MANUAL Location - Area: Appennino bolognese , magnitude (ML): 2.2
2020-07-04 05:51:42 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2020-07-06 10:25:34

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Earthquake info - Manual location
Event - ID :200704055129
Magnitude (ML) :2.2 +/- 0.3
Origin Time :2020-07-04 05:51:42.992 (UTC)
Location : Latitude: 44.259 N, Longitude: 11.693 E
Area :Appennino bolognese
Depth (km) :18.15
Distances (km) : 3.1 --- Riolo Terme
6.6 --- Casola Valsenio
7.5 --- Casalfiumanese
7.7 --- Brisighella
8.6 --- Borgo Tossignano
10.6 --- Fontanelice
10.8 --- Imola
10.9 --- Castel Bolognese
12.4 --- Dozza
13.7 --- Modigliana
15.4 --- Faenza
15.8 --- Castel del Rio
16.8 --- Solarolo
17.6 --- Castel San Pietro Terme
18.1 --- Bagnara di Romagna
18.2 --- Mordano
19.5 --- Castel Guelfo di Bologna
19.8 --- Palazzuolo sul Senio
20.2 --- Tredozio
21.2 --- Marradi

Quality location estimate: Erh: 1.1 km, Erz: 0.9 km, Nf: 26, Gap: 152 °, Rms: 0.21


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.
IMOLIV2020-07-04 05:51:47.3700.0120-0.211.482020-07-04 05:51:51.1800.0631-0.131.6721.7
LMDIV2020-07-04 05:51:48.5500.01100.041.442020-07-04 05:51:52.7300.0802-0.261.2927.2
MTRZIV2020-07-04 05:51:48.6600.01100.021.512020-07-04 05:51:53.2800.1845-0.011.3429.0
SEIIV2020-07-04 05:51:50.2400.0170-0.091.722020-07-04 05:51:56.3900.11730.011.3739.7
RUFIIV2020-07-04 05:51:52.7600.0241-0.051.682020-07-04 05:52:00.2300.3888-0.370.8552.3
ASQUIV2020-07-04 05:51:53.6300.02610.390.392020-07-04 05:52:01.4240.1685-0.141.2855.3
POPMGU2020-07-04 05:51:57.3800.0381-0.241.342020-07-04 05:52:08.5700.2416-0.211.0580.5
CSNTIV2020-07-04 05:52:01.0600.04620.660.332020-07-04 05:52:13.0700.3237-0.090.9694.8
MAIMGU2020-07-04 05:52:01.4990.0200-0.211.352020-07-04 05:52:14.4040.0400-1.160.14104.9
VLCMN2020-07-04 05:52:02.9190.02000.780.262020-07-04 05:52:15.9190.0400-0.480.76106.3
PIIIV2020-07-04 05:52:02.8900.05420.011.332020-07-04 05:52:16.2010.0400-1.510.07112.3
EQUIGU2020-07-04 05:52:06.6180.02001.690.002020-07-04 05:52:20.6210.0400-0.360.89124.5
GRAMGU2020-07-04 05:52:08.0900.06530.560.442020-07-04 05:52:25.1350.0400-0.560.66133.2
DOSSST2020-07-04 05:52:13.5390.02000.630.412020-07-04 05:52:33.2180.1303-1.610.00185.4


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.		 Dist. (km) Azimuth
MTRZ IVHH2.544.59e+029.0286
SEI IVHH2.653.24e+039.7230
ASQU IVHH2.003.75e-155.3171
MAIM GUHH1.997.70e-2104.9249
VLC MNHH1.975.68e-2106.3264
PII IVHH2.068.58e-2112.3238
GRAM GUHH2.281.70e-1133.2282


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.
(°)
MTRZ IVHHZ5.5280e-51.0754e-59.5749e-69.3440e-64.9456e-61.4467e-44.7931e-55.4497e-64.5346e-729.0286
MTRZ IVHHN5.4247e-51.8904e-52.3856e-51.6349e-54.9434e-61.6724e-41.5284e-47.3067e-66.9137e-729.0286
MTRZ IVHHE6.3255e-53.4745e-53.2658e-52.9311e-51.0539e-51.9889e-41.5700e-41.2494e-51.2305e-629.0286
SEI IVHHZ5.8954e-52.0126e-51.7003e-57.5192e-63.0778e-69.4217e-51.3633e-44.0265e-65.6715e-739.7230
SEI IVHHN7.5931e-53.1871e-52.9993e-51.7187e-56.0582e-62.1571e-41.7962e-48.7404e-61.0317e-639.7230
SEI IVHHE4.1552e-51.2662e-51.4134e-55.9881e-62.3886e-69.3129e-59.9603e-53.1430e-63.7192e-739.7230
ASQU IVHHZ7.1425e-61.8645e-61.8587e-68.0726e-73.7918e-71.4449e-51.4213e-55.1187e-75.9237e-855.3171
ASQU IVHHN1.4115e-53.7420e-63.8809e-61.3591e-66.8645e-73.2358e-53.1171e-58.9645e-71.1317e-755.3171
ASQU IVHHE1.6636e-53.9388e-63.6038e-61.3923e-65.7168e-73.3136e-51.9928e-57.2074e-71.0380e-755.3171
POPM GUHHZ4.0424e-68.6966e-78.7387e-77.7580e-73.9342e-78.2981e-64.2440e-64.4012e-73.4592e-880.5253
POPM GUHHN7.3521e-61.7801e-61.9528e-61.0301e-63.6137e-71.7299e-51.1945e-54.3338e-74.8315e-880.5253
POPM GUHHE5.3476e-61.5999e-61.2630e-65.8926e-72.6853e-71.0999e-55.2754e-63.5106e-74.0914e-880.5253
MAIM GUHHZ8.4611e-74.1412e-73.0762e-73.8271e-71.8576e-72.2187e-61.9314e-61.9524e-71.7558e-8104.9249
MAIM GUHHN8.1439e-75.0973e-73.8331e-75.3411e-72.6093e-72.4137e-61.8239e-62.4537e-71.9755e-8104.9249
MAIM GUHHE6.6661e-72.4792e-72.5594e-72.8834e-71.4564e-72.0821e-61.4874e-61.3986e-71.0297e-8104.9249
VLC MNHHZ9.0181e-72.1767e-72.4486e-71.7511e-76.0786e-82.8832e-69.8887e-78.6215e-89.9320e-9106.3264
VLC MNHHN9.6660e-73.1580e-72.5124e-72.8197e-71.1886e-72.1104e-61.1495e-61.1397e-71.0428e-8106.3264
VLC MNHHE1.2328e-64.3449e-72.6413e-72.9309e-72.1481e-72.7289e-61.7692e-63.5497e-73.0937e-8106.3264
PII IVHHZ1.6482e-64.9448e-73.7684e-73.0942e-72.1747e-72.7725e-62.6193e-62.7006e-71.5038e-8112.3238
PII IVHHN1.1063e-65.2808e-75.1828e-73.5461e-71.7698e-71.9462e-64.3275e-62.4024e-72.0889e-8112.3238
PII IVHHE1.6392e-66.1256e-75.5780e-73.7749e-71.4930e-71.8267e-63.5273e-61.7173e-71.9496e-8112.3238
EQUI GUHHZ7.8726e-72.2952e-72.0649e-71.7356e-76.1841e-82.7954e-61.1042e-67.9061e-87.0650e-9124.5266
EQUI GUHHN2.0136e-71.1521e-78.0893e-81.0103e-75.7153e-84.9481e-75.9754e-77.1167e-85.1015e-9124.5266
EQUI GUHHE5.2991e-72.0511e-71.6356e-71.3497e-78.0772e-81.4233e-67.1989e-71.0919e-77.1097e-9124.5266
GRAM GUHHZ4.7575e-64.7211e-72.5403e-71.6570e-77.5991e-83.7647e-61.5450e-68.9662e-81.0075e-8133.2282
GRAM GUHHN1.0147e-51.0927e-65.6555e-71.0801e-67.9659e-74.8497e-62.2684e-69.7892e-75.2560e-8133.2282
GRAM GUHHE3.0877e-65.5716e-74.8940e-74.5591e-72.0338e-73.5126e-62.8430e-62.1354e-71.7895e-8133.2282
*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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