MANUAL Location - Area: Appennino modenese , magnitude (ML): 1.7
2023-03-04 08:57:55 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2023-03-06 08:31:57

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Earthquake info - Manual location
Event - ID :230304085631
Magnitude (ML) :1.7 +/- 0.2
Origin Time :2023-03-04 08:57:55.365 (UTC)
Location : Latitude: 44.403 N, Longitude: 10.936 E
Area :Appennino modenese
Depth (km) :40.64
Distances (km) : 3.4 --- Guiglia
6.7 --- Marano sul Panaro
7.6 --- Zocca
10.5 --- Vignola
11.0 --- Savigno
11.0 --- Pavullo nel Frignano
11.2 --- Castello di Serravalle
11.3 --- Castelvetro di Modena
11.6 --- Savignano sul Panaro
12.0 --- Serramazzoni
14.6 --- Castel d Aiano
14.7 --- Montese
14.8 --- Maranello
15.1 --- Monteveglio
16.2 --- Spilamberto
16.4 --- Bazzano
16.4 --- Castelnuovo Rangone
18.0 --- Polinago
18.2 --- Fiorano Modenese
19.3 --- Vergato

Quality location estimate: Erh: 1.4 km, Erz: 1.5 km, Nf: 30, Gap: 133 °, Rms: 0.22


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.
ZCCAIV2023-03-04 08:58:03.7300.03210.390.602023-03-04 08:58:09.8210.04000.081.5541.9
GSCLGU2023-03-04 08:58:04.2400.0200-0.310.792023-03-04 08:58:10.4540.1354-1.130.1350.1
POPMGU2023-03-04 08:58:05.8200.03010.181.332023-03-04 08:58:14.1140.04000.570.4259.0
BDIIV2023-03-04 08:58:06.0100.0271-0.121.502023-03-04 08:58:14.2190.0400-0.151.3462.3
SARMGU2023-03-04 08:58:06.4500.0271-0.031.662023-03-04 08:58:14.5300.2216-0.360.8664.4
CAVEIV2023-03-04 08:58:06.5080.0200-1.670.032023-03-04 08:58:14.7550.0400-3.620.0065.8
SEIIV2023-03-04 08:58:07.0520.0200-0.031.652023-03-04 08:58:15.5500.0400-0.810.2365.8
CARDGU2023-03-04 08:58:06.9300.0351-0.161.372023-03-04 08:58:16.0490.10020.061.4068.9
MAIMGU2023-03-04 08:58:08.2900.03910.071.592023-03-04 08:58:18.0320.35770.210.9876.8
EQUIGU2023-03-04 08:58:08.9200.03510.131.482023-03-04 08:58:18.7030.04000.121.3379.1
GRAMGU2023-03-04 08:58:09.4900.03610.051.592023-03-04 08:58:19.6000.2296-0.410.7981.2
RUFIIV2023-03-04 08:58:10.1100.0432-0.131.442023-03-04 08:58:21.2430.3207-0.620.5687.7
PIIIV2023-03-04 08:58:11.4300.04220.810.142023-03-04 08:58:22.1600.26770.241.0192.0
PLMAGU2023-03-04 08:58:12.4300.04720.191.302023-03-04 08:58:24.6090.29670.061.06103.1
MSSAIV2023-03-04 08:58:15.1600.05620.051.462023-03-04 08:58:28.7500.6319-0.970.41120.5


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
ZCCA IVHH1.693.23e-141.9151
GSCL GUHH1.531.56e-150.1258
POPM GUHH1.522.19e-159.0200
BDI IVHH1.762.09e-162.3216
SARM GUEH1.306.41e-264.4240
SEI IVHH2.073.03e-165.8139
CARD GUHH2.062.67e-168.9221
MAIM GUHH1.576.14e-276.8213
EQUI GUHH1.515.61e-279.1247
GRAM GUHH1.862.16e-181.2278
PII IVHH1.858.60e-292.0204
PLMA GUHH1.876.68e-2103.1246


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.
(°)
ZCCA IVHHZ8.4991e-61.6509e-61.4359e-67.2958e-72.7424e-71.9605e-51.0112e-53.6174e-74.7980e-841.9151
ZCCA IVHHN5.2053e-61.7014e-61.6781e-61.5333e-65.9088e-71.4285e-51.1830e-56.2049e-75.5495e-841.9151
ZCCA IVHHE6.5009e-62.5743e-62.4553e-61.5187e-65.4863e-71.5344e-51.1675e-57.0127e-77.1567e-841.9151
GSCL GUHHZ2.4240e-68.1512e-76.6068e-72.6529e-71.1844e-76.9370e-64.2494e-61.3759e-71.9844e-850.1258
GSCL GUHHN4.4944e-61.3533e-61.4006e-66.0060e-72.3159e-71.6534e-56.1007e-63.2521e-74.1165e-850.1258
GSCL GUHHE4.8964e-61.4022e-61.3722e-65.5713e-72.5912e-78.8902e-67.3935e-63.0511e-74.0051e-850.1258
POPM GUHHZ3.4845e-68.7080e-79.7978e-73.8673e-71.4529e-79.3470e-65.1226e-61.6498e-72.2436e-859.0200
POPM GUHHN4.5869e-61.8062e-61.9704e-69.7243e-73.4199e-71.0923e-51.3162e-54.1533e-75.3219e-859.0200
POPM GUHHE4.5496e-61.7136e-61.5979e-67.7512e-74.2490e-78.7283e-61.0875e-55.2238e-75.7552e-859.0200
BDI IVHHZ5.3691e-69.5721e-78.1617e-74.3645e-71.7021e-71.2073e-54.0279e-62.4070e-72.6087e-862.3216
BDI IVHHN4.3986e-61.2328e-61.2712e-65.9245e-72.5275e-71.0834e-57.6763e-62.7943e-73.2741e-862.3216
BDI IVHHE5.1144e-61.6397e-61.5866e-68.0619e-74.0412e-71.2366e-51.2067e-54.3877e-75.6664e-862.3216
SARM GUEHZ2.6857e-65.1967e-73.4310e-71.9152e-78.6281e-88.2638e-61.5346e-61.1216e-71.3059e-864.4240
SARM GUEHN1.4054e-64.3315e-74.0288e-74.2524e-71.6108e-73.4101e-61.5624e-61.8436e-71.6517e-864.4240
SARM GUEHE1.6184e-64.5097e-74.7054e-73.8966e-71.3867e-74.8335e-62.2792e-61.6543e-71.7757e-864.4240
SEI IVHHZ2.6040e-61.0714e-61.1999e-66.5967e-72.2767e-73.6629e-65.5381e-63.0461e-73.6986e-865.8139
SEI IVHHN4.4871e-62.2192e-62.4735e-61.6205e-66.1064e-76.9692e-61.6588e-57.7043e-77.7223e-865.8139
SEI IVHHE3.1782e-61.2923e-61.4145e-61.0535e-65.3583e-73.8020e-68.6316e-65.5374e-75.1685e-865.8139
CARD GUHHZ5.7868e-61.0897e-67.3181e-74.5352e-72.2777e-71.8021e-52.5444e-62.3060e-72.4271e-868.9221
CARD GUHHN1.1073e-52.8986e-62.0994e-61.4310e-65.7714e-73.9116e-57.7148e-67.3392e-78.6750e-868.9221
CARD GUHHE9.7402e-62.2302e-61.9709e-69.5631e-73.8319e-73.5288e-58.7675e-64.7947e-76.1764e-868.9221
MAIM GUHHZ3.4264e-64.9202e-73.0987e-71.8683e-77.7799e-84.0403e-61.8896e-69.6974e-81.1321e-876.8213
MAIM GUHHN3.1326e-67.2877e-75.9706e-73.0208e-71.1828e-79.0342e-62.6005e-61.6581e-72.0821e-876.8213
MAIM GUHHE2.9628e-66.4382e-75.4539e-73.2176e-71.1123e-78.7697e-62.3598e-61.3169e-71.6899e-876.8213
EQUI GUHHZ1.3847e-63.9268e-73.9043e-71.6111e-76.2875e-84.3646e-62.1866e-68.5230e-81.0526e-879.1247
EQUI GUHHN1.5852e-65.3739e-73.9355e-72.2682e-79.3494e-83.3606e-62.7207e-61.1436e-71.4373e-879.1247
EQUI GUHHE1.5941e-64.5083e-74.0757e-72.6866e-78.2859e-82.5769e-62.0066e-61.0897e-71.2216e-879.1247
GRAM GUHHZ3.1343e-65.6442e-75.7084e-73.9468e-71.9810e-75.6626e-62.7918e-62.8576e-72.2886e-881.2278
GRAM GUHHN4.2775e-61.5284e-61.4309e-68.2846e-73.3475e-71.0146e-58.9308e-63.9210e-74.0639e-881.2278
GRAM GUHHE4.5839e-61.8400e-61.8189e-69.5177e-73.3979e-79.2496e-69.1953e-64.3538e-75.8554e-881.2278
PII IVHHZ2.0892e-65.7755e-75.3758e-71.3375e-76.5218e-83.0852e-63.8901e-69.4753e-81.3978e-892.0204
PII IVHHN1.8309e-65.7675e-75.9291e-72.0575e-77.9437e-84.1713e-63.3005e-61.1314e-71.6482e-892.0204
PII IVHHE2.6067e-68.4945e-77.5490e-72.9017e-71.0673e-74.5820e-65.3937e-61.4814e-72.4013e-892.0204
PLMA GUHHZ1.9649e-62.8934e-72.5893e-71.0413e-75.6356e-84.8300e-61.4257e-67.5243e-88.0028e-9103.1246
PLMA GUHHN2.2313e-66.9618e-76.2821e-72.8343e-71.3470e-75.8091e-63.8819e-61.8601e-72.1541e-8103.1246
PLMA GUHHE1.8756e-64.6919e-74.7995e-72.3344e-71.1996e-74.7325e-62.5490e-61.4966e-71.5641e-8103.1246
MSSA IVHHZ2.9920e-52.5245e-64.4268e-72.1220e-71.1484e-72.3943e-51.8821e-62.2562e-74.7992e-8120.5266
MSSA IVHHN3.4101e-52.6458e-67.8819e-72.1034e-71.3722e-74.1784e-52.5124e-62.5833e-75.0469e-8120.5266
MSSA IVHHE1.7681e-51.9217e-68.5053e-72.4376e-71.2074e-75.1267e-52.6901e-62.0170e-74.5332e-8120.5266
*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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