AUTOMATIC Location - Area: Valdarno inferiore , magnitude (ML): 0.8
2025-12-08 21:06:12 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-12-08 21:10:33

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Earthquake info - RsniPicker2 automatic location
Event - ID :251208210545
Magnitude (ML) :0.8 +/- 0.2
Origin Time :2025-12-08 21:06:12.61 (UTC)
Location : Latitude: 43.616 N, Longitude: 10.982 E
Area :Valdarno inferiore
Depth (km) :6.98
Distances (km) : 1.4 --- Castelfiorentino (FI)
8.3 --- Montespertoli (FI)
8.7 --- Gambassi Terme (FI)
8.8 --- Montaione (FI)
8.9 --- Certaldo (FI)
12.0 --- Empoli (FI)
12.9 --- San Miniato (PI)
13.5 --- Montelupo Fiorentino (FI)
14.4 --- Capraia e Limite (FI)
16.7 --- Tavarnelle Val di Pesa (FI)
17.1 --- Palaia (PI)
17.1 --- San Gimignano (SI)
17.1 --- San Casciano in Val di Pesa (FI)
17.4 --- Barberino Val d Elsa (FI)
18.1 --- Cerreto Guidi (FI)
18.8 --- Fucecchio (FI)
18.9 --- Montopoli in Val d Arno (PI)
19.4 --- Vinci (FI)
19.6 --- Santa Croce sull Arno (PI)
20.1 --- Lastra a Signa (FI)

Quality location estimate:
Erh: 1.2 km, Erz: 2.7 km, Nf: 14, Gap: 165°, Rms: 0.198 s
Stazioni validate: 8


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.
CSNTIV2025-12-08 21:06:18.9800.06110.021.832025-12-08 21:06:23.5100.0911-0.011.6530.3
PIIIV2025-12-08 21:06:20.0000.0220-0.091.572025-12-08 21:06:24.3090.1182-1.230.1839.2
RUFIIV--:---.-----.---.--2025-12-08 21:06:29.1000.1492-0.071.3349.6
POPMGU2025-12-08 21:06:22.5200.02900.380.212025-12-08 21:06:29.0800.1552-0.161.1551.5
MAIMGU2025-12-08 21:06:22.1390.02800.101.522025-12-08 21:06:28.0900.1562-0.800.2452.0
CARDGU2025-12-08 21:06:23.6390.03300.061.65--:---.-----.---.-- 61.1
LMDIV2025-12-08 21:06:27.4200.0420-0.041.572025-12-08 21:06:37.6880.2342-1.060.2677.9
EQUIGU2025-12-08 21:06:29.4500.04701.060.002025-12-08 21:06:39.6800.3622-0.260.8390.5


RsniPicker2 - Automatic magnitude (ML) calculation results
Station Net Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth Used
PII IV0.704.03e-239.2288SI
POPM GU0.906.77e-251.5339SI
MAIM GU0.601.48e-252.0310SI
CARD GU1.003.38e-261.1319SI
EQUI GU0.901.11e-290.5313SI


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.
(°)
PII IVHHZ3.2598e-65.9286e-70.0000e+04.1477e-76.9990e-79.9608e-76.3170e-69.5352e-76.5026e-81.2382e-839.2288
PII IVHHN2.8683e-65.1600e-70.0000e+04.3665e-77.6629e-77.6629e-77.6573e-62.4971e-61.2810e-71.4032e-839.2288
PII IVHHE2.8845e-64.6232e-70.0000e+03.3306e-75.4875e-77.5500e-77.4353e-61.3036e-64.9498e-81.1047e-839.2288
POPM GUHHZ3.4751e-64.5635e-70.0000e+02.9972e-75.2112e-77.2893e-77.1620e-61.1314e-66.2462e-81.1628e-851.5339
POPM GUHHN6.3208e-61.0541e-60.0000e+07.4915e-71.2987e-61.2987e-61.3134e-52.4980e-61.4052e-72.3833e-851.5339
POPM GUHHE3.6666e-67.3373e-70.0000e+06.6511e-71.0410e-61.4012e-61.2731e-51.9126e-69.4775e-81.8102e-851.5339
MAIM GUHHZ1.7761e-62.6020e-70.0000e+01.2717e-72.3129e-73.3608e-73.2477e-64.8381e-73.8977e-85.7167e-952.0310
MAIM GUHHN1.9724e-62.5294e-70.0000e+01.8354e-73.1924e-73.1924e-75.3169e-67.4743e-74.1092e-85.8219e-952.0310
MAIM GUHHE1.9118e-62.5144e-70.0000e+01.5332e-72.8654e-74.0080e-75.3891e-65.6265e-74.6216e-87.3211e-952.0310
CARD GUHHZ1.7788e-62.5602e-70.0000e+01.6960e-72.9899e-74.1870e-74.2652e-65.1224e-75.7491e-87.1606e-961.1319
CARD GUHHN4.9160e-68.4884e-70.0000e+04.7182e-78.6190e-78.6190e-71.4697e-51.0146e-67.0324e-81.9072e-861.1319
CARD GUHHE5.2713e-64.9490e-70.0000e+03.4901e-76.1217e-78.6699e-71.2138e-51.0017e-61.1341e-71.0255e-861.1319
EQUI GUHHZ4.0908e-71.1713e-70.0000e+07.9536e-81.6699e-72.3746e-71.1442e-63.5270e-74.1998e-83.9844e-990.5313
EQUI GUHHN8.4723e-71.1481e-70.0000e+09.4757e-81.7842e-71.7842e-72.4059e-63.9196e-76.6701e-84.0267e-990.5313
EQUI GUHHE4.8088e-71.0596e-70.0000e+07.6167e-81.5775e-72.2315e-71.3044e-61.9160e-77.8515e-85.0429e-990.5313
*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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