MANUAL Location - Area: Mugello , magnitude (ML): 1.4
2024-12-31 21:19:47 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-01-01 13:39:45

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Earthquake info - Manual location
Event - ID :241231211904
Magnitude (ML) :1.4 +/- 0.2
Origin Time :2024-12-31 21:19:47.273 (UTC)
Location : Latitude: 44.004 N, Longitude: 11.268 E
Area :Mugello
Depth (km) :20.02
Distances (km) : 2.3 --- Barberino di Mugello
6.3 --- San Piero a Sieve
7.1 --- Scarperia
10.5 --- Vernio
10.8 --- Vaglia
11.1 --- Borgo San Lorenzo
11.9 --- Vaiano
13.1 --- Cantagallo
15.7 --- Firenzuola
17.6 --- Vicchio
17.6 --- Castiglione dei Pepoli
17.9 --- Calenzano
19.3 --- Prato
19.4 --- Sesto Fiorentino
20.2 --- Montemurlo
21.2 --- Montale
21.9 --- Fiesole
22.7 --- Campi Bisenzio
23.3 --- Camugnano
23.6 --- Agliana

Quality location estimate: Erh: 0.9 km, Erz: 0.9 km, Nf: 26, Gap: 61 °, Rms: 0.41


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 21:19:50.1400.0120-1.560.312024-12-31 21:19:51.6200.0501-3.570.0022.6
RUFIIV2024-12-31 21:19:53.2200.0180-0.370.752024-12-31 21:19:57.1100.0932-1.250.0833.4
LMDIV2024-12-31 21:19:54.1300.0190-1.620.342024-12-31 21:19:59.6500.1063-2.540.0041.2
MTRZIV2024-12-31 21:19:55.1530.0200-0.011.902024-12-31 21:20:01.3430.0400-0.011.7242.0
POPMGU2024-12-31 21:19:55.5200.02610.021.872024-12-31 21:20:01.5100.1434-0.101.5245.9
ZCCAIV2024-12-31 21:19:57.4810.02000.181.162024-12-31 21:20:05.8020.04000.790.1049.6
OSSCIV2024-12-31 21:19:57.7530.02000.081.662024-12-31 21:20:05.2790.04000.141.3357.2
BDIIV2024-12-31 21:19:57.3690.0200-0.320.972024-12-31 21:20:05.2300.1805-0.071.4057.9
CSNTIV2024-12-31 21:19:58.6200.0351-0.071.742024-12-31 21:20:06.9200.19350.041.3262.3
MAIMGU2024-12-31 21:19:58.8910.0200-0.251.222024-12-31 21:20:07.4260.0400-0.211.3366.1
GSCLGU2024-12-31 21:19:58.5780.0200-1.830.112024-12-31 21:20:09.2200.2106-0.780.2669.7
PIIIV2024-12-31 21:19:59.9800.0391-0.001.762024-12-31 21:20:09.5400.44290.430.6770.2
SARMGU2024-12-31 21:20:00.5500.0401-0.061.712024-12-31 21:20:10.5300.23160.370.7575.1


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
MTRZ IVHH1.733.46e-142.020
POPM GUHH1.352.47e-145.9277
ZCCA IVHH1.065.31e-249.6329
OSSC IVHH1.601.36e-157.2182
BDI IVHH1.501.33e-157.9277
MAIM GUHH1.112.93e-266.1261
GSCL GUHH1.781.36e-169.7306
PII IVHH1.334.81e-270.2243
SARM GUEH1.436.29e-275.1286


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 IVHHZ5.5339e-41.1596e-46.0366e-51.8079e-59.3895e-62.0340e-33.4177e-41.4045e-52.4393e-622.652
SEI IVHHN9.4994e-41.8697e-41.0268e-44.5020e-52.0115e-51.6293e-35.1256e-43.0137e-54.9229e-622.652
SEI IVHHE1.0516e-31.4869e-45.8189e-51.8906e-51.2791e-51.7004e-33.0939e-42.2275e-53.9125e-622.652
MTRZ IVHHZ3.4939e-61.1390e-61.1650e-65.0003e-72.3830e-78.2271e-69.2470e-62.9720e-73.3585e-842.020
MTRZ IVHHN6.4899e-62.8608e-62.5726e-61.7645e-67.1716e-71.4247e-51.7143e-58.6804e-79.0687e-842.020
MTRZ IVHHE7.9727e-62.7961e-63.0907e-61.6094e-65.7738e-71.4905e-51.6677e-57.5842e-77.8434e-842.020
POPM GUHHZ1.1063e-52.0582e-61.2058e-64.6307e-72.0357e-74.8840e-57.0981e-62.5175e-74.2047e-845.9277
POPM GUHHN1.8050e-53.1683e-62.6140e-67.6189e-73.2264e-78.0098e-51.4353e-54.6101e-78.1486e-845.9277
POPM GUHHE1.5498e-52.8514e-61.9983e-65.8356e-72.5042e-73.5009e-58.4551e-63.4403e-75.9757e-845.9277
ZCCA IVHHZ7.5591e-72.8164e-72.3735e-71.7646e-76.2509e-81.5261e-61.4280e-68.4718e-89.7764e-949.6329
ZCCA IVHHN7.4496e-72.9543e-73.0027e-72.8493e-79.8696e-81.3914e-61.6939e-61.1503e-71.1102e-849.6329
ZCCA IVHHE8.1936e-73.9589e-73.8242e-72.8180e-79.9024e-81.5856e-61.8676e-61.3430e-71.2149e-849.6329
OSSC IVHHZ6.6079e-61.1759e-67.7164e-73.2521e-71.0672e-72.1265e-52.7868e-61.5946e-72.6129e-857.2182
OSSC IVHHN1.0434e-52.4779e-61.2450e-64.1907e-72.1937e-73.4297e-54.2296e-63.4087e-76.1464e-857.2182
OSSC IVHHE9.1933e-61.6946e-61.2991e-65.0776e-72.0493e-73.3274e-55.1875e-62.7658e-74.4368e-857.2182
BDI IVHHZ7.3010e-69.1686e-76.5884e-72.5200e-71.2731e-78.8998e-63.9965e-61.5863e-72.1191e-857.9277
BDI IVHHN1.2822e-51.6692e-61.3610e-65.8862e-72.2894e-72.7400e-56.0785e-63.2015e-74.8278e-857.9277
BDI IVHHE8.0830e-61.0731e-69.1112e-74.0263e-71.9171e-71.6668e-56.2355e-62.3497e-73.2743e-857.9277
MAIM GUHHZ9.5553e-72.6083e-72.1844e-71.1375e-75.0646e-83.2513e-61.2843e-66.9677e-86.5351e-966.1261
MAIM GUHHN1.9050e-63.2055e-73.0176e-71.7136e-76.3292e-84.7360e-61.5351e-67.1131e-89.7122e-966.1261
MAIM GUHHE1.8929e-63.3337e-72.1586e-71.1690e-75.5840e-85.3729e-69.0371e-76.5875e-86.8009e-966.1261
GSCL GUHHZ1.3037e-64.9045e-74.4246e-72.0583e-78.4715e-82.2229e-63.8405e-61.1468e-71.5923e-869.7306
GSCL GUHHN3.9371e-61.4220e-61.0536e-64.0006e-71.9291e-76.2651e-67.4765e-62.7878e-73.8775e-869.7306
GSCL GUHHE1.9594e-69.8113e-78.9980e-75.1587e-72.3534e-74.5265e-67.0977e-63.1026e-73.3412e-869.7306
PII IVHHZ1.6924e-64.3419e-73.2662e-71.2731e-75.3574e-83.9557e-61.2323e-67.1527e-81.1506e-870.2243
PII IVHHN1.7041e-64.5895e-74.5731e-72.2357e-79.8232e-84.5699e-63.3467e-61.1490e-71.2142e-870.2243
PII IVHHE1.3690e-64.4780e-74.3208e-71.7194e-76.4262e-83.7787e-62.6641e-68.7367e-81.0115e-870.2243
SARM GUEHZ7.8495e-72.2178e-71.9858e-71.1393e-73.4804e-82.0762e-61.5425e-64.6707e-86.4374e-975.1286
SARM GUEHN1.4297e-65.7488e-74.1055e-73.7013e-71.5434e-73.8975e-62.1867e-61.9080e-72.0502e-875.1286
SARM GUEHE1.0791e-64.0645e-73.5990e-73.1081e-71.0799e-73.5198e-62.9059e-61.2827e-71.5214e-875.1286
*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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