MANUAL Location - Area: Garfagnana , magnitude (ML): -0.2
2025-08-12 01:25:37 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-08-12 15:52:13

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Earthquake info - Manual location
Event - ID :250812012515
Magnitude (ML) :-0.2 +/- 0.2
Origin Time :2025-08-12 01:25:37.672 (UTC)
Location : Latitude: 44.169 N, Longitude: 10.556 E
Area :Garfagnana
Depth (km) :11.12
Distances (km) : 6.4 --- Pievepelago
7.4 --- Fiumalbo
9.1 --- Abetone
9.5 --- Fosciandora
10.4 --- Riolunato
11.8 --- Castiglione di Garfagnana
11.9 --- Barga
11.9 --- Coreglia Antelminelli
12.1 --- Pieve Fosciana
12.7 --- Villa Collemandina
13.2 --- Castelnuovo di Garfagnana
14.3 --- Frassinoro
15.2 --- Molazzana
15.3 --- Gallicano
15.7 --- Montecreto
16.7 --- San Romano in Garfagnana
17.6 --- Camporgiano
17.8 --- Cutigliano
17.8 --- Bagni di Lucca
18.5 --- Sestola

Quality location estimate: Erh: 0.9 km, Erz: 0.8 km, Nf: 10, Gap: 124 °, Rms: 0.10


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.
SARMGU2025-08-12 01:25:40.9210.0200-0.011.822025-08-12 01:25:42.9990.0400-0.390.1617.4
VLCMN2025-08-12 01:25:41.2420.02000.270.292025-08-12 01:25:43.4710.04000.021.7417.9
CARDGU2025-08-12 01:25:41.4660.0200-0.011.832025-08-12 01:25:44.3700.04000.051.6020.5
GSCLGU2025-08-12 01:25:42.1200.0713-0.530.152025-08-12 01:25:44.8480.0400-1.470.0023.5
POPMGU2025-08-12 01:25:42.4000.11850.190.892025-08-12 01:25:45.6450.0400-0.021.5224.1


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
VLC MNHH-0.301.14e-217.9266
CARD GUHH0.133.41e-220.5200
GSCL GUHH-0.299.95e-323.57


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 GUEHZ6.5431e-77.5780e-83.1585e-81.1792e-87.0100e-97.1544e-71.1911e-71.3071e-81.8215e-917.4278
SARM GUEHN8.3050e-79.6312e-83.3413e-81.9183e-87.9767e-91.3360e-61.3609e-71.0656e-81.7489e-917.4278
SARM GUEHE9.8134e-71.0718e-73.6581e-81.8862e-89.4817e-91.2648e-61.9923e-71.1396e-81.9960e-917.4278
VLC MNHHZ9.5500e-71.0951e-74.9572e-82.1984e-81.1530e-81.4782e-62.6649e-71.5636e-82.2647e-917.9266
VLC MNHHN9.7355e-71.3263e-75.6814e-81.9490e-88.4003e-91.8372e-62.8361e-71.3065e-82.6002e-917.9266
VLC MNHHE1.4990e-62.0568e-71.0899e-73.3683e-81.8193e-81.9575e-66.0341e-72.7953e-85.2241e-917.9266
CARD GUHHZ1.6840e-61.7429e-77.2009e-82.2283e-81.2323e-83.2693e-62.1666e-72.1926e-84.2530e-920.5200
CARD GUHHN3.1704e-63.1369e-71.4708e-74.3555e-82.0781e-85.2234e-65.0042e-73.6050e-87.9517e-920.5200
CARD GUHHE3.9423e-67.7951e-72.5530e-75.7385e-83.4951e-81.0790e-57.3208e-76.6939e-81.5946e-820.5200
GSCL GUHHZ3.3620e-76.4872e-81.7404e-81.2293e-82.2391e-87.5090e-79.8989e-84.9200e-83.0750e-923.57
GSCL GUHHN6.9841e-71.4406e-77.7265e-82.3168e-81.2726e-81.9903e-62.8275e-72.2224e-83.5835e-923.57
GSCL GUHHE4.1868e-79.7551e-87.2500e-82.6467e-81.3860e-81.0858e-64.1762e-72.0871e-83.0740e-923.57
POPM GUHHZ9.4462e-71.1375e-73.4788e-81.0298e-86.3426e-92.0288e-61.3470e-79.1896e-92.3613e-924.1131
POPM GUHHN6.8108e-71.0565e-75.9175e-81.2767e-87.0373e-91.3358e-61.8242e-71.0629e-82.3491e-924.1131
POPM GUHHE1.0051e-61.3709e-74.8333e-81.4510e-87.2512e-91.7666e-62.0328e-71.0717e-82.9629e-924.1131
*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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