MANUAL Location - Area: Alpi Marittime , magnitude (ML): 0.4
2021-02-26 21:59:49 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2021-03-01 08:03:54

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Earthquake info - Manual location
Event - ID :210226215926
Magnitude (ML) :0.4 +/- 0.2
Origin Time :2021-02-26 21:59:49.82 (UTC)
Location : Latitude: 44.255 N, Longitude: 7.563 E
Area :Alpi Marittime
Depth (km) :3.85
Distances (km) : 2.5 --- Vernante
6.0 --- Limone Piemonte
6.1 --- Robilante
8.6 --- Boves
8.8 --- Roaschia
9.4 --- Roccavione
9.6 --- Peveragno
10.6 --- Borgo San Dalmazzo
11.9 --- Chiusa di Pesio
13.2 --- Entracque
13.5 --- Valdieri
13.8 --- Roccasparvera
13.9 --- Vignolo
13.9 --- Beinette
14.3 --- Cuneo
15.5 --- Gaiola
15.7 --- Moiola
16.1 --- Roccaforte Mondovi
16.2 --- Cervasca
16.9 --- Rittana

Quality location estimate: Erh: 0.8 km, Erz: 1.1 km, Nf: 26, Gap: 120 °, Rms: 0.24


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.
ENRGU2021-02-26 21:59:52.7700.00700.280.832021-02-26 21:59:54.3400.0380-0.021.6712.9
STVGU2021-02-26 21:59:53.3150.0200-0.290.712021-02-26 21:59:56.2200.05910.031.6119.5
SAOFFR2021-02-26 21:59:56.2490.02000.450.672021-02-26 21:59:59.9990.0862-0.091.4230.2
TURFFR2021-02-26 21:59:57.0690.02000.380.872021-02-26 22:00:01.2100.0982-0.430.5734.2
ISOFR2021-02-26 21:59:58.4200.06730.760.152021-02-26 22:00:03.1540.10020.171.2741.9
ROROGU2021-02-26 21:59:58.2800.02810.320.942021-02-26 22:00:03.4090.1303-0.091.3343.3
PZZGU2021-02-26 21:59:58.9500.02510.460.672021-02-26 22:00:04.5100.1404-0.061.3345.6
IMIGU2021-02-26 21:59:58.6220.02000.061.532021-02-26 22:00:04.5900.1364-0.211.1046.7
BURYGU2021-02-26 21:59:59.6900.02000.091.442021-02-26 22:00:06.2840.1002-0.071.3452.6
CANOGU2021-02-26 22:00:00.1200.0301-0.081.452021-02-26 22:00:06.7970.2577-0.390.7754.1
QLNOGU2021-02-26 22:00:01.6660.02000.041.522021-02-26 22:00:08.9890.1002-0.640.3262.9
SURFFR2021-02-26 22:00:01.7300.0331-0.031.522021-02-26 22:00:09.5800.0400-0.590.3764.8
PCPGU2021-02-26 22:00:05.7600.04620.970.122021-02-26 22:00:15.8600.35170.730.4984.4


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
ENR GUHH0.754.50e-112.9256
STV GUHH0.394.62e-219.5267
ISO FRHH0.301.29e-241.9259
PZZ GUHH0.291.82e-245.6308
IMI GUHH0.391.75e-246.7145
BURY GUHH0.196.35e-352.6181
CANO GUHH0.571.45e-254.195
QLNO GUHH0.447.78e-362.983
PCP GUHH0.505.20e-384.467


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.
(°)
ENR GUHHZ6.1109e-55.0945e-61.2444e-63.4994e-72.1735e-78.1956e-53.9839e-64.5234e-71.0367e-712.9256
ENR GUHHN1.9799e-41.7617e-52.1182e-67.3935e-74.3833e-71.0022e-48.2335e-61.0494e-63.1085e-712.9256
ENR GUHHE2.1798e-41.8770e-52.1004e-66.4033e-73.9384e-71.2650e-48.4910e-61.1288e-63.3379e-712.9256
STV GUHHZ6.8254e-61.0822e-63.7908e-71.0756e-75.9756e-88.4783e-61.5635e-69.5584e-81.8645e-819.5267
STV GUHHN9.1301e-67.9430e-72.6273e-78.3212e-84.1491e-81.3324e-51.0081e-67.5242e-81.2761e-819.5267
STV GUHHE1.3349e-51.2477e-63.1637e-79.1762e-85.2684e-81.3967e-51.6045e-69.8839e-82.4772e-819.5267
SAOF FRHHZ6.0302e-78.8904e-85.4379e-84.1173e-81.4928e-81.4272e-62.2035e-71.6289e-82.4920e-930.2182
SAOF FRHHN7.0985e-77.6978e-85.0976e-83.2784e-81.4774e-81.0627e-62.3286e-72.0612e-82.2895e-930.2182
SAOF FRHHE8.2580e-71.1619e-74.6633e-83.4093e-81.8909e-81.3692e-62.2458e-72.2841e-82.7017e-930.2182
ISO FRHHZ1.5026e-61.9725e-71.0902e-73.1678e-81.7109e-83.2096e-64.0233e-72.4467e-84.4539e-941.9259
ISO FRHHN1.5336e-62.5964e-71.1175e-72.6626e-81.3566e-84.5414e-64.2843e-72.4997e-85.6847e-941.9259
ISO FRHHE1.5176e-61.8222e-78.9542e-82.5606e-81.4707e-84.6425e-64.2440e-72.6206e-84.1555e-941.9259
RORO GUHHZ2.0777e-62.7664e-78.0984e-81.9865e-81.2487e-83.4281e-62.7442e-72.6535e-85.7351e-943.3111
RORO GUHHN1.2070e-61.3833e-76.7230e-81.5782e-89.0452e-92.2684e-62.7811e-71.4687e-82.9741e-943.3111
RORO GUHHE2.7884e-66.1386e-73.1978e-75.0028e-74.7578e-74.5577e-61.7628e-67.2099e-76.1633e-843.3111
PZZ GUHHZ1.9037e-62.8587e-71.5239e-73.9411e-82.0567e-85.9888e-65.4768e-73.1772e-85.4027e-945.6308
PZZ GUHHN3.8094e-64.6638e-71.6682e-73.6765e-82.1591e-87.9666e-65.6646e-74.2553e-88.5708e-945.6308
PZZ GUHHE1.9787e-62.7693e-71.5840e-74.7170e-82.1727e-83.1892e-68.7848e-73.4177e-86.2281e-945.6308
IMI GUHHZ2.7156e-62.1681e-78.2784e-82.4768e-81.2733e-82.6138e-63.6617e-72.0189e-84.0306e-946.7145
IMI GUHHN3.8575e-64.1385e-71.2148e-73.7598e-82.2916e-86.6846e-65.6338e-74.4432e-89.3454e-946.7145
IMI GUHHE2.7270e-62.5512e-77.4451e-82.1187e-81.0593e-82.9910e-62.2041e-72.2722e-85.0406e-946.7145
BURY GUHHZ8.6879e-79.6115e-84.3480e-83.2880e-81.3322e-81.2935e-61.7314e-71.6993e-82.2654e-952.6181
BURY GUHHN1.9375e-61.8706e-74.9939e-83.5356e-81.5116e-81.8362e-61.9288e-71.9864e-84.3031e-952.6181
BURY GUHHE1.5183e-61.4750e-74.9362e-82.7694e-81.3356e-82.4124e-62.4293e-71.9335e-83.1324e-952.6181
CANO GUHHZ2.1977e-62.6032e-79.6887e-82.9219e-81.6344e-83.8819e-63.2922e-72.7477e-85.0711e-954.195
CANO GUHHN2.1399e-62.8043e-71.1294e-74.2777e-81.7908e-84.6148e-65.0495e-72.6443e-86.0454e-954.195
CANO GUHHE2.4802e-63.2601e-71.2836e-74.3561e-82.4914e-86.8594e-64.6953e-73.9549e-86.7225e-954.195
QLNO GUHHZ6.8099e-78.0954e-84.5566e-81.4279e-87.3253e-91.4834e-62.2075e-71.2224e-81.9095e-962.983
QLNO GUHHN1.5057e-61.7494e-76.9557e-82.2445e-81.3075e-82.7317e-62.6595e-71.9889e-83.7378e-962.983
QLNO GUHHE1.2625e-61.6661e-76.7526e-81.9585e-81.0560e-83.1849e-62.4215e-71.7966e-83.2777e-962.983
PCP GUHHZ6.2210e-77.2141e-84.9881e-81.6689e-88.2265e-91.4254e-62.6099e-71.3039e-81.5774e-984.467
PCP GUHHN5.7320e-77.5513e-84.5499e-81.4254e-86.9985e-91.7064e-61.6959e-71.0508e-81.8609e-984.467
PCP GUHHE7.7039e-78.1967e-84.9340e-81.4214e-87.5818e-91.8504e-62.1410e-71.1377e-82.0272e-984.467
*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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