MANUAL Location - Area: Frignano , magnitude (ML): 1.3
2023-03-03 09:51:43 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2023-03-03 10:01:17

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Earthquake info - Manual location
Event - ID :230303095100
Magnitude (ML) :1.3 +/- 0.1
Origin Time :2023-03-03 09:51:43.85 (UTC)
Location : Latitude: 44.226 N, Longitude: 10.605 E
Area :Frignano
Depth (km) :9.32
Distances (km) : 2.4 --- Pievepelago
3.9 --- Riolunato
6.1 --- Fiumalbo
8.3 --- Frassinoro
9.4 --- Montecreto
10.1 --- Abetone
11.3 --- Palagano
13.3 --- Sestola
13.7 --- Lama Mocogno
14.6 --- Montefiorino
15.3 --- Fanano
16.4 --- Polinago
16.7 --- Fosciandora
17.2 --- Toano
17.6 --- Castiglione di Garfagnana
18.1 --- Villa Collemandina
18.5 --- Cutigliano
18.5 --- Pieve Fosciana
19.0 --- Villa Minozzo
19.1 --- Coreglia Antelminelli

Quality location estimate: Erh: 1.2 km, Erz: 2.4 km, Nf: 18, Gap: 114 °, Rms: 0.14


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.
GSCLGU2023-03-03 09:51:46.4800.0090-1.220.062023-03-03 09:51:48.2990.0400-2.220.0017.1
SARMGU2023-03-03 09:51:47.6400.0100-0.011.862023-03-03 09:51:50.3140.0601-0.171.0119.8
BDIIV2023-03-03 09:51:47.8900.01100.051.622023-03-03 09:51:50.8900.06310.081.3020.8
POPMGU2023-03-03 09:51:48.6800.0130-0.031.772023-03-03 09:51:52.2400.0782-0.101.3525.4
CARDGU2023-03-03 09:51:48.7500.01300.001.862023-03-03 09:51:52.4100.07920.021.4726.2
MAIMGU2023-03-03 09:51:50.5000.0190-0.160.962023-03-03 09:51:55.7290.10020.001.3137.2
EQUIGU2023-03-03 09:51:50.4660.0200-0.310.432023-03-03 09:51:55.4990.0400-0.350.4437.9
GRAMGU2023-03-03 09:51:53.5200.02710.041.482023-03-03 09:52:00.5560.10020.150.8453.0
SEIIV2023-03-03 09:51:54.7560.0200-0.900.082023-03-03 09:52:03.8200.2406-0.930.1763.8


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
GSCL GUHH1.459.87e-117.1354
BDI IVHH1.204.91e-120.8182
POPM GUHH1.104.34e-125.4149
CARD GUHH1.192.51e-126.2204
GRAM GUHH1.261.34e-153.0305
SEI IVHH1.315.56e-263.8107


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.
(°)
GSCL GUHHZ7.8325e-59.8027e-62.2412e-67.1589e-73.7791e-74.9610e-51.2746e-55.4021e-79.8076e-817.1354
GSCL GUHHN5.1864e-51.3367e-57.9525e-62.6151e-61.3240e-68.7154e-53.8396e-51.9737e-63.2793e-717.1354
GSCL GUHHE3.1685e-58.9618e-65.6031e-62.7919e-61.6001e-66.0276e-53.6496e-52.3808e-62.9326e-717.1354
SARM GUEHZ1.5488e-52.8247e-61.2154e-64.2657e-72.0487e-74.1044e-55.5478e-63.3100e-76.2442e-819.8254
SARM GUEHN1.8838e-53.4702e-61.5643e-66.7412e-73.4655e-73.0778e-55.8575e-64.8199e-77.5020e-819.8254
SARM GUEHE2.1022e-53.1962e-61.3452e-64.5236e-72.4250e-76.9744e-55.6584e-63.9525e-77.8273e-819.8254
BDI IVHHZ3.5521e-54.7311e-63.2206e-61.2373e-65.8151e-74.0877e-52.9241e-57.8266e-71.1368e-720.8182
BDI IVHHN3.3547e-57.7389e-64.3295e-61.5261e-66.7103e-77.6468e-51.8966e-51.0009e-61.6470e-720.8182
BDI IVHHE3.3023e-54.8012e-63.6668e-61.0957e-65.6656e-75.5703e-52.2475e-58.2011e-71.2959e-720.8182
POPM GUHHZ3.2809e-53.5378e-62.0018e-69.0557e-73.6770e-76.2228e-51.2357e-55.7571e-78.9160e-825.4149
POPM GUHHN2.5063e-54.7723e-63.8696e-61.1871e-66.8023e-75.8606e-51.8657e-59.4329e-71.3412e-725.4149
POPM GUHHE3.2629e-55.7160e-63.9948e-61.3829e-66.0683e-76.2702e-52.0035e-59.0890e-71.4848e-725.4149
CARD GUHHZ1.8427e-51.7121e-66.1238e-72.0643e-71.2126e-74.1283e-52.0475e-62.1500e-74.0171e-826.2204
CARD GUHHN3.4206e-53.9732e-69.8413e-72.9839e-71.4921e-74.2954e-53.8229e-62.1899e-75.6714e-826.2204
CARD GUHHE3.5052e-54.6651e-62.0811e-64.4410e-72.7265e-71.2710e-46.1945e-64.8451e-71.0584e-726.2204
MAIM GUHHZ1.7946e-62.3931e-71.7342e-76.8439e-82.9339e-84.7842e-68.1441e-74.3064e-86.8154e-937.2195
MAIM GUHHN4.0793e-66.5983e-73.8249e-71.6942e-76.6800e-81.2456e-51.7885e-68.8168e-81.5893e-837.2195
MAIM GUHHE3.0737e-64.9077e-72.7261e-71.1848e-74.8887e-81.2601e-51.4454e-66.4926e-81.1621e-837.2195
EQUI GUHHZ2.0750e-63.1814e-72.2448e-71.1320e-75.2536e-85.4877e-69.9233e-76.7481e-88.3686e-937.9260
EQUI GUHHN2.6834e-63.0980e-72.0509e-71.0235e-75.7484e-85.3489e-61.0802e-67.3364e-87.2612e-937.9260
EQUI GUHHE1.9365e-62.8690e-71.8099e-78.1124e-84.6780e-86.7082e-68.1904e-76.5737e-87.2810e-937.9260
GRAM GUHHZ1.7509e-63.1254e-72.6956e-79.3329e-84.3347e-82.6188e-61.5338e-66.4053e-88.7911e-953.0305
GRAM GUHHN3.2013e-68.2449e-76.8355e-72.2498e-78.8153e-87.2361e-65.2972e-61.1680e-71.9467e-853.0305
GRAM GUHHE3.3930e-61.1953e-61.0837e-64.7618e-71.8627e-76.7923e-67.1548e-62.5088e-73.7666e-853.0305
SEI IVHHZ2.5417e-63.8118e-72.9425e-71.3034e-77.9787e-86.5825e-61.8845e-68.8305e-81.1765e-863.8107
SEI IVHHN1.6083e-64.6275e-75.3221e-73.4027e-71.1578e-73.7707e-62.2526e-61.3833e-71.4952e-863.8107
SEI IVHHE2.7213e-64.2971e-73.6737e-72.3256e-71.1673e-73.4913e-61.9957e-61.1513e-71.3850e-863.8107
*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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