MANUAL Location - Area: Appennino bolognese , magnitude (ML): 1.5
2025-11-13 04:24:47 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-11-13 08:19:04

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Earthquake info - Manual location
Event - ID :251113042428
Magnitude (ML) :1.5 +/- 0.2
Origin Time :2025-11-13 04:24:47.894 (UTC)
Location : Latitude: 44.097 N, Longitude: 11.408 E
Area :Appennino bolognese
Depth (km) :18.55
Distances (km) : 3.5 --- Firenzuola
11.3 --- Palazzuolo sul Senio
11.9 --- Scarperia
15.0 --- Castel del Rio
15.5 --- Monghidoro
15.9 --- Borgo San Lorenzo
16.1 --- San Piero a Sieve
16.5 --- Marradi
17.0 --- Barberino di Mugello
18.6 --- Vicchio
19.2 --- San Benedetto Val di Sambro
20.3 --- Castiglione dei Pepoli
20.5 --- Loiano
20.7 --- Vernio
21.8 --- Fontanelice
22.4 --- Casola Valsenio
23.1 --- Monzuno
23.4 --- Vaglia
24.6 --- Dicomano
24.9 --- Borgo Tossignano

Quality location estimate: Erh: 1 km, Erz: 1.2 km, Nf: 32, Gap: 68 °, Rms: 0.35


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.
LMDIV2025-11-13 04:24:53.9500.0201-0.410.962025-11-13 04:24:58.3100.0912-1.020.4330.3
MTRZIV2025-11-13 04:24:54.6500.01500.820.112025-11-13 04:24:58.4910.0400-0.031.8130.7
RUFIIV2025-11-13 04:24:54.7400.01900.021.932025-11-13 04:24:59.2800.1123-0.580.9135.2
IMOLIV2025-11-13 04:24:55.7910.0200-0.760.682025-11-13 04:25:07.3410.04003.890.0143.6
ZCCAIV2025-11-13 04:24:57.9210.02000.051.712025-11-13 04:25:09.0130.04003.360.0148.5
POPMGU2025-11-13 04:24:57.9300.02910.001.842025-11-13 04:25:05.2610.2006-0.131.3855.7
OSSCIV2025-11-13 04:25:00.2310.0200-0.051.762025-11-13 04:25:08.5850.0400-0.650.8767.8
CSNTIV2025-11-13 04:25:01.0600.0432-0.031.722025-11-13 04:25:10.6110.3247-0.021.1272.4
GSCLGU2025-11-13 04:25:01.6900.0522-0.421.062025-11-13 04:25:11.7140.2256-0.870.6873.7
CARDGU2025-11-13 04:25:02.7390.02001.270.072025-11-13 04:25:10.9950.0400-0.301.3076.7
MAIMGU2025-11-13 04:25:01.9410.02000.051.572025-11-13 04:25:11.1830.0400-0.860.6778.3
SARMGU2025-11-13 04:25:02.6670.0200-0.141.572025-11-13 04:25:13.9200.29470.280.7983.3
VLCMN2025-11-13 04:25:02.7480.0200-0.021.672025-11-13 04:25:13.3660.0400-0.191.3884.0
PIIIV2025-11-13 04:25:02.9400.0442-0.021.642025-11-13 04:25:12.9500.2597-1.000.5484.2
ERBMIV2025-11-13 04:25:04.6100.0452-0.441.072025-11-13 04:25:16.8430.0400-0.970.5689.1
EQUIGU2025-11-13 04:25:07.7480.02002.270.002025-11-13 04:25:19.1730.04001.020.17102.2


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
MTRZ IVHH1.807.51e-130.73
ZCCA IVHH1.126.37e-248.5310
POPM GUHH1.613.03e-155.7264
OSSC IVHH1.841.65e-167.8192
GSCL GUHH1.465.83e-273.7294
CARD GUHH1.637.79e-276.7264
MAIM GUHH1.414.02e-278.3255
SARM GUEH1.536.25e-283.3277
VLC MNHH1.654.73e-284.0275
PII IVHH1.433.99e-284.2240
ERBM IVEH1.041.45e-289.1295
EQUI GUHH1.311.95e-2102.2275


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.
(°)
MTRZ IVHHZ6.9515e-62.2912e-62.4903e-61.4985e-66.4531e-71.6748e-51.7157e-57.6501e-77.9557e-830.73
MTRZ IVHHN1.3936e-55.0551e-65.8423e-64.6734e-62.2485e-64.2051e-53.1258e-52.8857e-61.8286e-730.73
MTRZ IVHHE1.5665e-54.8913e-65.3313e-63.8583e-61.1635e-63.6337e-52.7369e-51.3874e-61.4322e-730.73
ZCCA IVHHZ9.9726e-72.9659e-72.8421e-71.7533e-77.3062e-82.0946e-62.2104e-68.0017e-81.0971e-848.5310
ZCCA IVHHN8.6367e-72.9053e-73.1500e-71.9519e-78.3560e-81.8325e-61.9393e-61.1621e-79.3043e-948.5310
ZCCA IVHHE9.8977e-74.4146e-73.9913e-73.1880e-71.2187e-71.6692e-62.6941e-61.7630e-71.5079e-848.5310
POPM GUHHZ7.9951e-61.7942e-61.2496e-64.3900e-71.9670e-72.4731e-57.6080e-62.7080e-74.2729e-855.7264
POPM GUHHN1.6838e-54.0143e-63.0620e-68.1791e-74.3683e-76.2240e-52.0336e-56.7841e-71.0810e-755.7264
POPM GUHHE1.2027e-52.4001e-61.8322e-64.7327e-72.1096e-73.0990e-51.1871e-52.9382e-75.7089e-855.7264
OSSC IVHHZ2.0685e-64.5233e-74.3549e-73.8309e-71.5179e-75.5098e-61.5300e-61.7854e-71.9093e-867.8192
OSSC IVHHN2.8890e-65.5178e-75.8985e-73.5000e-71.3957e-77.1077e-62.6402e-61.6824e-71.5932e-867.8192
OSSC IVHHE3.4757e-61.1197e-61.0552e-69.2710e-74.2392e-78.6138e-64.1357e-65.2427e-74.3158e-867.8192
GSCL GUHHZ1.0142e-63.1603e-71.9374e-71.0271e-75.0185e-82.9415e-61.1088e-65.3767e-86.6733e-973.7294
GSCL GUHHN1.5420e-65.2554e-75.8338e-72.1319e-79.0521e-83.5870e-64.0178e-61.1646e-71.5899e-873.7294
GSCL GUHHE1.4475e-64.3768e-74.4613e-72.2368e-71.0161e-72.8939e-62.9686e-61.3564e-71.2828e-873.7294
CARD GUHHZ1.4904e-63.9287e-72.7098e-72.5186e-71.0151e-75.3118e-61.1544e-61.0931e-71.0395e-876.7264
CARD GUHHN5.5169e-69.6085e-77.3870e-73.8663e-71.4936e-71.5847e-54.4370e-61.7224e-72.7702e-876.7264
CARD GUHHE3.8682e-68.1470e-76.0843e-72.6127e-71.2134e-71.6408e-53.3486e-61.5210e-71.9843e-876.7264
MAIM GUHHZ7.8563e-72.3061e-72.4548e-71.4708e-75.6396e-82.0670e-61.6291e-67.1267e-89.8822e-978.3255
MAIM GUHHN9.4573e-72.7863e-73.0216e-72.3649e-78.4194e-83.6046e-61.6299e-69.0960e-89.4280e-978.3255
MAIM GUHHE9.3127e-72.4680e-72.6496e-71.9450e-77.7645e-83.1328e-61.7909e-69.1694e-88.3560e-978.3255
SARM GUEHZ9.0743e-73.3600e-73.1877e-72.2412e-76.9478e-81.5835e-61.9772e-69.2906e-81.1667e-883.3277
SARM GUEHN9.4158e-74.2587e-74.3379e-73.5881e-71.1881e-72.5159e-62.0893e-61.3046e-71.5093e-883.3277
SARM GUEHE8.8066e-73.5228e-73.6041e-73.4237e-71.0323e-71.6944e-62.5901e-61.2059e-71.3296e-883.3277
VLC MNHHZ9.0819e-72.0253e-71.9311e-71.4816e-76.3323e-82.6016e-69.6231e-77.5788e-88.0469e-984.0275
VLC MNHHN1.3579e-63.8346e-73.7812e-72.3532e-71.0091e-73.3755e-62.3334e-61.2457e-71.2271e-884.0275
VLC MNHHE1.3098e-63.9689e-72.4679e-72.1604e-71.5510e-72.9419e-61.2922e-62.4360e-71.8603e-884.0275
PII IVHHZ1.5139e-63.9028e-73.0939e-79.4482e-84.2944e-83.1367e-61.4467e-66.6058e-89.6541e-984.2240
PII IVHHN8.3076e-73.2537e-73.1482e-71.5573e-78.8912e-82.7173e-61.7491e-61.0845e-71.0827e-884.2240
PII IVHHE1.1128e-63.3708e-73.3032e-71.5606e-75.6299e-81.9491e-61.6650e-66.5796e-89.5858e-984.2240
ERBM IVEHZ1.2075e-61.2009e-78.6066e-87.8081e-84.0715e-82.4216e-63.6114e-75.1157e-83.9890e-989.1295
ERBM IVEHN7.9738e-71.3373e-71.1925e-75.5527e-82.2255e-81.7770e-65.5450e-72.8895e-84.4419e-989.1295
ERBM IVEHE8.9483e-71.0464e-79.6590e-84.5115e-82.8515e-82.1014e-65.3917e-73.6821e-83.3078e-989.1295
EQUI GUHHZ6.2485e-71.5806e-71.5794e-71.3456e-75.4853e-81.1234e-68.8967e-76.2224e-85.6554e-9102.2275
EQUI GUHHN6.0090e-71.5945e-71.6087e-71.1422e-75.7237e-81.7164e-69.8301e-76.0288e-84.4551e-9102.2275
EQUI GUHHE3.6919e-71.1158e-71.0308e-77.0282e-84.0368e-81.1248e-67.9016e-74.7769e-83.1989e-9102.2275
*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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