MANUAL Location - Area: Lunigiana , magnitude (ML): 0.7
2025-07-06 03:05:10 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-07-06 08:50:35

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Earthquake info - Manual location
Event - ID :250706030446
Magnitude (ML) :0.7 +/- 0.2
Origin Time :2025-07-06 03:05:10.394 (UTC)
Location : Latitude: 44.319 N, Longitude: 9.809 E
Area :Lunigiana
Depth (km) :5.02
Distances (km) : 5.2 --- Zeri
6.2 --- Zignago
6.5 --- Mulazzo
8.4 --- Rocchetta di Vara
8.7 --- Calice al Cornoviglio
8.9 --- Pontremoli
10.3 --- Filattiera
11.0 --- Sesta Godano
11.2 --- Brugnato
11.7 --- Villafranca in Lunigiana
12.5 --- Borghetto di Vara
12.8 --- Carro
13.8 --- Tresana
14.0 --- Beverino
14.8 --- Carrodano
14.8 --- Bagnone
16.0 --- Bolano
16.2 --- Podenzana
16.8 --- Albareto
17.0 --- Pignone

Quality location estimate: Erh: 1.2 km, Erz: 2.4 km, Nf: 23, Gap: 69 °, Rms: 0.21


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.
VRLIT2025-07-06 03:05:14.0240.0602-0.011.69--:---.-----.---.-- 16.9
CARIT2025-07-06 03:05:14.0470.04010.121.41--:---.-----.---.-- 17.7
AULIT2025-07-06 03:05:14.7110.08030.710.28--:---.-----.---.-- 18.6
MSSAIV2025-07-06 03:05:15.1200.01200.011.772025-07-06 03:05:18.0400.0671-0.600.3123.9
BVTIT2025-07-06 03:05:15.5350.0602-0.021.64--:---.-----.---.-- 24.6
GRAMGU2025-07-06 03:05:16.4200.01600.640.33--:---.-----.---.-- 28.5
PLMAIV2025-07-06 03:05:16.1200.0150-0.011.722025-07-06 03:05:20.2960.0842-0.091.3030.5
EQUIGU2025-07-06 03:05:16.9100.01700.201.052025-07-06 03:05:20.9150.3728-0.270.8232.7
SARMGU2025-07-06 03:05:19.9530.12050.201.182025-07-06 03:05:26.2940.2757-0.330.7849.9
GORRGU2025-07-06 03:05:20.0900.12050.241.052025-07-06 03:05:27.0030.2446-0.190.9752.3
GSCLGU2025-07-06 03:05:21.9980.1004-0.300.682025-07-06 03:05:31.0610.5519-0.050.7562.3
RNCAGU2025-07-06 03:05:23.0980.12050.460.532025-07-06 03:05:30.7800.4989-0.770.3870.4
POPMGU2025-07-06 03:05:24.9570.15060.171.182025-07-06 03:05:35.3190.2847-0.230.8681.7
PIIIV2025-07-06 03:05:25.8600.04420.091.412025-07-06 03:05:37.1000.2607-0.200.8987.8


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
MSSA IVHH0.364.34e-223.9269
PLMA IVHH0.951.05e-130.5173
EQUI GUHH0.251.87e-232.7122
SARM GUEH0.773.28e-249.9107
GORR GUHH0.792.57e-252.3308
GSCL GUHH0.842.02e-262.386
RNCA GUHH0.901.77e-270.4284
POPM GUHH0.741.78e-281.7112
PII IVHH0.869.79e-387.8139


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.
(°)
MSSA IVHHZ3.9710e-65.1685e-72.5270e-78.4664e-85.3411e-88.3039e-61.2604e-68.9671e-81.5117e-823.9269
MSSA IVHHN7.4639e-67.7514e-73.1581e-71.4562e-75.4018e-81.4893e-51.3703e-68.3810e-81.9404e-823.9269
MSSA IVHHE5.2867e-65.3447e-73.0436e-71.0843e-75.5566e-89.1129e-61.4622e-68.0092e-81.4363e-823.9269
PLMA IVHHZ1.0693e-51.1420e-63.6695e-79.6917e-86.0721e-81.5475e-51.4488e-61.2401e-72.2624e-830.5173
PLMA IVHHN1.9733e-52.4698e-68.3845e-71.7887e-71.1732e-74.6216e-52.3163e-62.2446e-75.0514e-830.5173
PLMA IVHHE1.9571e-52.5693e-66.3993e-71.9293e-71.3793e-73.8609e-52.5607e-62.4927e-75.2806e-830.5173
EQUI GUHHZ2.8987e-62.6716e-79.9514e-83.3429e-82.1051e-85.8972e-63.1476e-73.3552e-86.7588e-932.7122
EQUI GUHHN4.5776e-64.1128e-71.3695e-75.7026e-82.7604e-86.0361e-67.2274e-74.0014e-88.1190e-932.7122
EQUI GUHHE3.5402e-64.6001e-71.2418e-74.7598e-84.9560e-87.5151e-65.2471e-71.0023e-78.0409e-932.7122
SARM GUEHZ8.8022e-71.3173e-79.0389e-84.5428e-81.8498e-82.0658e-65.1735e-72.4006e-83.3297e-949.9107
SARM GUEHN1.4772e-63.7921e-72.4887e-71.1734e-75.1995e-82.4512e-61.3003e-66.9990e-88.2248e-949.9107
SARM GUEHE1.5460e-63.0689e-72.1996e-71.2260e-75.6430e-82.0106e-61.4093e-67.9415e-89.6820e-949.9107
GORR GUHHZ1.3442e-62.8204e-71.7306e-76.6717e-82.7892e-83.4328e-68.3791e-74.0575e-86.5473e-952.3308
GORR GUHHN2.1950e-63.8699e-72.4535e-79.9195e-83.8449e-85.8999e-61.0952e-65.2583e-88.8523e-952.3308
GORR GUHHE1.4626e-62.6836e-71.6697e-77.1325e-83.0905e-84.4613e-68.7435e-73.4796e-85.9243e-952.3308
GSCL GUHHZ3.8483e-79.3659e-86.6330e-82.2234e-81.2332e-81.0517e-63.8288e-71.4998e-82.7589e-962.386
GSCL GUHHN5.4424e-71.2602e-71.4165e-76.8224e-85.8332e-81.4293e-65.5592e-71.0623e-77.0055e-962.386
GSCL GUHHE8.2685e-72.5729e-71.7573e-76.1272e-82.9678e-82.1380e-69.2406e-74.5774e-86.6952e-962.386
RNCA GUHHZ1.3746e-61.6315e-78.4288e-82.7404e-81.4878e-83.0182e-64.1344e-71.8272e-83.5944e-970.4284
RNCA GUHHN1.0535e-61.8508e-79.6646e-82.9241e-81.6031e-82.2847e-64.2747e-72.3008e-84.0985e-970.4284
RNCA GUHHE1.9698e-62.9373e-71.5613e-75.1089e-82.3772e-85.0812e-64.4997e-73.2691e-86.4347e-970.4284
POPM GUHHZ1.2624e-61.6257e-78.6594e-82.4184e-81.3126e-83.7097e-63.1200e-71.7570e-83.8261e-981.7112
POPM GUHHN1.4218e-62.7001e-71.8210e-74.7298e-82.0927e-84.2746e-65.6013e-73.1232e-86.3492e-981.7112
POPM GUHHE1.3691e-62.6831e-71.5894e-73.8210e-81.8588e-83.5725e-65.9059e-72.8401e-85.6133e-981.7112
PII IVHHZ5.0368e-71.0358e-77.6970e-82.5866e-81.1654e-81.4383e-63.8264e-71.6605e-83.0850e-987.8139
PII IVHHN5.5299e-71.0833e-76.6151e-82.3813e-88.5867e-91.3559e-63.2556e-71.2506e-82.3868e-987.8139
PII IVHHE6.0256e-79.4742e-87.7030e-83.0570e-81.3028e-81.7275e-64.8987e-72.1114e-83.0142e-987.8139
*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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