MANUAL Location - Area: Alpi Retiche , magnitude (ML): 0.7
2025-07-04 16:40:33 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-07-05 08:18:20

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Earthquake info - Manual location
Event - ID :250704163904
Magnitude (ML) :0.7 +/- 0.0
Origin Time :2025-07-04 16:40:33.433 (UTC)
Location : Latitude: 46.497 N, Longitude: 10.432 E
Area :Alpi Retiche
Depth (km) :6.62
Distances (km) : 4.2 --- Valfurva
5.5 --- Bormio
9.2 --- Valdisotto
10.6 --- Valdidentro
14.4 --- Stelvio
16.8 --- Tubre
18.3 --- Prato Allo Stelvio
20.1 --- Sondalo
21.5 --- Glorenza
22.1 --- Sluderno
23.2 --- Livigno
23.2 --- Malles Venosta
24.6 --- Lasa
25.0 --- Grosio
25.7 --- Peio
27.0 --- Ponte di Legno
27.3 --- Grosotto
27.6 --- Vione
27.6 --- Temu
28.0 --- Martello

Quality location estimate: Erh: 2.4 km, Erz: 1.3 km, Nf: 14, Gap: 192 °, Rms: 0.15


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.
BRMOIV2025-07-04 16:40:35.5000.00700.031.822025-07-04 16:40:36.8490.0240-0.021.859.5
BERNICH2025-07-04 16:40:39.9550.0200-0.011.832025-07-04 16:40:44.5900.09920.021.3933.3
DAVOXCH2025-07-04 16:40:42.5650.0271-0.910.182025-07-04 16:40:50.0870.1544-0.670.3453.3
GAGGST2025-07-04 16:40:44.7840.0803-0.001.462025-07-04 16:40:52.5440.1604-0.091.0861.6
VDLCH2025-07-04 16:40:46.2600.0422-0.260.712025-07-04 16:40:55.8650.2005-0.010.9875.7
TUEMN2025-07-04 16:40:47.9660.08030.111.152025-07-04 16:40:58.9910.16040.880.0583.3
DOSSST2025-07-04 16:40:49.2700.2249-0.570.472025-07-04 16:41:01.4030.4479-0.040.7090.2


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
BRMO IVHH0.755.69e-19.5242
VDL CHHH0.741.05e-275.7269


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.
(°)
BRMO IVHHZ1.0514e-41.3652e-55.2153e-61.8547e-61.0733e-61.4958e-42.1083e-51.7225e-62.6847e-79.5242
BRMO IVHHN5.9180e-58.0314e-63.4780e-61.1880e-67.1579e-71.3029e-41.8398e-51.1508e-61.7596e-79.5242
BRMO IVHHE4.7859e-56.4316e-63.4818e-61.5868e-68.3351e-75.4296e-52.2010e-51.3424e-62.1627e-79.5242
DAVOXCHHHZ5.7177e-69.3266e-75.6693e-71.6371e-76.1762e-81.7360e-52.9225e-61.0849e-72.1679e-853.3307
DAVOXCHHHN8.0961e-61.0680e-67.2940e-73.8565e-71.5608e-72.2424e-52.4069e-62.2265e-73.4851e-853.3307
DAVOXCHHHE9.1747e-61.8167e-61.1158e-63.0726e-71.4463e-72.4466e-54.1806e-62.1699e-74.0687e-853.3307
VDL CHHHZ1.2050e-61.7425e-71.1263e-74.1947e-81.9195e-82.5747e-65.3654e-73.0665e-84.1498e-975.7269
VDL CHHHN1.5799e-61.6806e-71.1339e-72.5417e-81.2850e-82.3178e-63.6257e-71.8831e-83.7622e-975.7269
VDL CHHHE1.1273e-61.1330e-77.5134e-81.9773e-89.3293e-91.2773e-64.0508e-71.4194e-82.6217e-975.7269
*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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