MANUAL Location - Area: Frignano , magnitude (ML): 1.0
2023-09-28 21:04:29 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2023-09-29 07:27:00

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Earthquake info - Manual location
Event - ID :230928210355
Magnitude (ML) :1.0 +/- 0.2
Origin Time :2023-09-28 21:04:29.96 (UTC)
Location : Latitude: 44.394 N, Longitude: 10.660 E
Area :Frignano
Depth (km) :24.76
Distances (km) : 5.2 --- Montefiorino
5.8 --- Prignano sulla Secchia
7.3 --- Polinago
7.9 --- Palagano
8.1 --- Toano
10.9 --- Serramazzoni
11.0 --- Lama Mocogno
12.6 --- Baiso
12.8 --- Frassinoro
13.3 --- Carpineti
14.2 --- Castellarano
15.3 --- Pavullo nel Frignano
15.7 --- Villa Minozzo
16.7 --- Montecreto
17.3 --- Viano
18.0 --- Riolunato
18.2 --- Casina
19.1 --- Sassuolo
20.2 --- Sestola
20.3 --- Fiorano Modenese

Quality location estimate: Erh: 1.5 km, Erz: 1.7 km, Nf: 22, Gap: 178 °, Rms: 0.15


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.
GSCLGU2023-09-28 21:04:33.5600.0140-1.620.002023-09-28 21:04:35.7120.0400-3.290.0026.5
ZCCAIV2023-09-28 21:04:37.3300.0190-0.021.622023-09-28 21:04:44.0230.04000.930.0336.1
SARMGU2023-09-28 21:04:37.1500.0211-0.041.562023-09-28 21:04:42.8040.04000.320.8140.5
BDIIV2023-09-28 21:04:38.2600.02410.151.412023-09-28 21:04:43.9100.1243-0.141.1345.2
POPMGU2023-09-28 21:04:38.7400.02510.231.132023-09-28 21:04:44.9600.13340.101.3546.9
CARDGU2023-09-28 21:04:38.9490.02710.031.642023-09-28 21:04:45.3400.1404-0.031.3050.1
EQUIGU2023-09-28 21:04:39.3400.0281-0.210.802023-09-28 21:04:46.1550.1002-0.161.0753.9
GRAMGU2023-09-28 21:04:39.1880.0200-0.730.042023-09-28 21:04:47.2060.04000.091.4154.8
MAIMGU2023-09-28 21:04:40.7300.03210.041.612023-09-28 21:04:48.8000.26170.430.6760.5
PLMAIV2023-09-28 21:04:43.8560.02000.211.222023-09-28 21:04:53.5330.04000.251.0378.8
PIIIV2023-09-28 21:04:44.0220.0200-0.061.412023-09-28 21:04:54.0200.2376-0.280.7779.4


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
GSCL GUHH1.202.48e-126.5230
ZCCA IVHH1.019.00e-236.1101
SARM GUEH1.039.10e-240.5222
BDI IVHH1.291.38e-145.2188
POPM GUHH1.131.43e-146.9169
CARD GUHH1.095.65e-250.1199
EQUI GUHH0.732.12e-253.9238
GRAM GUHH0.986.54e-254.8283
MAIM GUHH0.781.66e-260.5194
PLMA IVHH0.971.58e-278.8240
PII IVHH1.092.09e-279.4188


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 GUHHZ1.3142e-52.0637e-61.2178e-66.9781e-76.2072e-72.4532e-58.9027e-61.0281e-65.7738e-826.5230
GSCL GUHHN1.0575e-52.4256e-62.8394e-61.1412e-65.2515e-72.5799e-51.2714e-55.9972e-76.9837e-826.5230
GSCL GUHHE8.3600e-61.8585e-62.1000e-67.0202e-73.6829e-72.7731e-51.1775e-54.5636e-75.4760e-826.5230
ZCCA IVHHZ2.0335e-63.7624e-74.0772e-71.9396e-77.2398e-84.8029e-63.5339e-68.1544e-81.2699e-836.1101
ZCCA IVHHN1.3896e-66.5346e-77.2258e-74.9388e-71.7524e-73.3012e-66.4911e-62.0312e-72.1703e-836.1101
ZCCA IVHHE1.9836e-64.6223e-74.9902e-73.6888e-71.3975e-73.3074e-63.7910e-61.7535e-71.9090e-836.1101
SARM GUEHZ1.3593e-52.2646e-65.9330e-71.4890e-76.5078e-82.3390e-52.2614e-61.1019e-72.8289e-840.5222
SARM GUEHN7.9949e-61.2303e-65.7288e-72.5888e-71.2067e-71.9824e-51.9277e-61.5165e-72.3555e-840.5222
SARM GUEHE8.4002e-61.0691e-67.4919e-73.1379e-71.4617e-71.1401e-54.9220e-61.9596e-72.4392e-840.5222
BDI IVHHZ5.9363e-68.2596e-75.4194e-72.0366e-78.8221e-88.9580e-62.3109e-61.3164e-71.5364e-845.2188
BDI IVHHN5.0125e-61.6888e-61.2999e-64.7802e-71.9886e-72.0703e-58.5748e-62.6243e-73.9766e-845.2188
BDI IVHHE5.0248e-61.0932e-67.8659e-72.9743e-71.4281e-71.8348e-56.3948e-62.0134e-73.0440e-845.2188
POPM GUHHZ3.5003e-66.9992e-75.9436e-73.0780e-71.2361e-71.5078e-52.8117e-61.5978e-71.6724e-846.9169
POPM GUHHN4.5301e-61.6239e-61.2056e-65.6002e-72.1771e-71.2399e-57.2085e-63.1462e-74.1939e-846.9169
POPM GUHHE3.6314e-61.0118e-68.5216e-74.1961e-71.8473e-71.8591e-56.1831e-62.3162e-72.9311e-846.9169
CARD GUHHZ2.7832e-63.8568e-71.9951e-78.6136e-84.8096e-85.8797e-69.7395e-76.5986e-87.5032e-950.1199
CARD GUHHN4.0252e-67.1341e-74.3591e-71.2460e-76.3423e-81.0820e-51.8703e-69.7306e-81.6923e-850.1199
CARD GUHHE4.6452e-61.0102e-64.9578e-71.2491e-76.3455e-81.7745e-51.3560e-61.0750e-72.1218e-850.1199
EQUI GUHHZ7.9843e-71.5345e-71.4964e-76.9532e-83.2665e-81.8439e-61.0565e-64.1279e-84.6168e-953.9238
EQUI GUHHN5.0452e-71.1364e-71.1783e-77.2069e-85.2619e-81.3120e-66.7560e-75.7826e-83.8800e-953.9238
EQUI GUHHE5.4941e-71.3018e-79.8247e-81.0992e-71.1964e-71.2954e-64.5414e-72.1531e-71.1729e-853.9238
GRAM GUHHZ3.1552e-64.7546e-73.0328e-71.0042e-74.5459e-83.9716e-61.2916e-65.9557e-88.8419e-954.8283
GRAM GUHHN3.9494e-67.7568e-76.5495e-72.1308e-78.9907e-89.5356e-62.8658e-61.3858e-71.8951e-854.8283
GRAM GUHHE4.2526e-66.9771e-76.8230e-72.7211e-71.0735e-76.3705e-64.6755e-61.4410e-71.6841e-854.8283
MAIM GUHHZ4.7682e-71.0741e-79.2948e-85.1139e-82.0863e-81.2513e-66.9693e-73.1303e-84.1661e-960.5194
MAIM GUHHN6.8567e-71.6318e-71.7726e-71.0622e-73.6255e-82.3883e-61.3202e-63.3520e-84.5481e-960.5194
MAIM GUHHE6.7967e-71.4497e-71.3334e-77.6139e-83.6474e-81.6315e-66.6005e-74.7909e-84.6818e-960.5194
PLMA IVHHZ3.9428e-78.5123e-86.8594e-85.4980e-83.4251e-88.7444e-73.6692e-74.1616e-82.6715e-978.8240
PLMA IVHHN5.2396e-71.6513e-71.3587e-78.8285e-84.2072e-82.0881e-68.0712e-74.1483e-84.0890e-978.8240
PLMA IVHHE3.9784e-79.9271e-87.7545e-87.0007e-84.8331e-81.1031e-64.4730e-74.3623e-83.3214e-978.8240
PII IVHHZ4.7100e-71.0820e-79.8095e-83.9815e-82.0796e-81.3361e-64.0541e-72.6939e-83.3874e-979.4188
PII IVHHN5.5707e-71.3394e-71.3846e-74.8611e-81.9429e-81.7413e-68.0985e-72.6129e-83.6569e-979.4188
PII IVHHE6.8319e-72.0286e-71.9086e-77.5532e-83.0147e-81.7050e-61.1670e-64.0196e-85.5946e-979.4188
*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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