AUTOMATIC Location - Area: Frignano , magnitude (ML): 1.1
2025-12-07 07:41:21 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-12-07 07:48:10

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Earthquake info - RsniPicker2 automatic location
Event - ID :251207074102
Magnitude (ML) :1.1 +/- 0.3
Origin Time :2025-12-07 07:41:21.809 (UTC)
Location : Latitude: 44.389 N, Longitude: 10.101 E
Area :Frignano
Depth (km) :11.88
Distances (km) : 3.3 --- Monchio delle Corti (PR)
9.0 --- Palanzano (PR)
9.8 --- Corniglio (PR)
10.9 --- Comano (MS)
11.6 --- Bagnone (MS)
14.4 --- Licciana Nardi (MS)
14.4 --- Ramiseto (RE)
14.6 --- Filattiera (MS)
14.7 --- Collagna (RE)
16.0 --- Villafranca in Lunigiana (MS)
16.3 --- Berceto (PR)
16.7 --- Fivizzano (MS)
16.7 --- Tizzano Val Parma (PR)
17.4 --- Pontremoli (MS)
17.9 --- Busana (RE)
18.6 --- Mulazzo (MS)
20.4 --- Tresana (MS)
20.8 --- Ligonchio (RE)
21.6 --- Casola in Lunigiana (MS)
21.8 --- Vetto (RE)

Quality location estimate:
Erh: 2.5 km, Erz: 1.5 km, Nf: 8, Gap: 167°, Rms: 0.098 s
Stazioni validate: 5


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.
GRAMGU2025-12-07 07:41:24.9800.00800.001.652025-12-07 07:41:27.9900.05010.800.0616.7
ERBMIV2025-12-07 07:41:27.5200.01400.001.63--:---.-----.---.-- 27.7
MSSAIV2025-12-07 07:41:30.6290.0240-0.031.412025-12-07 07:41:37.3690.14620.050.9448.6
ZCCAIV--:---.-----.---.--2025-12-07 07:41:46.0700.27720.260.5870.7
RNCAGU2025-12-07 07:41:37.5600.04600.031.102025-12-07 07:41:48.8100.30320.060.6292.5


RsniPicker2 - Automatic magnitude (ML) calculation results
Station Net Stat. Mag. Wood-And.
Ampl.		 Dist. (km) Azimuth Used
GRAM GU1.201.10e+016.7346SI
ERBM IV0.706.70e-227.782SI
MSSA IV1.106.69e-248.6260SI
ZCCA IV0.901.90e-270.793SI
RNCA GU1.503.80e-292.5276SI


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.
(°)
GRAM GUHHZ4.3605e-56.0705e-60.0000e+02.5525e-64.7163e-66.7399e-65.7824e-59.4503e-65.3352e-79.8704e-816.7346
GRAM GUHHN7.5374e-51.4707e-50.0000e+05.4168e-69.1724e-69.1724e-61.3437e-42.2996e-59.7408e-72.0059e-716.7346
GRAM GUHHE5.5084e-51.2154e-50.0000e+06.0549e-61.0224e-51.4183e-51.1356e-42.5135e-58.7130e-71.8508e-716.7346
MSSA IVHHZ3.8716e-71.1331e-70.0000e+07.6820e-81.7049e-72.3837e-71.6362e-63.7672e-75.5906e-86.0585e-948.6260
MSSA IVHHN1.1267e-62.6149e-70.0000e+02.0421e-73.7492e-73.7492e-72.7076e-68.6947e-76.9049e-88.9135e-948.6260
MSSA IVHHE8.4071e-72.1277e-70.0000e+01.8377e-73.1665e-74.3055e-72.0933e-66.3865e-76.5133e-87.0093e-948.6260
ZCCA IVHHZ6.0473e-77.9164e-80.0000e+04.8430e-89.8716e-81.8075e-73.7566e-73.8374e-77.3824e-81.0715e-870.793
ZCCA IVHHN1.3589e-61.1952e-70.0000e+08.0617e-82.0262e-72.0262e-74.9987e-74.3760e-71.0428e-71.8496e-870.793
ZCCA IVHHE7.7224e-71.1006e-70.0000e+08.9561e-81.8679e-72.8647e-77.0453e-74.4924e-77.7486e-81.0687e-870.793
RNCA GUHHZ7.9874e-62.0881e-60.0000e+01.8031e-63.7047e-65.7296e-62.5266e-51.0495e-51.8826e-62.2554e-792.5276
RNCA GUHHN9.9887e-64.7091e-60.0000e+03.5664e-66.6953e-66.6953e-62.6649e-52.2398e-51.9194e-63.2280e-792.5276
RNCA GUHHE1.7397e-54.4974e-60.0000e+04.3712e-67.3463e-69.9424e-65.9769e-51.7239e-51.5457e-61.9257e-792.5276
*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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