MANUAL Location - Area: Lunigiana , magnitude (ML): 1.5
2021-07-17 02:59:37 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2021-07-19 09:57:47

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Earthquake info - Manual location
Event - ID :210717025827
Magnitude (ML) :1.5 +/- 0.2
Origin Time :2021-07-17 02:59:37.018 (UTC)
Location : Latitude: 44.212 N, Longitude: 10.059 E
Area :Lunigiana
Depth (km) :3.95
Distances (km) : 6.1 --- Fivizzano
6.3 --- Licciana Nardi
7.2 --- Aulla
8.9 --- Fosdinovo
9.3 --- Casola in Lunigiana
9.3 --- Podenzana
9.7 --- Tresana
10.5 --- Comano
12.5 --- Villafranca in Lunigiana
12.7 --- Minucciano
12.7 --- Santo Stefano di Magra
12.8 --- Bagnone
12.8 --- Castelnuovo Magra
13.3 --- Bolano
13.5 --- Ortonovo
13.5 --- Sarzana
15.0 --- Giuncugnano
15.8 --- Arcola
15.9 --- Vezzano Ligure
16.6 --- Filattiera

Quality location estimate: Erh: 1 km, Erz: 0.9 km, Nf: 34, Gap: 77 °, Rms: 0.20


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.
FIVIGU2021-07-17 02:59:38.8540.02000.012.002021-07-17 02:59:40.0590.0400-0.031.867.6
EQUIGU2021-07-17 02:59:39.4600.00500.071.772021-07-17 02:59:41.3190.03900.270.9310.0
PLMAGU2021-07-17 02:59:41.8700.0140-0.011.992021-07-17 02:59:45.0100.0812-0.380.5624.7
SARMGU2021-07-17 02:59:42.4700.0130-0.190.802021-07-17 02:59:46.7100.0882-0.041.6027.9
GRAMGU2021-07-17 02:59:42.7900.0150-0.041.852021-07-17 02:59:46.8430.04000.191.3231.4
CARDGU2021-07-17 02:59:44.6100.01900.221.122021-07-17 02:59:49.7090.1925-0.071.3039.8
MSSAIV2021-07-17 02:59:44.7800.1055-0.620.402021-07-17 02:59:50.4150.1344-1.140.1844.9
GSCLGU2021-07-17 02:59:45.6400.0211-0.460.502021-07-17 02:59:52.0400.1344-0.740.3445.1
BDIIV2021-07-17 02:59:45.5700.0753-0.051.622021-07-17 02:59:52.0500.14540.111.3746.3
MAIMGU2021-07-17 02:59:46.0000.02410.111.632021-07-17 02:59:52.3900.1544-0.101.2948.1
POPMGU2021-07-17 02:59:47.6500.0291-0.051.662021-07-17 02:59:55.7900.18350.161.1958.9
PIIIV2021-07-17 02:59:48.5800.0331-0.500.502021-07-17 02:59:56.8200.2096-1.260.1766.1
GORRGU2021-07-17 02:59:50.5500.03810.171.382021-07-17 02:59:58.9550.7129-1.660.1675.2
RNCAGU2021-07-17 02:59:53.6700.04720.590.262021-07-17 03:00:03.5600.4839-1.130.3092.8
SEIIV2021-07-17 02:59:57.1420.02001.460.002021-07-17 03:00:10.2440.04000.510.59105.2
RUFIIV2021-07-17 02:59:59.0250.02000.061.382021-07-17 03:00:13.9010.0400-0.930.33123.2
PCPGU2021-07-17 02:59:58.6000.06430.450.592021-07-17 03:00:13.0900.04000.121.06125.8


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
FIVI GUHN1.444.02e+07.661
PLMA GUHH1.444.88e-124.7222
SARM GUEH1.232.92e-127.996
GRAM GUHH1.638.82e-131.41
CARD GUHH1.482.18e-139.8121
GSCL GUHH1.572.10e-145.170
BDI IVHH1.159.60e-246.3111
MAIM GUHH1.217.21e-248.1134
POPM GUHH1.431.80e-158.9108
PII IVHH1.426.78e-266.1145
GORR GUHH1.364.38e-275.2306
RNCA GUHH1.685.76e-292.8289
SEI IVHH1.968.07e-2105.299
PCP GUHH1.301.25e-2125.8287


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.
(°)
FIVI GUHNZ1.9564e-42.9852e-51.8654e-57.2279e-63.1692e-64.2408e-47.6499e-54.8247e-66.9315e-77.661
FIVI GUHNN2.1231e-45.7804e-53.6443e-51.2886e-56.5308e-64.8939e-41.7072e-49.3416e-61.2961e-67.661
FIVI GUHNE1.8911e-44.3009e-53.3954e-51.3776e-56.3366e-68.2379e-41.6438e-49.1179e-61.3274e-67.661
EQUI GUHHZ6.3894e-59.5311e-65.6354e-62.0644e-61.0607e-61.5492e-42.2449e-51.6570e-62.2233e-710.0124
EQUI GUHHN7.1869e-59.8184e-62.5607e-61.0769e-66.9292e-71.2498e-49.7292e-61.2974e-62.3599e-710.0124
EQUI GUHHE1.3540e-41.8986e-56.2086e-62.3394e-61.3944e-63.2216e-43.5508e-51.9668e-63.5943e-710.0124
PLMA GUHHZ3.8047e-55.2534e-61.4324e-65.2783e-72.2904e-75.9711e-56.6481e-64.7475e-71.1284e-724.7222
PLMA GUHHN4.9550e-55.2069e-62.8129e-69.5686e-75.1121e-78.4140e-51.5081e-57.8843e-71.2533e-724.7222
PLMA GUHHE4.2417e-57.0014e-63.4525e-61.2119e-66.4439e-71.3368e-42.0521e-51.0422e-61.9385e-724.7222
SARM GUEHZ1.2933e-52.3877e-61.6748e-66.3169e-72.5150e-73.6996e-51.4552e-53.5921e-75.9087e-827.996
SARM GUEHN1.4209e-52.7144e-62.0688e-61.0527e-64.5181e-75.1514e-56.7001e-66.5116e-79.0950e-827.996
SARM GUEHE1.1503e-52.5324e-62.0654e-61.0574e-64.9762e-74.2889e-51.6318e-57.2933e-78.5082e-827.996
GRAM GUHHZ2.8809e-54.1892e-63.3406e-61.0072e-65.5302e-75.4190e-52.0595e-58.9493e-71.1505e-731.41
GRAM GUHHN3.6892e-57.8461e-66.9757e-61.6399e-68.8751e-71.1715e-43.6891e-51.3049e-62.0054e-731.41
GRAM GUHHE3.8833e-59.7239e-68.6163e-62.3626e-69.8222e-77.4349e-55.9851e-51.4656e-62.3783e-731.41
CARD GUHHZ2.2523e-52.7122e-68.0077e-72.6131e-71.3511e-75.3339e-52.9535e-62.3447e-75.3782e-839.8121
CARD GUHHN3.8869e-54.0351e-61.8967e-64.9741e-73.5432e-77.8551e-56.0098e-65.4161e-79.1015e-839.8121
CARD GUHHE3.0747e-54.1417e-62.0499e-64.7070e-72.5530e-77.4047e-56.1329e-64.9301e-79.7625e-839.8121
MSSA IVHHZ2.9164e-52.9784e-65.2661e-72.0728e-71.0507e-73.0588e-51.9142e-62.1357e-75.3850e-844.9285
MSSA IVHHN5.6603e-58.6118e-63.1784e-66.8016e-74.2253e-73.0648e-47.7544e-67.9382e-71.8584e-744.9285
MSSA IVHHE7.2145e-51.0510e-54.3499e-68.9425e-75.5891e-74.1638e-41.0325e-51.0789e-62.4547e-744.9285
GSCL GUHHZ3.1344e-69.4106e-76.5812e-72.9010e-71.3070e-71.1664e-53.6469e-61.6621e-72.3737e-845.170
GSCL GUHHN5.8001e-61.7854e-61.8053e-67.0610e-72.6391e-71.6702e-51.1214e-53.5603e-75.1116e-845.170
GSCL GUHHE8.4961e-62.1905e-61.9201e-67.5178e-73.2231e-71.8609e-51.2331e-54.3707e-75.7715e-845.170
BDI IVHHZ9.1484e-61.0162e-65.2753e-71.5947e-78.3024e-81.9909e-52.6497e-61.2615e-72.4219e-846.3111
BDI IVHHN1.1484e-51.8524e-69.9761e-72.8115e-71.4722e-73.6941e-54.9460e-62.1769e-74.3529e-846.3111
BDI IVHHE1.0614e-51.4613e-69.1166e-72.8774e-71.3033e-73.7028e-53.9968e-61.6672e-73.2689e-846.3111
MAIM GUHHZ7.8014e-61.2882e-69.8569e-73.8648e-71.6415e-72.0425e-56.3847e-62.0759e-73.4928e-848.1134
MAIM GUHHN1.0782e-51.4679e-67.6802e-72.8839e-71.1848e-72.1473e-53.0995e-61.5323e-72.9296e-848.1134
MAIM GUHHE5.4127e-67.5362e-75.2679e-72.8585e-71.2280e-71.3182e-53.0945e-61.5057e-72.1922e-848.1134
POPM GUHHZ1.0830e-51.6792e-68.3966e-71.9871e-79.2720e-82.8457e-54.2882e-61.5322e-73.5999e-858.9108
POPM GUHHN1.2997e-52.6343e-61.7697e-64.6458e-72.4182e-73.8180e-56.1249e-63.5510e-75.8019e-858.9108
POPM GUHHE1.1911e-52.5566e-61.6415e-63.9274e-71.9520e-72.8710e-57.6197e-63.1636e-74.9635e-858.9108
PII IVHHZ3.9834e-67.8804e-75.4581e-71.5748e-79.0308e-87.6848e-62.2222e-61.4823e-71.9020e-866.1145
PII IVHHN6.1094e-68.6246e-76.3578e-71.7516e-78.1483e-81.6677e-52.9068e-61.2673e-72.1366e-866.1145
PII IVHHE4.9397e-69.7892e-76.5868e-72.3235e-78.9544e-82.4107e-53.0826e-61.3768e-72.2508e-866.1145
GORR GUHHZ1.9475e-63.5481e-72.5897e-79.8664e-85.1364e-87.2431e-61.2908e-66.2194e-81.0341e-875.2306
GORR GUHHN3.1038e-65.6526e-73.8055e-71.1127e-75.6193e-87.6510e-62.3797e-66.9706e-81.3665e-875.2306
GORR GUHHE2.5583e-65.1373e-74.1164e-71.4901e-77.4349e-81.1412e-52.8804e-69.0739e-81.4586e-875.2306
RNCA GUHHZ2.3147e-65.0711e-73.2579e-79.6445e-84.0911e-86.7497e-61.8586e-65.3684e-81.0817e-892.8289
RNCA GUHHN2.9704e-65.9461e-74.1325e-71.4766e-76.7298e-89.1848e-61.6814e-69.1632e-81.3796e-892.8289
RNCA GUHHE3.6726e-66.8585e-75.4481e-72.0959e-79.3930e-81.0854e-52.9392e-61.1491e-71.7576e-892.8289
SEI IVHHZ1.0102e-63.3051e-73.2955e-71.9223e-76.5761e-81.9928e-62.0354e-68.3662e-81.0881e-8105.299
SEI IVHHN1.4553e-64.5904e-75.2034e-75.7695e-72.0745e-71.9909e-62.0973e-62.4215e-72.3997e-8105.299
SEI IVHHE2.2910e-64.2374e-73.0040e-72.1084e-78.3468e-82.6919e-62.4362e-61.0480e-71.0938e-8105.299
PCP GUHHZ4.0891e-77.8458e-87.8034e-83.8414e-82.1076e-81.4545e-64.0801e-73.8249e-82.2949e-9125.8287
PCP GUHHN7.4162e-71.6793e-71.0274e-73.6920e-82.3998e-82.0148e-65.3765e-73.2230e-84.7328e-9125.8287
PCP GUHHE6.3435e-71.3248e-78.1031e-82.3985e-81.5803e-82.0336e-64.1049e-72.4781e-82.9457e-9125.8287
*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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