MANUAL Location - Area: Alpi Cozie , magnitude (ML): 1.7
2021-04-12 05:31:01 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2021-04-12 08:51:57

RSNI Logo


Earthquake info - Manual location
Event - ID :210412052927
Magnitude (ML) :1.7 +/- 0.2
Origin Time :2021-04-12 05:31:01.858 (UTC)
Location : Latitude: 44.846 N, Longitude: 6.668 E
Area :Alpi Cozie
Depth (km) :1.93
Distances (km) : 12.3 --- Claviere
15.5 --- Cesana Torinese
18.5 --- Sauze di Cesana
20.8 --- Sestriere
24.6 --- Oulx
25.3 --- Sauze d Oulx
26.0 --- Bardonecchia
28.4 --- Pragelato
30.4 --- Prali
30.5 --- Salbertrand
32.1 --- Salza di Pinerolo
33.1 --- Massello
34.8 --- Exilles
35.8 --- Bobbio Pellice
36.3 --- Usseaux
36.7 --- Perrero
37.0 --- Fenestrelle
37.8 --- Pontechianale
38.7 --- Villar Pellice
39.5 --- Chiomonte

Quality location estimate: Erh: 1.2 km, Erz: 1.3 km, Nf: 50, Gap: 122 °, Rms: 0.35


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.
OGAGFR2021-04-12 05:31:04.6500.0060-0.011.572021-04-12 05:31:06.1100.0360-0.490.9112.4
RRLGU2021-04-12 05:31:05.6200.00800.511.072021-04-12 05:31:07.7800.04610.441.1513.4
BNIMN2021-04-12 05:31:06.8100.01200.011.572021-04-12 05:31:09.7850.3547-0.331.0423.0
OGMOFR2021-04-12 05:31:08.3700.0200-1.720.042021-04-12 05:31:15.0900.1213-0.490.9140.3
SURFFR2021-04-12 05:31:10.1800.0221-0.071.402021-04-12 05:31:15.7860.1635-0.381.0142.3
BHBGU2021-04-12 05:31:11.2500.02510.031.472021-04-12 05:31:17.1500.4158-0.380.9747.0
PZZGU2021-04-12 05:31:11.6200.0271-0.191.072021-04-12 05:31:18.3830.2186-0.410.9951.9
RSPGU2021-04-12 05:31:13.0700.03010.051.422021-04-12 05:31:19.9800.2627-0.670.7357.8
ISOFR2021-04-12 05:31:16.7300.04020.141.312021-04-12 05:31:26.2300.2406-0.610.7979.7
STVGU2021-04-12 05:31:17.1200.04320.021.372021-04-12 05:31:27.6400.2577-0.221.1184.8
ENRGU2021-04-12 05:31:18.5000.04620.491.022021-04-12 05:31:29.5400.28870.131.1490.8
RSLFR2021-04-12 05:31:19.3600.02000.491.012021-04-12 05:31:30.9050.04000.311.1493.6
MONCIV2021-04-12 05:31:21.5300.05220.351.152021-04-12 05:31:35.9770.04000.530.86102.3
MRGEIV2021-04-12 05:31:20.9360.0200-0.540.862021-04-12 05:31:34.0720.0400-0.800.59107.2
CIROGU2021-04-12 05:31:21.4500.0562-0.680.712021-04-12 05:31:34.6190.4399-1.300.30109.7
TRAVGU2021-04-12 05:31:21.7500.05720.181.282021-04-12 05:31:34.9120.7539-0.310.77112.4
TURFFR2021-04-12 05:31:22.8080.02000.560.862021-04-12 05:31:36.6700.3407-0.011.07112.7
GBOSGU2021-04-12 05:31:22.1800.05820.451.032021-04-12 05:31:35.4130.4419-0.131.00114.7
SAOFFR2021-04-12 05:31:23.5180.02000.331.172021-04-12 05:31:37.7060.0400-0.500.89118.7
ESCAFR2021-04-12 05:31:25.0980.02000.351.142021-04-12 05:31:40.8700.04000.041.16126.6
ROROGU2021-04-12 05:31:25.7700.07030.401.082021-04-12 05:31:41.1250.0400-0.850.56137.7
IMIGU2021-04-12 05:31:25.9700.4619-0.480.862021-04-12 05:31:43.9130.0400-0.131.11142.5
SATIGU2021-04-12 05:31:27.9800.0753-0.291.092021-04-12 05:31:45.5200.0400-0.820.59148.0
PCPGU2021-04-12 05:31:28.1800.07730.441.002021-04-12 05:31:46.9410.04000.940.39152.2
MMKCH2021-04-12 05:31:30.9450.0200-0.011.242021-04-12 05:31:51.1080.04000.201.03167.9


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
RRL GUHH1.571.38e+013.449
BHB GUHH1.511.52e-147.091
PZZ GUHH1.703.58e-151.9137
RSP GUHH1.521.21e-157.854
ISO FRHH1.273.17e-279.7157
STV GUHH1.583.78e-284.8142
ENR GUHH1.739.32e-290.8139
MONC IVHH1.788.50e-2102.375
MRGE IVHH1.431.95e-2107.217
CIRO GUHH1.963.91e-2109.740
TRAV GUHH1.815.74e-2112.448
GBOS GUHH2.054.11e-2114.7125
SAOF FRHH1.723.43e-2118.7143
RORO GUHH1.792.93e-2137.7126
IMI GUHH1.975.11e-2142.5136
SATI GUHH1.781.29e-2148.039
PCP GUHH1.611.51e-2152.2102
MMK CHHH1.991.35e-2167.937


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.
(°)
RRL GUHHZ1.1706e-41.6383e-56.1700e-62.0687e-61.1365e-63.2323e-42.2977e-51.7064e-63.1168e-713.449
RRL GUHHN6.8449e-51.8606e-51.0429e-53.5057e-62.2071e-61.5296e-44.8939e-53.4178e-64.6980e-713.449
RRL GUHHE8.0888e-51.1232e-55.7509e-63.2950e-61.6709e-62.1769e-42.0684e-52.1960e-63.6937e-713.449
BHB GUHHZ3.2257e-54.2527e-61.6227e-63.8044e-72.1589e-79.1119e-55.1266e-64.0502e-79.3565e-847.091
BHB GUHHN2.2295e-52.7161e-61.1769e-63.6079e-71.5999e-75.6015e-54.8938e-62.7013e-75.0477e-847.091
BHB GUHHE2.4153e-52.8417e-61.4301e-63.2955e-71.6956e-77.1141e-55.1190e-63.0280e-76.6773e-847.091
PZZ GUHHZ1.8337e-53.3636e-62.5523e-66.3334e-72.9210e-75.4385e-51.1231e-54.5586e-78.5006e-851.9137
PZZ GUHHN1.7839e-52.7423e-62.2968e-67.0117e-73.6221e-76.3840e-51.1755e-54.8095e-76.6167e-851.9137
PZZ GUHHE2.2834e-54.1280e-63.1803e-67.7906e-74.3927e-78.4175e-51.2394e-56.5240e-71.0760e-751.9137
RSP GUHHZ1.3253e-51.5143e-66.9084e-72.0315e-79.3775e-82.1021e-53.0839e-61.4767e-73.2095e-857.854
RSP GUHHN1.1211e-51.7795e-61.0177e-62.6718e-71.2036e-73.6909e-54.4795e-61.8558e-73.7618e-857.854
RSP GUHHE1.7325e-52.3086e-61.0721e-62.5179e-71.4168e-75.5014e-53.1508e-62.5685e-75.3044e-857.854
ISO FRHHZ3.1960e-65.1012e-72.8235e-76.1641e-83.1057e-86.4189e-61.2320e-64.6152e-81.0790e-879.7157
ISO FRHHN2.5478e-63.7943e-72.5130e-76.6367e-83.2643e-85.5258e-61.2542e-65.9416e-81.0737e-879.7157
ISO FRHHE3.4988e-65.1613e-72.7747e-78.7602e-83.3786e-86.8446e-61.7904e-65.5863e-81.2776e-879.7157
STV GUHHZ2.2066e-64.2932e-72.9964e-79.0660e-83.9843e-85.6031e-61.3355e-65.8900e-81.0370e-884.8142
STV GUHHN3.0932e-65.7245e-73.0247e-71.3152e-75.1778e-87.4918e-61.2956e-67.6351e-81.4632e-884.8142
STV GUHHE3.0426e-66.7999e-73.6842e-71.2410e-75.2587e-86.9147e-61.2732e-67.7255e-81.2621e-884.8142
ENR GUHHZ4.5160e-65.8106e-72.7055e-79.0059e-84.9484e-81.0686e-51.2320e-67.2207e-81.2752e-890.8139
ENR GUHHN1.2425e-51.1240e-63.9193e-71.4439e-77.6224e-81.8126e-52.2663e-61.5705e-72.8721e-890.8139
ENR GUHHE1.4413e-51.5586e-66.9220e-72.0144e-71.0519e-72.3653e-52.8973e-61.9464e-73.8304e-890.8139
MONC IVHHZ2.7944e-65.6099e-75.3955e-72.9524e-71.5753e-71.1160e-52.7005e-62.3979e-72.8185e-8102.375
MONC IVHHN3.6470e-68.6382e-78.4972e-74.9087e-71.6624e-77.0328e-64.1904e-61.9052e-72.0863e-8102.375
MONC IVHHE2.8179e-67.7017e-77.0754e-73.0659e-71.1344e-78.8629e-63.7943e-61.8836e-71.8405e-8102.375
MRGE IVHHZ1.1158e-61.9133e-71.5672e-76.3126e-83.4071e-82.0380e-69.0509e-74.9991e-84.6129e-9107.217
MRGE IVHHN2.1346e-62.9389e-71.7222e-71.3496e-76.2734e-85.1018e-68.6612e-76.6070e-86.5121e-9107.217
MRGE IVHHE1.4098e-62.5495e-71.6202e-78.2072e-85.1769e-83.0498e-69.1497e-76.2517e-86.0398e-9107.217
CIRO GUHHZ1.8316e-64.4453e-73.4834e-71.3196e-75.2487e-85.9919e-62.5099e-67.9016e-81.0998e-8109.740
CIRO GUHHN2.0782e-64.0408e-73.5118e-71.6909e-76.1138e-86.9222e-62.1003e-68.6165e-81.2016e-8109.740
CIRO GUHHE2.1583e-64.6050e-73.6940e-71.1507e-75.3034e-86.1788e-62.5379e-66.8087e-81.1965e-8109.740
TRAV GUHHZ1.9374e-64.4601e-72.9390e-79.7653e-84.2153e-86.6382e-62.0675e-65.7310e-81.1061e-8112.448
TRAV GUHHN3.3334e-66.7104e-75.0959e-71.5762e-76.5278e-85.9854e-63.9530e-69.9723e-81.4686e-8112.448
TRAV GUHHE2.8927e-68.3230e-75.2905e-71.5944e-77.7345e-86.5904e-62.6897e-61.1417e-72.1695e-8112.448
GBOS GUHHZ1.4475e-64.5092e-74.2375e-71.3172e-76.2528e-84.3889e-63.2415e-68.7044e-81.2081e-8114.7125
GBOS GUHHN1.2388e-62.9855e-73.2582e-79.0907e-83.8612e-84.2051e-62.1446e-65.5406e-87.7359e-9114.7125
GBOS GUHHE1.5053e-63.8551e-73.6251e-71.2759e-76.0750e-85.0618e-62.9662e-69.5390e-81.3340e-8114.7125
SAOF FRHHZ4.7263e-71.4719e-71.3895e-77.4003e-83.4647e-81.2945e-67.5908e-75.4299e-84.3468e-9118.7143
SAOF FRHHN5.8458e-71.1664e-79.3617e-85.0479e-82.9321e-81.2407e-65.7196e-73.5311e-83.5064e-9118.7143
SAOF FRHHE5.6341e-72.6075e-71.7520e-71.0302e-71.3407e-72.2451e-61.1758e-62.7867e-71.2040e-8118.7143
RORO GUHHZ1.1867e-63.0113e-72.0852e-77.1975e-83.1365e-83.8275e-61.3735e-64.5460e-86.5033e-9137.7126
RORO GUHHN1.0077e-62.1849e-71.7446e-75.4072e-82.6755e-82.9487e-67.1818e-73.6666e-85.4283e-9137.7126
RORO GUHHE1.6128e-63.9139e-72.2450e-71.0090e-76.8576e-82.6860e-61.6019e-69.8507e-88.5321e-9137.7126
IMI GUHHZ9.1134e-71.5592e-71.0034e-74.3111e-81.9851e-83.1005e-65.2041e-72.5176e-84.0175e-9142.5136
IMI GUHHN1.1389e-62.2261e-71.2333e-76.4794e-83.1901e-83.3577e-65.6843e-74.1997e-84.4832e-9142.5136
IMI GUHHE8.9774e-71.3904e-71.0504e-74.2996e-82.3601e-82.7113e-66.6201e-72.7187e-82.8997e-9142.5136
SATI GUHHZ7.1342e-71.0082e-77.1277e-83.1856e-81.5490e-81.9634e-64.4148e-72.0576e-82.6617e-9148.039
SATI GUHHN8.6633e-71.4483e-78.3368e-83.0508e-81.6412e-81.4934e-64.2024e-72.5692e-84.0218e-9148.039
SATI GUHHE9.3023e-71.8518e-79.1397e-82.9848e-81.8686e-82.6852e-64.7784e-72.7556e-83.2882e-9148.039
PCP GUHHZ6.8578e-71.5079e-78.2285e-83.3102e-81.8616e-82.4774e-63.4865e-72.7045e-83.5338e-9152.2102
PCP GUHHN5.7959e-78.7004e-86.1130e-82.8311e-81.7244e-81.7973e-62.6127e-72.1283e-82.5184e-9152.2102
PCP GUHHE6.2573e-71.0854e-77.6722e-82.8703e-81.4819e-82.2289e-63.0094e-72.3093e-82.7426e-9152.2102
MMK CHHHZ6.3866e-71.4281e-78.1292e-82.3983e-81.1708e-81.8707e-63.5678e-71.6696e-82.7210e-9167.937
MMK CHHHN2.6229e-76.0984e-85.1020e-83.3188e-82.6321e-89.2934e-72.6088e-73.9221e-83.3362e-9167.937
MMK CHHHE2.4568e-74.8217e-84.8423e-81.9440e-88.9070e-97.4589e-73.1592e-71.0782e-81.4161e-9167.937
*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)

rsni