MANUAL Location - Area: Alpi Graie , magnitude (ML): 0.1
2025-06-02 12:11:47 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-06-03 07:20:44

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Earthquake info - Manual location
Event - ID :250602121054
Magnitude (ML) :0.1 +/- 0.2
Origin Time :2025-06-02 12:11:47.304 (UTC)
Location : Latitude: 45.756 N, Longitude: 7.358 E
Area :Alpi Graie
Depth (km) :2.02
Distances (km) : 0.9 --- Saint-Christophe
2.9 --- Pollein
3.9 --- Aosta
4.6 --- Brissogne
4.8 --- Charvensod
4.8 --- Quart
4.9 --- Roisan
5.7 --- Gignod
6.7 --- Gressan
7.5 --- Saint-Marcel
7.9 --- Jovencan
8.2 --- Valpelline
8.2 --- Doues
8.5 --- Nus
8.8 --- Sarre
8.9 --- Allein
10.6 --- Aymavilles
11.0 --- Oyace
11.1 --- Fenis
11.2 --- Saint-Pierre

Quality location estimate: Erh: 1.2 km, Erz: 1.9 km, Nf: 8, Gap: 196 °, Rms: 0.07


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.
REMYGU2025-06-02 12:11:51.6420.0200-0.011.552025-06-02 12:11:54.5130.0400-0.031.4018.7
MRGEIV2025-06-02 12:11:52.5760.02000.130.952025-06-02 12:11:55.8570.04000.091.3823.4
CIROGU2025-06-02 12:11:52.1020.0200-0.890.002025-06-02 12:11:55.1120.0400-1.650.0024.0
LSDGU2025-06-02 12:11:55.0000.02000.031.592025-06-02 12:11:59.9500.0400-0.061.1337.5


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
REMY GUHH-0.062.63e-218.7300
MRGE IVHH0.021.77e-223.4274
CIRO GUHH0.432.73e-224.0136
LSD GUHH0.171.21e-237.5208


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.
(°)
REMY GUHHZ4.0110e-64.7637e-71.3855e-74.1703e-81.9672e-85.1581e-66.9462e-73.2048e-88.4793e-918.7300
REMY GUHHN6.5193e-67.6582e-72.2483e-76.0685e-83.0694e-89.6733e-67.3532e-75.1682e-81.5545e-818.7300
REMY GUHHE3.9377e-64.4805e-71.8023e-71.0009e-75.6290e-81.1642e-56.1717e-78.1636e-89.5247e-918.7300
MRGE IVHHZ2.2131e-62.0151e-76.6173e-83.6686e-81.3981e-81.6750e-62.9687e-71.9236e-84.0176e-923.4274
MRGE IVHHN5.0579e-65.2731e-71.0937e-74.7705e-82.5200e-87.6032e-63.8667e-74.6123e-81.0118e-823.4274
MRGE IVHHE4.6816e-63.3367e-77.1136e-83.9913e-82.0425e-84.5967e-63.0866e-72.4593e-87.4598e-923.4274
CIRO GUHHZ5.5059e-66.1497e-71.5350e-74.9737e-82.6825e-88.1703e-66.8412e-74.4350e-81.0330e-824.0136
CIRO GUHHN1.0464e-51.0561e-61.7004e-76.0632e-83.7440e-89.3927e-69.0658e-77.7141e-81.7631e-824.0136
CIRO GUHHE1.1585e-57.2960e-71.4774e-75.1250e-82.4339e-87.7766e-65.5114e-74.8248e-81.2578e-824.0136
LSD GUHHZ2.9380e-63.0084e-78.4616e-82.3688e-81.2216e-85.0375e-62.9179e-72.2611e-85.8718e-937.5208
LSD GUHHN3.0693e-63.3132e-78.9071e-82.8249e-81.7154e-85.5752e-64.3206e-73.4196e-87.0702e-937.5208
LSD GUHHE3.2264e-62.8888e-76.9243e-82.1203e-81.1220e-82.9050e-63.4144e-72.1948e-85.1833e-937.5208
*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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