MANUAL Location - Area: Alpi Cozie , magnitude (ML): 0.6
2021-04-15 11:31:14 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2021-04-16 06:48:07

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Earthquake info - Manual location
Event - ID :210415113038
Magnitude (ML) :0.6 +/- 0.3
Origin Time :2021-04-15 11:31:14.088 (UTC)
Location : Latitude: 44.518 N, Longitude: 7.222 E
Area :Alpi Cozie
Depth (km) :6.01
Distances (km) : 4.0 --- Macra
4.1 --- San Damiano Macra
5.2 --- Celle di Macra
6.8 --- Cartignano
7.2 --- Sampeyre
7.3 --- Frassino
7.7 --- Stroppo
9.2 --- Melle
10.2 --- Valmala
10.5 --- Roccabruna
10.8 --- Elva
11.9 --- Pradleves
12.1 --- Castelmagno
12.1 --- Marmora
12.4 --- Brossasco
12.5 --- Dronero
13.0 --- Canosio
13.2 --- Villar San Costanzo
13.8 --- Prazzo
14.5 --- Monterosso Grana

Quality location estimate: Erh: 0.8 km, Erz: 0.8 km, Nf: 26, Gap: 83 °, Rms: 0.27


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.
PZZGU2021-04-15 11:31:16.5700.00900.071.472021-04-15 11:31:17.6920.0340-0.520.9711.3
STVGU2021-04-15 11:31:20.0330.0200-0.001.732021-04-15 11:31:23.3630.1434-0.800.4432.2
SURFFR2021-04-15 11:31:20.5100.0200-0.051.582021-04-15 11:31:24.8300.1003-0.470.9533.7
BHBGU2021-04-15 11:31:20.6180.02000.011.722021-04-15 11:31:24.5900.1103-0.470.9536.0
ENRGU2021-04-15 11:31:20.6600.0221-0.051.572021-04-15 11:31:24.8790.1093-0.430.9736.4
ISOFR2021-04-15 11:31:22.0600.03010.550.082021-04-15 11:31:26.8090.12030.240.7640.2
RRLGU2021-04-15 11:31:24.4580.02000.061.452021-04-15 11:31:30.6450.1002-1.030.2056.9
GBOSGU2021-04-15 11:31:23.8950.0200-0.461.002021-04-15 11:31:31.0830.1002-0.291.0758.3
OGAGFR2021-04-15 11:31:25.3480.0200-0.031.502021-04-15 11:31:33.1660.0400-0.291.0762.1
TURFFR2021-04-15 11:31:25.5930.02000.161.002021-04-15 11:31:32.7240.1905-0.720.6162.2
ROROGU2021-04-15 11:31:28.3180.02000.151.062021-04-15 11:31:37.3700.2436-0.470.8981.1
IMIGU2021-04-15 11:31:28.8990.0200-0.171.172021-04-15 11:31:39.2050.1002-0.460.9386.4
MONFR--:---.-----.---.--2021-04-15 11:31:39.4400.7069-1.810.1289.3
PCPGU--:---.-----.---.--2021-04-15 11:31:44.7600.31670.200.76105.1


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
PZZ GUHH0.675.90e-111.3261
STV GUHH0.311.49e-232.2165
BHB GUHH0.271.50e-236.05
ENR GUHH0.655.27e-236.4154
ISO FRHH0.542.46e-240.2200
RRL GUHH0.365.43e-356.9323
GBOS GUHH0.781.02e-258.3122
OGAG FRHH0.468.48e-362.1299
TURF FRHH0.285.56e-362.2167
RORO GUHH0.981.65e-281.1124
IMI GUHH0.851.34e-286.4141
PCP GUHH1.009.65e-3105.188


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.
(°)
PZZ GUHHZ6.5153e-51.0269e-55.2906e-61.5288e-67.9315e-71.3184e-42.6263e-51.2890e-62.4297e-711.3261
PZZ GUHHN7.1319e-51.1158e-53.6900e-69.9585e-75.1831e-71.8940e-41.2175e-59.4169e-72.3192e-711.3261
PZZ GUHHE5.4446e-58.8118e-65.3643e-61.8115e-68.9113e-71.2825e-42.8285e-51.3533e-62.0193e-711.3261
STV GUHHZ2.3167e-62.6246e-71.0445e-72.8130e-81.6337e-85.0242e-63.6134e-72.7955e-85.2920e-932.2165
STV GUHHN2.5314e-62.9334e-71.0399e-72.9195e-81.5603e-84.8384e-63.4792e-72.7149e-85.2960e-932.2165
STV GUHHE2.6293e-63.7217e-71.2143e-73.1101e-81.7144e-84.8812e-64.9766e-72.9604e-87.7275e-932.2165
SURF FRHHZ5.2476e-96.8660e-105.6294e-102.2503e-101.2904e-101.5610e-82.7063e-91.7389e-101.9901e-1133.7263
SURF FRHHN5.1004e-91.0423e-98.7456e-104.7280e-101.8476e-101.6344e-84.4170e-92.3469e-102.7003e-1133.7263
SURF FRHHE4.2908e-99.9192e-108.9273e-103.8584e-101.8346e-101.6634e-85.8168e-92.2876e-103.1702e-1133.7263
BHB GUHHZ3.3482e-64.3826e-71.3471e-75.9864e-84.4344e-89.4092e-64.4485e-78.7488e-89.0647e-936.05
BHB GUHHN2.9119e-63.3871e-71.1561e-73.3763e-82.0142e-85.8576e-63.8331e-73.5573e-87.0593e-936.05
BHB GUHHE2.5265e-63.7212e-71.2154e-73.6872e-81.8941e-86.3454e-64.8691e-74.0052e-87.2495e-936.05
ENR GUHHZ7.2351e-66.6726e-79.8383e-83.0177e-81.5172e-85.1894e-63.6549e-74.2243e-81.0173e-836.4154
ENR GUHHN1.7975e-51.7646e-62.0385e-76.4582e-84.0504e-81.4193e-58.1821e-71.0080e-72.8384e-836.4154
ENR GUHHE2.4781e-52.1090e-62.6859e-77.6872e-84.8708e-81.2501e-59.6921e-71.2889e-73.7264e-836.4154
ISO FRHHZ3.1067e-63.7420e-71.6380e-74.0043e-82.5677e-88.6212e-64.9227e-74.4155e-89.3473e-940.2200
ISO FRHHN3.6688e-63.4206e-71.0323e-72.5320e-81.5112e-83.0943e-64.3503e-72.4285e-86.5237e-940.2200
ISO FRHHE4.6682e-66.6340e-71.6053e-75.6573e-83.2542e-89.6500e-65.2365e-76.7997e-81.4637e-840.2200
RRL GUHHZ5.7831e-75.5506e-83.8226e-81.9923e-89.5214e-99.0297e-72.5966e-71.3060e-81.5424e-956.9323
RRL GUHHN6.4298e-71.1555e-74.6321e-81.7987e-89.4178e-93.2953e-62.0837e-71.4167e-82.1126e-956.9323
RRL GUHHE4.8077e-77.2471e-84.6799e-81.6963e-87.0033e-91.8006e-62.8793e-71.0193e-81.8309e-956.9323
GBOS GUHHZ1.3324e-62.4614e-71.1272e-72.3624e-81.5288e-85.9363e-64.9278e-72.6915e-85.5790e-958.3122
GBOS GUHHN1.4409e-62.3012e-79.1446e-82.5411e-81.4044e-85.0960e-63.1645e-72.8453e-84.9678e-958.3122
GBOS GUHHE1.1208e-61.9566e-78.6690e-82.0904e-81.2185e-86.1776e-63.1472e-71.9529e-83.9530e-958.3122
OGAG FRHHZ3.0546e-77.3537e-85.9831e-82.8043e-81.3868e-89.4034e-73.8215e-71.9917e-82.3149e-962.1299
OGAG FRHHN3.2696e-77.6420e-86.4196e-83.0080e-81.2201e-87.3296e-73.2200e-71.6584e-82.0695e-962.1299
OGAG FRHHE4.1514e-77.0112e-87.4724e-83.1666e-81.9761e-85.7226e-74.4049e-73.0929e-82.3572e-962.1299
TURF FRHHZ5.1970e-77.3099e-84.0182e-82.4626e-81.5656e-81.4137e-61.9093e-71.9943e-81.7632e-962.2167
TURF FRHHN6.0144e-78.8630e-85.8104e-81.7157e-81.2871e-82.2219e-62.6164e-72.2307e-82.3747e-962.2167
TURF FRHHE4.9776e-77.6729e-84.6762e-81.9605e-81.5083e-82.0434e-61.7163e-72.5195e-82.1659e-962.2167
RORO GUHHZ1.2204e-61.3890e-77.3295e-82.4491e-81.6554e-82.0617e-62.9166e-72.6795e-83.4895e-981.1124
RORO GUHHN1.0225e-61.5357e-79.8295e-82.2090e-81.1731e-82.7159e-63.4142e-72.0627e-83.6643e-981.1124
RORO GUHHE1.0875e-61.8769e-71.2598e-77.3035e-87.6855e-83.1378e-63.4045e-71.2468e-77.1268e-981.1124
IMI GUHHZ7.7664e-71.2431e-74.9238e-86.4386e-87.7282e-81.8935e-61.7442e-71.2312e-78.8271e-986.4141
IMI GUHHN1.2489e-62.1665e-71.0648e-75.2474e-83.0074e-84.0091e-64.3396e-73.9849e-85.1219e-986.4141
IMI GUHHE1.2236e-61.8176e-77.5268e-86.4467e-87.7576e-82.4108e-63.6790e-71.3819e-79.4733e-986.4141
MON FRHHZ2.7813e-67.7406e-74.2116e-75.8341e-76.2254e-76.2697e-62.5265e-68.2917e-71.0955e-789.3169
MON FRHHN3.7645e-66.9445e-74.5337e-73.9324e-74.7075e-71.0159e-52.2641e-66.6050e-74.2440e-889.3169
MON FRHHE3.1229e-67.9466e-74.4013e-73.6854e-75.0329e-79.7025e-62.9981e-61.0087e-65.5138e-889.3169
PCP GUHHZ5.6176e-78.0932e-86.5968e-84.7805e-84.0242e-81.4212e-63.8099e-76.0125e-86.6894e-9105.188
PCP GUHHN6.1873e-79.6978e-88.1032e-84.1706e-84.5615e-81.8281e-63.9924e-76.8354e-86.4879e-9105.188
PCP GUHHE5.2247e-71.1071e-75.9028e-83.3634e-83.5845e-81.5389e-63.0740e-75.4993e-86.9657e-9105.188
*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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