MANUAL Location - Area: Garfagnana , magnitude (ML): 0.6
2025-04-25 08:36:48 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-04-28 06:50:47

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Earthquake info - Manual location
Event - ID :250425083602
Magnitude (ML) :0.6 +/- 0.2
Origin Time :2025-04-25 08:36:48.6 (UTC)
Location : Latitude: 44.199 N, Longitude: 10.277 E
Area :Garfagnana
Depth (km) :11.02
Distances (km) : 2.3 --- Piazza al Serchio
2.8 --- Giuncugnano
3.5 --- Sillano
6.2 --- Minucciano
6.4 --- San Romano in Garfagnana
6.4 --- Camporgiano
8.1 --- Casola in Lunigiana
9.3 --- Vagli Sotto
9.4 --- Careggine
10.5 --- Villa Collemandina
12.0 --- Castiglione di Garfagnana
12.9 --- Fivizzano
13.0 --- Pieve Fosciana
14.2 --- Ligonchio
14.5 --- Castelnuovo di Garfagnana
15.7 --- Comano
16.6 --- Collagna
17.3 --- Fosciandora
17.9 --- Molazzana
18.5 --- Vergemoli

Quality location estimate: Erh: 0.8 km, Erz: 0.6 km, Nf: 28, Gap: 83 °, 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.
VLCMN2025-04-25 08:36:51.4600.00800.031.512025-04-25 08:36:53.1210.1002-0.400.5715.2
EQUIGU2025-04-25 08:36:51.5700.00800.031.542025-04-25 08:36:53.5100.0541-0.171.2415.5
SARMGU2025-04-25 08:36:51.3800.0080-0.350.712025-04-25 08:36:53.0200.0400-1.030.1615.7
FIVIGU2025-04-25 08:36:51.8310.02000.001.672025-04-25 08:36:53.8310.0400-0.310.8217.1
AULIT2025-04-25 08:36:53.7360.02000.260.512025-04-25 08:36:57.0150.04000.021.4326.6
CARDGU2025-04-25 08:36:53.8500.04820.300.552025-04-25 08:36:57.6500.08320.420.3727.7
CMEIT2025-04-25 08:36:54.4580.02000.420.312025-04-25 08:36:57.9480.0400-0.121.4129.5
BDIIV2025-04-25 08:36:54.4300.0160-0.071.612025-04-25 08:36:58.6900.0902-0.191.2332.0
GSCLGU2025-04-25 08:36:54.0740.0200-1.060.162025-04-25 08:36:58.4100.0772-1.540.0032.2
MAIMGU2025-04-25 08:36:55.4670.0200-0.011.622025-04-25 08:37:00.4300.2426-0.161.0337.8
GRAMGU2025-04-25 08:36:55.4500.0190-0.111.462025-04-25 08:37:00.3500.1093-0.051.3338.5
PLMAIV2025-04-25 08:36:56.0180.02000.300.552025-04-25 08:37:00.6420.0400-0.280.9539.2
POPMGU2025-04-25 08:36:56.5100.02210.021.492025-04-25 08:37:02.3240.1283-0.071.2643.5
MSSAIV2025-04-25 08:36:59.7340.0200-0.101.442025-04-25 08:37:07.8660.0400-0.231.0663.0


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
VLC MNHH0.701.54e-115.2117
EQUI GUHH0.277.76e-215.5250
SARM GUEH0.471.44e-115.799
CARD GUHH0.799.01e-227.7139
CME ITHN0.879.49e-229.5176
BDI IVHH0.798.53e-232.0121
GSCL GUHH0.715.57e-232.256
MAIM GUHH0.311.44e-237.8152
PLMA IVHH0.361.68e-239.2244
POPM GUHH0.868.93e-243.5114
MSSA IVHH0.275.31e-363.0282


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.
(°)
VLC MNHHZ2.3843e-52.4801e-68.6179e-72.4595e-71.4679e-74.9758e-53.7719e-62.1211e-74.6272e-815.2117
VLC MNHHN2.7043e-53.1582e-61.1186e-63.9333e-72.5941e-76.3989e-53.9843e-64.3589e-77.8192e-815.2117
VLC MNHHE3.0948e-53.7940e-61.2130e-63.4296e-71.7269e-78.2488e-54.7425e-63.1809e-77.5674e-815.2117
EQUI GUHHZ1.7634e-51.8189e-64.9782e-71.2939e-77.2361e-81.9622e-51.8550e-61.4967e-73.5003e-815.5250
EQUI GUHHN1.8267e-51.7670e-64.2987e-71.6407e-79.3167e-82.7798e-51.9299e-61.8217e-73.8302e-815.5250
EQUI GUHHE3.3549e-53.1724e-64.8338e-71.4991e-78.5053e-82.0794e-51.8205e-62.0553e-75.3141e-815.5250
SARM GUEHZ8.4754e-57.0131e-66.9139e-72.6387e-71.0191e-72.9731e-53.5795e-61.6660e-73.1105e-815.799
SARM GUEHN3.2637e-53.1133e-61.2513e-63.8942e-71.8134e-74.1821e-54.5947e-62.8205e-75.9399e-815.799
SARM GUEHE3.4439e-52.9461e-61.0129e-64.2912e-71.9116e-72.1076e-55.4767e-62.9334e-73.8704e-815.799
FIVI GUHNZ1.1231e-41.1495e-54.0553e-61.2264e-65.9784e-71.1232e-41.3493e-58.9646e-71.4548e-717.1291
FIVI GUHNN3.0510e-56.7085e-63.6620e-69.9195e-74.6965e-78.0790e-51.2647e-57.1454e-71.3693e-717.1291
FIVI GUHNE4.4969e-57.0965e-63.8437e-61.0828e-66.8040e-71.3046e-41.7909e-51.1199e-62.0252e-717.1291
CARD GUHHZ1.2670e-51.2105e-63.1987e-71.0547e-75.4993e-81.9129e-51.4362e-68.0605e-81.8893e-827.7139
CARD GUHHN2.1946e-52.3728e-67.4441e-72.4779e-71.0539e-71.9993e-53.1599e-61.9645e-74.2645e-827.7139
CARD GUHHE1.8151e-51.6202e-66.1854e-72.3305e-79.1973e-82.0473e-51.7991e-61.6953e-73.8909e-827.7139
CME ITHNZ5.2343e-66.6501e-74.6535e-72.6714e-71.3701e-71.2431e-52.1118e-61.5727e-71.7745e-829.5176
CME ITHNN8.5452e-61.5766e-69.2077e-73.8525e-72.1090e-71.8891e-54.5329e-62.6869e-73.4567e-829.5176
CME ITHNE1.4131e-51.4215e-65.0415e-72.6626e-71.7528e-71.3368e-52.1687e-62.2923e-72.5945e-829.5176
BDI IVHHZ5.2616e-66.2830e-73.0464e-79.0569e-85.6737e-81.4162e-51.2646e-69.3989e-81.5856e-832.0121
BDI IVHHN1.0821e-51.7885e-67.0399e-72.0713e-79.5378e-82.5693e-53.0512e-61.6112e-73.7213e-832.0121
BDI IVHHE1.1246e-51.1666e-65.7826e-71.5766e-76.7567e-82.6175e-52.2912e-61.1214e-72.3523e-832.0121
GSCL GUHHZ1.2526e-62.5388e-72.1328e-77.4433e-83.2678e-84.7951e-61.2888e-64.1869e-86.0814e-932.256
GSCL GUHHN3.4935e-68.8283e-74.7605e-71.4004e-77.6576e-81.2084e-51.7428e-61.2560e-71.9853e-832.256
GSCL GUHHE3.1127e-67.8052e-74.8234e-71.2280e-76.0851e-88.7694e-62.7149e-69.5436e-81.9140e-832.256
MAIM GUHHZ9.9927e-71.3037e-77.6245e-83.8120e-81.9372e-81.9991e-64.2642e-72.9378e-82.7940e-937.8152
MAIM GUHHN1.8331e-62.3866e-71.2126e-75.4556e-82.9184e-85.1043e-65.2937e-74.2768e-85.9004e-937.8152
MAIM GUHHE1.6404e-62.1112e-71.1263e-75.5923e-82.0215e-83.1112e-67.0121e-73.0364e-84.3045e-937.8152
GRAM GUHHZ1.7982e-51.7118e-65.6218e-71.4227e-78.7885e-82.2562e-52.6947e-61.3201e-72.6954e-838.5333
GRAM GUHHN1.1996e-51.8920e-61.3296e-63.3472e-72.0338e-74.6343e-57.7490e-63.2855e-75.2840e-838.5333
GRAM GUHHE9.1948e-62.4175e-61.8271e-66.1797e-72.6321e-72.6646e-51.4835e-53.8417e-76.1936e-838.5333
PLMA IVHHZ3.1241e-62.7080e-77.3830e-84.2996e-82.7042e-83.6414e-62.6785e-74.7771e-85.6400e-939.2244
PLMA IVHHN3.5825e-63.4525e-71.4699e-75.6297e-83.7400e-87.1401e-65.4613e-75.7297e-87.4725e-939.2244
PLMA IVHHE3.5320e-64.5343e-71.1004e-75.5574e-83.4588e-87.6002e-64.9316e-74.7285e-88.9764e-939.2244
POPM GUHHZ7.5758e-61.0099e-65.0059e-71.3000e-75.7392e-81.6101e-51.8705e-61.0506e-72.2794e-843.5114
POPM GUHHN7.4104e-61.5131e-68.9414e-72.3145e-71.2249e-71.7810e-53.0510e-61.9618e-73.7567e-843.5114
POPM GUHHE7.1755e-61.4081e-69.2826e-71.9806e-71.0016e-72.0837e-53.1130e-61.6704e-73.3045e-843.5114
MSSA IVHHZ3.8198e-76.9252e-83.3213e-82.0836e-81.6356e-81.5322e-61.1975e-72.2785e-81.6363e-963.0282
MSSA IVHHN7.6408e-76.8553e-84.7806e-82.0663e-81.4515e-81.8732e-61.8417e-72.3452e-82.0314e-963.0282
MSSA IVHHE9.8220e-79.1392e-84.7052e-82.0082e-81.1997e-81.2648e-61.5932e-71.9747e-82.0620e-963.0282
*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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