MANUAL Location - Area: Lunigiana , magnitude (ML): 2.4
2026-09-18 16:02:47 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2026-09-18 18:40:06

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Earthquake info - Manual location
Event - ID :260918160254
Magnitude (ML) :2.4 +/- 0.2
Origin Time :2026-09-18 16:02:47.811 (UTC)
Location : Latitude: 44.152 N, Longitude: 10.041 E
Area :Lunigiana
Depth (km) :9.71
Distances (km) : 2.4 --- Fosdinovo
5.9 --- Castelnuovo Magra
6.8 --- Ortonovo
7.7 --- Sarzana
9.0 --- Aulla
10.0 --- Santo Stefano di Magra
10.1 --- Podenzana
11.1 --- Arcola
11.3 --- Carrara
11.3 --- Ameglia
11.9 --- Fivizzano
12.1 --- Casola in Lunigiana
12.3 --- Bolano
12.5 --- Vezzano Ligure
12.7 --- Tresana
12.8 --- Licciana Nardi
13.2 --- Lerici
13.6 --- Minucciano
14.3 --- Follo
15.4 --- Massa

Quality location estimate: Erh: 0.8 km, Erz: 1.6 km, Nf: 47, Gap: 86 °, Rms: 0.34


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.
EQUIGU2026-09-18 16:02:50.6570.02000.031.692026-09-18 16:02:52.2270.0400-0.421.1613.6
FIVIGU2026-09-18 16:02:50.9280.0200-0.001.772026-09-18 16:02:52.5550.0400-0.591.0315.6
SARMGU2026-09-18 16:02:53.5420.0200-0.171.172026-09-18 16:02:57.4000.0892-0.700.8430.9
CARIT2026-09-18 16:02:54.4070.0200-0.031.712026-09-18 16:02:58.5260.0400-0.810.5936.6
CARDGU2026-09-18 16:02:54.9990.02000.220.632026-09-18 16:02:59.1050.1233-0.840.5739.2
GRAMGU2026-09-18 16:02:54.8730.02000.021.662026-09-18 16:02:59.5190.0400-0.181.3239.3
VRLIT2026-09-18 16:02:55.3240.0200-0.451.182026-09-18 16:03:01.9160.36070.230.8143.3
MAIMGU2026-09-18 16:02:56.0710.0281-0.001.652026-09-18 16:03:01.5800.1414-0.650.9245.9
BDIIV2026-09-18 16:02:56.1080.0281-0.051.642026-09-18 16:03:02.0300.1394-0.301.2746.7
MSSAIV2026-09-18 16:02:55.6630.0200-0.630.962026-09-18 16:03:00.9900.4599-1.740.0946.7
GSCLGU2026-09-18 16:02:57.0080.0241-0.441.182026-09-18 16:03:03.2300.1424-1.250.1650.0
NEVIIV2026-09-18 16:02:58.0470.02000.131.132026-09-18 16:03:06.9990.04001.510.0653.7
POPMGU2026-09-18 16:02:58.2110.0301-0.001.572026-09-18 16:03:05.9350.2677-0.041.1559.3
PIIIV2026-09-18 16:02:58.9210.0321-0.021.562026-09-18 16:03:06.3650.2496-0.860.6262.3
ZCCAIV2026-09-18 16:03:03.3600.04320.650.152026-09-18 16:03:14.5940.04001.010.1178.4
GORRGU2026-09-18 16:03:01.0580.0432-0.431.172026-09-18 16:03:11.7430.0400-0.311.2578.7
TGLIT2026-09-18 16:03:01.9520.0200-0.291.222026-09-18 16:03:12.5550.0400-0.531.0682.2
FNVDIV2026-09-18 16:03:02.9980.0200-0.551.092026-09-18 16:03:14.4090.0400-0.670.8787.0
GNVIT2026-09-18 16:03:03.9700.02000.210.862026-09-18 16:03:16.2590.04001.400.0894.1
RNCAGU2026-09-18 16:03:03.8210.0512-0.021.402026-09-18 16:03:14.7500.2837-0.251.1294.2
RNSIT2026-09-18 16:03:05.1520.0200-0.091.402026-09-18 16:03:18.0150.04000.610.30101.2
CSNTIV2026-09-18 16:03:09.5600.0643-0.241.302026-09-18 16:03:23.6010.0400-2.340.00125.8
PCPGU2026-09-18 16:03:08.3400.0633-0.351.232026-09-18 16:03:22.8030.0400-0.271.17126.9
MORSIFR2026-09-18 16:03:11.1800.07430.230.822026-09-18 16:03:26.5270.0400-1.180.32144.3


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.		 Dist. (km) Azimuth
EQUI GUHH2.531.78e+113.680
FIVI GUHN2.742.26e+115.635
SARM GUEH2.131.92e+030.983
CAR ITHN2.341.86e+036.6288
CARD GUHH2.633.17e+039.2111
GRAM GUHH2.504.32e+039.33
MAIM GUHH2.391.19e+045.9126
BDI IVHH2.221.09e+046.7102
MSSA IVHH2.086.27e-146.7294
GSCL GUHH2.742.51e+050.063
NEVI IVHN2.257.07e-153.724
POPM GUHH2.381.58e+059.3101
PII IVHH2.448.03e-162.3141
ZCCA IVHH2.232.97e-178.473
GORR GUHH2.384.13e-178.7311
TGL ITHN2.646.93e-182.2302
GNV ITHG2.675.44e-194.1290
RNCA GUHH2.533.91e-194.2293
RNS ITHN2.382.33e-1101.2300
PCP GUHH2.209.65e-2126.9291
MORSIFRHH1.812.56e-2144.3203


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.
(°)
EQUI GUHHZ1.7279e-32.1947e-48.3347e-52.5038e-51.5870e-53.9121e-33.6579e-42.8704e-55.8983e-613.680
EQUI GUHHN2.2415e-32.9008e-41.1792e-45.1026e-52.4432e-54.2027e-36.2609e-43.7671e-56.7608e-613.680
EQUI GUHHE2.5672e-33.1666e-48.5975e-52.5815e-51.3117e-54.1878e-34.4451e-42.5151e-56.8781e-613.680
FIVI GUHNZ4.0023e-33.6409e-41.5729e-42.9155e-51.8747e-57.3586e-35.5447e-43.2306e-56.8951e-615.635
FIVI GUHNN1.9651e-32.9606e-41.5735e-44.6957e-52.8094e-54.1260e-39.2546e-44.2395e-57.9679e-615.635
FIVI GUHNE3.8942e-35.6862e-41.7857e-45.1982e-53.0291e-51.2784e-26.7792e-44.8598e-51.1474e-515.635
SARM GUEHZ1.7188e-42.0986e-51.2137e-55.3318e-62.1940e-64.1577e-45.7446e-53.1237e-64.7837e-730.983
SARM GUEHN2.3164e-43.4845e-51.7231e-56.3379e-63.5524e-66.0592e-49.5234e-54.5990e-67.0311e-730.983
SARM GUEHE1.6016e-42.5361e-51.3898e-55.5774e-62.3672e-63.3778e-47.6684e-53.7463e-65.9565e-730.983
CAR ITHNZ1.0008e-41.5343e-59.8236e-64.8446e-62.5508e-62.8094e-45.7504e-53.1335e-64.5346e-736.6288
CAR ITHNN2.2159e-42.8089e-51.7726e-56.1057e-63.3710e-65.6501e-45.9408e-55.0459e-67.0267e-736.6288
CAR ITHNE1.5186e-42.0329e-51.2991e-53.8942e-61.7073e-62.9725e-45.4572e-52.7071e-64.8963e-736.6288
CARD GUHHZ2.3134e-42.6813e-58.9999e-63.2827e-61.6629e-63.9052e-45.1138e-52.6394e-65.6248e-739.2111
CARD GUHHN4.5289e-47.4867e-52.4614e-56.3732e-64.1196e-61.0582e-37.6591e-57.2166e-61.4469e-639.2111
CARD GUHHE4.7475e-46.3690e-52.4720e-57.3087e-64.0593e-67.3452e-41.0335e-47.4016e-61.3482e-639.2111
GRAM GUHHZ1.2814e-41.6983e-51.2996e-54.6065e-63.1177e-61.9506e-46.8204e-53.7089e-63.9082e-739.33
GRAM GUHHN2.3902e-45.8857e-53.4358e-51.0959e-55.3122e-66.0140e-41.0728e-48.8229e-61.4293e-639.33
GRAM GUHHE1.5611e-44.4084e-53.0056e-51.0620e-55.5488e-64.0769e-41.5530e-46.5842e-61.1602e-639.33
VRL ITHNZ5.9788e-51.1086e-54.5041e-61.3748e-67.9937e-71.0513e-41.5211e-51.3562e-62.0917e-743.3310
VRL ITHNN1.0066e-41.3669e-57.3540e-61.8990e-68.5323e-72.0712e-43.3025e-51.4763e-62.9225e-743.3310
VRL ITHNE8.8227e-51.5195e-59.0737e-62.2314e-61.3114e-63.5254e-43.2730e-52.1277e-63.6761e-743.3310
MAIM GUHHZ6.1773e-59.9145e-64.3995e-61.7667e-69.2012e-71.1477e-42.6263e-51.2330e-62.2081e-745.9126
MAIM GUHHN1.1663e-41.8909e-51.1077e-53.4377e-62.0379e-63.7723e-44.7202e-52.9134e-64.5168e-745.9126
MAIM GUHHE8.1158e-51.6487e-57.6056e-63.0599e-61.4782e-61.4643e-43.6750e-51.7550e-63.1396e-745.9126
BDI IVHHZ1.0991e-41.4134e-55.4857e-61.9265e-61.0363e-62.0977e-42.9787e-51.6786e-62.9221e-746.7102
BDI IVHHN1.3859e-42.1049e-58.4903e-62.7909e-61.6644e-64.3642e-43.2521e-52.3320e-64.3441e-746.7102
BDI IVHHE1.1665e-41.9130e-59.9278e-63.0334e-61.7556e-62.7450e-44.2769e-52.4132e-64.1815e-746.7102
MSSA IVHHZ6.8053e-51.0212e-53.5577e-61.1931e-66.4549e-71.3892e-41.2099e-58.7127e-71.6820e-746.7294
MSSA IVHHN5.1322e-59.1789e-64.9741e-61.6592e-68.1749e-71.3329e-41.9167e-51.2588e-62.2407e-746.7294
MSSA IVHHE3.8928e-57.2864e-65.0277e-61.7643e-68.5564e-78.9953e-52.9836e-51.3781e-62.2475e-746.7294
GSCL GUHHZ2.7330e-57.0492e-65.7713e-62.3971e-61.1307e-65.6844e-53.6304e-51.6349e-61.8216e-750.063
GSCL GUHHN8.0000e-52.4435e-51.9526e-56.5288e-63.3516e-61.3346e-41.3687e-44.9623e-67.4917e-750.063
GSCL GUHHE6.5077e-51.6988e-51.4867e-54.1304e-62.3074e-61.0864e-41.0869e-43.4311e-64.8576e-750.063
NEVI IVHNZ1.5498e-52.6138e-62.5248e-61.6993e-66.9093e-72.5277e-51.3685e-58.0474e-78.8011e-853.724
NEVI IVHNN1.3613e-53.8899e-63.9791e-62.2782e-69.2068e-74.1583e-52.2043e-51.1302e-61.1895e-753.724
NEVI IVHNE1.7857e-56.3920e-66.6714e-63.3434e-61.2503e-64.4316e-53.6757e-51.7073e-61.9808e-753.724
POPM GUHHZ1.1429e-41.6786e-57.2394e-62.0862e-69.2421e-72.6111e-42.3072e-51.6387e-63.7451e-759.3101
POPM GUHHN1.5216e-43.1813e-51.6687e-53.5739e-62.0416e-63.3224e-44.3821e-53.1222e-66.8416e-759.3101
POPM GUHHE1.0436e-42.0140e-51.2880e-53.0238e-61.3944e-62.8760e-46.2662e-52.0989e-64.1832e-759.3101
PII IVHHZ7.5754e-59.6966e-66.5245e-62.2584e-69.9115e-71.2334e-43.1330e-51.3611e-62.4607e-762.3141
PII IVHHN6.5592e-51.0064e-55.9137e-61.8396e-69.0421e-71.7132e-42.3574e-51.2902e-61.8732e-762.3141
PII IVHHE7.7276e-51.0838e-57.5390e-62.5601e-69.8840e-71.5773e-43.1366e-51.5465e-62.4102e-762.3141
ZCCA IVHHZ3.0609e-61.1236e-61.0615e-66.7694e-73.6329e-71.1240e-51.0778e-54.0155e-73.5534e-878.473
ZCCA IVHHN4.4685e-61.3728e-61.5641e-69.8081e-73.3872e-71.0673e-59.3986e-64.5038e-74.7231e-878.473
ZCCA IVHHE5.5389e-62.3118e-62.3024e-61.1589e-65.2224e-79.1878e-61.8052e-56.8156e-77.8255e-878.473
GORR GUHHZ1.6926e-53.5993e-62.5630e-69.7143e-75.4468e-75.7288e-59.9482e-66.9912e-79.7241e-878.7311
GORR GUHHN2.1660e-54.6335e-63.7377e-61.1216e-64.6608e-76.4874e-52.0399e-56.4538e-79.7725e-878.7311
GORR GUHHE2.1995e-54.7076e-63.6496e-61.8894e-68.1685e-79.0813e-51.9758e-51.1066e-61.4817e-778.7311
TGL ITHNZ2.7996e-53.3384e-62.4173e-68.9714e-73.2820e-75.5110e-59.5375e-64.1302e-78.8286e-882.2302
TGL ITHNN2.4629e-54.5690e-63.7968e-62.3611e-61.7949e-68.1437e-51.5074e-52.3104e-61.6484e-782.2302
TGL ITHNE1.4763e-54.6961e-63.2449e-63.4284e-62.4897e-63.2748e-51.6816e-52.9156e-62.0843e-782.2302
FNVD IVHHZ1.7742e-64.6792e-74.6566e-72.2277e-71.0392e-74.6782e-63.7396e-61.2347e-71.3677e-887.088
FNVD IVHHN4.8420e-69.1288e-76.7964e-73.4330e-71.4213e-71.7146e-53.3242e-61.8554e-72.3488e-887.088
FNVD IVHHE3.9771e-68.8135e-77.1004e-73.0247e-71.3484e-71.1763e-54.5490e-61.6790e-72.5566e-887.088
GNV ITHGZ1.8541e-53.4540e-62.5673e-61.3951e-65.7113e-76.1462e-51.2029e-57.0213e-78.6628e-894.1290
GNV ITHGN2.3186e-56.2274e-64.7643e-62.6813e-68.9699e-79.1201e-51.7096e-51.2183e-61.6905e-794.1290
GNV ITHGE2.8900e-55.7666e-64.9625e-62.3866e-68.6095e-71.0648e-42.1082e-51.1693e-61.4133e-794.1290
RNCA GUHHZ2.9454e-55.6781e-62.7775e-67.3837e-73.6010e-78.0467e-51.3766e-56.0705e-71.3262e-794.2293
RNCA GUHHN1.6904e-53.6647e-63.1985e-61.2838e-65.0899e-76.6752e-51.3509e-57.4207e-71.0386e-794.2293
RNCA GUHHE3.7580e-56.8784e-64.5919e-61.3167e-66.1178e-71.1379e-41.7217e-59.7486e-71.5922e-794.2293
RNS ITHNZ1.3091e-52.1952e-62.0896e-69.3475e-73.7458e-74.2182e-58.8689e-65.4042e-76.0347e-8101.2300
RNS ITHNN1.4739e-53.2969e-62.3678e-66.9407e-72.8693e-75.0255e-51.1191e-53.9329e-77.6452e-8101.2300
RNS ITHNE1.4438e-53.5708e-62.2175e-66.8715e-73.1912e-74.0874e-59.9782e-65.1046e-77.7692e-8101.2300
PCP GUHHZ4.8142e-67.6143e-76.0287e-72.3358e-79.7244e-81.5054e-52.7399e-61.3886e-71.9316e-8126.9291
PCP GUHHN4.5426e-61.0584e-68.4059e-74.8193e-72.5212e-71.6975e-54.0043e-62.8658e-73.3058e-8126.9291
PCP GUHHE5.2779e-69.1683e-77.8598e-73.3240e-71.1706e-72.1333e-53.6908e-61.6238e-72.7667e-8126.9291
MORSIFRHHZ1.7627e-63.8778e-72.7436e-71.0627e-76.0254e-85.7313e-61.8645e-67.8665e-89.0672e-9144.3203
MORSIFRHHN2.0116e-64.8096e-73.3385e-71.5185e-76.8721e-85.5254e-61.6056e-69.6602e-81.1590e-8144.3203
MORSIFRHHE1.7105e-62.9545e-72.1701e-78.1844e-84.2427e-85.4018e-61.2687e-65.3945e-87.9064e-9144.3203
*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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