AUTOMATIC Location - Area: Valdarno inferiore , magnitude (ML): 0.5
2026-01-16 11:29:04 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2026-01-16 11:33:35

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Earthquake info - RsniPicker2 automatic location
Event - ID :260116112841
Magnitude (ML) :0.5 +/- 0.3
Origin Time :2026-01-16 11:29:04.75 (UTC)
Location : Latitude: 43.842 N, Longitude: 10.357 E
Area :Valdarno inferiore
Depth (km) :5.50
Distances (km) : 4.0 --- Massarosa (LU)
7.0 --- Vecchiano (PI)
9.3 --- Viareggio (LU)
11.0 --- San Giuliano Terme (PI)
11.8 --- Camaiore (LU)
12.0 --- Lucca (LU)
14.3 --- Pisa (PI)
14.7 --- Pescaglia (LU)
16.3 --- Pietrasanta (LU)
17.4 --- Capannori (LU)
18.0 --- Calci (PI)
18.1 --- Stazzema (LU)
18.3 --- Fabbriche di Vallico (LU)
20.0 --- Seravezza (LU)
20.1 --- Forte dei Marmi (LU)
21.2 --- Porcari (LU)
21.6 --- Borgo a Mozzano (LU)
22.5 --- Buti (PI)
23.5 --- Vergemoli (LU)
23.7 --- Vicopisano (PI)

Quality location estimate:
Erh: 2.8 km, Erz: 1.9 km, Nf: 10, Gap: 207°, Rms: 0.13 s
Stazioni validate: 6


RsniPicker2 - Automatic location results
Station Net P arrival times P pick
err
P pick
weight
P res Nll
weight
S arrival time S pick
err
S pick
weight
S res Nll
weight
Dist.
MAIMGU2026-01-16 11:29:08.2700.01000.280.102026-01-16 11:29:10.3540.0981-0.051.4814.5
PIIIV2026-01-16 11:29:08.9800.01100.001.932026-01-16 11:29:11.5700.5713-0.590.4919.8
CARDGU--:---.-----.---.--2026-01-16 11:29:12.7200.05910.021.6223.5
SARMGU2026-01-16 11:29:11.8700.0210-0.031.762026-01-16 11:29:16.0800.1042-1.150.0838.6
POPMGU2026-01-16 11:29:12.1300.02100.041.692026-01-16 11:29:17.1640.1132-0.450.3039.6
GRAMGU--:---.-----.---.--2026-01-16 11:29:27.0400.2362-0.450.5576.1


RsniPicker2 - Automatic magnitude (ML) calculation results
Station Net Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth Used
MAIM GU0.401.18e-114.554SI
PII IV0.204.13e-219.8135SI
CARD GU0.901.61e-123.526SI
SARM GU0.201.62e-238.65SI
POPM GU0.303.10e-239.655SI
GRAM GU0.902.95e-276.1342SI


Results of PGA, PGV, IH, spectral amplitudes (SA) values calculation
Station Net Channel PGA
(g)
PGV
(m/s)
PGD
(m)
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.
(°)
MAIM GUHHZ1.2741e-51.4002e-60.0000e+05.0355e-79.4717e-71.3732e-61.2203e-51.3844e-69.4130e-81.9040e-814.554
MAIM GUHHN1.4707e-51.9468e-60.0000e+09.0774e-71.6235e-61.6235e-61.7700e-51.7583e-61.2813e-73.2603e-814.554
MAIM GUHHE1.8936e-52.8155e-60.0000e+07.3833e-71.4149e-62.0813e-61.5463e-51.8311e-61.6559e-73.0417e-814.554
PII IVHHZ4.8094e-65.8445e-70.0000e+03.0506e-75.6813e-78.1465e-76.0281e-69.1379e-75.3362e-81.3369e-819.8135
PII IVHHN8.1757e-61.1495e-60.0000e+03.0046e-75.8440e-75.8440e-79.2289e-61.0786e-66.2291e-81.4037e-819.8135
PII IVHHE6.2074e-67.6815e-70.0000e+03.5649e-76.7488e-79.7292e-71.4128e-56.3518e-77.1072e-81.2710e-819.8135
CARD GUHHZ1.2960e-51.4754e-60.0000e+04.5140e-78.9140e-71.3366e-61.0918e-51.4074e-68.9460e-82.3684e-823.526
CARD GUHHN5.8165e-55.2174e-60.0000e+01.4720e-62.5818e-62.5818e-64.8223e-53.8593e-62.1848e-75.3068e-823.526
CARD GUHHE4.1134e-53.5296e-60.0000e+01.0619e-62.0246e-62.9925e-63.8198e-52.3693e-61.6333e-74.2004e-823.526
SARM GUEHZ1.0244e-61.4273e-70.0000e+07.3603e-81.4089e-72.0538e-71.5545e-61.7738e-74.7296e-81.3451e-838.65
SARM GUEHN1.1252e-61.6035e-70.0000e+01.1329e-72.3587e-72.3587e-72.5777e-62.6537e-71.0139e-71.0768e-838.65
SARM GUEHE1.0079e-61.5940e-70.0000e+09.2781e-81.8736e-72.6589e-72.6881e-62.7979e-77.3755e-81.1613e-838.65
POPM GUHHZ5.1410e-65.4567e-70.0000e+02.5600e-75.1179e-77.5582e-79.2160e-64.3855e-76.8049e-81.1973e-839.655
POPM GUHHN6.2708e-67.0074e-70.0000e+03.8605e-76.9766e-76.9766e-78.4981e-67.1312e-78.9359e-81.4476e-839.655
POPM GUHHE5.1888e-65.2619e-70.0000e+03.4581e-76.1627e-78.6862e-78.6664e-61.0511e-61.0093e-71.7571e-839.655
GRAM GUHHZ7.7142e-71.2053e-70.0000e+06.4227e-81.5878e-73.0655e-78.1784e-72.1797e-71.0145e-72.3955e-876.1342
GRAM GUHHN1.1501e-61.8329e-70.0000e+01.3583e-72.6333e-72.6333e-71.2470e-66.9914e-79.9244e-81.6459e-876.1342
GRAM GUHHE1.1582e-62.1997e-70.0000e+01.4072e-72.9680e-74.9885e-71.5870e-66.9298e-72.1377e-72.2358e-876.1342
*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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