MANUAL Location - Area: Costa toscana settentrionale , magnitude (ML): 1.4
2026-09-28 05:30:20 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2026-09-28 10:27:19

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Earthquake info - Manual location
Event - ID :260928053000
Magnitude (ML) :1.4 +/- 0.2
Origin Time :2026-09-28 05:30:20.916 (UTC)
Location : Latitude: 43.655 N, Longitude: 10.208 E
Area :Costa toscana settentrionale
Depth (km) :10.86
Distances (km) : 14.7 --- Livorno
17.0 --- Pisa
20.3 --- Vecchiano
22.4 --- San Giuliano Terme
22.9 --- Collesalvetti
24.2 --- Viareggio
26.1 --- Calci
26.4 --- Fauglia
26.6 --- Massarosa
27.6 --- Cascina
29.4 --- Lorenzana
30.1 --- Crespina
30.2 --- Vicopisano
30.3 --- Orciano Pisano
31.7 --- Buti
31.9 --- Lucca
32.5 --- Lari
32.7 --- Camaiore
33.0 --- Calcinaia
33.7 --- Pietrasanta

Quality location estimate: Erh: 1.1 km, Erz: 2.8 km, Nf: 32, Gap: 147 °, 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.
PIIIV2026-09-28 05:30:26.7000.01400.041.732026-09-28 05:30:30.6260.1544-0.251.1028.7
CMEIT2026-09-28 05:30:27.6640.0200-0.111.662026-09-28 05:30:32.8100.04000.011.6435.9
MAIMGU2026-09-28 05:30:28.1600.01900.031.752026-09-28 05:30:33.2100.1143-0.271.0438.2
CARDGU2026-09-28 05:30:29.5300.0824-0.041.692026-09-28 05:30:36.0850.35070.130.9148.0
CRRIT2026-09-28 05:30:27.8190.0200-2.170.072026-09-28 05:30:36.6200.04000.031.4850.2
VGLIT2026-09-28 05:30:30.1610.0200-0.121.592026-09-28 05:30:36.6500.0400-0.510.4452.3
BDIIV2026-09-28 05:30:30.9800.0281-0.151.482026-09-28 05:30:38.7670.04000.061.3756.2
EQUIGU2026-09-28 05:30:30.9500.0291-0.071.712026-09-28 05:30:37.8300.1735-0.570.4758.0
VLCMN2026-09-28 05:30:31.4200.03410.131.272026-09-28 05:30:38.6850.3918-0.270.8558.9
SARMGU2026-09-28 05:30:32.0100.03110.081.472026-09-28 05:30:40.0800.1855-0.001.2161.9
POPMGU2026-09-28 05:30:32.4500.03210.360.402026-09-28 05:30:40.2700.1885-0.131.1862.8
AULIT2026-09-28 05:30:30.8640.0200-1.320.072026-09-28 05:30:40.2980.0400-0.071.4065.2
GSCLGU2026-09-28 05:30:36.2050.02000.021.522026-09-28 05:30:46.7100.2517-0.720.4283.8
MSSAIV2026-09-28 05:30:36.2500.0462-0.790.202026-09-28 05:30:46.7500.0400-2.100.0892.6
GRAMGU2026-09-28 05:30:37.3490.02000.410.372026-09-28 05:30:49.8210.04001.500.0094.3
MORSIFR2026-09-28 05:30:38.5000.0512-0.131.372026-09-28 05:30:50.4110.0400-1.470.10104.3


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.		 Dist. (km) Azimuth
PII IVHH1.141.85e-128.774
CME ITHN1.281.70e-135.913
MAIM GUHH1.171.02e-138.238
CARD GUHH1.752.80e-148.028
CRR ITHN1.812.93e-150.2350
BDI IVHH1.237.75e-256.234
EQUI GUHH1.286.37e-258.0356
VLC MNHH1.304.60e-258.914
SARM GUEH1.276.60e-261.915
POPM GUHH1.261.06e-162.845
AUL ITHN1.701.30e-165.2343
MSSA IVHH1.372.78e-292.6323
GRAM GUHH1.618.46e-294.3353


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.
(°)
PII IVHHZ2.3569e-53.7319e-61.3792e-63.8276e-71.8796e-74.3978e-55.8486e-63.5453e-78.3524e-828.774
PII IVHHN2.4636e-53.2161e-61.6977e-64.8290e-72.4788e-76.2040e-51.2009e-53.7658e-75.9755e-828.774
PII IVHHE1.7168e-53.3253e-61.6667e-65.2968e-72.8014e-74.5278e-51.1246e-54.2507e-76.8818e-828.774
CME ITHNZ9.2248e-61.4934e-61.0138e-64.3978e-72.1984e-71.9725e-54.5181e-63.0520e-74.5010e-835.913
CME ITHNN1.5627e-52.9560e-61.6055e-67.0243e-74.0638e-75.3019e-59.1017e-64.4170e-76.0794e-835.913
CME ITHNE1.6970e-52.1216e-61.6971e-67.4547e-73.0314e-72.5240e-51.1528e-53.9924e-77.1669e-835.913
MAIM GUHHZ8.0377e-69.4784e-75.6747e-72.2259e-79.2136e-81.7931e-53.1700e-61.3540e-72.1178e-838.238
MAIM GUHHN1.1774e-51.8558e-69.5420e-73.5229e-71.6099e-72.5943e-54.9073e-62.2378e-74.0131e-838.238
MAIM GUHHE1.3073e-51.5485e-66.9849e-72.6585e-71.1018e-72.2692e-52.6528e-61.8791e-73.0111e-838.238
CARD GUHHZ1.3232e-51.5952e-68.4985e-74.1528e-71.4274e-72.8032e-53.1901e-61.9532e-73.5421e-848.028
CARD GUHHN4.7736e-56.4081e-62.5854e-66.7475e-73.1642e-71.4185e-47.7846e-65.0137e-71.3018e-748.028
CARD GUHHE3.2437e-54.1499e-61.7165e-65.1075e-72.8547e-71.0950e-45.4829e-64.7611e-78.0916e-848.028
CRR ITHNZ1.7552e-52.4604e-61.4784e-65.3793e-72.9434e-75.1226e-54.9836e-64.6673e-76.0742e-850.2350
CRR ITHNN3.1877e-54.3745e-62.9865e-68.2543e-73.9856e-71.2039e-41.4749e-55.6602e-71.0176e-750.2350
CRR ITHNE2.7538e-53.9497e-62.2524e-65.6904e-73.2651e-78.3389e-51.0252e-54.6894e-78.9814e-850.2350
VGL ITHGZ1.6450e-52.3659e-61.6668e-67.6594e-73.2647e-73.3206e-57.3646e-63.9204e-75.7642e-852.37
VGL ITHGN1.7245e-53.5036e-63.2102e-61.3681e-65.4730e-74.8684e-51.6059e-57.0463e-79.4193e-852.37
VGL ITHGE1.5890e-53.8206e-63.2958e-61.2158e-65.9548e-73.3306e-51.9852e-59.3798e-71.0079e-752.37
BDI IVHHZ7.7119e-67.8362e-75.0548e-71.6977e-76.6822e-81.2219e-52.1791e-69.5174e-81.7682e-856.234
BDI IVHHN7.0488e-61.2025e-67.9280e-72.9023e-71.2898e-72.8438e-53.9572e-61.8259e-72.7048e-856.234
BDI IVHHE6.2839e-69.6190e-78.2787e-73.4240e-71.0065e-72.2153e-54.0333e-61.3854e-72.3423e-856.234
EQUI GUHHZ2.1692e-64.2017e-72.2545e-77.7197e-83.8041e-84.8318e-68.8385e-74.8915e-88.2404e-958.0356
EQUI GUHHN5.6777e-67.0962e-73.6206e-71.4244e-77.2383e-81.4784e-51.8169e-69.1996e-81.4341e-858.0356
EQUI GUHHE4.5858e-69.8646e-75.4911e-72.1930e-71.0916e-71.0474e-53.0750e-61.5746e-72.1731e-858.0356
VLC MNHHZ3.8919e-64.6964e-72.2080e-78.2169e-84.1309e-86.5890e-61.0307e-65.7585e-88.6324e-958.914
VLC MNHHN6.7415e-69.0529e-74.3156e-71.2507e-76.4367e-81.3620e-52.1062e-69.8608e-81.7831e-858.914
VLC MNHHE4.3789e-66.3727e-73.7407e-71.0867e-74.8571e-81.5886e-51.8540e-68.3624e-81.4983e-858.914
SARM GUEHZ3.3575e-65.9989e-74.0341e-71.2725e-75.3337e-81.0303e-51.9558e-68.5322e-81.5851e-861.915
SARM GUEHN3.9925e-65.4994e-74.8155e-73.8095e-71.9233e-78.1005e-61.9730e-63.0749e-71.6351e-861.915
SARM GUEHE3.5791e-66.3123e-74.4656e-72.1233e-78.3307e-81.3177e-53.0783e-61.0532e-71.5520e-861.915
POPM GUHHZ8.4020e-61.1623e-65.7576e-71.6007e-76.5466e-81.9098e-52.9802e-68.9651e-81.8035e-862.845
POPM GUHHN1.0027e-51.7210e-61.0740e-62.3195e-71.0976e-72.5453e-54.0304e-61.8210e-73.8480e-862.845
POPM GUHHE6.7127e-61.3273e-61.1506e-62.7990e-71.3088e-72.2384e-55.1230e-62.0146e-73.5341e-862.845
AUL ITHNZ3.1051e-66.9158e-76.0426e-73.4455e-71.5468e-78.5822e-63.8750e-61.9940e-71.7886e-865.2343
AUL ITHNN3.8601e-69.2969e-79.0958e-74.8942e-72.8864e-78.6072e-65.3498e-64.5110e-73.1488e-865.2343
AUL ITHNE5.3234e-61.3860e-61.3502e-65.4792e-72.3149e-71.1403e-51.0004e-52.7552e-74.0899e-865.2343
GSCL GUHHZ1.6326e-62.4898e-72.3713e-71.6450e-79.2843e-84.1451e-61.5030e-69.9035e-86.4334e-983.821
GSCL GUHHN3.3135e-61.0584e-68.5295e-73.3495e-71.4175e-76.8963e-65.4193e-61.8985e-73.1551e-883.821
GSCL GUHHE3.5336e-61.2526e-61.0062e-64.3101e-71.7970e-79.2079e-66.3696e-62.4076e-73.7212e-883.821
MSSA IVHHZ7.8455e-71.5711e-71.2318e-77.1506e-83.0900e-83.0229e-66.6364e-73.7330e-84.1849e-992.6323
MSSA IVHHN1.1871e-63.1781e-72.1964e-79.8251e-83.9076e-85.2233e-68.1564e-75.0801e-87.2434e-992.6323
MSSA IVHHE1.0625e-62.7819e-72.1522e-71.0236e-74.1043e-83.2389e-68.4437e-75.6434e-88.6847e-992.6323
GRAM GUHHZ1.3785e-62.8493e-72.5559e-77.9103e-83.7286e-83.1744e-61.6916e-64.8238e-87.8087e-994.3353
GRAM GUHHN3.1449e-67.4736e-77.0540e-73.4787e-71.4475e-71.0221e-54.2873e-62.1263e-72.8637e-894.3353
GRAM GUHHE2.4058e-66.6054e-76.0715e-72.2988e-79.4831e-86.9877e-64.2290e-61.2322e-71.8366e-894.3353
MORSIFRHHZ5.4847e-71.1521e-78.2443e-83.3046e-82.6516e-81.8941e-65.7231e-74.0764e-82.9983e-9104.3221
MORSIFRHHN6.4860e-71.1766e-77.7103e-82.8020e-81.6600e-81.8212e-63.3063e-72.4390e-82.7738e-9104.3221
MORSIFRHHE5.4417e-71.1399e-79.0122e-83.3633e-81.9659e-81.3099e-65.5448e-72.9517e-83.2361e-9104.3221
*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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