MANUAL Location - Area: Valdarno inferiore , magnitude (ML): 0.7
2025-06-17 16:12:56 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-06-18 08:36:36

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Earthquake info - Manual location
Event - ID :250617161230
Magnitude (ML) :0.7 +/- 0.2
Origin Time :2025-06-17 16:12:56.049 (UTC)
Location : Latitude: 43.873 N, Longitude: 10.418 E
Area :Valdarno inferiore
Depth (km) :5.30
Distances (km) : 6.4 --- Massarosa
7.7 --- Lucca
10.3 --- Vecchiano
10.5 --- Pescaglia
11.9 --- Camaiore
12.2 --- San Giuliano Terme
12.8 --- Capannori
13.5 --- Viareggio
13.9 --- Fabbriche di Vallico
15.7 --- Borgo a Mozzano
16.6 --- Porcari
17.0 --- Stazzema
17.3 --- Pisa
17.6 --- Pietrasanta
17.9 --- Calci
19.2 --- Villa Basilica
20.1 --- Vergemoli
20.2 --- Montecarlo
20.5 --- Seravezza
20.6 --- Bagni di Lucca

Quality location estimate: Erh: 0.9 km, Erz: 0.5 km, Nf: 20, Gap: 141 °, Rms: 0.12


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.
MAIMGU2025-06-17 16:12:58.2400.0060-0.031.852025-06-17 16:12:59.5400.0230-0.390.439.2
CMEIT2025-06-17 16:12:58.9220.0200-0.131.142025-06-17 16:13:01.2670.0400-0.011.8214.2
CARDGU2025-06-17 16:12:59.7900.01100.031.772025-06-17 16:13:02.5500.05010.031.6118.7
PIIIV2025-06-17 16:12:59.3900.0381-0.870.012025-06-17 16:13:01.4210.0400-2.000.0019.6
BDIIV2025-06-17 16:13:01.1700.0874-0.051.582025-06-17 16:13:04.7330.0762-0.340.5626.2
POPMGU2025-06-17 16:13:02.4200.02310.051.522025-06-17 16:13:06.9200.0952-0.201.0033.7
SARMGU2025-06-17 16:13:02.5800.02410.001.782025-06-17 16:13:07.7020.17450.260.5735.2
EQUIGU2025-06-17 16:13:03.1160.0200-0.111.332025-06-17 16:13:08.1360.1153-0.410.5039.2
PLMAIV2025-06-17 16:13:05.1010.02000.031.542025-06-17 16:13:14.2250.04002.480.0049.5
GSCLGU2025-06-17 16:13:06.9130.02000.310.202025-06-17 16:13:14.0800.1604-0.290.8055.1


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
MAIM GUHH0.694.57e-19.253
CME ITHN0.823.26e-114.2314
CARD GUHH1.073.56e-118.717
PII IVHH0.571.01e-119.6153
BDI IVHH0.577.47e-226.234
POPM GUHH0.577.60e-233.755
SARM GUEH0.443.03e-235.2358
EQUI GUHH0.592.89e-239.2327
PLMA IVHH0.591.76e-249.5294
GSCL GUHH1.084.55e-255.114


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.
(°)
MAIM GUHHZ5.6768e-56.5038e-62.1698e-69.2551e-74.5788e-79.0027e-51.1485e-57.6911e-71.3096e-79.253
MAIM GUHHN7.4167e-59.5260e-63.6835e-61.6208e-67.0978e-71.2934e-41.6525e-51.0134e-61.7047e-79.253
MAIM GUHHE1.4095e-41.5152e-53.0107e-61.0389e-64.6459e-71.3040e-41.1592e-51.0447e-62.6569e-79.253
CME ITHNZ1.9872e-53.4988e-61.6469e-65.4923e-72.6653e-73.1818e-57.4927e-63.8723e-76.8705e-814.2314
CME ITHNN2.3925e-54.8373e-63.1888e-69.6916e-75.2986e-77.8799e-51.6526e-57.4764e-71.2122e-714.2314
CME ITHNE3.0228e-54.4744e-62.0617e-65.1950e-73.5879e-75.5609e-58.9540e-66.6602e-71.1037e-714.2314
CARD GUHHZ1.9071e-52.3182e-61.3554e-66.1891e-73.1103e-74.2161e-59.6689e-64.3229e-75.7289e-818.717
CARD GUHHN4.5773e-55.5349e-62.6553e-67.6992e-74.0712e-78.9778e-51.6211e-56.5432e-71.1396e-718.717
CARD GUHHE5.4381e-57.1309e-62.6341e-67.5392e-74.1716e-71.4161e-41.2484e-57.6010e-71.4636e-718.717
PII IVHHZ1.2162e-51.2971e-66.5734e-72.8056e-71.1678e-71.3449e-52.3381e-61.5729e-72.9014e-819.6153
PII IVHHN8.3224e-61.2708e-68.7496e-72.6897e-71.2515e-72.0358e-53.7420e-61.9178e-73.3035e-819.6153
PII IVHHE7.9391e-61.0955e-67.5791e-74.2332e-71.7270e-72.5993e-53.1142e-62.1141e-73.4338e-819.6153
BDI IVHHZ9.6541e-61.2167e-64.2307e-71.6172e-77.3511e-89.1601e-62.6217e-61.1260e-72.4466e-826.234
BDI IVHHN8.3399e-69.2458e-76.1075e-71.9097e-79.3633e-81.7473e-53.5780e-61.4638e-72.7071e-826.234
BDI IVHHE6.4445e-69.6073e-77.0613e-72.6838e-71.1526e-71.8537e-53.5333e-61.6762e-72.5410e-826.234
POPM GUHHZ5.8230e-67.1467e-73.7422e-71.0200e-74.4450e-89.2230e-61.7051e-67.5287e-81.4908e-833.755
POPM GUHHN8.5581e-61.4052e-67.2606e-71.4889e-78.2640e-81.6365e-52.2598e-61.3462e-72.9872e-833.755
POPM GUHHE5.8867e-61.2879e-66.6159e-71.7992e-77.9790e-81.7452e-52.9812e-61.3212e-72.8827e-833.755
SARM GUEHZ1.5282e-61.7425e-71.1464e-77.1440e-84.6924e-83.2137e-64.3065e-78.1071e-86.1058e-935.2358
SARM GUEHN1.4721e-62.3899e-71.9539e-71.7664e-77.3863e-82.9521e-69.1067e-78.4728e-89.3291e-935.2358
SARM GUEHE2.1528e-62.5262e-71.8403e-71.0904e-73.6465e-83.4318e-69.5922e-74.9550e-87.7959e-935.2358
EQUI GUHHZ3.4060e-63.5651e-72.1340e-77.0310e-83.3985e-88.8308e-61.2451e-64.6833e-88.5101e-939.2327
EQUI GUHHN5.1089e-66.1678e-72.5122e-79.7734e-85.9605e-81.4060e-51.0050e-66.0377e-81.1946e-839.2327
EQUI GUHHE3.0036e-64.5338e-72.4677e-79.1532e-83.8257e-89.2515e-61.1172e-65.8751e-81.0376e-839.2327
PLMA IVHHZ1.4269e-61.2944e-76.7671e-85.9595e-83.9265e-81.5896e-63.4708e-75.3531e-83.0005e-949.5294
PLMA IVHHN1.2599e-61.7457e-71.5034e-71.1530e-77.6704e-83.2177e-66.3778e-71.0875e-76.5521e-949.5294
PLMA IVHHE1.0779e-61.7271e-71.0826e-79.8009e-87.2242e-81.9779e-65.8309e-78.6417e-84.9118e-949.5294
GSCL GUHHZ1.4586e-61.3764e-71.0102e-76.7127e-83.7790e-81.7842e-66.9794e-73.4854e-83.4539e-955.114
GSCL GUHHN3.6763e-64.4718e-73.7951e-72.2557e-71.0838e-73.4724e-62.2803e-61.3821e-71.7362e-855.114
GSCL GUHHE3.6718e-64.2750e-72.9573e-72.5613e-71.1964e-74.1033e-61.8410e-61.8360e-71.1981e-855.114
*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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