MANUAL Location - Area: Frignano , magnitude (ML): 0.6
2025-06-17 10:58:14 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-06-17 14:08:28

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Earthquake info - Manual location
Event - ID :250617105639
Magnitude (ML) :0.6 +/- 0.2
Origin Time :2025-06-17 10:58:14.499 (UTC)
Location : Latitude: 44.482 N, Longitude: 9.919 E
Area :Frignano
Depth (km) :11.02
Distances (km) : 6.5 --- Berceto
10.2 --- Valmozzola
11.9 --- Pontremoli
12.0 --- Borgo Val di Taro
13.5 --- Corniglio
15.6 --- Solignano
16.7 --- Filattiera
17.6 --- Albareto
18.0 --- Monchio delle Corti
18.4 --- Mulazzo
18.9 --- Zeri
19.3 --- Bagnone
19.8 --- Terenzo
20.4 --- Compiano
20.9 --- Calestano
21.1 --- Varsi
21.1 --- Villafranca in Lunigiana
22.3 --- Palanzano
22.4 --- Bardi
22.6 --- Tizzano Val Parma

Quality location estimate: Erh: 1 km, Erz: 0.8 km, Nf: 12, Gap: 154 °, Rms: 0.08


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.
GRAMGU2025-06-17 10:58:17.6500.0070-0.021.562025-06-17 10:58:19.8730.05510.011.4716.7
BVTIT2025-06-17 10:58:18.1060.0200-0.160.672025-06-17 10:58:20.9720.04000.021.4619.1
VRLIT2025-06-17 10:58:19.7240.02000.091.022025-06-17 10:58:23.2830.0400-0.091.1827.1
AULIT2025-06-17 10:58:20.3410.02000.001.552025-06-17 10:58:25.2170.04000.750.0032.6
MSSAIV2025-06-17 10:58:21.6900.01800.051.342025-06-17 10:58:26.6250.1243-0.390.3038.7
PLMAIV2025-06-17 10:58:23.2730.0200-0.081.232025-06-17 10:58:29.5530.0400-0.440.2149.5


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
GRAM GUHH0.592.62e-116.785
BVT ITHN0.711.48e-119.1291
MSSA IVHH0.281.46e-238.7240
PLMA IVHH0.662.09e-249.5186


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.
(°)
GRAM GUHHZ4.4246e-53.6678e-69.3487e-72.9128e-71.4178e-71.9427e-53.8444e-62.1913e-75.8297e-816.785
GRAM GUHHN1.5950e-53.3591e-62.1742e-69.9801e-74.0447e-72.7042e-51.3150e-55.3289e-78.0468e-816.785
GRAM GUHHE1.7504e-53.1563e-61.8446e-64.7295e-71.9820e-74.6717e-59.4242e-62.8258e-76.4997e-816.785
BVT ITHNZ1.1483e-51.1808e-65.2040e-72.6551e-71.3274e-71.4175e-52.5708e-61.7793e-72.0968e-819.1291
BVT ITHNN1.0764e-51.9236e-69.3132e-73.9427e-72.1412e-73.9580e-54.6643e-63.6618e-74.4503e-819.1291
BVT ITHNE1.2443e-52.5153e-61.2401e-63.6745e-71.9473e-72.2460e-54.9270e-62.4632e-75.9438e-819.1291
MSSA IVHHZ1.0960e-61.4578e-76.2998e-83.1501e-82.8040e-84.1651e-62.2053e-74.9931e-83.9626e-938.7240
MSSA IVHHN1.7837e-62.8357e-71.2770e-73.7990e-82.4704e-87.1021e-65.4525e-73.7043e-86.0801e-938.7240
MSSA IVHHE1.3044e-61.9071e-71.0811e-73.4291e-82.9586e-84.9816e-64.3560e-75.0573e-84.1743e-938.7240
PLMA IVHHZ1.7569e-61.9244e-76.8100e-85.9130e-85.6100e-82.6958e-61.7961e-78.6312e-84.2966e-949.5186
PLMA IVHHN3.6997e-62.9274e-71.2776e-71.1077e-79.9276e-84.6666e-64.4884e-71.2366e-78.9923e-949.5186
PLMA IVHHE1.9075e-62.3084e-71.2036e-71.3862e-72.2430e-73.4671e-66.2230e-73.3247e-71.7241e-849.5186
*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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