MANUAL Location - Area: Francia , magnitude (ML): 0.4
2022-01-20 14:26:00 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2022-01-21 07:50:56

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Earthquake info - Manual location
Event - ID :220120142522
Magnitude (ML) :0.4 +/- 0.2
Origin Time :2022-01-20 14:26:00.527 (UTC)
Location : Latitude: 44.137 N, Longitude: 6.953 E
Area :Francia
Depth (km) :3.48
Distances (km) : 24.0 --- Pietraporzio
24.5 --- Sambuco
26.0 --- Vinadio
28.9 --- Aisone
29.0 --- Argentera
33.9 --- Demonte
36.7 --- Castelmagno
37.1 --- Canosio
37.3 --- Entracque
37.6 --- Marmora
37.8 --- Acceglio
38.7 --- Valdieri
39.5 --- Prazzo
40.3 --- Moiola
40.3 --- Valloriate
40.8 --- Pradleves
42.2 --- Monterosso Grana
42.4 --- Gaiola
42.5 --- Celle di Macra
42.7 --- Roaschia

Quality location estimate: Erh: 0.6 km, Erz: 0.5 km, Nf: 12, Gap: 195 °, Rms: 0.17


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.
ISOFR2022-01-20 14:26:03.5680.06020.430.012022-01-20 14:26:04.9760.04000.011.8310.3
MVIFFR2022-01-20 14:26:07.0370.0200-0.011.812022-01-20 14:26:11.1390.2005-0.950.2631.3
STVGU2022-01-20 14:26:06.9350.02000.091.222022-01-20 14:26:10.9840.0400-0.161.1032.4
SURFFR2022-01-20 14:26:08.4840.02000.001.752022-01-20 14:26:14.0250.0400-0.051.4340.0
PZZGU2022-01-20 14:26:09.0460.0200-0.270.452022-01-20 14:26:14.6250.0400-0.770.2343.4
ESCAFR2022-01-20 14:26:09.9950.0200-0.031.652022-01-20 14:26:16.0860.0400-0.990.2548.0


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
ISO FRHH0.049.42e-210.356
STV GUHH0.401.81e-232.468
PZZ GUHH0.412.68e-243.417
ESCA FRHH0.662.25e-248.0135


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.
(°)
ISO FRHHZ6.3306e-67.8455e-74.3649e-71.9516e-76.7730e-85.2192e-62.5057e-69.8014e-81.5619e-810.356
ISO FRHHN5.0618e-67.9929e-74.5915e-71.4465e-77.0607e-81.3161e-52.2842e-61.0280e-71.7798e-810.356
ISO FRHHE6.1099e-61.2908e-66.2086e-72.6365e-71.4655e-78.9572e-63.0052e-62.2179e-73.1002e-810.356
STV GUHHZ1.1559e-61.8606e-71.3422e-75.0011e-82.0429e-82.6208e-66.0611e-72.5250e-84.6550e-932.468
STV GUHHN1.6015e-63.2899e-71.4676e-75.3904e-83.1303e-83.6842e-65.9868e-75.0024e-87.3862e-932.468
STV GUHHE8.8382e-71.2619e-77.6068e-82.5227e-81.1672e-81.8735e-63.4279e-72.0656e-83.0995e-932.468
PZZ GUHHZ1.1166e-62.2193e-71.8241e-75.9259e-82.6214e-82.6578e-61.0262e-63.9122e-85.9156e-943.417
PZZ GUHHN1.2160e-62.5369e-71.8025e-78.2786e-83.8634e-84.0774e-67.2745e-74.8104e-85.5566e-943.417
PZZ GUHHE1.4770e-62.7037e-72.5992e-76.8301e-83.2468e-84.1134e-61.5306e-64.3570e-87.4503e-943.417
ESCA FRHHZ5.2520e-71.2564e-78.3692e-83.1844e-81.8359e-81.1456e-64.7397e-72.7409e-83.4143e-948.0135
ESCA FRHHN9.5768e-71.5634e-71.1950e-74.4903e-82.3797e-82.1620e-65.2413e-73.2334e-83.9577e-948.0135
ESCA FRHHE9.0460e-72.6142e-71.6967e-75.8398e-83.4953e-82.2443e-68.1177e-76.3277e-86.7392e-948.0135
*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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