MANUAL Location - Area: Zona Chianti , magnitude (ML): 1.0
2024-03-25 18:03:58 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2024-03-26 13:02:59

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Earthquake info - Manual location
Event - ID :240325180344
Magnitude (ML) :1.0 +/- 0.2
Origin Time :2024-03-25 18:03:58.621 (UTC)
Location : Latitude: 43.551 N, Longitude: 11.071 E
Area :Zona Chianti
Depth (km) :13.51
Distances (km) : 2.4 --- Certaldo
8.2 --- Barberino Val d Elsa
8.5 --- Tavarnelle Val di Pesa
9.4 --- Gambassi Terme
9.5 --- San Gimignano
10.2 --- Castelfiorentino
10.4 --- Montespertoli
10.7 --- Poggibonsi
12.7 --- Montaione
14.9 --- Colle di Val d Elsa
15.0 --- San Casciano in Val di Pesa
19.6 --- Castellina in Chianti
20.2 --- Greve in Chianti
20.7 --- Montelupo Fiorentino
21.1 --- Impruneta
21.3 --- Empoli
21.4 --- Monteriggioni
22.8 --- Capraia e Limite
22.9 --- San Miniato
23.2 --- Casole d Elsa

Quality location estimate: Erh: 1.7 km, Erz: 2.8 km, Nf: 24, Gap: 177 °, Rms: 0.33


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.
OSSCIV2024-03-25 18:04:02.9280.02000.300.642024-03-25 18:04:05.4860.04000.021.8920.1
CSNTIV2024-03-25 18:04:03.6700.0422-0.061.732024-03-25 18:04:06.8440.1143-0.510.3123.9
RUFIIV2024-03-25 18:04:07.9860.02000.071.772024-03-25 18:04:13.6510.1002-1.120.4149.4
PIIIV2024-03-25 18:04:07.7500.0703-0.061.622024-03-25 18:04:13.2840.1514-1.190.4249.7
POPMGU2024-03-25 18:04:09.7200.2739-0.151.102024-03-25 18:04:17.4300.1765-0.800.3762.0
SEIIV2024-03-25 18:04:10.3230.02000.061.742024-03-25 18:04:17.6910.0400-1.470.3362.1
MAIMGU2024-03-25 18:04:10.0000.03310.121.562024-03-25 18:04:16.9390.1845-1.090.4163.0
BDIIV2024-03-25 18:04:11.2300.0361-0.061.582024-03-25 18:04:20.8530.04000.211.1569.8
CMEIT2024-03-25 18:04:12.4930.08030.061.602024-03-25 18:04:20.5130.0400-1.960.1277.6
LMDIV2024-03-25 18:04:13.1800.0412-0.191.072024-03-25 18:04:22.6500.4138-1.760.2578.8
SARMGU2024-03-25 18:04:14.5020.02000.211.232024-03-25 18:04:25.5470.0400-0.330.8189.7
EQUIGU2024-03-25 18:04:16.0940.02000.081.522024-03-25 18:04:27.5630.0400-1.340.38101.3


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
OSSC IVHH1.073.09e-120.1103
PII IVHH0.792.85e-249.7294
POPM GUHH0.914.85e-262.0335
SEI IVHH1.417.46e-262.122
MAIM GUHH0.791.56e-263.0311
BDI IVHH0.952.52e-269.8326
CME ITHN1.465.18e-277.6306
SARM GUEH0.911.26e-289.7323
EQUI GUHH1.041.07e-2101.3313


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.
(°)
OSSC IVHHZ1.5270e-51.7145e-61.1357e-64.0151e-71.6192e-72.9317e-56.3045e-62.2741e-73.4409e-820.1103
OSSC IVHHN2.0180e-54.2957e-62.6022e-61.0436e-65.2788e-75.4414e-59.4738e-67.9188e-71.2409e-720.1103
OSSC IVHHE2.4122e-54.2337e-62.7659e-68.1059e-73.7510e-75.0121e-51.2745e-56.2548e-71.0877e-720.1103
PII IVHHZ2.7810e-64.5140e-72.6850e-78.0576e-84.1729e-84.6199e-61.0952e-66.6709e-81.2610e-849.7294
PII IVHHN1.6427e-63.4165e-72.7727e-79.7190e-84.8447e-84.4300e-61.7084e-66.1073e-87.6730e-949.7294
PII IVHHE1.6248e-63.1616e-72.2138e-76.3374e-82.8750e-85.8071e-61.2150e-64.0382e-86.5496e-949.7294
POPM GUHHZ1.2455e-62.1847e-71.7466e-77.1065e-82.7798e-84.6176e-69.7511e-73.8287e-85.3611e-962.0335
POPM GUHHN2.6970e-66.3045e-74.5618e-71.5129e-76.2261e-89.3069e-62.7340e-68.9663e-81.6093e-862.0335
POPM GUHHE1.6912e-64.1482e-73.8644e-71.1705e-75.7691e-85.5158e-62.6754e-68.2988e-81.2352e-862.0335
SEI IVHHZ2.1528e-65.2164e-74.5153e-71.7613e-79.6345e-85.2496e-61.7290e-61.0417e-71.4467e-862.122
SEI IVHHN2.9988e-68.9051e-77.1939e-72.5199e-79.4678e-88.1298e-64.2995e-61.3414e-72.1162e-862.122
SEI IVHHE2.8824e-64.3055e-74.3294e-73.2070e-72.1526e-73.9649e-62.3509e-61.9067e-71.5817e-862.122
MAIM GUHHZ2.1271e-62.8014e-71.2454e-73.9950e-81.7244e-86.9299e-64.9869e-72.4223e-85.2071e-963.0311
MAIM GUHHN1.4744e-62.5544e-71.4491e-75.4904e-82.2928e-86.8672e-65.8570e-72.8687e-84.9499e-963.0311
MAIM GUHHE1.7738e-62.7849e-71.4959e-75.1394e-82.5272e-87.9356e-66.1990e-73.2300e-86.0183e-963.0311
BDI IVHHZ1.6628e-61.9194e-71.1705e-75.2512e-82.6299e-81.9919e-65.9252e-73.1339e-83.9358e-969.8326
BDI IVHHN1.5700e-63.3656e-72.5163e-71.0756e-74.9591e-84.8449e-61.2600e-66.0172e-89.1630e-969.8326
BDI IVHHE1.3725e-62.3721e-71.9860e-71.0519e-74.3047e-84.5847e-61.1449e-64.9404e-86.8050e-969.8326
CME ITHNZ2.5073e-64.1620e-73.7157e-73.1662e-71.5131e-73.9261e-62.3197e-61.5659e-71.0626e-877.6306
CME ITHNN2.1261e-64.2303e-73.6775e-73.1670e-72.0366e-74.6606e-61.9777e-62.5745e-71.9371e-877.6306
CME ITHNE2.8572e-64.1533e-73.8185e-72.8855e-71.9325e-75.4181e-61.9847e-62.7851e-71.7213e-877.6306
SARM GUEHZ3.6149e-75.4947e-84.1755e-82.9446e-81.6980e-87.4000e-71.7955e-71.7829e-81.6653e-989.7323
SARM GUEHN4.4279e-71.0297e-78.9227e-89.1083e-84.6785e-87.9485e-73.7309e-74.9084e-83.8922e-989.7323
SARM GUEHE3.5210e-77.4144e-86.4074e-86.1414e-83.3074e-86.5236e-73.9222e-73.2495e-82.2667e-989.7323
EQUI GUHHZ3.8896e-76.8401e-86.0583e-83.9512e-83.0358e-81.0894e-63.6599e-73.4991e-82.1545e-9101.3313
EQUI GUHHN5.6997e-79.6483e-86.6646e-86.3081e-85.0362e-81.8235e-64.6222e-74.1982e-83.7251e-9101.3313
EQUI GUHHE4.1743e-71.0232e-77.9348e-85.9607e-84.3404e-81.6574e-63.4458e-74.6951e-83.5769e-9101.3313
*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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