MANUAL Location - Area: Alpi Cozie , magnitude (ML): 0.4
2025-06-25 06:37:51 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-06-25 07:56:16

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Earthquake info - Manual location
Event - ID :250625063624
Magnitude (ML) :0.4 +/- 0.1
Origin Time :2025-06-25 06:37:51.978 (UTC)
Location : Latitude: 44.741 N, Longitude: 6.670 E
Area :Alpi Cozie
Depth (km) :1.04
Distances (km) : 23.0 --- Claviere
25.5 --- Cesana Torinese
26.8 --- Sauze di Cesana
29.2 --- Sestriere
31.2 --- Pontechianale
32.7 --- Bellino
34.1 --- Prali
35.0 --- Oulx
35.3 --- Sauze d Oulx
35.8 --- Casteldelfino
36.2 --- Bobbio Pellice
37.0 --- Pragelato
37.4 --- Salza di Pinerolo
37.6 --- Bardonecchia
38.8 --- Crissolo
38.9 --- Acceglio
39.0 --- Massello
39.1 --- Villar Pellice
40.0 --- Elva
40.6 --- Salbertrand

Quality location estimate: Erh: 0.5 km, Erz: 0.5 km, Nf: 9, Gap: 136 °, Rms: 0.06


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.
OGAGFR2025-06-25 06:37:54.6900.01100.110.792025-06-25 06:37:56.3600.0330-0.031.2211.7
RRLGU2025-06-25 06:37:56.9460.01100.021.262025-06-25 06:38:00.1900.0651-0.060.9722.3
SURFFR2025-06-25 06:37:58.2700.0160-0.061.072025-06-25 06:38:02.8400.1043-0.000.9231.1
PZZGU2025-06-25 06:38:00.6940.02210.031.152025-06-25 06:38:06.8700.14240.130.6544.0
BHBGU2025-06-25 06:38:01.6110.10040.010.97--:---.-----.---.-- 48.0


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
OGAG FRHH0.341.50e-111.7297
RRL GUHH0.282.80e-222.325
PZZ GUHH0.573.73e-244.0126


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 FRHHZ5.7301e-61.5545e-69.1041e-74.2264e-72.0420e-71.3826e-55.1477e-63.0439e-74.2295e-811.7297
OGAG FRHHN6.6684e-61.1172e-67.7891e-74.2960e-73.2755e-72.1556e-52.5934e-64.8864e-72.8632e-811.7297
OGAG FRHHE9.7782e-61.7483e-61.1299e-65.9375e-72.8784e-71.1781e-56.1370e-63.5505e-74.5205e-811.7297
RRL GUHHZ2.0431e-62.7926e-71.4788e-78.0316e-83.2788e-85.4927e-65.9460e-74.7950e-87.8330e-922.325
RRL GUHHN2.7591e-63.9716e-72.3798e-71.0843e-74.0066e-85.3480e-61.1571e-65.0966e-89.5067e-922.325
RRL GUHHE2.5534e-63.7534e-72.3617e-71.1770e-74.2715e-86.8372e-69.3999e-74.9506e-87.9130e-922.325
PZZ GUHHZ2.1821e-63.8718e-72.5715e-75.7743e-83.1490e-84.8213e-61.2137e-64.8699e-88.0246e-944.0126
PZZ GUHHN2.7772e-64.8431e-73.2233e-77.5147e-83.7841e-86.7925e-61.5006e-66.5467e-81.2365e-844.0126
PZZ GUHHE2.5735e-65.2851e-73.9153e-78.6424e-84.1155e-88.8536e-61.8438e-66.3058e-81.2431e-844.0126
*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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