MANUAL Location - Area: Mugello , magnitude (ML): 1.6
2024-12-31 21:21:18 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-01-01 13:41:15

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Earthquake info - Manual location
Event - ID :241231211905
Magnitude (ML) :1.6 +/- 0.2
Origin Time :2024-12-31 21:21:18.93 (UTC)
Location : Latitude: 44.034 N, Longitude: 11.318 E
Area :Mugello
Depth (km) :15.99
Distances (km) : 5.2 --- Scarperia
7.1 --- Barberino di Mugello
7.7 --- San Piero a Sieve
10.5 --- Borgo San Lorenzo
10.8 --- Firenzuola
13.1 --- Vernio
14.4 --- Vaglia
16.2 --- Vicchio
16.8 --- Cantagallo
16.9 --- Vaiano
17.4 --- Castiglione dei Pepoli
20.5 --- Palazzuolo sul Senio
20.8 --- Monghidoro
21.4 --- San Benedetto Val di Sambro
22.8 --- Dicomano
22.8 --- Calenzano
23.7 --- Camugnano
23.9 --- Sesto Fiorentino
24.1 --- Marradi
24.5 --- Prato

Quality location estimate: Erh: 0.7 km, Erz: 0.7 km, Nf: 26, Gap: 74 °, Rms: 0.17


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.
SEIIV2024-12-31 21:21:22.3600.01200.011.732024-12-31 21:21:23.8400.0501-1.200.0517.1
RUFIIV2024-12-31 21:21:25.4050.01800.440.152024-12-31 21:21:29.3150.0932-0.151.4331.1
LMDIV2024-12-31 21:21:26.3900.0241-0.011.732024-12-31 21:21:31.8000.1073-0.251.1335.3
MTRZIV2024-12-31 21:21:27.4110.02001.590.002024-12-31 21:21:33.3600.04002.140.0036.2
POPMGU2024-12-31 21:21:27.7150.02610.230.722024-12-31 21:21:33.7300.1474-0.101.3547.7
OSSCIV2024-12-31 21:21:30.0490.02000.161.102024-12-31 21:21:37.6790.0400-0.041.4159.4
BDIIV2024-12-31 21:21:29.7210.0361-0.031.642024-12-31 21:21:37.4610.1795-0.290.9960.1
CSNTIV2024-12-31 21:21:30.7900.03410.021.562024-12-31 21:21:39.1390.1935-0.091.1864.4
CARDGU2024-12-31 21:21:31.1450.02000.041.512024-12-31 21:21:39.6790.2066-0.161.1168.7
MAIMGU2024-12-31 21:21:31.1900.0361-0.251.112024-12-31 21:21:39.8900.3497-0.570.5669.3
GSCLGU2024-12-31 21:21:32.1130.0200-0.181.342024-12-31 21:21:40.5180.2096-1.630.0370.0
PIIIV2024-12-31 21:21:32.2200.0391-0.171.382024-12-31 21:21:41.5200.0400-0.540.4674.1
SARMGU2024-12-31 21:21:32.7700.02000.011.532024-12-31 21:21:42.9800.23060.250.8276.9


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.		 Dist. (km) Azimuth
MTRZ IVHH1.684.15e-136.215
POPM GUHH1.452.91e-147.7272
OSSC IVHH1.671.49e-159.4186
BDI IVHH1.571.48e-160.1273
CARD GUHH1.507.49e-268.7270
MAIM GUHH1.253.67e-269.3259
GSCL GUHH1.851.60e-170.0301
PII IVHH1.445.44e-274.1242
SARM GUEH1.547.68e-276.9283


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.
(°)
SEI IVHHZ4.8625e-41.0041e-45.9924e-51.8748e-59.2565e-61.8320e-33.3811e-41.3287e-52.1461e-617.155
SEI IVHHN7.4050e-41.7108e-41.0534e-44.3928e-52.1290e-51.4562e-35.2630e-43.1128e-54.7474e-617.155
SEI IVHHE7.0663e-41.2854e-45.8101e-51.9555e-51.2987e-51.5656e-33.0663e-42.1646e-53.6742e-617.155
MTRZ IVHHZ3.8862e-61.3142e-61.3832e-65.8583e-72.6881e-71.1196e-51.0861e-53.3022e-73.9747e-836.215
MTRZ IVHHN7.9656e-63.4175e-63.1104e-62.1163e-68.5815e-71.8987e-52.0351e-51.0498e-61.1081e-736.215
MTRZ IVHHE9.1289e-63.3981e-63.6838e-61.8962e-66.8366e-71.9586e-51.9810e-58.9831e-79.3559e-836.215
POPM GUHHZ1.2483e-52.1976e-61.3386e-65.6453e-72.3406e-75.0801e-57.8566e-63.0385e-74.4082e-847.7272
POPM GUHHN2.2402e-53.8334e-62.9405e-68.7402e-73.6619e-78.8036e-51.5780e-55.5548e-78.6534e-847.7272
POPM GUHHE1.6456e-53.0368e-62.3291e-67.2212e-73.0993e-74.0414e-51.0564e-54.3371e-77.4788e-847.7272
OSSC IVHHZ6.5867e-61.3028e-68.8344e-73.8125e-71.2247e-72.5297e-53.1776e-61.8039e-72.9974e-859.4186
OSSC IVHHN1.0530e-52.6237e-61.4099e-64.9458e-72.5426e-73.3518e-54.9043e-63.8691e-76.7248e-859.4186
OSSC IVHHE9.4796e-61.8238e-61.4429e-65.6490e-72.2634e-73.4076e-55.8573e-63.0737e-74.5594e-859.4186
BDI IVHHZ3.4571e-68.8940e-77.4326e-72.8164e-71.4247e-79.5306e-64.3675e-61.9208e-72.0649e-860.1273
BDI IVHHN8.5684e-61.9540e-61.5317e-66.4773e-72.6953e-72.9185e-56.7705e-63.7432e-75.5822e-860.1273
BDI IVHHE5.4777e-61.1515e-61.0001e-64.5218e-72.2016e-71.7495e-56.8590e-62.7340e-73.5146e-860.1273
CARD GUHHZ2.9123e-64.4151e-72.4227e-71.1304e-75.2024e-88.5266e-61.2425e-66.4124e-81.0692e-868.7270
CARD GUHHN5.6288e-61.2980e-67.9116e-72.9592e-71.4496e-72.2336e-53.4331e-62.1934e-72.8786e-868.7270
CARD GUHHE5.2875e-68.0478e-76.6806e-72.6806e-71.2388e-72.0262e-52.4552e-61.3409e-72.0506e-868.7270
MAIM GUHHZ1.1332e-62.7193e-72.5424e-71.6473e-79.0631e-83.3218e-61.3811e-61.4181e-79.0411e-969.3259
MAIM GUHHN2.1603e-63.4591e-73.3963e-72.0719e-78.5959e-85.3163e-61.7754e-61.1267e-71.1865e-869.3259
MAIM GUHHE2.2708e-64.2319e-72.5044e-71.4858e-76.6478e-87.4811e-61.1788e-68.7190e-88.9682e-969.3259
GSCL GUHHZ2.1418e-64.9661e-73.6826e-72.0725e-79.3068e-83.0536e-62.9178e-69.3525e-81.2045e-870.0301
GSCL GUHHN4.6387e-61.6277e-61.2299e-64.4216e-72.1380e-76.5415e-69.9645e-62.9480e-74.3942e-870.0301
GSCL GUHHE2.1658e-61.0160e-69.1748e-75.3335e-72.4548e-74.7115e-67.0785e-63.2914e-73.5135e-870.0301
PII IVHHZ1.7210e-64.9849e-73.6976e-71.5258e-76.3709e-83.4203e-61.4164e-67.8054e-81.3209e-874.1242
PII IVHHN2.1238e-64.8232e-75.2321e-72.7042e-71.1985e-75.3808e-63.7994e-61.2463e-71.4097e-874.1242
PII IVHHE1.7845e-65.5007e-75.1275e-72.0427e-77.6547e-84.5192e-63.1489e-61.0422e-71.2258e-874.1242
SARM GUEHZ8.3186e-72.8282e-72.2142e-71.3089e-74.1701e-82.1842e-61.7827e-65.2013e-86.8213e-976.9283
SARM GUEHN1.6007e-66.0713e-74.8076e-74.3361e-71.7930e-74.9339e-62.5611e-62.1289e-72.3289e-876.9283
SARM GUEHE1.2548e-64.2454e-73.8974e-73.3280e-71.1580e-73.5166e-63.3294e-61.4061e-71.4911e-876.9283
*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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