MANUAL Location - Area: Alpi Pennine , magnitude (ML): 1.2
2025-09-12 19:28:33 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-09-15 07:49:08

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Earthquake info - Manual location
Event - ID :250912192658
Magnitude (ML) :1.2 +/- 0.2
Origin Time :2025-09-12 19:28:33.159 (UTC)
Location : Latitude: 45.889 N, Longitude: 7.001 E
Area :Alpi Pennine
Depth (km) :4.46
Distances (km) : 10.8 --- Courmayeur
13.8 --- Pre -Saint-Didier
14.7 --- Morgex
15.6 --- Saint-Rhemy-En-Bosses
16.6 --- La Salle
17.7 --- Saint-Oyen
19.1 --- Etroubles
19.4 --- La Thuile
22.6 --- Avise
22.7 --- Allein
22.9 --- Saint-Nicolas
24.2 --- Arvier
24.2 --- Ollomont
24.8 --- Doues
25.7 --- Gignod
26.0 --- Valpelline
26.1 --- Villeneuve
26.2 --- Introd
26.5 --- Saint-Pierre
26.7 --- Roisan

Quality location estimate: Erh: 0.6 km, Erz: 0.3 km, Nf: 38, Gap: 139 °, Rms: 0.26


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.
COURMFR2025-09-12 19:28:35.5300.00500.001.942025-09-12 19:28:36.6180.0350-0.460.9010.1
REMYGU2025-09-12 19:28:36.7400.0070-0.011.922025-09-12 19:28:39.2240.24560.071.1515.0
MRGEIV2025-09-12 19:28:36.6400.00800.011.942025-09-12 19:28:38.3300.1985-0.590.6615.3
AOSAIT2025-09-12 19:28:38.3720.0200-1.340.162025-09-12 19:28:44.1780.0400-0.021.6233.0
RSLFR2025-09-12 19:28:40.5400.01900.001.822025-09-12 19:28:45.0100.1143-0.440.9036.9
DIXCH2025-09-12 19:28:40.8300.0190-0.340.952025-09-12 19:28:45.6520.1153-0.910.2538.3
LSDGU2025-09-12 19:28:42.3700.0492-0.021.682025-09-12 19:28:48.2000.1504-0.420.9449.2
SENINCH2025-09-12 19:28:44.2600.0200-0.201.202025-09-12 19:28:51.3330.1815-0.940.3157.9
VANNICH2025-09-12 19:28:44.2360.02000.011.632025-09-12 19:28:51.0910.0400-0.690.4958.5
SATIGU2025-09-12 19:28:45.8160.02000.181.022025-09-12 19:28:54.6740.0400-0.041.3267.5
EMBDCH2025-09-12 19:28:46.3370.0200-0.440.912025-09-12 19:28:56.1820.04000.041.2373.9
LATOIV2025-09-12 19:28:46.8890.02000.280.622025-09-12 19:28:55.3690.0400-0.231.2074.7
MMKCH2025-09-12 19:28:47.1010.02000.101.332025-09-12 19:28:56.2930.0400-0.371.0176.9
LAUCHCH2025-09-12 19:28:48.2280.0200-0.211.242025-09-12 19:28:59.8910.04000.880.0883.6
RSPGU2025-09-12 19:28:48.4670.02000.240.792025-09-12 19:28:59.8110.04001.350.0285.0
FIESACH2025-09-12 19:28:52.0350.1777-0.191.212025-09-12 19:29:05.8780.04000.480.46105.0
RRLGU2025-09-12 19:28:50.9720.0200-1.520.112025-09-12 19:29:05.4330.0400-0.291.05109.0


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
MRGE IVHH1.043.98e-115.3161
AOSA ITHN1.493.20e-133.0120
DIX CHHH1.341.70e-138.355
LSD GUHH1.075.57e-249.2168
VANNICHHH0.993.22e-258.552
SATI GUHH1.031.49e-267.591
MMK CHHH1.071.16e-276.976
LAUCHCHHH1.292.95e-283.645
RSP GUHH1.212.52e-285.0166
FIESACHHH1.472.61e-2105.054
RRL GUHH1.461.59e-2109.0189


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.
(°)
COURMFRHHZ1.0698e-42.6976e-51.8066e-57.2620e-63.1375e-63.3867e-41.0868e-43.9402e-66.9434e-710.1201
COURMFRHHN1.2484e-43.0144e-52.6054e-52.0521e-59.0215e-64.5530e-49.1058e-51.1221e-58.7142e-710.1201
COURMFRHHE1.2303e-42.9047e-52.0886e-51.1842e-53.8008e-62.5199e-47.8062e-55.2505e-68.2102e-710.1201
REMY GUHHZ7.8861e-61.9350e-61.3130e-61.2984e-67.9312e-71.3146e-57.5917e-61.1413e-67.5714e-815.0115
REMY GUHHN6.6221e-61.7995e-61.2634e-68.5005e-75.1752e-71.6586e-55.8168e-66.0681e-74.3177e-815.0115
REMY GUHHE8.8380e-62.0546e-61.3064e-61.2710e-66.8312e-72.2478e-54.8079e-68.2703e-75.5676e-815.0115
MRGE IVHHZ2.6902e-54.6029e-62.4312e-61.2836e-66.9238e-74.9539e-57.5116e-69.4536e-71.0900e-715.3161
MRGE IVHHN3.6651e-56.0796e-62.7889e-61.9417e-69.4304e-74.7615e-51.3888e-51.2698e-61.0996e-715.3161
MRGE IVHHE3.7181e-54.6670e-62.6626e-62.1499e-61.0278e-64.3175e-51.1650e-51.5173e-61.5789e-715.3161
AOSA ITHNZ2.5064e-52.8257e-62.2774e-61.7644e-69.2370e-72.0869e-51.5027e-51.1121e-68.6927e-833.0120
AOSA ITHNN8.6060e-62.2292e-62.1263e-61.2764e-65.1480e-72.5915e-51.3678e-57.0054e-77.3068e-833.0120
AOSA ITHNE7.9615e-62.6467e-62.6108e-62.0499e-61.2656e-62.2232e-51.9371e-52.0046e-61.5583e-733.0120
DIX CHHHZ7.8623e-61.8936e-61.3258e-64.0298e-72.0147e-72.1450e-56.4998e-63.0744e-74.9306e-838.355
DIX CHHHN7.8886e-61.4807e-61.2887e-64.3456e-72.0092e-72.4790e-58.0103e-62.4513e-73.4172e-838.355
DIX CHHHE9.6125e-62.1164e-61.6413e-65.2893e-72.3268e-73.1643e-57.6688e-63.5985e-75.4338e-838.355
LSD GUHHZ1.3887e-63.0881e-72.8086e-79.7171e-84.1445e-85.3180e-61.5126e-65.6216e-88.1466e-949.2168
LSD GUHHN1.7900e-63.5698e-72.8390e-78.6158e-84.5255e-84.4591e-61.8597e-66.3383e-88.3136e-949.2168
LSD GUHHE2.7536e-66.9302e-75.3628e-71.8504e-77.8015e-86.2400e-62.7824e-61.1623e-71.8519e-849.2168
SENINCHHHZ4.5186e-61.4119e-69.7614e-75.6898e-72.3013e-71.1751e-55.0006e-63.0047e-74.2288e-857.923
SENINCHHHN3.8297e-61.1799e-69.3533e-75.4663e-72.0795e-78.5303e-67.2669e-62.7330e-73.5636e-857.923
SENINCHHHE4.7923e-61.9664e-61.3482e-67.3580e-73.6516e-79.1000e-69.6336e-64.7684e-76.1528e-857.923
VANNICHHHZ7.3562e-71.6586e-71.5313e-76.5511e-82.4456e-81.7157e-67.0632e-73.1079e-83.9959e-958.552
VANNICHHHN7.6368e-72.7227e-72.0037e-71.1347e-74.4393e-81.5602e-61.1237e-65.3965e-85.9589e-958.552
VANNICHHHE9.0892e-71.9080e-71.8038e-79.6007e-83.5706e-81.7711e-68.7768e-75.1659e-86.7403e-958.552
SATI GUHHZ7.9689e-71.3114e-71.0483e-74.7262e-81.6746e-83.4506e-65.1682e-72.1734e-83.0650e-967.591
SATI GUHHN1.8691e-62.9418e-71.3078e-74.9294e-82.2082e-84.7883e-69.0783e-73.5413e-86.7924e-967.591
SATI GUHHE1.5829e-62.4648e-71.3837e-75.8476e-82.3288e-85.5153e-66.8517e-73.1447e-85.2230e-967.591
EMBD CHHHZ7.5303e-71.6243e-71.6444e-71.0558e-73.1852e-81.9126e-68.4029e-73.9881e-85.5268e-973.960
EMBD CHHHN7.5123e-71.5597e-71.2893e-76.7350e-82.1418e-82.5176e-67.5885e-72.7459e-84.0782e-973.960
EMBD CHHHE6.4084e-71.4623e-71.2133e-75.4669e-82.2335e-81.1866e-67.4450e-72.8471e-83.9354e-973.960
MMK CHHHZ7.6090e-71.6163e-71.4959e-74.9013e-82.1657e-82.5230e-69.8163e-72.8270e-83.7603e-976.976
MMK CHHHN8.2747e-71.6136e-71.3265e-74.0095e-82.0255e-83.5882e-66.9657e-73.1083e-83.7615e-976.976
MMK CHHHE5.9489e-71.2228e-71.0003e-73.6903e-81.6837e-81.2864e-66.2155e-72.5591e-83.2209e-976.976
LAUCHCHHHZ8.6567e-71.5674e-71.1666e-74.7834e-82.2029e-84.6981e-65.6340e-72.6206e-84.2420e-983.645
LAUCHCHHHN1.3477e-62.5729e-71.7188e-76.7375e-82.6794e-85.2838e-68.1430e-73.8779e-86.1918e-983.645
LAUCHCHHHE1.8269e-64.4510e-73.2324e-77.1555e-84.1812e-85.8625e-61.2892e-66.7017e-81.1174e-883.645
RSP GUHHZ5.5109e-71.3800e-71.3225e-74.5951e-82.3491e-81.5995e-68.1324e-73.3444e-84.1909e-985.0166
RSP GUHHN1.0695e-62.6887e-72.2353e-76.5386e-83.2955e-82.4898e-61.2172e-64.4308e-86.7736e-985.0166
RSP GUHHE9.5696e-72.8325e-72.1765e-77.6081e-83.2131e-82.1264e-61.2395e-64.2478e-87.3756e-985.0166
FIESACHHHZ8.8295e-71.8258e-71.9973e-71.1914e-74.2594e-82.7660e-61.1522e-65.2277e-87.0064e-9105.054
FIESACHHHN1.0243e-62.0430e-72.4136e-71.2166e-76.0537e-82.7313e-61.7593e-67.4458e-86.7143e-9105.054
FIESACHHHE8.8749e-72.2369e-72.2227e-71.1802e-75.9355e-82.0956e-61.7757e-67.7674e-86.7505e-9105.054
RRL GUHHZ1.7110e-74.2568e-84.4898e-83.3758e-81.3096e-86.4927e-72.7306e-71.7384e-81.6667e-9109.0189
RRL GUHHN2.7788e-71.0844e-79.4235e-85.0543e-82.9155e-84.5393e-78.7839e-73.2444e-83.2734e-9109.0189
RRL GUHHE2.6205e-71.0546e-79.6252e-86.8836e-84.2164e-84.8549e-77.5834e-76.5162e-85.8843e-9109.0189
*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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