MANUAL Location - Area: Alpi Graie , magnitude (ML): 0.8
2024-12-30 08:04:39 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2024-12-30 10:07:07

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Earthquake info - Manual location
Event - ID :241230080414
Magnitude (ML) :0.8 +/- 0.2
Origin Time :2024-12-30 08:04:39.096 (UTC)
Location : Latitude: 45.601 N, Longitude: 6.943 E
Area :Alpi Graie
Depth (km) :3.90
Distances (km) : 9.9 --- Valgrisenche
13.0 --- La Thuile
14.0 --- Rhemes-Notre-Dame
17.6 --- Rhemes-Saint-Georges
18.5 --- Pre -Saint-Didier
18.9 --- Morgex
19.0 --- La Salle
19.5 --- Avise
20.7 --- Valsavarenche
20.8 --- Arvier
21.4 --- Introd
21.5 --- Courmayeur
21.6 --- Saint-Nicolas
23.5 --- Villeneuve
25.3 --- Saint-Pierre
25.9 --- Aymavilles
27.7 --- Sarre
28.7 --- Jovencan
29.3 --- Ceresole Reale
29.8 --- Gressan

Quality location estimate: Erh: 0.9 km, Erz: 2.5 km, Nf: 20, Gap: 85 °, 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.
MRGEIV2024-12-30 08:04:43.8600.0120-0.011.942024-12-30 08:04:47.0200.06410.041.7021.6
LSDGU2024-12-30 08:04:43.9500.01300.280.552024-12-30 08:04:46.6500.0712-0.031.7722.5
COURMFR2024-12-30 08:04:44.1310.0602-0.191.032024-12-30 08:04:47.5700.0742-0.141.3825.0
RSLFR2024-12-30 08:04:44.6240.02000.041.782024-12-30 08:04:48.1230.2176-0.011.3126.8
OGMOFR2024-12-30 08:04:47.9400.0200-0.151.332024-12-30 08:04:53.3200.2947-0.750.4248.3
CIROGU2024-12-30 08:04:48.1210.0200-0.760.322024-12-30 08:04:53.7500.1494-1.530.1649.0
RSPGU2024-12-30 08:04:49.5090.0200-0.021.762024-12-30 08:04:55.8120.2126-0.680.4356.5
DIXCH2024-12-30 08:04:51.5680.02000.280.732024-12-30 08:04:58.2980.0400-1.460.1664.4
BHBGU2024-12-30 08:04:54.9700.04520.250.902024-12-30 08:05:03.8500.7619-1.580.2388.9


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
MRGE IVHH0.991.92e-121.626
LSD GUHH0.628.79e-222.5137
COURMFRHH0.781.06e-125.04
CIRO GUHH0.912.08e-249.090
DIX CHHH1.063.07e-264.434
BHB GUHH0.695.91e-388.9163


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.
(°)
MRGE IVHHZ2.2726e-52.3814e-66.6400e-71.8841e-79.1005e-82.5447e-52.0851e-61.8361e-74.6330e-821.626
MRGE IVHHN4.9124e-56.1169e-61.1059e-63.4711e-72.0588e-77.4353e-53.9816e-64.3724e-71.1479e-721.626
MRGE IVHHE4.4845e-54.4382e-66.9819e-71.8935e-71.2307e-73.9927e-52.3748e-63.0612e-77.8379e-821.626
LSD GUHHZ9.1743e-67.6013e-71.9885e-76.7236e-83.7296e-81.1499e-57.7798e-76.8965e-81.4766e-822.5137
LSD GUHHN2.1053e-52.3814e-64.8436e-71.4511e-79.5649e-82.7745e-51.8387e-61.8412e-74.0936e-822.5137
LSD GUHHE2.4284e-52.0415e-64.9889e-71.7947e-71.1322e-72.4029e-52.2007e-62.1695e-74.6781e-822.5137
COURMFRHHZ1.4029e-51.8097e-66.8521e-71.7627e-78.7123e-82.9219e-53.1710e-61.7139e-73.8443e-825.04
COURMFRHHN1.2710e-51.7268e-69.0822e-72.4221e-71.3745e-72.7944e-55.7074e-62.1861e-74.0164e-825.04
COURMFRHHE1.1495e-51.4636e-68.7045e-72.2370e-79.8829e-83.6288e-55.0563e-61.6333e-73.5400e-825.04
CIRO GUHHZ1.2984e-61.5678e-77.6801e-82.5269e-81.2770e-82.5757e-64.4828e-72.1675e-83.1982e-949.090
CIRO GUHHN1.9786e-63.3190e-71.6495e-74.3677e-82.6923e-83.9649e-66.7875e-74.6278e-87.1381e-949.090
CIRO GUHHE1.0073e-69.8173e-85.6733e-81.8938e-88.1237e-91.8653e-62.8896e-71.2745e-82.5447e-949.090
RSP GUHHZ6.6435e-78.2382e-83.6541e-88.3618e-94.5364e-91.2879e-61.1213e-78.4378e-91.8544e-956.5153
RSP GUHHN1.0255e-61.2706e-74.5956e-81.1025e-85.9699e-91.6313e-61.6863e-71.0296e-82.5634e-956.5153
RSP GUHHE7.3554e-71.0591e-75.4787e-81.2397e-86.9141e-91.5571e-62.2139e-71.1533e-82.6557e-956.5153
DIX CHHHZ2.4205e-62.9535e-71.8883e-77.0852e-82.6535e-84.4959e-67.7162e-74.3139e-87.3160e-964.434
DIX CHHHN2.6400e-63.6209e-72.7364e-71.1227e-74.0274e-85.8667e-61.3903e-66.1809e-81.0275e-864.434
DIX CHHHE3.1203e-63.8863e-71.8857e-76.4549e-82.8409e-85.8979e-66.4134e-74.6780e-88.5958e-964.434
BHB GUHHZ1.4409e-61.4059e-74.1329e-81.4094e-87.9374e-92.3542e-61.6379e-71.3876e-82.4406e-988.9163
BHB GUHHN7.7941e-79.3963e-85.6052e-81.6415e-89.3117e-92.2281e-62.0421e-71.4698e-82.1526e-988.9163
BHB GUHHE2.8822e-62.0320e-74.3097e-81.4613e-87.7597e-91.7738e-61.7932e-71.4147e-83.5831e-988.9163
*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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