MANUAL Location - Area: Alpi Marittime , magnitude (ML): 0.3
2024-04-30 22:11:42 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2024-05-02 07:53:44

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Earthquake info - Manual location
Event - ID :240430221018
Magnitude (ML) :0.3 +/- 0.2
Origin Time :2024-04-30 22:11:42.84 (UTC)
Location : Latitude: 44.075 N, Longitude: 7.193 E
Area :Alpi Marittime
Depth (km) :16.27
Distances (km) : 24.7 --- Entracque
26.1 --- Vinadio
26.7 --- Aisone
27.9 --- Valdieri
28.1 --- Demonte
30.2 --- Roaschia
30.9 --- Sambuco
31.6 --- Moiola
32.6 --- Pietraporzio
32.8 --- Valloriate
33.2 --- Vernante
33.7 --- Olivetta San Michele
33.7 --- Limone Piemonte
33.8 --- Gaiola
34.9 --- Rittana
35.3 --- Roccavione
35.4 --- Robilante
35.7 --- Roccasparvera
36.6 --- Airole
37.1 --- Borgo San Dalmazzo

Quality location estimate: Erh: 0.7 km, Erz: 0.4 km, Nf: 16, Gap: 127 °, 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.
ISOFR2024-04-30 22:11:48.2050.02000.960.002024-04-30 22:11:50.3140.0400-0.001.7023.9
TURFFR2024-04-30 22:11:48.0540.02000.171.022024-04-30 22:11:50.6840.0400-0.890.1925.3
MVIFFR2024-04-30 22:11:48.4670.02000.520.322024-04-30 22:11:51.6110.0400-0.091.4325.8
STVGU2024-04-30 22:11:48.2070.02000.260.472024-04-30 22:11:51.3170.0400-0.131.2427.8
ENRGU2024-04-30 22:11:48.8210.06020.500.342024-04-30 22:11:52.1410.04000.031.6630.4
SAOFFR2024-04-30 22:11:49.6750.0803-0.091.452024-04-30 22:11:53.8410.0400-0.820.1934.9
ESCAFR2024-04-30 22:11:49.6210.02000.091.512024-04-30 22:11:54.2440.0400-0.051.5335.0
PZZGU2024-04-30 22:11:52.5280.02000.051.632024-04-30 22:11:59.0860.0400-0.081.3251.6


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
TURF FRHH0.011.76e-225.3125
STV GUHH0.392.39e-227.829
ENR GUHH0.728.80e-230.446
ESCA FRHH0.261.69e-235.0152
PZZ GUHH0.271.35e-251.6353


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.
(°)
ISO FRHHZ1.8813e-62.6958e-71.3062e-75.7048e-82.5688e-84.8124e-67.4221e-73.7797e-85.7401e-923.9317
ISO FRHHN2.1097e-62.9601e-71.3762e-74.6328e-82.6432e-87.3311e-67.1582e-73.4905e-86.4600e-923.9317
ISO FRHHE1.7509e-62.2573e-71.2198e-74.7036e-81.9916e-83.5605e-66.3678e-73.1173e-85.4535e-923.9317
TURF FRHHZ5.9782e-71.6480e-71.4458e-79.6384e-84.4487e-81.1070e-69.2184e-76.4580e-84.9310e-925.3125
TURF FRHHN7.0505e-71.3977e-71.1278e-77.3099e-83.4020e-81.3089e-66.0195e-73.7048e-83.6466e-925.3125
TURF FRHHE6.9054e-71.7274e-71.3362e-78.4329e-85.0072e-81.4274e-67.4655e-76.4791e-85.3769e-925.3125
STV GUHHZ1.7101e-62.4212e-71.3514e-75.5924e-82.4700e-82.7377e-66.8995e-73.7934e-84.9230e-927.829
STV GUHHN1.7593e-62.6362e-71.8507e-76.7351e-83.5791e-84.7865e-67.7386e-75.0763e-86.9236e-927.829
STV GUHHE1.1905e-62.4462e-72.0236e-79.8611e-84.7536e-83.9219e-61.3059e-66.2414e-86.7280e-927.829
ENR GUHHZ3.6619e-65.5358e-73.2788e-79.3882e-84.0476e-85.5969e-62.2404e-66.1560e-81.1792e-830.446
ENR GUHHN1.0475e-51.4771e-66.9066e-71.6417e-79.3818e-81.4496e-53.2075e-61.5706e-73.7703e-830.446
ENR GUHHE8.5082e-69.9617e-76.2744e-72.0143e-79.7041e-81.5364e-54.1009e-61.4888e-72.4733e-830.446
SAOF FRHHZ2.4844e-77.8842e-86.9882e-85.9458e-82.9021e-84.9542e-76.4439e-73.0431e-82.8686e-934.9108
SAOF FRHHN2.1871e-76.2017e-86.2235e-85.2625e-82.2130e-84.2704e-74.0679e-72.5967e-82.4082e-934.9108
SAOF FRHHE2.3841e-75.9656e-86.0212e-84.6378e-82.5870e-87.0485e-76.0363e-73.6436e-82.7159e-934.9108
ESCA FRHHZ4.6353e-71.3302e-71.1604e-76.0331e-82.2435e-88.7076e-77.5401e-72.9716e-83.9844e-935.0152
ESCA FRHHN6.0467e-71.4352e-71.4147e-77.0207e-82.9434e-81.5798e-67.8192e-73.7562e-84.7791e-935.0152
ESCA FRHHE7.3830e-71.4717e-71.2254e-78.1300e-88.4108e-81.6482e-68.5198e-71.5069e-71.0606e-835.0152
PZZ GUHHZ8.4066e-71.4259e-71.1922e-74.0982e-82.6467e-82.5909e-64.9274e-73.4755e-83.6568e-951.6353
PZZ GUHHN8.3642e-71.3923e-71.0280e-76.3082e-83.0982e-81.7781e-66.0125e-73.5803e-83.8897e-951.6353
PZZ GUHHE8.6997e-71.6420e-71.2386e-75.1588e-82.8261e-82.2132e-66.3061e-72.7884e-83.9720e-951.6353
*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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