MANUAL Location - Area: Val di Taro , magnitude (ML): 1.4
2025-08-30 08:23:05 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-08-30 10:06:40

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Earthquake info - Manual location
Event - ID :250830082242
Magnitude (ML) :1.4 +/- 0.2
Origin Time :2025-08-30 08:23:05.037 (UTC)
Location : Latitude: 44.504 N, Longitude: 9.754 E
Area :Val di Taro
Depth (km) :3.55
Distances (km) : 2.0 --- Borgo Val di Taro
7.3 --- Compiano
7.4 --- Albareto
9.9 --- Bedonia
10.5 --- Tornolo
12.5 --- Valmozzola
14.3 --- Bardi
16.8 --- Zeri
17.3 --- Pontremoli
18.7 --- Berceto
19.0 --- Varese Ligure
19.2 --- Varsi
21.7 --- Solignano
23.0 --- Zignago
23.4 --- Mulazzo
24.0 --- Bore
24.0 --- Filattiera
24.2 --- Sesta Godano
24.6 --- Santo Stefano d Aveto
24.7 --- Morfasso

Quality location estimate: Erh: 0.5 km, Erz: 0.6 km, Nf: 32, Gap: 111 °, 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.
BVTIT2025-08-30 08:23:06.5570.0200-0.022.192025-08-30 08:23:07.6010.0400-0.052.025.3
VRLIT2025-08-30 08:23:08.4220.02000.041.922025-08-30 08:23:10.7840.0400-0.022.0816.1
GRAMGU2025-08-30 08:23:10.0600.01100.022.072025-08-30 08:23:13.8350.09020.460.5625.2
MSSAIV2025-08-30 08:23:10.6100.01500.022.052025-08-30 08:23:14.6300.0842-0.101.6628.5
CARIT2025-08-30 08:23:11.2870.02000.350.492025-08-30 08:23:15.0740.0400-0.151.4830.8
AULIT2025-08-30 08:23:10.4830.0200-1.470.052025-08-30 08:23:16.5180.0400-0.201.3037.4
GORRGU2025-08-30 08:23:12.4800.0211-0.042.002025-08-30 08:23:18.0300.1163-0.320.9538.5
FIVIGU2025-08-30 08:23:12.9680.02000.210.612025-08-30 08:23:18.0260.04000.051.5542.0
EQUIGU2025-08-30 08:23:13.8150.0200-0.360.712025-08-30 08:23:20.0740.1564-0.370.8449.4
PLMAIV2025-08-30 08:23:15.1210.02000.690.412025-08-30 08:23:20.4100.2356-0.830.1651.3
SARMGU2025-08-30 08:23:16.4390.0200-0.201.322025-08-30 08:23:24.5300.2446-0.241.0362.7
VLCMN2025-08-30 08:23:17.6030.02001.140.042025-08-30 08:23:24.9100.19850.460.7063.4
RNCAGU2025-08-30 08:23:16.8700.12050.610.502025-08-30 08:23:25.0660.04000.670.4563.9
CMEIT2025-08-30 08:23:18.3120.0200-0.290.982025-08-30 08:23:26.8650.0400-1.760.0575.2
CARDGU2025-08-30 08:23:21.1860.12052.250.022025-08-30 08:23:29.0950.04000.091.2578.8
PCPGU2025-08-30 08:23:21.9220.02000.570.532025-08-30 08:23:34.7690.04001.750.0396.0


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
BVT ITHN1.741.48e+15.3343
GRAM GUHH1.194.85e-125.293
MSSA IVHH1.403.45e-128.5222
CAR ITHN1.695.83e-130.8200
GORR GUHH1.201.21e-138.5288
FIVI GUHN1.411.66e-142.0135
EQUI GUHH0.974.34e-249.4140
PLMA IVHH1.491.32e-151.3171
SARM GUEH1.306.80e-262.7124
VLC MNHH1.213.19e-263.4127
RNCA GUHH1.224.58e-263.9267
CME ITHN1.719.80e-275.2144
CARD GUHH1.739.30e-278.8132
PCP GUHH1.131.61e-296.0273


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.
(°)
BVT ITHNZ8.6673e-46.7984e-52.8317e-52.0577e-57.6542e-67.9972e-41.6000e-49.5901e-61.0890e-65.3343
BVT ITHNN8.6355e-42.0377e-49.8785e-54.4734e-52.9397e-51.7913e-34.8880e-44.5117e-56.4655e-65.3343
BVT ITHNE1.0681e-32.1702e-49.0095e-53.3251e-52.0037e-53.3123e-33.3458e-43.0000e-55.1868e-65.3343
GRAM GUHHZ1.2450e-52.4192e-61.8978e-65.4742e-72.5871e-74.1920e-56.8204e-63.9969e-76.7181e-825.293
GRAM GUHHN2.0877e-56.0617e-64.3870e-61.7401e-66.4283e-75.0103e-53.2284e-59.1487e-71.5839e-725.293
GRAM GUHHE2.8966e-56.8159e-64.4319e-61.4401e-66.0920e-76.1174e-52.1687e-59.1337e-71.8002e-725.293
MSSA IVHHZ1.1680e-52.0986e-61.5209e-68.1491e-73.2795e-74.4800e-51.1630e-53.7451e-75.6363e-828.5222
MSSA IVHHN1.9174e-54.1444e-62.7164e-67.5785e-74.2365e-75.8593e-51.1394e-55.8520e-71.0224e-728.5222
MSSA IVHHE1.4401e-53.2073e-62.7442e-68.5814e-75.0765e-75.8902e-51.9942e-57.4294e-71.0956e-728.5222
CAR ITHNZ1.3174e-52.1990e-61.7993e-67.8215e-74.0183e-74.5569e-58.5643e-65.2598e-76.1733e-830.8200
CAR ITHNN4.1721e-58.3613e-65.0672e-61.3236e-67.1653e-71.2914e-42.0907e-51.2376e-62.2047e-730.8200
CAR ITHNE3.8297e-58.8317e-64.7777e-61.2133e-67.0584e-79.2086e-51.6286e-59.1269e-71.9065e-730.8200
GORR GUHHZ3.2266e-67.8746e-76.8024e-72.5354e-71.1912e-71.0857e-54.4084e-61.6608e-71.7507e-838.5288
GORR GUHHN4.2049e-61.3828e-69.9707e-72.8935e-71.6960e-71.1580e-55.6764e-62.4265e-73.4248e-838.5288
GORR GUHHE4.6486e-61.0117e-68.9839e-73.0321e-71.4255e-71.3585e-53.6301e-61.8166e-72.5810e-838.5288
FIVI GUHNZ1.1365e-51.9372e-61.0256e-64.4550e-71.9097e-74.8923e-53.5166e-62.6231e-74.8573e-842.0135
FIVI GUHNN8.0863e-61.8627e-61.3201e-66.2199e-73.8296e-72.1300e-54.2588e-65.4740e-76.6422e-842.0135
FIVI GUHNE8.0735e-62.0938e-61.3194e-65.6176e-72.3991e-73.0393e-54.5253e-63.4061e-75.3169e-842.0135
EQUI GUHHZ2.5797e-63.5919e-73.5598e-71.4832e-76.1948e-85.9849e-61.6093e-68.1409e-89.5249e-949.4140
EQUI GUHHN3.5126e-66.1644e-73.9785e-71.5382e-77.9383e-81.0522e-51.8061e-61.2047e-71.7624e-849.4140
EQUI GUHHE4.5342e-67.7732e-74.3596e-71.4986e-77.7615e-81.4591e-51.6548e-61.1751e-71.7831e-849.4140
PLMA IVHHZ1.3830e-51.5164e-66.2592e-72.8373e-71.1725e-71.4574e-53.8747e-61.8094e-72.9971e-851.3171
PLMA IVHHN2.2142e-52.6710e-61.2572e-65.3454e-72.1658e-77.7068e-53.3645e-63.4994e-75.6579e-851.3171
PLMA IVHHE1.6750e-52.6908e-61.0216e-63.5741e-71.8698e-76.3568e-53.8493e-63.2128e-75.3017e-851.3171
SARM GUEHZ1.7446e-63.1916e-72.2649e-79.0337e-83.3988e-85.5092e-69.7862e-74.7816e-88.2348e-962.7124
SARM GUEHN2.6287e-67.4656e-75.7358e-71.9968e-77.9511e-87.4123e-63.7005e-61.0943e-72.0009e-862.7124
SARM GUEHE1.4638e-64.3529e-73.7693e-71.6305e-75.9715e-84.9524e-63.4280e-67.2001e-81.2940e-862.7124
VLC MNHHZ1.8507e-62.7489e-71.7151e-77.5709e-84.1575e-83.8605e-67.9435e-74.7005e-88.1601e-963.4127
VLC MNHHN3.1177e-64.5174e-72.3395e-78.2302e-84.0716e-88.5506e-69.6104e-75.9906e-88.8876e-963.4127
VLC MNHHE2.6561e-63.5290e-72.1497e-71.0016e-71.3893e-75.3026e-69.6096e-72.9978e-73.1387e-863.4127
RNCA GUHHZ3.8552e-64.5991e-72.4780e-71.2658e-76.5386e-86.3574e-69.8957e-78.4232e-81.1589e-863.9267
RNCA GUHHN3.0598e-67.0835e-73.8812e-71.6387e-77.1269e-85.8514e-61.9887e-68.8894e-81.3498e-863.9267
RNCA GUHHE7.5917e-67.2140e-74.1207e-71.6661e-77.2632e-81.1839e-51.7148e-61.0476e-71.5279e-863.9267
CME ITHNZ3.9878e-68.4437e-75.8789e-72.9703e-72.0712e-71.3238e-52.3116e-62.5794e-72.2404e-875.2144
CME ITHNN6.4645e-61.2964e-69.7746e-74.0014e-72.1249e-72.1936e-54.5076e-63.3068e-73.3045e-875.2144
CME ITHNE8.4755e-61.4477e-68.8136e-73.3370e-72.1263e-72.7258e-53.7229e-63.2709e-73.8688e-875.2144
CARD GUHHZ2.9087e-64.9985e-73.4861e-71.1768e-76.7275e-81.0994e-51.6116e-68.7383e-81.2745e-878.8132
CARD GUHHN6.7739e-61.5649e-67.8252e-72.3034e-71.4595e-72.2935e-52.4318e-62.5175e-74.0552e-878.8132
CARD GUHHE6.2906e-61.1888e-67.5639e-72.2803e-71.0159e-71.7422e-52.8266e-61.4702e-72.5933e-878.8132
PCP GUHHZ5.3572e-71.1316e-71.1886e-77.8199e-83.1134e-81.7048e-67.8343e-74.5295e-83.8192e-996.0273
PCP GUHHN5.2799e-71.4108e-71.4268e-77.1630e-84.5703e-81.5265e-67.2305e-75.7514e-84.8625e-996.0273
PCP GUHHE6.6502e-71.6181e-71.2357e-76.4055e-83.9424e-81.9835e-66.0759e-74.4766e-84.7774e-996.0273
*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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