MANUAL Location - Area: Alpi Graie , magnitude (ML): 1.1
2026-05-03 06:38:22 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2026-05-04 07:43:07

RSNI Logo


Earthquake info - Manual location
Event - ID :260503063652
Magnitude (ML) :1.1 +/- 0.2
Origin Time :2026-05-03 06:38:22.37 (UTC)
Location : Latitude: 45.379 N, Longitude: 7.299 E
Area :Alpi Graie
Depth (km) :6.08
Distances (km) : 1.7 --- Groscavallo
3.7 --- Chialamberto
7.0 --- Ala di Stura
7.4 --- Cantoira
7.9 --- Ceresole Reale
8.6 --- Noasca
10.0 --- Ceres
10.6 --- Balme
11.9 --- Mezzenile
12.9 --- Pessinetto
13.3 --- Locana
14.0 --- Monastero di Lanzo
15.3 --- Coassolo Torinese
15.8 --- Traves
16.6 --- Viu
16.7 --- Lemie
17.0 --- Ribordone
17.3 --- Usseglio
18.5 --- Germagnano
18.5 --- Lanzo Torinese

Quality location estimate: Erh: 0.9 km, Erz: 0.7 km, Nf: 44, Gap: 59 °, Rms: 0.36


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.
LATOIV2026-05-03 06:38:25.9850.02000.011.822026-05-03 06:38:27.8340.0400-0.501.0416.6
LSDGU2026-05-03 06:38:26.0800.0150-0.011.852026-05-03 06:38:27.9900.0561-0.601.1217.8
RSPGU2026-05-03 06:38:27.5500.01800.011.812026-05-03 06:38:30.1820.1213-0.900.5426.8
CANIGU2026-05-03 06:38:28.4870.0200-0.181.332026-05-03 06:38:32.2090.0400-0.591.1032.0
CIROGU2026-05-03 06:38:28.7300.0211-0.680.982026-05-03 06:38:32.4900.0902-1.530.1633.5
AOSAIT2026-05-03 06:38:30.0260.02000.061.492026-05-03 06:38:34.6650.0400-0.261.2140.9
FENEIV2026-05-03 06:38:30.1390.0200-0.191.332026-05-03 06:38:35.2940.0400-0.541.0843.7
MRGEIV2026-05-03 06:38:31.2800.0281-0.101.622026-05-03 06:38:37.5400.14540.181.0147.8
OGMOFR2026-05-03 06:38:31.6100.1296-0.461.092026-05-03 06:38:38.1500.2186-0.471.1252.2
BLANCGU2026-05-03 06:38:33.4700.03310.061.442026-05-03 06:38:40.4810.0400-0.351.1959.7
MONCIV2026-05-03 06:38:35.0130.02000.850.122026-05-03 06:38:44.4380.04001.280.0260.1
BHBGU2026-05-03 06:38:33.4100.04720.510.382026-05-03 06:38:40.4600.18550.121.0960.9
RRLGU2026-05-03 06:38:34.0400.0341-0.111.562026-05-03 06:38:41.7180.3888-0.570.9765.2
SATIGU2026-05-03 06:38:34.9200.0381-0.651.012026-05-03 06:38:43.1420.1002-1.270.2971.3
DIXCH2026-05-03 06:38:36.3320.0200-0.081.552026-05-03 06:38:44.9000.3778-1.230.4178.8
PONCIV2026-05-03 06:38:37.9480.02000.550.382026-05-03 06:38:46.9090.0400-1.080.4486.7
MMKCH2026-05-03 06:38:38.2600.0482-0.031.482026-05-03 06:38:48.2400.2677-0.820.7591.2
PZZGU2026-05-03 06:38:39.5400.05020.480.442026-05-03 06:38:50.6200.2997-0.331.1298.3
SENINCH2026-05-03 06:38:41.9230.02000.550.402026-05-03 06:38:54.3570.0400-0.241.23109.7
SIMPLCH2026-05-03 06:38:41.6460.10040.021.302026-05-03 06:38:53.5250.5069-1.310.41111.0
FIESACH2026-05-03 06:38:45.2260.02000.041.252026-05-03 06:39:00.0000.0400-0.930.64133.3


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
LSD GUHH1.154.69e-117.8305
RSP GUHH0.831.10e-126.8186
CANI GUHH1.031.17e-132.078
CIRO GUHH1.411.39e-133.540
AOSA ITHN1.461.97e-140.97
FENE IVHH0.884.56e-243.7206
MRGE IVHH0.893.34e-247.8337
MONC IVHH0.792.84e-260.1124
BHB GUHH1.234.67e-260.9183
RRL GUHH0.841.24e-265.2218
SATI GUHH1.161.80e-271.339
DIX CHHH1.404.31e-278.86
PONC IVHH1.322.94e-286.7195
MMK CHHH1.181.00e-291.234
PZZ GUHH1.222.92e-298.3189
SENINCHHH1.171.19e-2109.7360
SIMPLCHHH0.825.14e-3111.030
FIESACHHH1.248.42e-3133.328


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.
(°)
LSD GUHHZ3.8224e-54.2839e-61.3130e-64.3011e-71.9146e-77.2578e-55.7971e-63.5020e-79.0243e-817.8305
LSD GUHHN1.2774e-41.2034e-52.5731e-69.5648e-76.4692e-71.3803e-49.4438e-61.2922e-62.6007e-717.8305
LSD GUHHE1.0501e-41.2119e-52.4084e-68.9821e-75.5867e-71.1359e-41.2622e-51.1315e-62.6002e-717.8305
RSP GUHHZ1.7534e-51.6646e-64.6962e-71.3987e-78.0138e-81.8487e-51.9094e-61.5000e-73.7400e-826.8186
RSP GUHHN1.9982e-52.2024e-67.5512e-72.0974e-71.1919e-73.3847e-52.4562e-61.9586e-73.9476e-826.8186
RSP GUHHE1.9328e-52.3125e-68.6253e-72.2785e-71.2427e-73.9392e-52.6329e-62.0357e-75.0998e-826.8186
CANI GUHHZ1.8480e-52.3123e-66.8264e-71.7892e-71.0684e-73.4872e-52.5146e-61.8989e-74.7326e-832.078
CANI GUHHN2.2937e-53.0224e-68.5531e-72.2516e-71.3608e-73.8946e-53.5620e-62.3341e-76.4332e-832.078
CANI GUHHE2.3045e-52.2965e-65.2715e-71.2921e-77.7614e-83.0858e-52.2701e-61.6165e-73.9626e-832.078
CIRO GUHHZ2.3841e-52.6174e-66.3917e-72.0470e-71.1345e-73.9308e-52.3674e-62.0517e-74.6710e-833.540
CIRO GUHHN3.4656e-53.3226e-69.2209e-72.5246e-71.4973e-73.2717e-54.6991e-62.9607e-77.1441e-833.540
CIRO GUHHE4.3869e-54.7998e-69.3180e-72.5971e-71.4260e-73.0602e-54.2537e-62.8229e-77.1686e-833.540
AOSA ITHNZ2.8515e-52.4392e-61.3567e-67.7591e-72.7567e-73.3822e-57.2313e-63.0163e-75.7179e-840.97
AOSA ITHNN1.4980e-52.3881e-61.6877e-65.9748e-73.4925e-73.8778e-51.3749e-56.3049e-76.1491e-840.97
AOSA ITHNE1.4872e-52.6332e-61.7987e-68.2074e-74.0002e-75.2323e-51.0843e-55.8336e-76.2932e-840.97
FENE IVHHZ1.4499e-51.5131e-64.2584e-71.2457e-76.1584e-81.7773e-51.3898e-61.2812e-72.9902e-843.7206
FENE IVHHN8.4162e-69.2738e-74.2788e-71.3702e-76.3580e-81.1761e-51.9070e-61.0105e-71.7025e-843.7206
FENE IVHHE1.1268e-51.0526e-64.0543e-71.6393e-77.5095e-82.0943e-51.9542e-61.0006e-72.1926e-843.7206
MRGE IVHHZ5.7158e-54.5734e-61.3959e-74.7179e-82.9709e-87.3669e-65.4892e-76.3080e-81.5796e-847.8337
MRGE IVHHN6.3757e-55.3675e-62.7289e-79.3124e-85.3641e-81.5469e-51.2844e-61.5284e-74.0359e-847.8337
MRGE IVHHE3.8843e-52.8471e-61.8626e-76.3634e-83.6205e-81.0582e-56.7482e-79.7138e-82.9436e-847.8337
BLANCGUHHZ6.7339e-78.5587e-85.1246e-81.6832e-88.1868e-91.5847e-62.3379e-71.2546e-82.0956e-959.7331
BLANCGUHHN1.0422e-61.1234e-74.4090e-82.1223e-81.2150e-81.4068e-62.4476e-71.8120e-82.3850e-959.7331
BLANCGUHHE8.4934e-71.3416e-76.7969e-83.4728e-81.5099e-81.8684e-63.6001e-71.9325e-82.3371e-959.7331
MONC IVHHZ1.1128e-62.2332e-71.7495e-78.6774e-83.6198e-83.2836e-68.8684e-74.5266e-85.5220e-960.1124
MONC IVHHN2.7803e-62.6145e-72.0411e-71.5518e-79.0520e-82.9551e-61.0067e-61.1776e-78.0109e-960.1124
MONC IVHHE2.8254e-62.6438e-72.3099e-71.0503e-74.3226e-82.1812e-62.0261e-65.7541e-86.9877e-960.1124
BHB GUHHZ3.4461e-65.6424e-72.8024e-76.8722e-84.1413e-85.6202e-61.0853e-66.0173e-89.7238e-960.9183
BHB GUHHN3.5988e-67.4917e-74.0593e-79.7081e-85.1440e-89.5906e-61.6732e-68.9268e-81.8093e-860.9183
BHB GUHHE4.2412e-67.5134e-74.3692e-71.4781e-76.6108e-87.8530e-61.5156e-69.9889e-81.6599e-860.9183
RRL GUHHZ9.8988e-71.4207e-75.9987e-83.3451e-81.8941e-81.8994e-63.4279e-72.1274e-83.2654e-965.2218
RRL GUHHN1.0911e-61.8099e-71.2783e-74.5953e-82.5430e-83.4660e-66.0182e-73.4283e-84.2608e-965.2218
RRL GUHHE1.2382e-61.7857e-79.9925e-85.1472e-81.9971e-82.5412e-64.5845e-72.4060e-84.2055e-965.2218
SATI GUHHZ2.9743e-62.9942e-79.7709e-83.4752e-81.7178e-84.5292e-65.3099e-73.2149e-85.7456e-971.339
SATI GUHHN5.2977e-65.1165e-71.3800e-74.0326e-81.9464e-89.4066e-65.9369e-73.7904e-81.1530e-871.339
SATI GUHHE4.4105e-64.6044e-71.4789e-73.9048e-82.2763e-88.8289e-65.9985e-74.1972e-89.6879e-971.339
DIX CHHHZ6.4968e-66.7912e-73.4739e-78.7264e-84.2886e-89.1333e-61.6523e-67.6994e-81.4633e-878.86
DIX CHHHN7.9672e-69.6827e-73.1124e-78.8463e-85.1096e-81.6855e-51.2198e-69.9927e-82.1677e-878.86
DIX CHHHE1.0189e-59.0541e-74.2808e-71.0825e-76.5036e-81.4344e-52.0222e-61.0238e-72.0482e-878.86
PONC IVHHZ3.2945e-63.0040e-71.1944e-73.7878e-81.7919e-84.4624e-67.2976e-72.9286e-86.6744e-986.7195
PONC IVHHN2.1558e-63.6621e-72.1271e-75.8075e-82.8617e-86.8955e-61.2261e-64.3727e-87.4888e-986.7195
PONC IVHHE2.1708e-64.6448e-72.9335e-78.0200e-84.1889e-86.4159e-61.3071e-65.9498e-81.0177e-886.7195
MMK CHHHZ1.2718e-61.4104e-77.7391e-82.6973e-81.1134e-82.3169e-62.6747e-71.7400e-83.7288e-991.234
MMK CHHHN1.4770e-61.7062e-79.3894e-82.6914e-81.2715e-83.3431e-63.4237e-71.9666e-83.9078e-991.234
MMK CHHHE2.0394e-61.6281e-76.8706e-82.4156e-81.0692e-82.7463e-62.7232e-71.6079e-83.2930e-991.234
PZZ GUHHZ1.3979e-62.6805e-71.9016e-77.8573e-83.2005e-83.3020e-67.2936e-74.8101e-87.8893e-998.3189
PZZ GUHHN1.8457e-63.1671e-72.5607e-76.6442e-83.4173e-84.7505e-61.1197e-65.8080e-88.5173e-998.3189
PZZ GUHHE1.7911e-63.9588e-73.0992e-71.1314e-74.5549e-84.2358e-61.3631e-66.2875e-81.0638e-898.3189
SENINCHHHZ6.7215e-71.6295e-71.3099e-74.8374e-81.8898e-82.6415e-67.6044e-72.7594e-83.9003e-9109.7360
SENINCHHHN6.5187e-71.2329e-71.1278e-74.8743e-82.1789e-81.7921e-66.1881e-73.0208e-84.0358e-9109.7360
SENINCHHHE1.0018e-61.7283e-71.2650e-75.9790e-84.4313e-82.8078e-66.5024e-76.7221e-88.9800e-9109.7360
SIMPLCHHHZ1.1444e-61.3771e-74.9881e-81.7923e-89.8004e-91.6455e-62.4546e-71.7027e-82.8734e-9111.030
SIMPLCHHHN1.4986e-61.5313e-74.7819e-81.5828e-89.0148e-91.4773e-61.8543e-71.4977e-83.4621e-9111.030
SIMPLCHHHE8.5327e-78.1675e-84.3928e-81.5515e-88.8823e-91.8253e-61.9823e-71.1885e-82.1356e-9111.030
FIESACHHHZ4.7460e-78.3103e-85.3688e-83.5948e-82.5493e-81.8409e-62.9769e-72.8784e-82.0482e-9133.328
FIESACHHHN5.0664e-77.9241e-87.8841e-83.7062e-82.4642e-81.1184e-64.1982e-73.0619e-83.8527e-9133.328
FIESACHHHE4.9533e-78.2527e-86.2932e-83.1216e-82.0627e-81.5327e-63.0439e-73.0281e-82.5751e-9133.328
*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)

rsni