MANUAL Location - Area: Alpi Cozie , magnitude (ML): -0.1
2025-07-13 17:20:09 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-07-14 08:00:50

20 km
Lat : Lon
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Earthquake info - Manual location
Event - ID :250713171843
Magnitude (ML) :-0.1 +/- 0.2
Origin Time :2025-07-13 17:20:09.438 (UTC)
Location : Latitude: 44.546 N, Longitude: 6.879 E
Area :Alpi Cozie
Depth (km) :10.79
Distances (km) : 11.6 --- Bellino
11.8 --- Acceglio
14.6 --- Pontechianale
15.6 --- Prazzo
15.9 --- Casteldelfino
16.7 --- Elva
17.2 --- Argentera
18.9 --- Canosio
19.6 --- Marmora
20.1 --- Stroppo
24.3 --- Macra
24.8 --- Celle di Macra
24.9 --- Sampeyre
25.5 --- Pietraporzio
27.8 --- Sambuco
27.9 --- Crissolo
28.6 --- Oncino
29.5 --- Ostana
30.4 --- Castelmagno
30.5 --- San Damiano Macra

Quality location estimate: Erh: 0.7 km, Erz: 0.8 km, Nf: 14, Gap: 99 °, Rms: 0.14


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.
SURFFR2025-07-13 17:20:11.2000.0040-1.350.022025-07-13 17:20:11.9760.0250-2.870.0014.0
PZZGU2025-07-13 17:20:14.0100.0120-0.012.152025-07-13 17:20:16.9150.0742-0.430.2722.8
VINDIV2025-07-13 17:20:15.3400.0200-1.110.022025-07-13 17:20:21.4050.04000.041.6436.9
OGAGFR2025-07-13 17:20:16.9010.02000.022.012025-07-13 17:20:22.0080.0400-0.181.1539.8
ISOFR2025-07-13 17:20:17.6340.02000.001.992025-07-13 17:20:23.0780.0400-0.131.3744.1
RRLGU2025-07-13 17:20:17.8510.02000.061.752025-07-13 17:20:24.3470.04000.640.2044.2
BHBGU2025-07-13 17:20:18.3480.02000.500.202025-07-13 17:20:23.5600.1464-0.151.2345.7


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
PZZ GUHH-0.301.76e-222.8103
OGAG FRHH-0.145.22e-339.8315
ISO FRHH-0.352.63e-344.1161
RRL GUHH-0.013.86e-344.2350
BHB GUHH0.126.54e-345.743


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.
(°)
PZZ GUHHZ2.0160e-62.8053e-71.2929e-72.8530e-81.5832e-84.8376e-66.6201e-72.2754e-85.2919e-922.8103
PZZ GUHHN2.0636e-62.8806e-71.3336e-74.4540e-83.2105e-84.0049e-65.0929e-75.6019e-87.7257e-922.8103
PZZ GUHHE2.8536e-63.9774e-71.5860e-76.1780e-84.2424e-83.1282e-68.3208e-76.3155e-89.8350e-922.8103
OGAG FRHHZ1.7175e-74.9519e-83.4609e-82.9861e-82.6381e-88.8325e-71.9551e-75.2571e-84.2960e-939.8315
OGAG FRHHN1.4773e-74.4634e-83.0910e-82.1231e-83.2498e-85.3956e-71.3971e-76.6446e-83.9042e-939.8315
OGAG FRHHE1.6173e-74.2864e-83.6338e-82.7045e-81.2514e-85.2664e-71.6169e-71.5965e-81.5449e-939.8315
ISO FRHHZ1.7311e-72.1781e-81.3597e-85.9355e-94.7735e-94.2254e-76.7052e-86.5096e-97.2579e-1044.1161
ISO FRHHN1.6980e-72.6727e-81.5039e-81.0509e-81.4667e-83.5949e-78.5126e-82.4242e-83.8876e-944.1161
ISO FRHHE1.9538e-73.7340e-82.1019e-87.8760e-95.2851e-93.1555e-71.3779e-77.8084e-91.0263e-944.1161
RRL GUHHZ1.5958e-72.0325e-81.1273e-87.5231e-95.9503e-92.8629e-75.3538e-89.1473e-98.3446e-1044.2350
RRL GUHHN1.4532e-73.3612e-82.0165e-81.7604e-82.2015e-84.7715e-77.7994e-83.6153e-82.9054e-944.2350
RRL GUHHE2.0352e-73.3027e-81.8683e-88.9682e-96.9796e-97.2966e-78.8047e-81.1103e-89.8095e-1044.2350
BHB GUHHZ3.2169e-75.9948e-84.0328e-81.4029e-81.7645e-88.9610e-71.5186e-74.1934e-81.7177e-945.743
BHB GUHHN3.8564e-76.3562e-84.8140e-81.7575e-81.3112e-87.2198e-72.2883e-73.0170e-81.9294e-945.743
BHB GUHHE3.1569e-74.4245e-83.2616e-81.6635e-81.4848e-86.9639e-71.3851e-73.4106e-81.3778e-945.743
*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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