MANUAL Location - Area: Appennino ligure , magnitude (ML): 1.6
2026-04-22 04:46:49 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2026-04-22 09:14:25

RSNI Logo


Earthquake info - Manual location
Event - ID :260422044622
Magnitude (ML) :1.6 +/- 0.2
Origin Time :2026-04-22 04:46:49.294 (UTC)
Location : Latitude: 44.578 N, Longitude: 8.659 E
Area :Appennino ligure
Depth (km) :8.59
Distances (km) : 1.7 --- Rossiglione
5.1 --- Tiglieto
5.2 --- Belforte Monferrato
5.5 --- Campo Ligure
6.6 --- Molare
6.8 --- Ovada
7.0 --- Tagliolo Monferrato
7.7 --- Lerma
8.2 --- Cassinelle
8.5 --- Casaleggio Boiro
8.8 --- Cremolino
9.3 --- Masone
10.1 --- Mornese
10.6 --- Rocca Grimalda
10.9 --- Prasco
11.0 --- Trisobbio
11.5 --- Montaldeo
11.6 --- Urbe
12.0 --- Carpeneto
12.1 --- Silvano d Orba

Quality location estimate: Erh: 0.4 km, Erz: 0.5 km, Nf: 84, Gap: 56 °, Rms: 0.22


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.
PCPGU2026-04-22 04:46:52.1200.01100.121.382026-04-22 04:46:53.8600.0380-0.011.9813.6
ACQIT2026-04-22 04:46:53.2690.0200-0.051.892026-04-22 04:46:56.0660.04000.041.8421.3
RNSIT2026-04-22 04:46:53.3740.0200-0.670.282026-04-22 04:46:56.4910.0400-0.950.1023.8
RNCAGU2026-04-22 04:46:54.5700.01400.220.862026-04-22 04:46:58.4560.29570.490.7527.5
GNVIT2026-04-22 04:46:54.7410.02000.022.002026-04-22 04:46:59.1020.04000.500.6428.6
SVAIT2026-04-22 04:46:55.4880.0200-0.600.352026-04-22 04:47:00.7250.0400-0.290.8135.1
QLNOIV2026-04-22 04:46:56.7600.0200-0.001.902026-04-22 04:47:01.8800.1153-0.270.9538.7
SARZIV2026-04-22 04:46:56.7950.02000.031.872026-04-22 04:47:02.9690.04000.760.4238.9
ROTMGU2026-04-22 04:46:57.1900.0241-0.031.842026-04-22 04:47:02.7090.11730.031.4539.6
TGLIT2026-04-22 04:46:56.7580.0200-0.191.052026-04-22 04:47:02.9410.04000.520.6441.6
GORRGU2026-04-22 04:46:58.4800.02510.011.802026-04-22 04:47:05.7630.21160.530.6851.1
CMAGIV2026-04-22 04:47:01.1800.02000.211.102026-04-22 04:47:09.2440.04000.021.3862.5
ROROGU2026-04-22 04:47:01.8400.03610.350.792026-04-22 04:47:10.1200.2116-0.171.0670.6
MSSAIV2026-04-22 04:47:02.1530.03810.051.582026-04-22 04:47:11.7720.04000.500.6974.7
GBOSGU2026-04-22 04:47:02.9110.10040.530.642026-04-22 04:47:11.8100.22560.261.0175.6
IMIGU2026-04-22 04:47:06.4540.02000.690.492026-04-22 04:47:18.3130.04000.410.8496.5
MLIGIV2026-04-22 04:47:07.9020.02000.880.332026-04-22 04:47:20.0310.04000.141.12101.9
ENRGU2026-04-22 04:47:08.4100.05420.660.532026-04-22 04:47:20.5540.3227-0.100.93106.3
SAOFFR2026-04-22 04:47:09.7660.02001.460.042026-04-22 04:47:22.2460.04000.360.90110.1
PLMAIV2026-04-22 04:47:08.9300.05621.000.232026-04-22 04:47:22.4030.04001.470.07112.0
STVGU2026-04-22 04:47:09.3600.05720.650.542026-04-22 04:47:22.3590.38880.060.89112.5
BHBGU2026-04-22 04:47:09.1600.05720.310.952026-04-22 04:47:22.7100.3417-0.020.92114.2
TURFFR2026-04-22 04:47:11.4380.02000.990.242026-04-22 04:47:25.8750.04000.460.79121.4
VINDIV2026-04-22 04:47:10.5510.02000.370.872026-04-22 04:47:24.7190.0400-0.230.93121.7
PZZGU2026-04-22 04:47:10.6200.06230.420.802026-04-22 04:47:25.0640.0400-0.061.05122.9
EQUIGU2026-04-22 04:47:11.4500.06430.730.472026-04-22 04:47:25.0920.3607-0.570.58127.6
PONCIV2026-04-22 04:47:11.2220.10040.131.232026-04-22 04:47:26.1570.2005-0.460.67129.9
ISOFR2026-04-22 04:47:13.5600.06831.170.002026-04-22 04:47:28.7720.20050.020.96135.4
MVIFFR2026-04-22 04:47:15.1100.07631.210.002026-04-22 04:47:31.6310.04000.170.96142.1
CIROGU2026-04-22 04:47:13.1800.0713-0.161.142026-04-22 04:47:29.7530.2005-1.080.21142.8
SURFFR2026-04-22 04:47:14.1800.07430.221.092026-04-22 04:47:31.5540.2005-0.550.59146.9
RRLGU2026-04-22 04:47:15.0300.0763-0.011.222026-04-22 04:47:33.0030.2005-0.460.67152.7
LSDGU2026-04-22 04:47:14.9600.07730.051.222026-04-22 04:47:32.4920.2005-1.200.17155.1
SATIGU2026-04-22 04:47:15.9100.07830.001.212026-04-22 04:47:34.6310.2005-1.200.18157.3


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.		 Dist. (km) Azimuth
RNS ITHN1.112.46e-123.885
RNCA GUHH1.272.74e-127.5117
SVA ITHG1.422.44e-135.1208
QLNO IVHH1.552.68e-138.7221
SARZ IVHH1.845.19e-138.932
ROTM GUHH1.498.58e-139.6321
TGL ITHN1.341.44e-141.697
CMAG IVHH1.862.07e-162.5266
RORO GUHH1.781.34e-170.6222
MSSA IVHH1.122.57e-274.7113
IMI GUHH1.565.30e-296.5220
SAOF FRHH1.482.40e-2110.1234
PLMA IVHH1.633.19e-2112.0121
STV GUHH1.893.94e-2112.5251
BHB GUHH1.945.71e-2114.2285
TURF FRHH1.331.33e-2121.4237
PZZ GUHH1.969.30e-2122.9267
EQUI GUHH1.481.65e-2127.6111
PONC IVHH1.632.21e-2129.9273
ISO FRHH1.541.61e-2135.4252
CIRO GUHH1.588.30e-3142.8323
RRL GUHH1.651.03e-2152.7285
LSD GUHH1.326.73e-3155.1310


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.
(°)
PCP GUHHZ9.2027e-51.3485e-54.9699e-61.8926e-61.1166e-62.3172e-42.0645e-51.8670e-62.9018e-713.6245
PCP GUHHN1.5961e-41.9580e-57.0217e-62.5418e-61.7274e-62.9871e-43.4848e-52.8369e-64.4552e-713.6245
PCP GUHHE1.5459e-42.0031e-57.6208e-62.3755e-61.4370e-63.0206e-42.7831e-52.6584e-64.5045e-713.6245
ACQ ITHNZ1.1163e-41.5575e-51.0818e-52.5853e-61.2031e-62.9368e-45.5663e-52.0658e-63.6835e-721.3307
ACQ ITHNN6.1660e-41.6342e-48.5100e-52.2626e-51.2969e-51.4397e-33.2642e-42.0526e-53.7375e-621.3307
ACQ ITHNE7.6643e-41.6953e-49.0586e-52.0034e-51.1763e-51.8312e-32.8137e-41.9210e-53.8213e-621.3307
RNS ITHNZ3.7214e-53.5734e-61.6366e-65.5200e-72.9612e-76.5187e-55.7917e-64.3303e-78.6809e-823.885
RNS ITHNN2.8344e-53.3303e-62.1949e-66.5937e-73.3324e-75.1625e-58.1355e-65.0639e-77.4188e-823.885
RNS ITHNE2.6516e-53.5138e-62.5953e-68.8231e-74.0212e-75.8844e-51.1537e-55.9482e-78.9455e-823.885
RNCA GUHHZ2.1238e-52.8895e-61.3698e-65.7014e-72.6160e-76.6413e-55.8787e-63.5608e-76.0514e-827.5117
RNCA GUHHN2.6291e-54.3597e-62.3640e-66.7461e-73.4946e-76.1027e-51.0002e-56.0286e-71.1393e-727.5117
RNCA GUHHE2.5471e-53.9193e-62.3832e-66.8593e-73.5981e-77.5403e-51.1986e-55.8335e-79.8691e-827.5117
GNV ITHGZ1.1441e-51.8100e-61.2755e-64.6880e-72.4068e-72.3128e-55.9616e-62.8766e-74.9633e-828.6127
GNV ITHGN1.2267e-52.1251e-61.8264e-67.5242e-73.4624e-73.9098e-57.7455e-64.7320e-75.7950e-828.6127
GNV ITHGE1.7320e-53.2136e-62.3104e-67.8065e-73.1618e-76.8802e-59.5010e-65.0556e-78.2807e-828.6127
SVA ITHGZ1.5336e-52.2790e-61.3532e-61.0390e-64.7127e-73.9468e-54.4963e-66.1367e-76.3547e-835.1208
SVA ITHGN1.7655e-53.4660e-61.8491e-67.2478e-73.5815e-77.2269e-56.0639e-64.6554e-78.3466e-835.1208
SVA ITHGE2.1831e-53.0030e-62.1108e-68.9227e-74.2635e-76.2309e-59.9512e-65.8191e-79.0519e-835.1208
QLNO IVHHZ9.8614e-62.3655e-61.6265e-65.1550e-72.4189e-73.0421e-59.5151e-63.4860e-75.2477e-838.7221
QLNO IVHHN2.3079e-53.1221e-61.7655e-64.8883e-72.9642e-73.9296e-56.4945e-64.4564e-77.7759e-838.7221
QLNO IVHHE2.4330e-55.4551e-62.2345e-66.4371e-73.2818e-75.3034e-56.1469e-65.3758e-71.1654e-738.7221
SARZ IVHHZ1.0744e-52.4892e-62.4494e-69.7808e-74.2146e-74.4737e-51.9493e-55.3350e-76.6543e-838.932
SARZ IVHHN1.5737e-53.7626e-64.2745e-62.6010e-69.5595e-75.3960e-52.1932e-51.2686e-61.2581e-738.932
SARZ IVHHE1.1352e-54.0238e-63.9980e-61.7184e-66.1342e-73.1205e-52.1338e-58.3195e-71.2116e-738.932
ROTM GUHHZ2.9476e-53.9355e-63.3303e-61.2067e-64.7450e-75.1589e-51.9236e-55.6589e-79.8683e-839.6321
ROTM GUHHN6.6471e-51.2812e-59.5927e-63.2319e-61.2209e-63.1889e-43.0031e-51.7402e-62.9249e-739.6321
ROTM GUHHE5.4146e-58.4439e-66.4809e-62.9382e-61.1453e-69.7256e-53.2956e-51.5116e-61.8091e-739.6321
TGL ITHNZ8.9895e-61.2304e-61.0046e-64.3681e-72.0178e-71.5590e-56.6890e-62.3763e-73.0344e-841.697
TGL ITHNN8.9063e-61.8564e-61.3540e-63.8558e-71.8560e-71.8040e-56.5370e-62.7886e-74.6747e-841.697
TGL ITHNE9.5492e-61.8723e-61.3970e-64.5295e-72.2336e-72.0905e-56.2105e-63.1161e-74.3332e-841.697
GORR GUHHZ3.3543e-65.5471e-75.0483e-72.3195e-79.3950e-89.0147e-62.7904e-69.8119e-81.4603e-851.186
GORR GUHHN3.3662e-68.1413e-77.0443e-73.3440e-71.2093e-71.1832e-52.9202e-61.4469e-72.1849e-851.186
GORR GUHHE5.3948e-61.0225e-68.3989e-72.7423e-71.4613e-71.8706e-53.6175e-61.7628e-72.4743e-851.186
CMAG IVHHZ1.6409e-52.4923e-61.1319e-63.9222e-71.6801e-76.5011e-54.1564e-62.6905e-76.0604e-862.5266
CMAG IVHHN1.9590e-53.7345e-62.0081e-66.4275e-73.0326e-79.9249e-58.6262e-64.3473e-77.4605e-862.5266
CMAG IVHHE1.7410e-53.0813e-62.0492e-67.5166e-74.0032e-73.7881e-58.5489e-67.1071e-77.5522e-862.5266
RORO GUHHZ7.7793e-61.1055e-67.8583e-72.9702e-71.1779e-72.4223e-52.6642e-61.7226e-72.8731e-870.6222
RORO GUHHN1.2846e-52.3181e-61.2632e-62.8863e-71.6181e-75.1710e-55.0086e-62.5860e-75.5712e-870.6222
RORO GUHHE1.1561e-52.4969e-61.1685e-63.0497e-71.8434e-74.3086e-53.8751e-62.9245e-75.8256e-870.6222
MSSA IVHHZ2.1089e-63.4712e-71.9805e-71.1268e-76.9534e-86.8502e-61.1769e-67.5458e-89.1387e-974.7113
MSSA IVHHN1.5006e-62.9260e-72.8779e-71.0162e-75.0847e-83.8236e-61.5415e-66.7361e-88.1313e-974.7113
MSSA IVHHE1.6458e-63.3672e-72.2733e-79.3992e-84.4978e-84.2640e-61.1865e-65.6098e-87.1781e-974.7113
GBOS GUHHZ1.3093e-53.0917e-61.6300e-65.5529e-72.9949e-75.4252e-57.4237e-64.6635e-78.1057e-875.6240
GBOS GUHHN1.1505e-51.9656e-61.3576e-64.9698e-72.1230e-74.3302e-57.0447e-62.9373e-74.8892e-875.6240
GBOS GUHHE9.5138e-61.8798e-61.1296e-63.3740e-71.5922e-73.6725e-55.4834e-62.5456e-74.6975e-875.6240
IMI GUHHZ1.4059e-62.9193e-73.0484e-72.3566e-71.0515e-74.6410e-62.2718e-61.2152e-71.0419e-896.5220
IMI GUHHN2.7138e-65.0896e-74.6913e-72.7308e-71.0653e-77.1873e-62.6713e-61.4027e-71.5216e-896.5220
IMI GUHHE2.1727e-64.4942e-74.1387e-72.2737e-71.0102e-76.5509e-62.6053e-61.1498e-71.3620e-896.5220
ENR GUHHZ1.1223e-51.9930e-61.2399e-62.8349e-71.4234e-74.0781e-54.5344e-62.2390e-74.4163e-8106.3249
ENR GUHHN4.8336e-55.5638e-62.3670e-64.8190e-72.9722e-78.3361e-59.8035e-65.8453e-71.2758e-7106.3249
ENR GUHHE3.9935e-54.3144e-61.5936e-63.6729e-72.0114e-76.6579e-54.6280e-63.4329e-77.6617e-8106.3249
SAOF FRHHZ5.4007e-71.7510e-71.7033e-77.6487e-83.6442e-81.5079e-61.2266e-64.7688e-84.8013e-9110.1234
SAOF FRHHN9.6361e-72.1966e-71.9780e-71.2213e-75.5233e-81.8472e-61.4894e-67.3760e-87.3356e-9110.1234
SAOF FRHHE7.8038e-71.9437e-71.8721e-71.2270e-76.9575e-82.1678e-61.4578e-61.0971e-76.5276e-9110.1234
PLMA IVHHZ8.0025e-71.9596e-71.7521e-71.2003e-75.3166e-82.0578e-69.1486e-77.3599e-86.4863e-9112.0121
PLMA IVHHN1.4055e-63.5117e-72.5880e-71.2560e-78.9108e-84.2442e-61.5318e-61.0910e-78.0027e-9112.0121
PLMA IVHHE1.3134e-62.8830e-71.8442e-71.0974e-76.1895e-83.7563e-69.3345e-78.7159e-88.3586e-9112.0121
STV GUHHZ3.0176e-65.2620e-73.1200e-71.3463e-75.0032e-88.4822e-61.1276e-66.5353e-81.2084e-8112.5251
STV GUHHN3.1555e-65.4900e-74.2556e-71.3111e-75.4073e-89.7958e-62.1316e-69.3374e-81.5280e-8112.5251
STV GUHHE3.6730e-65.7736e-74.0620e-71.5493e-75.9146e-81.0828e-51.4007e-68.5436e-81.2093e-8112.5251
BHB GUHHZ6.7928e-68.4516e-74.1705e-71.2615e-76.1253e-81.8519e-51.4029e-69.9919e-82.0732e-8114.2285
BHB GUHHN3.8133e-67.0360e-74.7780e-71.3316e-76.7731e-81.7949e-51.6362e-61.0471e-71.7819e-8114.2285
BHB GUHHE5.9716e-61.0303e-64.8157e-71.7911e-78.2064e-81.9321e-51.5337e-61.4732e-72.5413e-8114.2285
TURF FRHHZ3.8918e-78.5236e-87.4412e-83.7381e-81.7085e-81.3045e-63.3671e-72.1816e-82.7884e-9121.4237
TURF FRHHN7.0614e-71.7617e-71.2048e-74.2761e-82.2969e-83.7698e-66.8094e-73.5252e-84.1933e-9121.4237
TURF FRHHE7.1114e-71.9293e-71.3021e-75.1506e-81.9834e-82.2848e-66.7009e-72.7340e-84.2974e-9121.4237
PZZ GUHHZ4.5443e-61.0327e-68.2128e-72.0728e-71.0792e-71.0439e-54.8594e-61.3895e-72.6253e-8122.9267
PZZ GUHHN3.3459e-67.5874e-76.5088e-72.2869e-79.7996e-81.1230e-53.9099e-61.2825e-71.7209e-8122.9267
PZZ GUHHE5.0676e-61.1169e-68.3946e-72.7663e-71.1266e-71.5105e-55.8054e-61.7268e-73.0017e-8122.9267
EQUI GUHHZ9.1400e-71.3141e-77.8163e-84.3164e-83.0113e-82.0984e-64.3008e-73.3441e-83.6394e-9127.6111
EQUI GUHHN7.4085e-71.8527e-71.4490e-75.9395e-83.6405e-81.8567e-69.8178e-73.5418e-84.3404e-9127.6111
EQUI GUHHE5.0325e-71.2446e-79.9797e-89.4667e-86.3686e-81.2845e-66.8920e-78.2367e-84.6042e-9127.6111
PONC IVHHZ1.7919e-62.4708e-71.2667e-76.3304e-82.5954e-84.7219e-65.2771e-73.8898e-85.4722e-9129.9273
PONC IVHHN1.2473e-62.3569e-72.0271e-76.7455e-83.6236e-84.5823e-61.4088e-64.6981e-86.5469e-9129.9273
PONC IVHHE9.2843e-72.3855e-71.5616e-76.8528e-83.1645e-83.2601e-68.3413e-74.3726e-85.4237e-9129.9273
ISO FRHHZ9.0648e-71.6210e-71.5191e-78.1565e-82.8317e-82.6266e-67.8173e-73.4540e-84.6750e-9135.4252
ISO FRHHN8.1897e-72.0695e-71.5270e-78.4014e-83.1844e-83.0297e-68.6439e-73.8397e-85.2267e-9135.4252
ISO FRHHE7.4706e-71.2182e-71.1288e-74.5607e-82.2593e-82.3909e-65.0725e-73.2426e-84.1583e-9135.4252
CIRO GUHHZ5.9955e-71.0027e-76.1968e-82.1070e-89.0599e-91.5611e-63.2194e-71.4251e-82.0628e-9142.8323
CIRO GUHHN4.8326e-78.3633e-85.5957e-82.3756e-81.0813e-81.1513e-62.3492e-71.3928e-82.4089e-9142.8323
CIRO GUHHE7.7055e-71.1794e-77.3899e-82.3251e-81.0506e-81.8721e-63.5891e-71.4750e-82.3916e-9142.8323
RRL GUHHZ3.8023e-76.3333e-84.2073e-81.8637e-88.9803e-99.5378e-72.3544e-71.4216e-81.5502e-9152.7285
RRL GUHHN2.5406e-75.7185e-84.4504e-82.3620e-88.8596e-97.1774e-72.0233e-71.1350e-81.4733e-9152.7285
RRL GUHHE2.8332e-76.9236e-85.1744e-82.1124e-89.7508e-96.8167e-72.9439e-71.3476e-82.0557e-9152.7285
LSD GUHHZ3.5787e-74.6724e-83.5636e-81.5097e-87.1485e-98.7979e-71.6384e-78.7802e-91.2723e-9155.1310
LSD GUHHN2.4627e-74.0028e-83.2711e-81.1300e-85.4980e-96.7688e-71.6155e-77.4245e-91.0420e-9155.1310
LSD GUHHE2.2723e-75.9453e-84.6035e-81.6033e-88.0728e-97.3721e-72.0681e-71.1717e-81.6781e-9155.1310
SATI GUHHZ4.9277e-78.4870e-84.8062e-82.1141e-81.0339e-89.1382e-72.8497e-71.4812e-82.1201e-9157.3337
SATI GUHHN6.3664e-77.2257e-84.1207e-81.7754e-81.0526e-81.7594e-61.6980e-71.3656e-81.5965e-9157.3337
SATI GUHHE4.4217e-76.0802e-83.9220e-81.9930e-89.2118e-91.3451e-61.7337e-71.2570e-81.9426e-9157.3337
*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
 
Disclaimer & Privacy

IT Italiano
UniGE-Distav
Search
HTML5 Powered