MANUAL Location - Area: Alpi Graie , magnitude (ML): 0.6
2025-02-02 16:48:48 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-02-03 08:32:51

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Earthquake info - Manual location
Event - ID :250202164824
Magnitude (ML) :0.6 +/- 0.2
Origin Time :2025-02-02 16:48:48.051 (UTC)
Location : Latitude: 45.597 N, Longitude: 6.865 E
Area :Alpi Graie
Depth (km) :8.02
Distances (km) : 15.0 --- La Thuile
15.9 --- Valgrisenche
19.9 --- Rhemes-Notre-Dame
20.9 --- Pre -Saint-Didier
22.4 --- Morgex
23.1 --- La Salle
23.4 --- Courmayeur
23.5 --- Rhemes-Saint-Georges
24.8 --- Avise
26.3 --- Arvier
26.8 --- Valsavarenche
27.0 --- Saint-Nicolas
27.1 --- Introd
29.2 --- Villeneuve
31.0 --- Saint-Pierre
31.7 --- Aymavilles
33.4 --- Sarre
34.0 --- Ceresole Reale
34.4 --- Jovencan
35.0 --- Saint-Rhemy-En-Bosses

Quality location estimate: Erh: 1.3 km, Erz: 1.2 km, Nf: 28, Gap: 99 °, Rms: 0.29


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.
RSLFR2025-02-02 16:48:52.6700.01300.001.702025-02-02 16:48:54.9600.1002-0.750.5022.7
MRGEIV2025-02-02 16:48:53.5000.01500.021.602025-02-02 16:48:56.5660.0712-0.520.9026.4
COURMFR2025-02-02 16:48:53.6340.0160-0.021.672025-02-02 16:48:57.2600.0802-0.121.2627.7
LSDGU2025-02-02 16:48:53.5100.01600.071.222025-02-02 16:48:56.5090.0752-0.530.9027.9
BLANCGU2025-02-02 16:48:54.1330.02000.031.542025-02-02 16:48:58.1100.0912-0.081.2930.3
REMYGU2025-02-02 16:48:55.2940.0200-0.031.582025-02-02 16:48:59.9400.0992-0.300.9936.6
OGMOFR2025-02-02 16:48:56.4630.0200-0.071.442025-02-02 16:49:01.9740.0400-0.310.9746.2
CIROGU2025-02-02 16:48:58.0350.0200-0.640.762025-02-02 16:49:04.2900.1514-1.390.1155.7
LATOIV2025-02-02 16:48:57.8400.0200-0.730.532025-02-02 16:49:04.9560.0400-0.590.7957.6
RSPGU2025-02-02 16:48:58.7100.0311-0.091.342025-02-02 16:49:05.7900.1825-0.291.0359.6
DIXCH2025-02-02 16:49:00.2980.0200-0.470.912025-02-02 16:49:08.3830.0400-1.230.1468.9
RRLGU2025-02-02 16:49:01.4100.0200-0.280.972025-02-02 16:49:09.7340.0400-1.330.1376.0
BHBGU2025-02-02 16:49:03.8510.0200-0.011.192025-02-02 16:49:14.7400.3007-0.000.7890.6


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
MRGE IVHH0.575.02e-226.438
LSD GUHH0.605.66e-227.9126
BLANCGUHH0.493.83e-230.311
REMY GUHH0.251.52e-236.640
CIRO GUHH0.496.08e-355.789
RSP GUHH0.306.80e-359.6148
RRL GUHH0.909.98e-376.0184
BHB GUHH0.961.06e-290.6160


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 IVHHZ6.2992e-65.7406e-72.8251e-78.9972e-84.9474e-87.2368e-61.6048e-68.4879e-81.4661e-826.438
MRGE IVHHN1.4432e-51.5602e-63.2210e-71.0170e-75.4159e-82.3207e-51.3400e-61.0851e-73.3829e-826.438
MRGE IVHHE1.1332e-51.2666e-62.7275e-78.6456e-84.8380e-81.5521e-51.1436e-61.0546e-72.4427e-826.438
COURMFRHHZ1.4829e-52.1246e-69.1805e-71.8121e-79.7359e-85.2392e-52.7951e-61.8219e-74.1224e-827.717
COURMFRHHN1.6894e-52.5722e-61.4131e-64.1925e-71.8302e-76.9352e-57.0517e-62.8848e-75.4127e-827.717
COURMFRHHE1.9903e-53.8278e-61.7019e-66.8752e-73.0008e-79.1325e-54.8667e-64.5690e-78.1085e-827.717
LSD GUHHZ4.0782e-67.6877e-75.1439e-71.5732e-78.0468e-88.7857e-62.2293e-61.2768e-72.0502e-827.9126
LSD GUHHN6.5996e-67.7802e-74.7360e-71.3922e-77.6642e-81.7214e-51.7405e-61.1808e-71.9709e-827.9126
LSD GUHHE7.0370e-69.1209e-75.7263e-71.3063e-77.0760e-81.4306e-52.6137e-61.1057e-71.9878e-827.9126
BLANCGUHHZ2.1443e-62.9855e-71.4672e-75.6517e-82.4012e-86.6313e-69.0520e-73.8920e-86.9787e-930.311
BLANCGUHHN3.4623e-64.2119e-72.1133e-71.1455e-74.8342e-86.7113e-69.3756e-76.8141e-81.1731e-830.311
BLANCGUHHE2.6810e-64.7133e-73.3100e-71.4928e-79.1176e-88.8745e-61.4268e-61.2247e-71.1955e-830.311
REMY GUHHZ1.1537e-61.7114e-71.0875e-74.5029e-82.3783e-83.2236e-64.2750e-72.4430e-83.8341e-936.640
REMY GUHHN1.4997e-62.5321e-71.3806e-77.1607e-82.9855e-86.1157e-66.7634e-73.6778e-85.3857e-936.640
REMY GUHHE1.3821e-62.2520e-71.4497e-77.3536e-83.2519e-83.7931e-66.3485e-74.2104e-86.0455e-936.640
CIRO GUHHZ8.3377e-79.4773e-84.7122e-81.6139e-87.8582e-91.8414e-62.3287e-71.2617e-81.9766e-955.789
CIRO GUHHN7.8748e-79.3507e-86.4252e-82.0280e-89.3059e-92.4452e-62.9069e-71.4911e-82.2868e-955.789
CIRO GUHHE7.0927e-78.7670e-84.0944e-81.9968e-88.0834e-91.4614e-62.0029e-71.3725e-82.0486e-955.789
RSP GUHHZ3.8397e-75.2187e-83.0181e-81.0771e-84.7425e-91.0227e-61.1161e-76.9055e-91.2479e-959.6148
RSP GUHHN4.6944e-77.3877e-84.9883e-81.5814e-87.7759e-91.1292e-61.8514e-71.2151e-81.9328e-959.6148
RSP GUHHE6.0650e-71.0429e-76.2389e-81.8881e-81.1980e-82.2808e-62.0389e-72.1176e-83.0959e-959.6148
DIX CHHHZ2.0164e-63.9648e-72.3044e-77.9452e-84.0223e-84.9830e-61.4352e-65.0815e-88.6014e-968.938
DIX CHHHN2.1573e-63.3541e-72.6294e-71.0486e-74.0892e-84.3861e-61.1587e-65.6703e-88.3420e-968.938
DIX CHHHE2.1312e-62.7625e-71.9251e-75.9469e-82.9867e-85.4189e-61.2325e-64.9365e-87.1945e-968.938
RRL GUHHZ2.2080e-75.1341e-83.7038e-83.3307e-82.8406e-86.7275e-72.6571e-74.3405e-87.9645e-976.0184
RRL GUHHN3.3982e-78.0294e-86.7805e-84.3192e-84.3694e-81.1529e-63.8363e-76.7729e-85.7524e-976.0184
RRL GUHHE2.6539e-77.6062e-86.2309e-82.8021e-81.4258e-86.2921e-74.4191e-72.1560e-82.1394e-976.0184
BHB GUHHZ3.6334e-77.5253e-85.8040e-81.9829e-81.8315e-81.1690e-62.0846e-74.0261e-82.1832e-990.6160
BHB GUHHN6.2676e-71.5238e-79.3057e-82.2122e-81.6873e-81.6778e-64.3879e-72.8706e-84.2962e-990.6160
BHB GUHHE3.2501e-77.1912e-85.3193e-82.0031e-81.6195e-81.0792e-61.9471e-73.2580e-82.1035e-990.6160
*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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