MANUAL Location - Area: Garfagnana , magnitude (ML): 0.0
2025-04-25 19:27:41 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-04-28 07:06:34

20 km
Lat : Lon
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Earthquake info - Manual location
Event - ID :250425192636
Magnitude (ML) :0.0 +/- 0.2
Origin Time :2025-04-25 19:27:41.337 (UTC)
Location : Latitude: 44.199 N, Longitude: 10.401 E
Area :Garfagnana
Depth (km) :3.62
Distances (km) : 4.3 --- Villa Collemandina
5.3 --- San Romano in Garfagnana
5.4 --- Castiglione di Garfagnana
6.8 --- Camporgiano
7.3 --- Pieve Fosciana
8.3 --- Piazza al Serchio
8.3 --- Sillano
9.8 --- Castelnuovo di Garfagnana
10.3 --- Fosciandora
10.5 --- Careggine
12.4 --- Giuncugnano
13.2 --- Vagli Sotto
14.0 --- Molazzana
14.0 --- Ligonchio
15.4 --- Barga
15.5 --- Gallicano
15.7 --- Minucciano
16.4 --- Vergemoli
17.2 --- Pievepelago
17.5 --- Frassinoro

Quality location estimate: Erh: 0.4 km, Erz: 0.4 km, Nf: 18, Gap: 126 °, Rms: 0.09


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.
SARMGU2025-04-25 19:27:42.8000.00200.120.972025-04-25 19:27:43.6300.0090-0.061.455.0
VLCMN2025-04-25 19:27:42.8900.10450.150.842025-04-25 19:27:43.8100.01700.031.626.2
CARDGU2025-04-25 19:27:45.2240.0200-0.061.432025-04-25 19:27:48.1260.0400-0.061.3720.7
BDIIV2025-04-25 19:27:44.7220.0200-0.960.032025-04-25 19:27:48.8400.0651-0.041.3822.2
GSCLGU2025-04-25 19:27:46.3980.02000.041.582025-04-25 19:27:49.9800.0661-0.041.3122.9
ERBMIV2025-04-25 19:27:46.7600.10850.021.302025-04-25 19:27:50.6710.0400-0.210.5025.0
MAIMGU2025-04-25 19:27:47.0160.0200-0.480.072025-04-25 19:27:51.4100.1675-0.650.1132.8
POPMGU2025-04-25 19:27:47.6970.02000.041.532025-04-25 19:27:52.4400.09920.110.9733.4
GRAMGU2025-04-25 19:27:49.1210.0200-0.011.542025-04-25 19:27:55.3200.12730.740.0142.3


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
SARM GUEH-0.083.07e-15.0180
CARD GUHH0.052.80e-220.7161
BDI IVHH-0.042.53e-222.2134
GSCL GUHH0.243.57e-222.941
ERBM IVEH-0.221.05e-225.02
MAIM GUHH0.091.15e-232.8167
POPM GUHH0.012.14e-233.4121
GRAM GUHH0.342.58e-242.3321


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.
(°)
SARM GUEHZ2.7596e-53.7935e-61.1645e-63.3105e-71.7982e-74.1835e-53.7312e-62.7142e-76.9257e-85.0180
SARM GUEHN4.5702e-55.4798e-61.8079e-61.1508e-65.0811e-72.3886e-51.0076e-56.9193e-79.9818e-85.0180
SARM GUEHE5.3358e-55.1809e-61.4481e-64.6041e-72.3872e-76.9086e-54.3904e-64.7573e-71.0633e-75.0180
VLC MNHHZ1.2648e-51.7705e-64.0982e-71.1072e-76.3045e-82.0314e-51.5659e-61.0903e-72.2215e-86.2195
VLC MNHHN1.3576e-51.7730e-65.8562e-71.7092e-79.3386e-81.7101e-52.6435e-61.3993e-73.4635e-86.2195
VLC MNHHE1.4723e-52.1610e-66.8332e-71.6884e-79.6009e-83.1332e-52.5575e-61.6573e-74.2501e-86.2195
CARD GUHHZ4.0481e-63.3171e-71.0890e-74.5856e-82.3784e-87.3855e-63.7248e-73.7670e-86.9251e-920.7161
CARD GUHHN6.3360e-66.3037e-72.1527e-78.3498e-83.5606e-86.1642e-68.3840e-76.2620e-81.1424e-820.7161
CARD GUHHE5.2578e-65.1989e-72.1472e-76.6872e-82.9376e-81.1325e-57.3905e-75.5820e-81.1371e-820.7161
BDI IVHHZ3.3561e-63.2854e-71.0988e-73.3708e-81.8468e-85.1468e-68.3803e-73.2924e-87.3838e-922.2134
BDI IVHHN3.9919e-65.7080e-71.8819e-75.7456e-83.0646e-81.1211e-51.1271e-65.8027e-81.2893e-822.2134
BDI IVHHE3.3239e-64.7336e-71.5603e-73.7228e-82.3321e-89.6775e-66.1920e-74.2734e-81.0361e-822.2134
GSCL GUHHZ6.8504e-79.7883e-87.5340e-82.6291e-81.4462e-82.1739e-64.5007e-72.5192e-82.5391e-922.941
GSCL GUHHN1.8115e-64.4114e-72.9225e-78.1865e-84.1026e-83.2725e-61.5878e-66.5026e-81.1130e-822.941
GSCL GUHHE1.1284e-63.2704e-72.1613e-79.3534e-84.6370e-83.1616e-61.0192e-66.5853e-88.6823e-922.941
ERBM IVEHZ2.4036e-63.0446e-75.7516e-82.0720e-81.5098e-83.5174e-62.0922e-72.5671e-83.5556e-925.02
ERBM IVEHN1.7351e-62.3659e-71.1374e-72.4999e-81.4213e-85.3566e-65.2849e-72.2795e-84.7271e-925.02
ERBM IVEHE2.0544e-62.4579e-77.6669e-81.9210e-81.1629e-85.7609e-62.7691e-71.9229e-84.7227e-925.02
MAIM GUHHZ4.6140e-75.4327e-84.7213e-82.6157e-81.0490e-87.7259e-72.7538e-71.2698e-81.4397e-932.8167
MAIM GUHHN5.6672e-71.0627e-77.5494e-84.3728e-81.8382e-81.2027e-64.3555e-72.2590e-82.8283e-932.8167
MAIM GUHHE5.9923e-79.4088e-88.3724e-86.1205e-83.5604e-89.0956e-76.1297e-76.3069e-87.4553e-932.8167
POPM GUHHZ1.5641e-61.9666e-71.1538e-73.4467e-81.8316e-84.5664e-64.5585e-73.3793e-84.9163e-933.4121
POPM GUHHN2.2848e-63.3466e-71.9777e-74.7973e-82.3187e-84.0229e-67.9352e-74.1004e-87.4294e-933.4121
POPM GUHHE1.8541e-63.5330e-72.0247e-74.4851e-82.4039e-84.5625e-67.6249e-74.1303e-87.5724e-933.4121
GRAM GUHHZ1.2222e-61.3699e-77.2455e-81.7948e-81.3772e-81.3654e-62.3945e-72.4565e-83.0546e-942.3321
GRAM GUHHN1.1589e-62.1918e-71.8259e-74.9684e-82.2329e-82.2341e-61.2493e-63.5244e-85.3557e-942.3321
GRAM GUHHE1.0100e-62.5396e-72.3903e-79.0937e-88.2534e-82.7090e-61.7201e-61.4784e-79.9971e-942.3321
*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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