MANUAL Location - Area: Mar Ligure , magnitude (ML): 0.9
2021-02-26 06:11:58 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2021-02-26 08:09:53

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Earthquake info - Manual location
Event - ID :210226061134
Magnitude (ML) :0.9 +/- 0.2
Origin Time :2021-02-26 06:11:58.271 (UTC)
Location : Latitude: 43.969 N, Longitude: 8.425 E
Area :Mar Ligure
Depth (km) :6.01
Distances (km) : 19.2 --- Albenga
20.7 --- Alassio
20.9 --- Ceriale
21.5 --- Laigueglia
21.5 --- Borghetto Santo Spirito
22.2 --- Loano
22.6 --- Andora
23.1 --- Pietra Ligure
23.2 --- Finale Ligure
23.4 --- Borgio Verezzi
24.1 --- Villanova d Albenga
24.5 --- Toirano
24.6 --- Boissano
25.3 --- Cervo
25.9 --- Cisano sul Neva
26.2 --- San Bartolomeo al Mare
26.3 --- Tovo San Giacomo
26.4 --- Noli
26.6 --- Balestrino
26.8 --- Villa Faraldi

Quality location estimate: Erh: 1.3 km, Erz: 1.7 km, Nf: 24, Gap: 245 °, Rms: 0.20


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.
CANOGU2021-02-26 06:12:04.1700.05320.031.612021-02-26 06:12:08.1720.0400-0.121.3231.1
ROROGU2021-02-26 06:12:04.3760.0200-0.011.652021-02-26 06:12:08.8230.04000.051.5133.4
IMIGU2021-02-26 06:12:05.8770.0200-0.310.562021-02-26 06:12:11.8470.0400-0.151.2243.6
GBOSGU2021-02-26 06:12:08.1720.02000.141.252021-02-26 06:12:14.9100.0400-0.001.3856.1
PCPGU2021-02-26 06:12:09.4090.0200-0.121.322021-02-26 06:12:17.7700.32870.080.9364.6
SAOFFR2021-02-26 06:12:11.3450.02000.800.282021-02-26 06:12:19.3950.0400-0.071.2370.1
BURYGU2021-02-26 06:12:11.8320.10040.950.232021-02-26 06:12:19.9320.1604-0.031.1372.9
TURFFR2021-02-26 06:12:13.2260.02000.360.572021-02-26 06:12:23.8140.04000.470.5682.9
ENRGU2021-02-26 06:12:13.1670.02000.061.392021-02-26 06:12:23.5910.04000.031.1685.7
STVGU2021-02-26 06:12:14.4120.02000.081.352021-02-26 06:12:25.5350.0400-0.081.0993.2
PZZGU2021-02-26 06:12:18.8890.02000.021.282021-02-26 06:12:32.8000.0400-0.740.20120.4
BHBGU2021-02-26 06:12:20.8650.02000.860.282021-02-26 06:12:36.2160.04000.650.48133.5


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
CANO GUHH0.726.10e-231.1331
IMI GUHH1.028.42e-243.6261
GBOS GUHH0.699.02e-356.1303
PCP GUHH0.571.09e-264.69
SAOF FRHH0.711.16e-270.1272
BURY GUHH0.861.48e-272.9254
ENR GUHH1.183.02e-285.7290
STV GUHH1.141.11e-293.2290
PZZ GUHH1.121.42e-2120.4300
BHB GUHH1.217.23e-3133.5317


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.
(°)
CANO GUHHZ1.3343e-59.3262e-72.6829e-71.1242e-75.1226e-86.9609e-61.3476e-68.8237e-81.7834e-831.1331
CANO GUHHN1.0494e-51.2934e-65.4598e-71.6393e-76.8779e-81.8605e-53.1172e-61.2830e-72.5528e-831.1331
CANO GUHHE1.0358e-51.0569e-65.5337e-71.6829e-77.8473e-81.9931e-53.4515e-61.0944e-72.0962e-831.1331
RORO GUHHZ5.0709e-65.0820e-71.9825e-76.1956e-82.7112e-81.1738e-56.0778e-74.7768e-81.1064e-833.4299
RORO GUHHN1.2607e-11.4769e-21.0894e-28.0310e-34.7513e-31.2180e-16.8470e-27.0865e-35.5794e-433.4299
RORO GUHHE6.6789e-67.9217e-74.2109e-73.3862e-72.2624e-72.2188e-51.8463e-62.8311e-72.4623e-833.4299
IMI GUHHZ3.1906e-64.0818e-72.8384e-79.0337e-84.0329e-86.1183e-61.7792e-66.5979e-81.1685e-843.6261
IMI GUHHN8.5753e-61.1908e-66.1220e-71.8214e-78.6358e-81.7057e-54.2323e-61.3913e-72.9707e-843.6261
IMI GUHHE5.1036e-66.2260e-72.5198e-76.5902e-83.0774e-81.1622e-51.0172e-64.6953e-81.1554e-843.6261
GBOS GUHHZ1.4405e-61.9392e-79.4390e-82.2270e-81.2353e-85.3462e-64.1306e-72.2581e-84.3001e-956.1303
GBOS GUHHN2.0517e-61.8365e-79.8215e-82.4507e-81.2194e-83.5150e-64.4738e-71.9810e-84.0442e-956.1303
GBOS GUHHE1.3095e-61.4918e-78.1766e-82.4291e-81.0345e-82.8486e-63.7115e-71.7060e-83.2138e-956.1303
PCP GUHHZ9.4395e-71.4308e-78.2506e-83.1600e-81.4352e-82.3611e-63.6621e-71.7861e-83.0024e-964.69
PCP GUHHN1.4605e-62.0763e-78.4603e-82.8130e-81.1805e-83.6841e-63.2470e-71.9450e-84.2324e-964.69
PCP GUHHE1.7148e-62.4014e-71.1871e-73.4787e-81.7308e-85.5366e-65.4126e-72.7543e-84.7814e-964.69
SAOF FRHHZ6.3644e-79.1407e-89.0525e-84.6008e-81.7479e-81.5319e-65.3291e-72.1499e-82.6381e-970.1272
SAOF FRHHN1.2013e-61.2885e-79.5555e-84.2136e-81.6547e-82.1119e-66.1739e-72.6248e-82.6698e-970.1272
SAOF FRHHE1.1067e-61.3817e-71.1273e-75.1163e-81.8266e-82.0628e-66.6489e-72.7118e-83.5527e-970.1272
BURY GUHHZ2.5251e-62.4510e-71.0959e-73.4153e-81.4332e-84.8289e-65.4598e-72.2467e-85.3973e-972.9254
BURY GUHHN3.8770e-64.1082e-71.4910e-75.5132e-82.1435e-86.1852e-67.2378e-73.8636e-89.1136e-972.9254
BURY GUHHE2.8792e-63.1858e-71.4064e-74.2944e-82.3269e-86.2168e-64.8200e-73.8922e-86.9888e-972.9254
ENR GUHHZ2.3375e-62.3598e-71.1433e-72.8125e-81.3527e-84.5066e-67.7440e-72.3152e-84.7143e-985.7290
ENR GUHHN7.5423e-68.3754e-72.1869e-75.4972e-83.3456e-81.6522e-59.0772e-77.4074e-81.7147e-885.7290
ENR GUHHE5.7808e-65.6721e-71.2105e-74.9775e-82.2391e-85.7389e-65.5648e-74.3172e-89.6335e-985.7290
STV GUHHZ9.9867e-71.4959e-79.4988e-82.2682e-81.1350e-82.0522e-65.3864e-71.9784e-83.2032e-993.2290
STV GUHHN1.1247e-62.0319e-71.2315e-74.0238e-81.6181e-82.4725e-65.6795e-72.3633e-84.5075e-993.2290
STV GUHHE1.2278e-62.1635e-71.0719e-72.7358e-81.3699e-82.9143e-63.5778e-72.1547e-84.6403e-993.2290
PZZ GUHHZ5.5158e-71.3802e-71.0433e-73.2580e-81.5731e-81.6231e-66.2498e-72.6631e-83.5758e-9120.4300
PZZ GUHHN6.2129e-71.2616e-71.0857e-74.4693e-81.9469e-81.6893e-65.7260e-73.7532e-83.5842e-9120.4300
PZZ GUHHE6.3104e-71.5248e-71.2697e-74.5432e-81.9349e-81.3473e-67.8145e-72.9633e-84.9571e-9120.4300
BHB GUHHZ8.9457e-71.2121e-74.2059e-82.6573e-81.8562e-81.0217e-62.1322e-73.6031e-81.6767e-9133.5317
BHB GUHHN3.7217e-76.0638e-84.8634e-82.1843e-81.3227e-81.1088e-62.3951e-72.7881e-81.8769e-9133.5317
BHB GUHHE4.4795e-78.1913e-85.9066e-82.8269e-81.9124e-89.3629e-72.3565e-74.4821e-82.2113e-9133.5317
*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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