MANUAL Location - Area: Alpi Apuane , magnitude (ML): 0.3
2023-10-01 04:11:45 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2023-10-02 07:29:59

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Earthquake info - Manual location
Event - ID :231001041025
Magnitude (ML) :0.3 +/- 0.2
Origin Time :2023-10-01 04:11:45.958 (UTC)
Location : Latitude: 44.210 N, Longitude: 10.238 E
Area :Alpi Apuane
Depth (km) :5.02
Distances (km) : 0.7 --- Giuncugnano
4.8 --- Minucciano
5.1 --- Casola in Lunigiana
5.4 --- Sillano
5.5 --- Piazza al Serchio
9.6 --- Camporgiano
9.6 --- Fivizzano
9.7 --- San Romano in Garfagnana
11.1 --- Vagli Sotto
11.9 --- Careggine
12.7 --- Comano
13.8 --- Villa Collemandina
14.6 --- Ligonchio
15.3 --- Castiglione di Garfagnana
15.7 --- Collagna
16.2 --- Pieve Fosciana
17.1 --- Licciana Nardi
17.7 --- Castelnuovo di Garfagnana
19.1 --- Busana
19.2 --- Fosdinovo

Quality location estimate: Erh: 0.9 km, Erz: 0.6 km, Nf: 24, Gap: 126 °, Rms: 0.16


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.
EQUIGU2023-10-01 04:11:48.1800.00500.141.342023-10-01 04:11:49.6300.03100.101.509.9
FIVIGU2023-10-01 04:11:48.2500.0200-0.021.562023-10-01 04:11:49.8130.0400-0.081.2410.8
SARMGU2023-10-01 04:11:49.0300.0070-0.180.542023-10-01 04:11:51.2890.0411-0.320.3114.6
AULIT2023-10-01 04:11:50.1220.0200-0.021.562023-10-01 04:11:53.4360.04000.350.6521.7
CARDGU2023-10-01 04:11:51.6090.02000.370.562023-10-01 04:11:55.4000.08820.260.9728.7
CMEIT2023-10-01 04:11:51.5050.0200-0.081.252023-10-01 04:11:55.4050.0400-0.330.3729.3
BDIIV2023-10-01 04:11:52.3100.01700.041.632023-10-01 04:11:57.0700.10130.131.3333.5
GRAMGU2023-10-01 04:11:52.5720.02000.181.182023-10-01 04:11:56.9700.11230.211.1434.7
PLMAIV2023-10-01 04:11:52.7390.02000.041.632023-10-01 04:11:57.0000.1113-0.650.0935.8
MAIMGU2023-10-01 04:11:51.7130.0200-1.470.012023-10-01 04:11:58.5400.1203-0.021.2739.0
POPMGU2023-10-01 04:11:54.3500.02310.031.592023-10-01 04:12:00.6500.13740.091.2445.6
PIIIV2023-10-01 04:11:57.1330.12050.300.862023-10-01 04:12:04.1600.3287-0.810.1759.1


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
FIVI GUHN0.422.08e-110.8291
SARM GUEH0.066.49e-214.6102
CARD GUHH0.282.55e-228.7136
CME ITHN0.655.84e-229.3170
GRAM GUHH0.545.99e-234.7336
PLMA IVHH0.069.97e-335.8240
PII IVHH0.063.75e-359.1157


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.
(°)
EQUI GUHHZ6.6434e-68.7188e-72.4179e-77.5234e-84.0244e-81.6164e-51.0218e-66.6082e-81.3185e-89.9234
EQUI GUHHN6.6887e-66.4689e-72.3140e-78.5170e-83.9318e-86.8764e-69.8438e-77.0898e-81.4140e-89.9234
EQUI GUHHE6.8997e-64.9967e-71.8331e-71.8311e-72.0065e-77.1853e-67.8638e-72.4230e-71.5571e-89.9234
FIVI GUHNZ2.2840e-53.5812e-61.6099e-64.5118e-72.7275e-74.7067e-54.8172e-64.4607e-78.7913e-810.8291
FIVI GUHNN1.6512e-53.4284e-61.9383e-65.0684e-72.5539e-73.6547e-57.8370e-63.7566e-78.1227e-810.8291
FIVI GUHNE2.2749e-53.6413e-61.5234e-64.1097e-71.9434e-75.2891e-57.0228e-63.4961e-78.3283e-810.8291
SARM GUEHZ5.9255e-67.3692e-72.1660e-75.6453e-82.3611e-86.6581e-61.1111e-64.1517e-88.9145e-914.6102
SARM GUEHN5.0685e-61.0956e-65.3827e-71.4829e-77.8808e-81.2636e-51.8384e-61.2159e-72.4421e-814.6102
SARM GUEHE4.7207e-66.5444e-72.7934e-71.0484e-74.2363e-89.6250e-61.7745e-66.2035e-81.3079e-814.6102
CARD GUHHZ3.0354e-63.5668e-71.0999e-72.9455e-81.7284e-87.7565e-66.5818e-73.3485e-86.7595e-928.7136
CARD GUHHN5.7444e-65.9059e-71.8666e-75.2885e-83.1389e-88.5511e-69.2989e-76.3151e-81.3533e-828.7136
CARD GUHHE4.5505e-65.7020e-72.1474e-75.4527e-82.9042e-89.6945e-67.4331e-74.6597e-81.0533e-828.7136
CME ITHNZ4.0651e-64.6861e-73.5042e-72.2520e-71.0650e-74.0043e-61.6327e-61.3998e-71.1298e-829.3170
CME ITHNN5.0030e-69.1618e-75.8265e-72.9571e-71.5116e-76.7465e-63.1722e-61.8080e-72.2210e-829.3170
CME ITHNE5.7317e-66.6822e-74.0495e-72.2595e-71.1556e-77.1830e-61.9571e-61.5879e-71.7119e-829.3170
BDI IVHHZ1.3496e-61.3942e-73.9181e-81.3069e-86.0931e-91.6056e-62.3130e-71.1134e-82.6948e-933.5120
BDI IVHHN1.1169e-61.4087e-76.5499e-82.3794e-81.1688e-82.4851e-64.1469e-71.6262e-83.1437e-933.5120
BDI IVHHE1.1471e-61.5282e-75.7668e-82.1692e-88.7764e-92.0749e-62.2646e-71.4493e-83.0800e-933.5120
GRAM GUHHZ4.2866e-63.9519e-72.6370e-76.0454e-83.0726e-85.5220e-61.0521e-65.2297e-89.9923e-934.7336
GRAM GUHHN4.6962e-69.0029e-76.1022e-71.2551e-76.4375e-81.2239e-52.3260e-61.0766e-72.2064e-834.7336
GRAM GUHHE3.5312e-67.1147e-75.2749e-71.5315e-76.4162e-81.0851e-52.8097e-69.0919e-81.5941e-834.7336
PLMA IVHHZ1.1034e-61.0595e-73.9379e-82.4738e-81.8588e-89.9005e-72.1628e-73.5282e-82.0209e-935.8240
PLMA IVHHN1.2126e-61.5489e-78.9982e-84.0334e-82.4493e-83.7656e-62.6721e-73.5917e-83.6827e-935.8240
PLMA IVHHE1.5843e-61.6889e-75.4680e-83.2869e-82.4176e-82.3717e-62.3394e-73.5411e-84.1090e-935.8240
MAIM GUHHZ3.9677e-74.9070e-83.3549e-81.3969e-89.2303e-99.2500e-71.8866e-71.4580e-81.7920e-939.0148
MAIM GUHHN6.4549e-79.3532e-85.5931e-82.9598e-82.1473e-81.6765e-62.3419e-73.4246e-83.6407e-939.0148
MAIM GUHHE4.4425e-77.1991e-84.9993e-82.2367e-81.2424e-81.2243e-62.9486e-72.4210e-81.7661e-939.0148
POPM GUHHZ8.7966e-78.6923e-84.6626e-81.5797e-87.6965e-92.1244e-62.4442e-71.1950e-81.8250e-945.6114
POPM GUHHN1.1040e-62.0012e-71.1172e-72.6446e-81.2869e-82.2594e-64.3231e-72.0903e-84.3497e-945.6114
POPM GUHHE9.6995e-71.3774e-79.2344e-82.2324e-81.1144e-82.9637e-64.4778e-71.6703e-83.6880e-945.6114
PII IVHHZ4.0265e-76.0973e-83.4896e-88.9093e-94.9784e-97.8713e-71.8499e-77.8859e-91.1801e-959.1157
PII IVHHN3.3681e-75.4241e-83.6288e-81.4882e-81.0062e-88.3664e-71.8170e-71.6605e-81.4397e-959.1157
PII IVHHE5.0984e-76.4926e-83.9017e-81.3321e-87.2322e-91.3232e-61.9728e-71.0920e-81.4619e-959.1157
*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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