MANUAL Location - Area: Appennino modenese , magnitude (ML): 1.6
2021-02-28 14:35:15 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2021-03-01 08:24:31

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Earthquake info - Manual location
Event - ID :210228143431
Magnitude (ML) :1.6 +/- 0.2
Origin Time :2021-02-28 14:35:15.12 (UTC)
Location : Latitude: 44.215 N, Longitude: 10.957 E
Area :Appennino modenese
Depth (km) :53.66
Distances (km) : 2.7 --- Gaggio Montano
6.4 --- Montese
6.6 --- Porretta Terme
7.7 --- Lizzano in Belvedere
8.2 --- Castel d Aiano
8.6 --- Castel di Casio
11.7 --- Camugnano
12.7 --- Granaglione
12.8 --- Sambuca Pistoiese
12.9 --- Fanano
14.6 --- Vergato
14.9 --- Sestola
15.1 --- Zocca
16.4 --- Grizzana Morandi
16.6 --- Pavullo nel Frignano
18.2 --- Castiglione dei Pepoli
19.4 --- Montecreto
20.3 --- Cutigliano
20.8 --- Lama Mocogno
21.7 --- Savigno

Quality location estimate: Erh: 1.4 km, Erz: 1.5 km, Nf: 30, Gap: 137 °, Rms: 0.18


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.
POPMGU2021-02-28 14:35:24.6600.03110.071.472021-02-28 14:35:31.7600.17650.330.8859.5
GSCLGU2021-02-28 14:35:25.0200.0321-1.200.042021-02-28 14:35:31.4730.0400-3.040.0063.6
BDIIV2021-02-28 14:35:25.1300.0331-0.101.312021-02-28 14:35:31.9670.4519-0.500.5363.9
SEIIV2021-02-28 14:35:26.1400.03410.291.002021-02-28 14:35:34.1400.21560.091.1165.5
MTRZIV2021-02-28 14:35:26.5600.0341-0.101.282021-02-28 14:35:35.7480.04000.261.0566.7
CARDGU2021-02-28 14:35:25.8700.0361-0.081.352021-02-28 14:35:33.5800.2066-0.081.0769.3
SARMGU2021-02-28 14:35:26.1600.0361-0.181.062021-02-28 14:35:34.5100.21260.111.1170.5
VLCMN2021-02-28 14:35:26.2700.0361-0.061.382021-02-28 14:35:34.5740.04000.201.1771.1
MAIMGU2021-02-28 14:35:26.6600.03810.141.372021-02-28 14:35:34.1400.4269-0.520.5173.6
RUFIIV2021-02-28 14:35:28.2900.13960.300.962021-02-28 14:35:37.4600.2436-0.120.9681.1
LMDIV2021-02-28 14:35:29.0700.0432-0.081.312021-02-28 14:35:39.5850.2496-0.110.9581.8
EQUIGU2021-02-28 14:35:28.5000.04220.281.032021-02-28 14:35:37.5600.25070.081.0284.0
PIIIV2021-02-28 14:35:28.3400.04420.071.422021-02-28 14:35:37.1600.2537-0.670.3184.2
CSNTIV2021-02-28 14:35:31.2140.02000.111.362021-02-28 14:35:42.6150.3117-0.030.89101.9
PLMAGU2021-02-28 14:35:31.0390.02000.081.382021-02-28 14:35:42.5700.34870.340.73104.7


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
POPM GUHH1.481.98e-159.5220
GSCL GUHH1.671.29e-163.6297
BDI IVHH1.621.44e-163.9240
SEI IVHH1.751.47e-165.5119
MTRZ IVHH1.651.11e-166.774
CARD GUHH2.223.86e-169.3241
SARM GUEH1.315.47e-270.5266
VLC MNHH1.303.11e-271.1262
MAIM GUHH1.384.36e-273.6228
EQUI GUHH1.403.77e-284.0265
PII IVHH1.545.20e-284.2212
PLMA GUHH1.825.81e-2104.7259


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.
(°)
POPM GUHHZ1.9703e-52.8021e-69.3958e-74.2340e-71.4894e-72.6916e-55.1069e-62.0245e-73.8183e-859.5220
POPM GUHHN1.5169e-52.1281e-61.8771e-66.7764e-73.0797e-71.8558e-51.1281e-54.3314e-75.3766e-859.5220
POPM GUHHE1.0627e-51.8713e-61.4438e-64.4323e-72.2409e-71.6139e-58.9277e-63.4164e-74.8032e-859.5220
GSCL GUHHZ2.2060e-62.7523e-72.6464e-72.0284e-71.0768e-72.1096e-61.5394e-61.5870e-79.1648e-963.6297
GSCL GUHHN2.7129e-61.0236e-69.2968e-74.9702e-71.6960e-75.1990e-64.0718e-62.2928e-73.0436e-863.6297
GSCL GUHHE2.5602e-68.8980e-78.1977e-75.9892e-72.1157e-73.4577e-64.4159e-62.6891e-72.9771e-863.6297
BDI IVHHZ8.4550e-61.5057e-65.7443e-71.9084e-71.0436e-71.2117e-52.1188e-61.5571e-72.2317e-863.9240
BDI IVHHN9.9343e-61.4921e-61.0214e-64.3183e-72.1110e-71.9147e-53.6320e-62.6131e-73.7075e-863.9240
BDI IVHHE2.7452e-52.4415e-61.1940e-65.4453e-72.0202e-71.7947e-56.0296e-62.4715e-74.1864e-863.9240
SEI IVHHZ1.8929e-66.7836e-78.4389e-74.4253e-71.5935e-74.7594e-66.1995e-61.9703e-72.1100e-865.5119
SEI IVHHN2.3820e-61.1126e-61.3405e-68.3500e-72.6311e-74.1458e-67.2362e-63.5419e-73.6736e-865.5119
SEI IVHHE3.0266e-61.0936e-61.0858e-68.0770e-72.9353e-74.7546e-66.0515e-63.5284e-73.9974e-865.5119
MTRZ IVHHZ3.1234e-67.6599e-74.4552e-73.5597e-71.3204e-74.1856e-62.8652e-61.4882e-71.3166e-866.774
MTRZ IVHHN2.8953e-68.7239e-79.3441e-76.5248e-72.0060e-75.5870e-65.1596e-62.3923e-72.8457e-866.774
MTRZ IVHHE4.6355e-61.0721e-68.8603e-75.5041e-72.4930e-76.5354e-65.1453e-62.6302e-72.9578e-866.774
CARD GUHHZ1.2532e-52.0878e-69.9196e-72.6842e-71.3849e-72.9698e-53.6925e-62.5279e-75.0266e-869.3241
CARD GUHHN3.2947e-56.4857e-63.4971e-67.7403e-74.8949e-71.0481e-41.3326e-58.0684e-71.5229e-769.3241
CARD GUHHE2.3274e-54.4517e-62.9099e-66.7708e-73.1740e-76.1334e-59.0561e-65.2583e-71.0697e-769.3241
SARM GUEHZ1.2070e-63.4370e-72.7898e-71.1309e-75.1169e-83.1749e-61.2414e-66.9831e-89.8310e-970.5266
SARM GUEHN1.3973e-63.3279e-73.0731e-72.1165e-78.6834e-82.8922e-61.2600e-61.0764e-79.1258e-970.5266
SARM GUEHE1.5401e-65.0121e-73.6009e-72.9164e-71.2714e-72.9243e-61.2951e-61.5651e-71.4225e-870.5266
VLC MNHHZ3.1875e-66.0763e-72.9273e-79.0826e-85.3332e-87.4221e-69.1880e-78.2197e-81.3358e-871.1262
VLC MNHHN1.9985e-63.6891e-72.5505e-71.0281e-75.6568e-84.5717e-61.8311e-68.0173e-81.0799e-871.1262
VLC MNHHE2.0368e-63.7693e-72.5825e-71.1804e-76.2500e-84.3576e-61.4188e-68.2635e-89.3995e-971.1262
MAIM GUHHZ4.2220e-68.8026e-73.8844e-71.3142e-76.3339e-81.4337e-51.5021e-61.0204e-72.0415e-873.6228
MAIM GUHHN3.4742e-66.3844e-74.9103e-71.4806e-77.1789e-81.1374e-52.7318e-69.8468e-81.6243e-873.6228
MAIM GUHHE2.0741e-62.9116e-71.9054e-77.4041e-83.5615e-87.9854e-69.3412e-75.8484e-86.9167e-973.6228
EQUI GUHHZ1.9517e-63.2795e-72.7162e-71.3278e-74.6570e-85.2245e-61.5969e-65.9180e-87.4553e-984.0265
EQUI GUHHN8.7808e-71.7707e-71.2518e-75.6704e-82.2442e-82.6868e-67.9370e-72.7901e-83.9667e-984.0265
EQUI GUHHE1.7090e-64.9168e-73.4058e-71.5055e-78.1117e-84.9784e-61.5380e-68.7780e-81.3254e-884.0265
PII IVHHZ2.9663e-65.5752e-74.2868e-78.1609e-84.4796e-85.5459e-62.0570e-67.1925e-81.3587e-884.2212
PII IVHHN3.0807e-66.1375e-74.4688e-71.3061e-76.5496e-89.1141e-62.3940e-69.1614e-81.4739e-884.2212
PII IVHHE3.5075e-65.7258e-74.9260e-71.5479e-77.6511e-87.3996e-62.5498e-61.1088e-71.5806e-884.2212
PLMA GUHHZ1.2557e-62.4161e-72.0651e-71.0191e-76.0429e-84.7045e-61.4324e-67.9176e-87.5846e-9104.7259
PLMA GUHHN2.9442e-67.0870e-74.8092e-71.6999e-78.6043e-87.0776e-62.6175e-61.1376e-71.6868e-8104.7259
PLMA GUHHE1.8922e-63.5371e-73.1629e-71.6983e-77.9333e-85.1321e-61.2017e-69.5288e-81.0742e-8104.7259
*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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