MANUAL Location - Area: Alpi Cozie , magnitude (ML): 0.6
2021-04-15 07:21:37 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2021-04-15 07:37:23

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Earthquake info - Manual location
Event - ID :210415072101
Magnitude (ML) :0.6 +/- 0.2
Origin Time :2021-04-15 07:21:37.697 (UTC)
Location : Latitude: 44.825 N, Longitude: 6.905 E
Area :Alpi Cozie
Depth (km) :0.99
Distances (km) : 13.3 --- Sauze di Cesana
13.4 --- Prali
15.0 --- Sestriere
16.7 --- Cesana Torinese
16.9 --- Bobbio Pellice
17.4 --- Salza di Pinerolo
17.6 --- Claviere
19.1 --- Massello
19.9 --- Villar Pellice
20.9 --- Perrero
21.2 --- Pragelato
22.9 --- Sauze d Oulx
23.5 --- Rora
23.9 --- Oulx
24.3 --- Crissolo
24.4 --- Pontechianale
24.9 --- Torre Pellice
25.4 --- Angrogna
25.8 --- Pramollo
26.2 --- Fenestrelle

Quality location estimate: Erh: 1.3 km, Erz: 0.7 km, Nf: 20, Gap: 70 °, Rms: 0.33


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.
RRLGU2021-04-15 07:21:41.2100.01200.350.722021-04-15 07:21:42.6100.0441-0.391.4514.4
BHBGU2021-04-15 07:21:44.0300.01500.330.722021-04-15 07:21:46.8770.1002-0.680.5928.3
OGAGFR2021-04-15 07:21:43.6430.0200-0.011.432021-04-15 07:21:47.1500.0862-0.491.1929.3
BNIMN2021-04-15 07:21:43.8070.0200-0.411.452021-04-15 07:21:47.3870.0400-1.060.1431.1
SURFFR2021-04-15 07:21:45.5400.01900.051.262021-04-15 07:21:50.5700.1223-0.351.2739.0
PZZGU2021-04-15 07:21:45.3600.0190-0.011.392021-04-15 07:21:50.1800.1584-0.451.1739.2
RSPGU2021-04-15 07:21:46.8350.02000.031.302021-04-15 07:21:52.5230.0400-0.331.2945.8
STVGU2021-04-15 07:21:51.2270.02000.380.602021-04-15 07:21:59.7450.1002-0.251.2772.6
ENRGU2021-04-15 07:21:51.5500.0391-0.051.252021-04-15 07:22:00.8820.1002-0.391.1877.7
CIROGU2021-04-15 07:21:57.0890.02000.820.052021-04-15 07:22:07.8090.0400-1.110.27100.8


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
RRL GUHH0.631.40e-114.4320
BHB GUHH0.362.93e-228.388
PZZ GUHH0.931.07e-139.2155
RSP GUHH0.341.27e-245.838
STV GUHH0.717.17e-372.6152
ENR GUHH0.731.32e-277.7148
CIRO GUHH0.803.29e-3100.831


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 GUHHZ4.6220e-54.0426e-65.1735e-72.3524e-71.3086e-73.6695e-52.2072e-62.8195e-77.3433e-814.4320
RRL GUHHN3.2472e-53.8497e-69.3140e-72.7449e-71.6053e-74.8251e-54.4359e-63.3251e-78.4683e-814.4320
RRL GUHHE3.2651e-53.6755e-69.7939e-73.2508e-71.9113e-74.5462e-54.8401e-63.8466e-78.0779e-814.4320
BHB GUHHZ4.7406e-64.3673e-71.5618e-75.6760e-82.2851e-87.3368e-66.3714e-74.6539e-87.7680e-928.388
BHB GUHHN3.4597e-64.1522e-72.1142e-78.3242e-83.4532e-86.3527e-61.0136e-65.6533e-81.1117e-828.388
BHB GUHHE4.1959e-64.0375e-71.1653e-75.0105e-81.9243e-85.7670e-64.0874e-73.6495e-88.0945e-928.388
PZZ GUHHZ6.2053e-68.6034e-76.4040e-71.8232e-77.8776e-81.4295e-53.5299e-61.1750e-72.1978e-839.2155
PZZ GUHHN7.3559e-61.0692e-67.7284e-72.3489e-71.2028e-71.3390e-54.4634e-61.7218e-72.7449e-839.2155
PZZ GUHHE5.9959e-61.2055e-61.0970e-62.8065e-71.5200e-71.3887e-58.4716e-62.2543e-73.3752e-839.2155
RSP GUHHZ2.2264e-62.3282e-76.3511e-82.3806e-81.2232e-83.3727e-62.1253e-71.8233e-84.2930e-945.838
RSP GUHHN2.4828e-62.8990e-79.2516e-83.5237e-81.6951e-85.5768e-63.7432e-73.2631e-86.1548e-945.838
RSP GUHHE3.2451e-63.1612e-71.0582e-73.2907e-81.9090e-84.9432e-63.3112e-72.8367e-86.3431e-945.838
STV GUHHZ6.2726e-78.4822e-85.5683e-81.5907e-88.6132e-91.3619e-62.9640e-71.4974e-82.0877e-972.6152
STV GUHHN8.2464e-78.5780e-83.8170e-81.4549e-89.4024e-91.4974e-61.5523e-71.1414e-81.9150e-972.6152
STV GUHHE6.8690e-71.0718e-76.9799e-82.9561e-81.1224e-81.8758e-63.0250e-71.5421e-82.0805e-972.6152
ENR GUHHZ1.0684e-61.4009e-75.1964e-81.8859e-81.0659e-82.0772e-61.6691e-71.5216e-83.1339e-977.7148
ENR GUHHN2.8253e-62.6867e-78.8023e-83.0982e-81.4621e-84.3656e-64.0389e-72.8467e-85.3605e-977.7148
ENR GUHHE3.7162e-63.5172e-71.1097e-73.4443e-81.6741e-85.7719e-63.8012e-73.2487e-87.4629e-977.7148
CIRO GUHHZ2.6489e-74.5841e-82.6464e-81.0995e-86.0862e-95.6141e-71.7234e-78.7574e-91.1087e-9100.831
CIRO GUHHN3.5210e-75.6819e-82.6885e-81.1986e-86.1364e-98.4090e-71.3319e-78.0484e-91.0986e-9100.831
CIRO GUHHE5.1408e-76.5122e-83.2612e-81.3482e-87.2456e-91.0388e-61.7721e-71.0595e-81.3442e-9100.831
*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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