MANUAL Location - Area: Cuneese-Valle Stura , magnitude (ML): 0.7
2021-04-09 19:43:54 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2021-04-12 08:09:01

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Earthquake info - Manual location
Event - ID :210409194233
Magnitude (ML) :0.7 +/- 0.2
Origin Time :2021-04-09 19:43:54.988 (UTC)
Location : Latitude: 44.778 N, Longitude: 7.661 E
Area :Cuneese-Valle Stura
Depth (km) :19.32
Distances (km) : 1.9 --- Racconigi
4.2 --- Cavallerleone
5.4 --- Murello
5.4 --- Casalgrasso
5.8 --- Polonghera
6.2 --- Caramagna Piemonte
7.0 --- Faule
7.4 --- Lombriasco
8.1 --- Cavallermaggiore
8.4 --- Pancalieri
8.6 --- Villanova Solaro
9.1 --- Ruffia
9.1 --- Carmagnola
9.7 --- Moretta
9.8 --- Sommariva del Bosco
10.4 --- Monasterolo di Savigliano
11.1 --- Osasio
11.3 --- Torre San Giorgio
11.7 --- Sanfre
12.1 --- Virle Piemonte

Quality location estimate: Erh: 1.1 km, Erz: 2.6 km, Nf: 26, Gap: 78 °, Rms: 0.23


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.
BHBGU2021-04-09 19:44:02.0900.02110.800.002021-04-09 19:44:07.2200.13741.500.0037.7
MONCIV2021-04-09 19:44:03.5300.0401-0.490.642021-04-09 19:44:10.1440.0400-0.930.2243.7
RSPGU2021-04-09 19:44:04.1500.02000.061.542021-04-09 19:44:10.5680.0400-0.041.4755.6
PZZGU2021-04-09 19:44:04.2500.0522-0.011.632021-04-09 19:44:10.2470.1002-0.650.5256.5
GBOSGU2021-04-09 19:44:06.0300.02000.011.592021-04-09 19:44:13.8080.10020.011.2964.5
ENRGU2021-04-09 19:44:05.9900.03410.121.222021-04-09 19:44:13.6790.21060.011.1367.1
STVGU2021-04-09 19:44:05.8400.0633-0.161.362021-04-09 19:44:13.1500.3497-0.720.5667.9
RRLGU2021-04-09 19:44:07.4710.0200-0.001.562021-04-09 19:44:15.9410.0400-0.221.2173.7
SURFFR2021-04-09 19:44:07.5300.0371-0.380.872021-04-09 19:44:16.4520.0400-0.740.4377.2
PCPGU2021-04-09 19:44:08.2950.0200-0.021.552021-04-09 19:44:17.3890.0400-0.430.8677.3
ROROGU2021-04-09 19:44:09.0510.02000.061.412021-04-09 19:44:18.8130.0400-0.311.0683.0
ISOFR2021-04-09 19:44:08.5880.0602-0.071.502021-04-09 19:44:18.3340.10020.071.1184.3
TURFFR2021-04-09 19:44:10.2670.0200-0.221.232021-04-09 19:44:20.1810.1002-1.580.0393.8


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
BHB GUHH0.804.58e-237.7282
MONC IVHH0.613.57e-243.732
PZZ GUHH0.311.24e-256.5235
GBOS GUHH1.172.03e-264.5167
ENR GUHH0.902.72e-267.1198
STV GUHH0.474.75e-367.9204
RRL GUHH0.564.91e-373.7283
PCP GUHH0.791.23e-277.3110
RORO GUHH0.616.79e-383.0156


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.
(°)
BHB GUHHZ5.4493e-65.0349e-71.3108e-73.9556e-82.8801e-81.0098e-55.8251e-75.8338e-88.4239e-937.7282
BHB GUHHN5.2400e-69.1576e-74.4251e-71.1351e-75.7760e-82.1405e-51.3956e-68.9382e-81.8456e-837.7282
BHB GUHHE4.6550e-65.8891e-73.1658e-71.1366e-75.5501e-87.9521e-61.1138e-61.0615e-71.6268e-837.7282
MONC IVHHZ2.2274e-62.9482e-72.3097e-77.2421e-83.9180e-85.8685e-69.6161e-75.2832e-88.2770e-943.732
MONC IVHHN2.1181e-64.9809e-73.1406e-79.4669e-84.5988e-85.7590e-61.7274e-66.1512e-81.2240e-843.732
MONC IVHHE2.2432e-64.4593e-73.2351e-71.1532e-74.4432e-85.9993e-61.3431e-67.4443e-81.0897e-843.732
RSP GUHHZ1.0075e-61.0406e-74.0517e-81.6825e-88.9796e-91.8720e-61.1298e-71.3733e-82.1977e-955.6323
RSP GUHHN1.0435e-61.2273e-75.9772e-82.2198e-89.6781e-92.7405e-62.0445e-71.4364e-83.0631e-955.6323
RSP GUHHE1.0213e-61.2388e-75.9599e-81.8471e-88.4859e-92.9148e-62.2077e-71.3562e-82.7029e-955.6323
PZZ GUHHZ1.6292e-62.0840e-71.0699e-72.8054e-81.9481e-83.4489e-64.5155e-73.5438e-84.5328e-956.5235
PZZ GUHHN1.6825e-61.7614e-71.1772e-73.7813e-82.4173e-82.3475e-66.3400e-74.9152e-85.0962e-956.5235
PZZ GUHHE1.3536e-62.0153e-71.0741e-73.4508e-81.7823e-82.5591e-65.4534e-72.3760e-83.6683e-956.5235
GBOS GUHHZ8.8222e-71.6311e-79.1694e-83.0437e-81.4753e-82.2471e-65.5915e-72.4547e-84.4644e-964.5167
GBOS GUHHN5.8639e-71.1754e-78.1805e-83.9344e-81.4701e-81.5575e-65.5374e-71.9643e-83.2846e-964.5167
GBOS GUHHE1.3635e-62.7740e-71.6735e-75.9012e-82.6162e-83.4711e-67.2120e-74.1658e-87.1232e-964.5167
ENR GUHHZ6.1244e-65.1664e-76.1474e-82.0598e-81.1942e-83.5134e-62.8493e-72.0666e-84.9059e-967.1198
ENR GUHHN7.9780e-67.5223e-71.0903e-73.4962e-82.1142e-86.9684e-63.6626e-75.2650e-81.1952e-867.1198
ENR GUHHE1.4691e-51.1587e-61.5515e-75.3724e-82.7505e-86.7295e-65.5939e-76.9572e-81.9429e-867.1198
STV GUHHZ1.9134e-62.1783e-73.1722e-81.6396e-82.3176e-81.5443e-61.1801e-73.8046e-86.8676e-967.9204
STV GUHHN6.8232e-77.9814e-82.6820e-81.0293e-87.0491e-98.3088e-71.2182e-71.1667e-81.5800e-967.9204
STV GUHHE8.3089e-78.4829e-84.0363e-81.5960e-89.6913e-91.3275e-61.8464e-71.4673e-81.9460e-967.9204
RRL GUHHZ3.1561e-73.7349e-81.9480e-81.1480e-86.3734e-96.9358e-78.1430e-87.9490e-91.0889e-973.7283
RRL GUHHN2.3936e-76.6720e-83.7388e-81.7024e-89.9067e-99.0876e-72.4590e-71.6158e-81.7962e-973.7283
RRL GUHHE2.2270e-73.8135e-82.7500e-81.3616e-87.7509e-95.0493e-71.2206e-71.2711e-89.8946e-1073.7283
PCP GUHHZ3.2327e-75.1366e-83.5885e-82.1185e-81.6512e-87.3750e-71.8823e-72.2731e-81.4484e-977.3110
PCP GUHHN3.5828e-77.6081e-85.4217e-82.2924e-81.8218e-87.5756e-73.4691e-73.2328e-82.4529e-977.3110
PCP GUHHE3.4356e-77.6061e-85.1942e-84.2856e-87.4638e-88.8277e-72.8271e-71.0957e-71.1915e-877.3110
RORO GUHHZ3.5326e-75.9604e-83.7877e-82.0270e-81.2789e-89.3394e-72.5609e-72.1964e-82.0420e-983.0156
RORO GUHHN3.1813e-75.4182e-84.5359e-82.3005e-81.2338e-89.4715e-71.6208e-71.7932e-81.8700e-983.0156
RORO GUHHE4.9715e-78.9126e-86.9187e-83.6757e-82.4831e-81.3751e-62.8779e-74.2584e-82.4814e-983.0156
ISO FRHHZ6.7797e-76.3636e-81.7796e-87.4750e-95.6960e-95.2747e-71.0256e-78.5698e-91.1034e-984.3216
ISO FRHHN3.2729e-73.8720e-81.4671e-87.7664e-95.1509e-96.5780e-76.6816e-87.6338e-91.0942e-984.3216
ISO FRHHE3.3256e-72.9296e-81.5215e-87.1940e-95.9908e-95.6119e-75.1961e-89.8017e-99.4261e-1084.3216
*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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