marmora
35.9 --- Stroppo
38.4 --- Pietraporzio
39.3 --- Crissolo
39.7 --- Claviere
39.8 --- Sampeyre
40.1 --- Macra
40.6 --- Celle di Macra
41.1 --- Oncino
41.2 --- Sambuco
41.4 --- Ostana
41.7 --- Cesana Torinese

Quality location estimate: Erh: 0.9 km, Erz: 1.1 km, Nf: 24, Gap: 185 °, Rms: 0.26


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.
OGAGFR2025-09-26 22:27:51.8500.0562-0.181.382025-09-26 22:27:55.2980.0762-0.490.6226.3
PZZGU2025-09-26 22:27:53.6100.0170-0.161.472025-09-26 22:27:58.5800.1103-0.281.1635.9
RRLGU2025-09-26 22:27:54.4000.0190-0.021.652025-09-26 22:28:00.0300.12130.131.2239.0
VINDIV2025-09-26 22:27:54.7730.0200-1.290.172025-09-26 22:28:01.4230.0400-1.190.2149.8
ISOFR2025-09-26 22:27:56.6500.02610.011.632025-09-26 22:28:02.7000.2837-0.740.5053.6
BHBGU2025-09-26 22:27:56.9100.02710.131.252025-09-26 22:28:03.7200.1002-0.211.3253.7
STVGU2025-09-26 22:27:58.1700.03110.071.472025-09-26 22:28:05.8600.1935-0.161.2663.7
OGMOFR2025-09-26 22:27:59.5350.02000.061.492025-09-26 22:28:08.3100.2096-0.281.1169.4
ENRGU2025-09-26 22:27:59.3600.03510.091.402025-09-26 22:28:05.7570.0400-2.280.0070.7
RSPGU2025-09-26 22:28:01.3660.02000.570.122025-09-26 22:28:10.3710.0400-0.370.9977.7
TURFFR2025-09-26 22:28:02.9600.04420.330.612025-09-26 22:28:13.1110.1303-0.730.4888.3
ESCAFR2025-09-26 22:28:04.7110.0200-0.101.482025-09-26 22:28:17.1570.0400-0.341.02100.4


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
OGAG FRHH0.414.10e-226.3333
PZZ GUHH0.707.58e-235.9104
RRL GUHH0.521.69e-239.012
ISO FRHH0.287.50e-353.6147
BHB GUHH0.541.24e-253.758
STV GUHH0.668.53e-363.7126
ENR GUHH0.922.51e-270.7124
RSP GUHH0.607.62e-377.736
TURF FRHH0.808.52e-388.3140
ESCA FRHH0.826.50e-3100.4147


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 FRHHZ1.9070e-65.2046e-73.2204e-71.7592e-77.0409e-85.6566e-61.6063e-68.7534e-81.0923e-826.3333
OGAG FRHHN3.0310e-65.6191e-73.5253e-71.3506e-75.2051e-81.3392e-51.4292e-67.5894e-81.3996e-826.3333
OGAG FRHHE3.0104e-65.8494e-74.1652e-71.5016e-78.0785e-81.1372e-51.9300e-69.7755e-81.4618e-826.3333
PZZ GUHHZ6.7798e-61.0959e-65.8496e-71.6614e-78.2944e-81.9835e-53.2358e-61.4714e-72.8713e-835.9104
PZZ GUHHN6.2065e-61.1340e-68.1403e-71.9085e-79.5092e-81.8767e-53.2308e-61.4558e-72.4785e-835.9104
PZZ GUHHE5.9342e-69.9920e-76.9417e-72.0611e-71.0313e-71.5601e-54.3160e-61.6356e-72.7103e-835.9104
RRL GUHHZ1.2477e-61.4167e-78.8186e-84.8558e-81.9735e-82.6298e-63.4964e-72.9256e-83.9714e-939.012
RRL GUHHN1.2977e-62.4688e-71.7618e-74.8902e-82.0687e-83.1976e-67.1839e-73.2392e-86.2263e-939.012
RRL GUHHE1.6123e-62.3429e-71.4554e-75.7856e-82.1869e-84.2535e-65.7077e-73.0493e-85.0306e-939.012
ISO FRHHZ1.6971e-61.8163e-76.5555e-81.6543e-88.5265e-92.6797e-62.2413e-71.7600e-83.9161e-953.6147
ISO FRHHN1.4712e-61.5403e-75.9867e-82.0168e-89.8220e-92.3948e-61.9479e-71.6434e-82.9568e-953.6147
ISO FRHHE1.5241e-61.5981e-75.6874e-82.5152e-81.0437e-81.9555e-61.8261e-71.6807e-83.1438e-953.6147
BHB GUHHZ2.1318e-62.4932e-71.4614e-74.7891e-82.7631e-86.4290e-64.4600e-76.1295e-85.6266e-953.758
BHB GUHHN1.4478e-62.1621e-71.3085e-73.7097e-82.2749e-83.7809e-65.4355e-73.9259e-84.7362e-953.758
BHB GUHHE1.7886e-61.9661e-79.9146e-83.4631e-81.9360e-84.8282e-64.6419e-74.1502e-85.1380e-953.758
STV GUHHZ1.2635e-61.4466e-77.0358e-82.3312e-81.1326e-81.8187e-62.9099e-71.8057e-82.7902e-963.7126
STV GUHHN1.2671e-61.3569e-76.5491e-82.5269e-81.4632e-82.9332e-63.0574e-71.9593e-83.3769e-963.7126
STV GUHHE9.2610e-71.4731e-77.7336e-82.2318e-81.1910e-83.0515e-63.1266e-71.9306e-83.2955e-963.7126
ENR GUHHZ2.1228e-62.6133e-71.1116e-74.8122e-82.7361e-86.5237e-63.6763e-74.1792e-85.1372e-970.7124
ENR GUHHN9.8249e-67.9591e-71.6385e-75.3247e-83.9608e-89.0258e-68.1453e-77.0868e-81.6360e-870.7124
ENR GUHHE9.1376e-68.1517e-71.6577e-75.2247e-83.1072e-89.0759e-66.7399e-76.1048e-81.5341e-870.7124
RSP GUHHZ8.1001e-79.6841e-85.3797e-82.7535e-81.1697e-82.1501e-62.3492e-71.7085e-82.7757e-977.736
RSP GUHHN9.6518e-71.3058e-78.0953e-83.0172e-81.0951e-82.7258e-62.2039e-71.5770e-82.9709e-977.736
RSP GUHHE9.7237e-71.5837e-77.8578e-82.3325e-81.1755e-83.2013e-62.7310e-71.7737e-83.9008e-977.736
TURF FRHHZ8.0325e-78.5123e-85.0920e-82.4201e-81.9730e-81.3182e-61.7287e-72.8699e-81.9242e-988.3140
TURF FRHHN5.3029e-71.1679e-76.6262e-82.7287e-82.0536e-82.2058e-62.0845e-73.1088e-83.0533e-988.3140
TURF FRHHE4.0376e-77.9793e-85.8195e-83.0875e-81.4098e-81.6385e-63.3467e-71.9068e-82.5098e-988.3140
ESCA FRHHZ7.3371e-77.5354e-84.1443e-82.3408e-81.6575e-89.2690e-71.8259e-72.2894e-82.1969e-9100.4147
ESCA FRHHN6.2250e-76.7207e-84.5418e-83.0322e-82.2245e-81.1593e-62.1415e-72.4107e-82.3461e-9100.4147
ESCA FRHHE6.0395e-79.2507e-85.8388e-82.9403e-82.2311e-81.1530e-62.9181e-73.0738e-83.0265e-9100.4147
*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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