MANUAL Location - Area: Alpi Pennine , magnitude (ML): 0.4
2021-10-18 19:47:28 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2021-10-19 06:44:33

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Earthquake info - Manual location
Event - ID :211018194703
Magnitude (ML) :0.4 +/- 0.2
Origin Time :2021-10-18 19:47:28.416 (UTC)
Location : Latitude: 45.942 N, Longitude: 7.690 E
Area :Alpi Pennine
Depth (km) :5.68
Distances (km) : 8.8 --- Valtournenche
12.5 --- Chamois
14.3 --- Ayas
15.6 --- La Magdeleine
16.2 --- Gressoney-la-Trinite
16.9 --- Antey-Saint-Andre
18.0 --- Torgnon
20.5 --- Brusson
20.8 --- Gressoney-Saint-Jean
21.3 --- Saint-Vincent
21.4 --- Alagna Valsesia
21.8 --- Macugnaga
21.9 --- Bionaz
22.2 --- Chatillon
23.3 --- Verrayes
23.4 --- Saint-Denis
23.7 --- Pontey
23.9 --- Riva Valdobbia
24.0 --- Emarese
24.4 --- Chambave

Quality location estimate: Erh: 0.7 km, Erz: 0.9 km, Nf: 24, Gap: 57 °, Rms: 0.32


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.
SATIGU2021-10-18 19:47:32.4000.0080-0.011.822021-10-18 19:47:34.3200.0451-0.850.6617.9
MMKCH2021-10-18 19:47:33.7400.01300.261.012021-10-18 19:47:36.4450.0722-0.470.2925.7
DIXCH2021-10-18 19:47:34.0650.01700.001.812021-10-18 19:47:37.1800.0852-0.700.5628.1
VANNICH2021-10-18 19:47:34.8920.01700.500.222021-10-18 19:47:38.4830.09620.061.5131.5
EMBDCH2021-10-18 19:47:34.8940.0602-0.021.652021-10-18 19:47:38.4730.0400-0.820.6633.1
CIROGU2021-10-18 19:47:35.9700.0241-0.140.922021-10-18 19:47:40.4470.1775-1.040.4439.8
SIMPLCH2021-10-18 19:47:36.4840.02000.001.702021-10-18 19:47:41.0650.2787-0.950.4842.4
REMYGU2021-10-18 19:47:36.6500.02210.031.692021-10-18 19:47:41.6900.3267-0.850.5243.6
TRAVGU2021-10-18 19:47:37.4160.02000.261.062021-10-18 19:47:43.2500.04000.111.4448.4
MRGEIV2021-10-18 19:47:38.1600.08440.151.392021-10-18 19:47:43.9530.0400-1.010.4852.8
FIESACH2021-10-18 19:47:40.3680.02000.300.962021-10-18 19:47:48.0470.1002-0.101.1164.2
LSDGU2021-10-18 19:47:40.8720.08030.340.872021-10-18 19:47:48.6300.2597-0.370.7669.3


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
SATI GUHH1.032.00e-117.9118
MMK CHHH0.482.71e-225.760
VANNICHHH0.463.27e-231.5347
CIRO GUHH0.287.34e-339.8194
REMY GUHH0.361.39e-243.6254
TRAV GUHH0.219.28e-348.4175
MRGE IVHH0.367.91e-352.8249
FIESACHHH0.477.93e-364.230
LSD GUHH0.385.56e-369.3219


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.
(°)
SATI GUHHZ1.5688e-51.9601e-65.3643e-71.6516e-79.3193e-82.0774e-52.1105e-61.6783e-74.1678e-817.9118
SATI GUHHN5.5899e-55.8046e-61.3493e-63.5951e-72.1197e-77.1460e-55.9680e-64.2533e-71.1647e-717.9118
SATI GUHHE1.7231e-52.4395e-67.7534e-72.0553e-71.1713e-74.9778e-52.6455e-62.0812e-74.6242e-817.9118
MMK CHHHZ3.4886e-63.3793e-71.3798e-75.2702e-81.9792e-84.7215e-65.0341e-73.1021e-87.7176e-925.760
MMK CHHHN4.1021e-66.6833e-71.8890e-76.4993e-83.6801e-81.0112e-56.4399e-75.6197e-81.3546e-825.760
MMK CHHHE4.3788e-63.2829e-79.5198e-83.9468e-81.7185e-83.7240e-63.4509e-72.4684e-86.5896e-925.760
DIX CHHHZ1.9663e-51.8351e-68.6261e-72.4003e-71.1916e-73.0178e-54.8546e-62.0303e-74.3816e-828.1305
DIX CHHHN3.6841e-54.2811e-61.5904e-65.3633e-72.7092e-75.1717e-59.2414e-64.2007e-79.4637e-828.1305
DIX CHHHE2.5082e-52.3263e-61.0829e-64.5871e-71.8760e-72.3625e-56.1222e-62.8329e-76.1173e-828.1305
VANNICHHHZ3.5855e-63.3408e-71.2818e-73.9605e-81.7313e-83.2339e-64.8598e-73.2415e-85.9893e-931.5347
VANNICHHHN2.1054e-62.5278e-71.1534e-73.1935e-81.5428e-84.2302e-67.6035e-72.7805e-85.3541e-931.5347
VANNICHHHE3.2857e-64.6934e-72.5588e-71.1355e-74.3813e-84.0576e-61.0675e-66.4130e-81.1649e-831.5347
EMBD CHHHZ1.3306e-61.5776e-76.2242e-82.1313e-81.0479e-81.9551e-62.5260e-71.8030e-82.9932e-933.120
EMBD CHHHN1.2488e-61.3231e-74.6223e-81.5220e-89.0096e-91.7517e-62.5250e-71.5761e-83.0620e-933.120
EMBD CHHHE1.3053e-61.1770e-75.1711e-81.8120e-88.7752e-91.2929e-62.1864e-71.3554e-82.2611e-933.120
CIRO GUHHZ1.1916e-62.0364e-75.9909e-82.0270e-81.0780e-83.8899e-62.4556e-71.6574e-84.1472e-939.8194
CIRO GUHHN1.5808e-61.4714e-74.7980e-81.6838e-87.3131e-92.2552e-61.9148e-71.3103e-82.8025e-939.8194
CIRO GUHHE1.9778e-61.9924e-75.2618e-82.7869e-81.1933e-82.2937e-62.4907e-71.5729e-83.6065e-939.8194
SIMPLCHHHZ1.9069e-61.6116e-75.6098e-81.8464e-81.0561e-81.7613e-62.4162e-72.2037e-83.8246e-942.437
SIMPLCHHHN1.5139e-61.4640e-75.5202e-82.0490e-89.3421e-92.0995e-62.7892e-71.7402e-83.1139e-942.437
SIMPLCHHHE1.3580e-61.4998e-74.8881e-81.5886e-89.8998e-92.3658e-62.4023e-71.7431e-82.9527e-942.437
REMY GUHHZ6.6781e-65.7929e-79.3714e-83.4423e-82.5986e-82.8168e-64.8669e-74.4427e-86.8042e-943.6254
REMY GUHHN4.0446e-63.5928e-71.2868e-73.9003e-81.8108e-84.5689e-65.0530e-72.9853e-86.7380e-943.6254
REMY GUHHE5.6009e-65.9448e-79.1967e-83.2883e-81.8689e-84.6541e-63.6683e-72.7778e-85.8182e-943.6254
TRAV GUHHZ8.8842e-71.0632e-74.3756e-81.7326e-88.2149e-91.7031e-61.8236e-71.2772e-82.5001e-948.4175
TRAV GUHHN1.7825e-61.9448e-76.8783e-82.0990e-81.0138e-83.0099e-63.5578e-71.8437e-84.1996e-948.4175
TRAV GUHHE1.4906e-61.5514e-76.2926e-81.8768e-81.1442e-82.9143e-62.6972e-71.9044e-83.4419e-948.4175
MRGE IVHHZ1.6514e-61.4260e-73.0944e-81.2255e-86.7005e-91.2167e-61.4684e-71.1197e-82.6198e-952.8249
MRGE IVHHN2.9408e-62.7092e-74.6075e-81.6112e-81.0180e-83.3221e-61.8727e-71.6517e-84.7476e-952.8249
MRGE IVHHE2.5364e-61.9147e-73.5806e-81.5005e-89.6501e-91.6630e-61.7304e-71.6718e-83.3306e-952.8249
FIESACHHHZ8.9521e-79.3349e-84.9727e-83.2720e-82.7685e-81.9820e-62.6866e-73.8587e-82.5637e-964.230
FIESACHHHN8.9090e-71.2951e-77.5860e-83.0984e-83.7833e-82.3892e-63.8880e-76.3488e-83.6375e-964.230
FIESACHHHE1.4914e-61.6701e-77.4886e-83.3157e-82.1323e-82.5661e-62.6419e-72.9155e-84.3549e-964.230
LSD GUHHZ9.1508e-71.1772e-76.1649e-82.1385e-89.8899e-91.7621e-62.5389e-71.2366e-82.2840e-969.3219
LSD GUHHN1.0942e-61.0688e-74.8229e-81.5048e-87.0517e-91.2179e-62.8138e-71.1395e-82.1154e-969.3219
LSD GUHHE1.4064e-61.6563e-75.5087e-81.7775e-88.3373e-91.8761e-61.9516e-71.4863e-83.1844e-969.3219
*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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