MANUAL Location - Area: Alpi Cozie , magnitude (ML): 0.3
2021-04-15 00:41:46 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2021-04-15 06:41:19

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Earthquake info - Manual location
Event - ID :210415004121
Magnitude (ML) :0.3 +/- 0.2
Origin Time :2021-04-15 00:41:46.339 (UTC)
Location : Latitude: 44.796 N, Longitude: 6.725 E
Area :Alpi Cozie
Depth (km) :3.36
Distances (km) : 16.1 --- Claviere
18.3 --- Cesana Torinese
19.4 --- Sauze di Cesana
21.8 --- Sestriere
27.6 --- Prali
27.8 --- Oulx
27.9 --- Sauze d Oulx
29.6 --- Pragelato
30.4 --- Salza di Pinerolo
30.7 --- Pontechianale
31.1 --- Bobbio Pellice
31.5 --- Bardonecchia
31.8 --- Massello
33.2 --- Bellino
33.3 --- Salbertrand
34.1 --- Villar Pellice
34.7 --- Perrero
35.6 --- Casteldelfino
35.8 --- Crissolo
37.0 --- Usseaux

Quality location estimate: Erh: 0.8 km, Erz: 0.6 km, Nf: 20, Gap: 96 °, Rms: 0.21


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.
OGAGFR2021-04-15 00:41:49.9100.01300.291.092021-04-15 00:41:51.8700.0551-0.021.5615.1
RRLGU2021-04-15 00:41:50.2800.00900.301.062021-04-15 00:41:52.4800.05610.011.5715.8
BNIMN2021-04-15 00:41:52.3750.02000.011.632021-04-15 00:41:56.3400.1955-0.121.0629.0
SURFFR2021-04-15 00:41:53.5900.07630.131.312021-04-15 00:41:58.4150.1193-0.160.9835.9
BHBGU2021-04-15 00:41:54.8800.02210.031.542021-04-15 00:41:59.8700.2987-0.760.3142.9
PZZGU2021-04-15 00:41:54.8900.0231-0.041.492021-04-15 00:42:00.5100.1414-0.520.4244.9
OGMOFR2021-04-15 00:41:55.3230.0200-0.081.312021-04-15 00:42:01.0560.1404-0.570.3846.0
RSPGU2021-04-15 00:41:57.5740.02000.271.082021-04-15 00:42:05.1790.04000.320.9158.0
ISOFR2021-04-15 00:42:00.0440.02000.281.032021-04-15 00:42:08.3640.0400-0.740.2872.9
TURFFR2021-04-15 00:42:05.9920.10040.610.282021-04-15 00:42:18.5330.0400-0.370.69105.6


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
RRL GUHH0.093.40e-215.820
BHB GUHH0.341.25e-242.984
PZZ GUHH0.593.72e-244.9136
RSP GUHH0.358.00e-358.047
ISO FRHH0.223.40e-372.9159
TURF FRHH0.492.71e-3105.6150


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 GUHHZ3.7010e-63.6780e-71.3499e-75.6163e-82.7709e-85.2317e-66.7379e-73.8446e-86.6114e-915.820
RRL GUHHN3.8557e-65.4320e-72.4841e-71.1300e-74.4486e-89.0368e-66.9991e-76.5577e-81.1118e-815.820
RRL GUHHE5.2755e-65.7207e-72.9573e-71.1184e-75.4665e-81.1549e-51.1853e-67.8487e-81.3366e-815.820
BHB GUHHZ2.4743e-63.1908e-71.1482e-73.5133e-81.8015e-88.0199e-64.4245e-72.9164e-87.0588e-942.984
BHB GUHHN2.0412e-62.2605e-71.0015e-72.9195e-81.8565e-86.1497e-63.1829e-73.4242e-85.3491e-942.984
BHB GUHHE2.5077e-62.6298e-71.0293e-73.7136e-81.6367e-86.7388e-63.8682e-72.9162e-85.2508e-942.984
PZZ GUHHZ3.3318e-64.7369e-72.4058e-74.7770e-82.8896e-88.6173e-61.1084e-64.5698e-81.0340e-844.9136
PZZ GUHHN2.6631e-65.9557e-73.3498e-78.1782e-85.0420e-86.9566e-61.6743e-69.1930e-81.4918e-844.9136
PZZ GUHHE3.2121e-66.0963e-73.4643e-78.1940e-84.7936e-89.0759e-61.3757e-67.9963e-81.5106e-844.9136
RSP GUHHZ6.9725e-78.0327e-84.5600e-82.5394e-89.6148e-91.4161e-62.5317e-71.2389e-82.0188e-958.047
RSP GUHHN9.5258e-71.7341e-77.0424e-82.9727e-81.0577e-82.8814e-63.0160e-71.6314e-83.8500e-958.047
RSP GUHHE1.1627e-61.3990e-76.9611e-82.5160e-81.1416e-82.9009e-61.9559e-71.9386e-82.8407e-958.047
ISO FRHHZ6.1853e-76.4730e-83.8411e-81.0955e-86.4237e-91.1231e-61.1362e-71.1964e-81.6886e-972.9159
ISO FRHHN5.3338e-77.2567e-83.4177e-88.2584e-94.3786e-91.2074e-61.2622e-76.9602e-91.4092e-972.9159
ISO FRHHE6.3407e-77.3192e-83.2437e-81.1755e-86.6637e-91.3021e-61.5694e-78.9795e-91.5992e-972.9159
TURF FRHHZ1.4434e-72.0887e-81.6158e-81.0005e-89.5654e-94.3583e-76.5183e-81.3160e-87.2933e-10105.6150
TURF FRHHN1.5422e-73.2695e-82.2219e-81.0488e-89.6029e-96.3166e-77.5158e-81.3273e-81.0531e-9105.6150
TURF FRHHE1.2666e-72.7691e-82.2202e-81.2780e-81.1878e-83.2280e-71.1553e-71.5715e-81.0295e-9105.6150
*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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