MANUAL Location - Area: Frignano , magnitude (ML): 1.4
2025-06-25 12:29:37 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-06-26 07:59:59

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Earthquake info - Manual location
Event - ID :250625122916
Magnitude (ML) :1.4 +/- 0.2
Origin Time :2025-06-25 12:29:37.661 (UTC)
Location : Latitude: 44.360 N, Longitude: 10.115 E
Area :Frignano
Depth (km) :17.45
Distances (km) : 6.0 --- Monchio delle Corti
7.5 --- Comano
10.6 --- Palanzano
10.7 --- Bagnone
12.0 --- Licciana Nardi
12.9 --- Collagna
13.1 --- Corniglio
13.4 --- Fivizzano
14.3 --- Ramiseto
14.5 --- Filattiera
15.0 --- Villafranca in Lunigiana
16.7 --- Busana
18.1 --- Casola in Lunigiana
18.5 --- Mulazzo
18.6 --- Pontremoli
18.7 --- Tresana
18.7 --- Ligonchio
19.2 --- Tizzano Val Parma
19.5 --- Giuncugnano
19.6 --- Berceto

Quality location estimate: Erh: 0.8 km, Erz: 0.9 km, Nf: 31, Gap: 90 °, Rms: 0.22


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.
FIVIGU2025-06-25 12:29:41.8520.08030.240.992025-06-25 12:29:44.4700.13030.021.3822.3
GRAMGU2025-06-25 12:29:41.8700.01200.011.872025-06-25 12:29:44.9400.07020.051.5523.7
AULIT2025-06-25 12:29:42.6790.12050.251.07--:---.-----.---.-- 26.7
EQUIGU2025-06-25 12:29:42.6900.0190-0.011.832025-06-25 12:29:46.3900.08420.051.4728.1
ERBMIV2025-06-25 12:29:43.6900.01500.001.802025-06-25 12:29:47.7760.2677-0.600.3830.7
SARMGU2025-06-25 12:29:44.0960.0170-0.001.772025-06-25 12:29:48.7100.1043-0.111.0935.2
VLCMN2025-06-25 12:29:44.3700.01800.380.852025-06-25 12:29:48.8980.16040.291.0335.9
GSCLGU2025-06-25 12:29:45.7800.0401-0.061.432025-06-25 12:29:51.2790.1243-0.570.3541.7
VRLIT2025-06-25 12:29:45.7290.02000.390.852025-06-25 12:29:50.3540.0400-0.630.3242.2
PLMAIV2025-06-25 12:29:45.5000.02210.011.682025-06-25 12:29:51.1800.1324-0.021.2043.9
CARDGU2025-06-25 12:29:47.1660.02000.750.192025-06-25 12:29:53.1400.15140.470.7350.5
CMEIT2025-06-25 12:29:46.9300.02000.260.962025-06-25 12:29:52.6570.0400-0.470.3650.7
MSSAIV2025-06-25 12:29:46.8000.0301-0.021.562025-06-25 12:29:52.9300.1544-0.750.2751.2
BDIIV2025-06-25 12:29:47.7570.06020.590.462025-06-25 12:29:54.1900.16150.241.0953.9
MAIMGU2025-06-25 12:29:48.7250.15060.460.742025-06-25 12:29:55.6400.3157-0.200.8160.7
GORRGU2025-06-25 12:29:51.0790.10040.520.622025-06-25 12:29:59.6300.2286-0.740.3073.0


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
FIVI GUHN1.681.04e+022.3176
ERBM IVEH1.211.96e-130.774
SARM GUEH1.402.76e-135.2131
VLC MNHH1.209.83e-235.9136
GSCL GUHH1.251.17e-141.791
PLMA IVHH1.391.41e-143.9211
CARD GUHH1.501.41e-150.5142
CME ITHN1.792.74e-150.7162
MSSA IVHH1.115.63e-251.2264
MAIM GUHH1.174.06e-260.7149
GORR GUHH1.253.61e-273.0293


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.
(°)
FIVI GUHNZ9.7130e-52.2559e-59.9737e-62.5332e-61.4771e-63.3564e-42.4174e-52.2901e-65.1057e-722.3176
FIVI GUHNN8.7674e-51.8217e-59.8756e-62.2305e-61.4888e-62.1628e-43.0247e-52.6317e-64.4890e-722.3176
FIVI GUHNE7.3108e-51.4137e-57.4277e-62.2467e-61.2990e-62.3518e-43.0176e-52.1333e-63.5478e-722.3176
GRAM GUHHZ1.0560e-41.1925e-57.4417e-62.1458e-61.2606e-61.3814e-44.7292e-51.9001e-63.1915e-723.7345
GRAM GUHHN1.6104e-43.2080e-51.6075e-55.7986e-62.9082e-64.7128e-49.5611e-54.3667e-66.2192e-723.7345
GRAM GUHHE1.3558e-43.3356e-52.5955e-51.0370e-54.7127e-62.0388e-42.2154e-46.7908e-69.1313e-723.7345
EQUI GUHHZ9.6772e-61.3369e-67.5796e-73.4171e-71.4286e-72.1702e-53.6845e-61.9802e-73.3137e-828.1172
EQUI GUHHN1.1367e-51.3323e-68.6965e-73.2510e-71.4767e-73.0262e-53.9582e-62.2052e-73.0489e-828.1172
EQUI GUHHE1.5292e-51.6963e-68.6053e-72.6937e-71.3172e-72.4591e-54.0395e-61.9229e-73.6583e-828.1172
ERBM IVEHZ1.0762e-51.5743e-68.6579e-74.1463e-72.1472e-74.1251e-54.1060e-62.4934e-73.9243e-830.774
ERBM IVEHN1.5261e-52.4439e-61.8492e-64.7794e-72.1232e-75.5465e-51.0235e-53.2905e-76.3093e-830.774
ERBM IVEHE2.4361e-52.8659e-61.4599e-64.2988e-72.1923e-76.5285e-55.3028e-63.6656e-76.6733e-830.774
SARM GUEHZ1.0732e-51.7464e-61.2275e-64.2012e-71.9130e-72.7507e-57.7479e-62.5888e-73.9328e-835.2131
SARM GUEHN1.8524e-52.3587e-61.7766e-67.8108e-73.4857e-72.5844e-51.0649e-54.6708e-76.3737e-835.2131
SARM GUEHE1.4400e-52.8508e-62.2430e-69.8855e-74.2178e-74.2589e-51.4088e-56.3130e-78.9727e-835.2131
VLC MNHHZ6.8974e-61.1825e-65.6280e-71.7329e-77.4962e-81.7162e-52.5634e-61.1770e-72.5364e-835.9136
VLC MNHHN9.7274e-61.6280e-68.2280e-72.7953e-71.3292e-72.4349e-53.8283e-61.9517e-73.4990e-835.9136
VLC MNHHE8.9937e-61.5652e-69.6158e-73.0516e-71.3563e-72.1656e-53.6637e-61.9182e-73.0994e-835.9136
GSCL GUHHZ2.0025e-64.3664e-73.6807e-71.5124e-77.5035e-88.8836e-62.7432e-68.3221e-81.0864e-841.791
GSCL GUHHN3.9631e-61.1180e-61.0269e-64.1617e-71.6486e-71.3192e-56.6814e-62.2798e-72.8505e-841.791
GSCL GUHHE4.3382e-61.3830e-61.0650e-64.5576e-71.7954e-71.1924e-57.7312e-62.4926e-73.6701e-841.791
PLMA IVHHZ1.1675e-51.4543e-67.2846e-72.8478e-71.2002e-71.5791e-54.1661e-61.5355e-73.2671e-843.9211
PLMA IVHHN1.5084e-52.3538e-61.3033e-63.4567e-71.7696e-74.4420e-55.5801e-62.8015e-75.5631e-843.9211
PLMA IVHHE1.2770e-51.9229e-61.2720e-63.7806e-71.6274e-73.5580e-54.8746e-62.5230e-74.2933e-843.9211
CARD GUHHZ1.1563e-51.6851e-66.7547e-71.6437e-78.3896e-84.7016e-52.9912e-61.3839e-73.5234e-850.5142
CARD GUHHN2.1291e-52.5790e-61.1661e-62.6788e-71.4741e-76.1149e-53.7985e-62.6018e-75.6775e-850.5142
CARD GUHHE1.6362e-52.8032e-61.3310e-63.1585e-71.6024e-76.7089e-55.1964e-62.7978e-76.4539e-850.5142
CME ITHNZ1.5753e-52.9826e-62.0295e-67.6591e-75.1054e-75.8438e-59.8857e-69.1732e-77.4049e-850.7162
CME ITHNN2.9767e-54.8086e-62.6245e-66.5312e-73.4201e-79.1164e-51.7344e-54.9937e-71.0435e-750.7162
CME ITHNE3.3391e-54.6767e-62.6264e-68.0856e-73.5963e-71.2874e-41.1824e-54.9871e-79.2493e-850.7162
MSSA IVHHZ3.5924e-66.8548e-73.7932e-71.2493e-76.7589e-81.6118e-52.2529e-69.2543e-81.6151e-851.2264
MSSA IVHHN4.5881e-68.2364e-75.4409e-72.0446e-71.1024e-71.8779e-52.5111e-61.6488e-71.9813e-851.2264
MSSA IVHHE2.8317e-65.8128e-74.3476e-71.6562e-78.3421e-81.0993e-52.1689e-61.0415e-71.6454e-851.2264
BDI IVHHZ3.4638e-65.3759e-73.0885e-78.7088e-84.0283e-89.3170e-61.2272e-66.0241e-81.1284e-853.9131
BDI IVHHN4.5909e-67.9198e-75.3104e-71.8538e-77.3922e-81.5435e-52.5764e-61.0564e-71.8033e-853.9131
BDI IVHHE4.9122e-68.3532e-74.7296e-71.3838e-75.9105e-81.7535e-52.5219e-68.8554e-81.8305e-853.9131
MAIM GUHHZ1.9007e-63.1400e-71.9500e-78.1731e-83.0477e-86.6731e-61.1172e-64.4343e-86.7295e-960.7149
MAIM GUHHN3.6226e-66.1734e-73.4619e-71.6075e-77.1736e-81.1106e-51.8521e-68.0600e-81.3603e-860.7149
MAIM GUHHE2.9192e-65.1353e-73.6062e-71.6508e-79.0892e-81.0144e-51.8876e-61.1817e-71.2841e-860.7149
GORR GUHHZ1.6053e-62.9298e-72.0432e-78.7462e-83.7329e-86.1302e-69.4297e-75.5043e-86.6772e-973.0293
GORR GUHHN1.8376e-64.2666e-73.3858e-71.1531e-75.1721e-86.8255e-62.0766e-67.3931e-81.0945e-873.0293
GORR GUHHE1.9335e-63.7817e-72.4787e-79.9526e-84.2961e-89.4513e-61.0569e-65.9456e-88.3077e-973.0293
*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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