MANUAL Location - Area: Alpi Pennine , magnitude (ML): 0.3
2021-02-28 11:06:04 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2021-03-01 08:22:20

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Earthquake info - Manual location
Event - ID :210228110447
Magnitude (ML) :0.3 +/- 0.1
Origin Time :2021-02-28 11:06:04.713 (UTC)
Location : Latitude: 45.924 N, Longitude: 7.823 E
Area :Alpi Pennine
Depth (km) :5.14
Distances (km) : 10.4 --- Gressoney-la-Trinite
11.7 --- Alagna Valsesia
12.4 --- Macugnaga
14.3 --- Rima San Giuseppe
14.4 --- Riva Valdobbia
16.0 --- Gressoney-Saint-Jean
16.0 --- Ayas
16.2 --- Valtournenche
17.6 --- Carcoforo
18.1 --- Chamois
19.6 --- Brusson
19.8 --- Ceppo Morelli
19.9 --- Rimasco
20.1 --- Mollia
20.2 --- La Magdeleine
21.3 --- Campertogno
22.1 --- Antey-Saint-Andre
22.6 --- Rassa
22.9 --- Vanzone con San Carlo
23.4 --- Saint-Vincent

Quality location estimate: Erh: 1.1 km, Erz: 0.4 km, Nf: 14, Gap: 108 °, Rms: 0.12


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.
SATIGU2021-02-28 11:06:07.4400.06630.230.832021-02-28 11:06:08.9460.0400-0.012.0110.4
MMKCH2021-02-28 11:06:07.1040.0653-1.610.012021-02-28 11:06:08.6720.0400-2.740.0019.4
EMBDCH2021-02-28 11:06:09.9560.0200-1.270.002021-02-28 11:06:13.6030.0400-1.980.0132.9
VANNICH2021-02-28 11:06:11.6770.02000.012.012021-02-28 11:06:15.7920.0400-0.530.0136.6
DIXCH2021-02-28 11:06:12.0040.0200-0.051.732021-02-28 11:06:17.1240.04000.141.4437.5
CIROGU2021-02-28 11:06:13.0260.02000.071.802021-02-28 11:06:18.5050.0400-0.041.5041.6
TRAVGU2021-02-28 11:06:13.3630.0200-0.031.822021-02-28 11:06:19.4860.04000.270.8246.5


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
SATI GUHH0.228.06e-210.4147
MMK CHHH0.454.23e-219.438
DIX CHHH0.381.93e-237.5298
CIRO GUHH0.297.00e-341.6209
TRAV GUHH0.291.23e-246.5187


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.
(°)
SATI GUHHZ1.0657e-58.7953e-72.0339e-77.6290e-84.6102e-88.3181e-69.0717e-79.0807e-82.0187e-810.4147
SATI GUHHN2.4374e-52.3783e-64.8686e-71.6952e-71.0714e-72.5113e-51.8974e-62.2452e-75.0384e-810.4147
SATI GUHHE1.1849e-51.0495e-62.4730e-77.9533e-85.1170e-81.0243e-51.1374e-69.6939e-82.0629e-810.4147
MMK CHHHZ7.7402e-67.3190e-71.4436e-74.1913e-82.3007e-85.8079e-67.2382e-74.8810e-81.3898e-819.438
MMK CHHHN1.2130e-59.4743e-73.1920e-78.7440e-84.4982e-81.5493e-51.3340e-68.9201e-82.0354e-819.438
MMK CHHHE1.9760e-51.6146e-62.9705e-77.2933e-84.5651e-81.3677e-51.0231e-61.1151e-73.2353e-819.438
DIX CHHHZ3.4471e-63.4589e-71.0139e-72.4620e-81.9536e-86.1125e-65.0879e-73.5370e-87.5729e-937.5298
DIX CHHHN4.6135e-64.0873e-71.6243e-74.1992e-82.8590e-88.9825e-67.4606e-75.0504e-88.9406e-937.5298
DIX CHHHE3.9779e-63.1581e-79.3887e-82.7075e-81.8305e-83.5166e-65.0346e-72.6963e-86.3069e-937.5298
CIRO GUHHZ1.2872e-61.4201e-75.7370e-82.1282e-89.5434e-92.1688e-62.6659e-71.5018e-83.5275e-941.6209
CIRO GUHHN1.9355e-61.8367e-74.7097e-81.5975e-81.6358e-82.6281e-61.6543e-73.4920e-85.3241e-941.6209
CIRO GUHHE1.5778e-61.6358e-73.5388e-81.4638e-88.9919e-91.5460e-62.0697e-71.3633e-82.8830e-941.6209
TRAV GUHHZ1.9023e-61.4235e-75.3537e-82.4518e-81.0960e-82.4091e-62.4953e-71.4675e-82.4536e-946.5187
TRAV GUHHN3.3041e-63.7893e-79.2306e-82.1236e-81.2571e-83.6444e-63.8674e-73.0824e-87.4013e-946.5187
TRAV GUHHE1.9792e-62.6591e-71.0058e-72.9431e-81.6889e-83.8632e-65.9529e-73.0949e-86.3391e-946.5187
*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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