MANUAL Location - Area: Appennino pistoiese , magnitude (ML): 0.3
2025-05-03 00:31:13 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-05-03 08:43:19

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Earthquake info - Manual location
Event - ID :250503002954
Magnitude (ML) :0.3 +/- 0.2
Origin Time :2025-05-03 00:31:13.059 (UTC)
Location : Latitude: 44.230 N, Longitude: 10.711 E
Area :Appennino pistoiese
Depth (km) :6.27
Distances (km) : 2.2 --- Montecreto
4.6 --- Riolunato
4.8 --- Sestola
7.1 --- Fanano
7.4 --- Fiumalbo
7.9 --- Pievepelago
9.0 --- Lama Mocogno
10.0 --- Abetone
11.5 --- Palagano
12.9 --- Polinago
13.2 --- Frassinoro
14.8 --- Cutigliano
15.3 --- Pavullo nel Frignano
15.7 --- Montefiorino
16.4 --- Lizzano in Belvedere
18.0 --- Gaggio Montano
19.2 --- Montese
20.3 --- San Marcello Pistoiese
20.3 --- Toano
22.6 --- Porretta Terme

Quality location estimate: Erh: 1.8 km, Erz: 2.9 km, Nf: 20, Gap: 94 °, Rms: 0.13


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.
GSCLGU2025-05-03 00:31:17.1600.01300.021.732025-05-03 00:31:19.8800.0511-0.071.6318.0
BDIIV2025-05-03 00:31:17.3200.0150-0.021.812025-05-03 00:31:20.2790.0641-0.121.4421.9
POPMGU2025-05-03 00:31:17.5900.01600.260.762025-05-03 00:31:20.5600.06610.201.0721.9
ZCCAIV2025-05-03 00:31:20.0450.02001.090.002025-05-03 00:31:25.1010.16041.820.0026.0
SARMGU2025-05-03 00:31:18.1820.10350.081.492025-05-03 00:31:21.6300.0752-0.101.4826.3
VLCMN2025-05-03 00:31:18.5360.02000.200.942025-05-03 00:31:22.5900.08020.450.2127.9
CARDGU2025-05-03 00:31:18.6600.01400.021.732025-05-03 00:31:22.7900.09620.121.3729.9
MAIMGU2025-05-03 00:31:20.2550.0200-0.191.022025-05-03 00:31:25.6400.1354-0.270.8039.9
SEIIV2025-05-03 00:31:23.3910.0200-0.151.292025-05-03 00:31:31.6900.1705-0.021.2055.6
PIIIV2025-05-03 00:31:23.2930.0200-0.670.032025-05-03 00:31:30.7100.1805-1.480.0058.7


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
GSCL GUHH0.245.62e-218.0324
BDI IVHH0.194.37e-221.9206
POPM GUHH0.288.59e-221.9170
ZCCA IVHH-0.141.19e-226.057
SARM GUEH0.022.02e-226.3258
VLC MNHH0.342.19e-227.9253
CARD GUHH0.534.29e-229.9219
MAIM GUHH0.321.34e-239.9207
SEI IVHH0.701.84e-255.6110
PII IVHH0.205.18e-358.7195


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.
(°)
GSCL GUHHZ1.6560e-62.6760e-71.9005e-76.3231e-82.7284e-86.0071e-66.9825e-73.4947e-86.2878e-918.0324
GSCL GUHHN5.1381e-68.1587e-74.9729e-71.3192e-77.1251e-82.0142e-51.9230e-61.1959e-72.0757e-818.0324
GSCL GUHHE2.8330e-66.5762e-73.9923e-71.1161e-75.8747e-89.2792e-61.3726e-68.3114e-81.4516e-818.0324
BDI IVHHZ1.3347e-59.3434e-72.3037e-76.9140e-83.2979e-88.8505e-61.2883e-66.7531e-81.5334e-821.9206
BDI IVHHN6.6329e-66.1970e-73.4214e-71.0474e-75.7765e-81.2072e-52.0066e-61.0336e-71.4855e-821.9206
BDI IVHHE7.9008e-68.4767e-73.6227e-71.1772e-75.7873e-81.2444e-51.5670e-68.9449e-81.7966e-821.9206
POPM GUHHZ4.0684e-66.7231e-74.0890e-71.8342e-76.7396e-81.3457e-52.1570e-68.9231e-81.4688e-821.9170
POPM GUHHN7.7885e-61.1128e-65.7003e-72.7421e-71.3603e-71.9424e-52.9666e-61.7824e-72.0474e-821.9170
POPM GUHHE5.0874e-61.2265e-67.9682e-72.4805e-79.8059e-81.8101e-54.8181e-61.3946e-72.5397e-821.9170
ZCCA IVHHZ3.5788e-75.5475e-86.2675e-83.9016e-81.6667e-88.8806e-73.8478e-72.3924e-82.2914e-926.057
ZCCA IVHHN3.5371e-79.4186e-88.2098e-85.1741e-81.9941e-87.1652e-75.9130e-72.5945e-82.7780e-926.057
ZCCA IVHHE3.0460e-79.1305e-87.9934e-85.4209e-82.4223e-87.7151e-74.5589e-73.0986e-83.2414e-926.057
SARM GUEHZ1.0573e-61.3758e-77.0882e-82.9047e-81.1494e-82.0070e-63.4122e-71.6557e-83.0169e-926.3258
SARM GUEHN1.4685e-62.2131e-71.4943e-77.2445e-82.5339e-83.7601e-65.4638e-73.9666e-85.5789e-926.3258
SARM GUEHE1.7899e-63.0734e-71.4806e-71.0485e-73.6450e-84.4060e-66.6348e-74.7239e-87.3528e-926.3258
VLC MNHHZ5.6021e-64.6955e-71.1513e-73.4874e-81.7644e-84.5621e-63.7806e-72.5092e-85.3887e-927.9253
VLC MNHHN4.3981e-63.9647e-71.8702e-75.5898e-83.0305e-89.3880e-69.1076e-74.7971e-88.4503e-927.9253
VLC MNHHE3.9558e-63.3320e-71.8892e-74.5291e-82.4388e-85.4311e-66.7375e-73.8373e-87.8337e-927.9253
CARD GUHHZ3.1682e-64.1816e-71.1820e-75.0422e-82.9248e-88.2977e-64.5657e-74.6649e-87.9428e-929.9219
CARD GUHHN1.0954e-59.0299e-72.1678e-76.2671e-83.0597e-81.1457e-51.1615e-66.4274e-81.6305e-829.9219
CARD GUHHE7.0241e-69.7894e-73.7961e-78.8828e-84.7356e-82.4531e-51.0904e-68.5637e-81.8359e-829.9219
MAIM GUHHZ6.0607e-78.0192e-85.2799e-82.7181e-81.0860e-82.0720e-63.0552e-71.4601e-82.0761e-939.9207
MAIM GUHHN1.1027e-61.9386e-71.0717e-75.0120e-81.7383e-84.2381e-64.6713e-72.1382e-84.2678e-939.9207
MAIM GUHHE8.7400e-71.2044e-78.4433e-84.3792e-81.5352e-82.8318e-63.7116e-71.7578e-82.5697e-939.9207
SEI IVHHZ6.2525e-71.5986e-71.2931e-77.4258e-84.2232e-81.6200e-66.5103e-75.2341e-85.8630e-955.6110
SEI IVHHN5.7616e-71.6086e-71.6787e-71.0472e-74.4140e-81.9903e-69.6531e-75.4014e-85.9804e-955.6110
SEI IVHHE2.2837e-62.3205e-71.3415e-77.1945e-82.8466e-82.6430e-68.1369e-73.7935e-85.9605e-955.6110
PII IVHHZ4.2470e-76.7028e-84.2771e-81.3502e-85.8084e-98.5398e-72.1456e-77.6230e-91.4210e-958.7195
PII IVHHN4.4365e-77.8003e-85.4060e-81.6882e-88.0345e-91.1209e-63.2857e-71.0555e-82.0568e-958.7195
PII IVHHE3.7851e-77.0437e-85.6889e-81.9344e-88.2770e-91.1171e-62.3544e-71.1140e-81.6342e-958.7195
*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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