MANUAL Location - Area: Garfagnana , magnitude (ML): 0.3
2026-08-04 17:33:41 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2026-08-04 20:38:29

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Earthquake info - Manual location
Event - ID :260804173206
Magnitude (ML) :0.3 +/- 0.2
Origin Time :2026-08-04 17:33:41.875 (UTC)
Location : Latitude: 44.112 N, Longitude: 10.500 E
Area :Garfagnana
Depth (km) :7.91
Distances (km) : 3.2 --- Fosciandora
4.3 --- Barga
5.7 --- Coreglia Antelminelli
7.0 --- Castelnuovo di Garfagnana
7.4 --- Pieve Fosciana
7.6 --- Gallicano
7.7 --- Molazzana
8.3 --- Castiglione di Garfagnana
9.8 --- Villa Collemandina
11.3 --- Vergemoli
13.4 --- Bagni di Lucca
13.8 --- Abetone
13.8 --- San Romano in Garfagnana
13.9 --- Fabbriche di Vallico
14.0 --- Pievepelago
14.1 --- Careggine
14.1 --- Fiumalbo
14.1 --- Camporgiano
15.1 --- Borgo a Mozzano
17.2 --- Vagli Sotto

Quality location estimate: Erh: 0.4 km, Erz: 0.3 km, Nf: 18, Gap: 155 °, Rms: 0.14


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.
CARDGU2026-08-04 17:33:44.6060.00900.240.412026-08-04 17:33:46.1800.0441-0.031.5612.7
BDIIV2026-08-04 17:33:44.4300.0080-0.041.552026-08-04 17:33:45.9000.0471-0.490.0112.9
VLCMN2026-08-04 17:33:44.8200.00900.350.552026-08-04 17:33:46.4600.04610.061.4313.5
SARMGU2026-08-04 17:33:44.9500.00900.330.562026-08-04 17:33:46.6500.0481-0.011.6014.4
VGLIT2026-08-04 17:33:45.7960.02000.400.402026-08-04 17:33:48.6380.04000.640.0118.8
POPMGU2026-08-04 17:33:46.4600.01300.071.442026-08-04 17:33:49.7800.0782-0.021.3623.4
MAIMGU2026-08-04 17:33:46.3700.06630.091.252026-08-04 17:33:49.6010.04000.041.4823.6
CMEIT2026-08-04 17:33:46.3880.0200-0.150.602026-08-04 17:33:50.0490.04000.051.4125.1
EQUIGU2026-08-04 17:33:47.3200.0200-0.031.602026-08-04 17:33:51.2230.0922-0.150.8029.5


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
BDI IVHH0.058.18e-212.9125
VLC MNHH0.114.87e-213.5300
SARM GUEH0.127.65e-214.4316
VGL ITHG0.529.73e-218.8270
MAIM GUHH0.112.24e-223.6182
CME ITHN0.606.91e-225.1222


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.
(°)
CARD GUHHZ3.4346e-53.6732e-69.2039e-73.1438e-72.0245e-77.1815e-53.5058e-63.8364e-77.6366e-812.7188
CARD GUHHN9.0768e-59.5723e-62.6862e-66.8087e-74.2108e-77.7787e-58.4652e-68.3017e-71.8841e-712.7188
CARD GUHHE5.8515e-58.1226e-63.0874e-66.9985e-73.8112e-71.5517e-47.6415e-67.6364e-71.8898e-712.7188
BDI IVHHZ8.3349e-69.1429e-72.9513e-78.1735e-84.3968e-81.4631e-51.4529e-68.3129e-81.9710e-812.9125
BDI IVHHN8.0313e-61.2542e-65.9469e-71.5590e-71.0866e-71.9170e-51.9431e-61.5585e-73.0597e-812.9125
BDI IVHHE1.3611e-51.8987e-65.9158e-71.8237e-71.0781e-72.3947e-52.2242e-62.0213e-74.4718e-812.9125
VLC MNHHZ7.7318e-67.1939e-71.7955e-77.7585e-84.9364e-87.8629e-68.7041e-78.8815e-81.8682e-813.5300
VLC MNHHN1.1378e-51.3951e-62.9469e-71.2965e-75.3474e-81.0240e-51.1475e-61.1081e-72.6977e-813.5300
VLC MNHHE6.9855e-67.6547e-71.7788e-77.8889e-83.6837e-86.5321e-69.4987e-75.7660e-81.2940e-813.5300
SARM GUEHZ4.1839e-67.1035e-74.3493e-72.0052e-79.1227e-81.0374e-52.9073e-61.2584e-71.6839e-814.4316
SARM GUEHN5.4088e-68.7624e-76.0081e-73.7012e-71.3821e-71.5627e-52.0886e-61.8815e-72.7337e-814.4316
SARM GUEHE7.9927e-61.0308e-65.6819e-74.1953e-71.6206e-71.8029e-52.7938e-62.2489e-73.0507e-814.4316
VGL ITHGZ2.8414e-52.8404e-66.6160e-74.4812e-72.6163e-71.7436e-53.0350e-63.2995e-73.0149e-818.8270
VGL ITHGN1.9944e-51.8126e-69.9312e-75.3483e-72.9707e-72.0927e-55.0029e-64.1803e-74.1029e-818.8270
VGL ITHGE1.1278e-51.2348e-68.4531e-75.1446e-72.6961e-71.6425e-54.5175e-64.0136e-73.7797e-818.8270
POPM GUHHZ8.8344e-61.5484e-67.6252e-71.9753e-71.1144e-72.2197e-53.4321e-61.7467e-73.1476e-823.4110
POPM GUHHN1.5293e-52.9777e-61.6547e-63.9011e-71.9615e-72.7496e-55.9010e-63.2249e-76.9611e-823.4110
POPM GUHHE1.5882e-53.8266e-61.8015e-64.0599e-72.2238e-73.6738e-57.7651e-63.7565e-78.5339e-823.4110
MAIM GUHHZ1.9502e-62.3643e-79.1968e-83.5196e-81.6502e-83.6679e-64.7517e-72.5310e-85.0088e-923.6182
MAIM GUHHN4.4288e-66.1371e-72.4508e-77.0481e-84.2142e-82.0532e-58.2983e-75.6800e-81.3075e-823.6182
MAIM GUHHE3.1528e-63.9646e-71.6497e-74.5048e-82.5407e-84.8872e-64.8365e-73.8698e-88.2405e-923.6182
CME ITHNZ4.1643e-64.4586e-73.2896e-72.3182e-71.4583e-76.2091e-61.5375e-61.6011e-71.5568e-825.1222
CME ITHNN6.3677e-61.0620e-66.6761e-72.7396e-71.7323e-71.1630e-52.0432e-61.9926e-72.8049e-825.1222
CME ITHNE6.1973e-67.3829e-74.4092e-72.8509e-71.6463e-71.6118e-51.6016e-62.2745e-71.9825e-825.1222
EQUI GUHHZ1.9285e-62.1316e-75.5653e-83.5393e-82.0518e-84.8405e-62.3450e-72.2810e-84.3568e-929.5282
EQUI GUHHN1.4610e-61.4674e-76.0254e-85.4276e-84.4485e-83.0394e-62.0811e-74.7315e-84.1616e-929.5282
EQUI GUHHE1.6635e-61.7814e-76.4400e-84.7042e-82.6645e-82.8194e-62.9032e-73.0366e-83.3914e-929.5282
*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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