MANUAL Location - Area: Appennino bolognese , magnitude (ML): 1.7
2024-03-25 05:51:41 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2024-03-25 08:47:25

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Earthquake info - Manual location
Event - ID :240325055101
Magnitude (ML) :1.7 +/- 0.2
Origin Time :2024-03-25 05:51:41.239 (UTC)
Location : Latitude: 44.143 N, Longitude: 11.488 E
Area :Appennino bolognese
Depth (km) :12.38
Distances (km) : 5.7 --- Palazzuolo sul Senio
7.9 --- Castel del Rio
9.0 --- Firenzuola
12.4 --- Marradi
14.2 --- Casola Valsenio
14.2 --- Fontanelice
16.0 --- Monghidoro
17.2 --- Borgo Tossignano
19.3 --- Loiano
19.4 --- Scarperia
20.2 --- Casalfiumanese
21.4 --- Monterenzio
21.5 --- Tredozio
21.8 --- San Benedetto Val di Sambro
22.4 --- Borgo San Lorenzo
23.1 --- Monzuno
23.3 --- Vicchio
23.7 --- San Piero a Sieve
23.9 --- Riolo Terme
24.4 --- Modigliana

Quality location estimate: Erh: 1.2 km, Erz: 1.6 km, Nf: 28, Gap: 73 °, Rms: 0.26


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.
SEIIV2024-03-25 05:51:45.0000.00900.011.772024-03-25 05:51:47.9600.0561-0.121.6119.3
LMDIV2024-03-25 05:51:45.4400.0110-0.930.222024-03-25 05:51:48.4900.0661-1.950.0022.6
MTRZIV2024-03-25 05:51:45.7100.0150-0.221.202024-03-25 05:51:49.7100.1975-0.071.4323.4
IMOLIV2024-03-25 05:51:48.1500.01600.001.772024-03-25 05:51:52.8800.3407-0.950.3233.8
RUFIIV2024-03-25 05:51:48.2200.01800.011.752024-03-25 05:51:53.4200.1905-0.301.1036.1
ZCCAIV2024-03-25 05:51:51.2000.0241-0.041.712024-03-25 05:51:59.7810.04000.410.7448.6
POPMGU2024-03-25 05:51:52.9830.02000.770.262024-03-25 05:52:00.8100.18250.281.0060.7
OSSCIV2024-03-25 05:51:54.9880.02000.191.062024-03-25 05:52:04.3630.0400-0.311.0772.8
BDIIV2024-03-25 05:51:54.1500.0361-0.281.142024-03-25 05:52:04.6720.22360.271.0272.9
CSNTIV2024-03-25 05:51:56.0000.05820.400.722024-03-25 05:52:05.6200.3828-0.410.8677.1
CARDGU2024-03-25 05:51:56.6340.02000.600.532024-03-25 05:52:06.9300.2917-0.051.1382.4
MAIMGU2024-03-25 05:51:57.0750.02000.530.592024-03-25 05:52:07.5760.0400-0.241.1784.6
PIIIV2024-03-25 05:51:57.7900.04620.061.422024-03-25 05:52:08.7460.0400-1.030.2491.0
EQUIGU2024-03-25 05:51:59.8740.0803-0.291.122024-03-25 05:52:13.7250.0400-0.281.06107.2


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
ZCCA IVHH1.461.38e-148.6300
POPM GUHH1.733.36e-160.7260
OSSC IVHH1.941.78e-172.8196
BDI IVHH1.671.23e-172.9263
CARD GUHH2.011.60e-182.4261
MAIM GUHH1.655.93e-284.6253
PII IVHH1.889.43e-291.0239
EQUI GUHH1.522.81e-2107.2272


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 IVHHZ2.1433e-48.4030e-57.3993e-53.0443e-51.3987e-53.7399e-46.2046e-41.9921e-52.8038e-619.3226
SEI IVHHN4.6435e-41.7948e-41.4786e-47.3165e-53.3047e-54.8179e-41.2569e-34.1879e-55.0500e-619.3226
SEI IVHHE2.0190e-45.3973e-55.6771e-52.6531e-51.2626e-53.5108e-44.9016e-41.6326e-51.4719e-619.3226
MTRZ IVHHZ3.5337e-59.7056e-69.5765e-66.3046e-64.3290e-67.6806e-56.9444e-56.0313e-63.8227e-723.4345
MTRZ IVHHN1.0178e-43.3603e-52.6883e-51.3501e-55.3749e-62.3694e-42.1444e-46.9520e-68.8466e-723.4345
MTRZ IVHHE8.1791e-52.4318e-52.8073e-51.7317e-57.4060e-62.0939e-41.8154e-47.5703e-68.4639e-723.4345
ZCCA IVHHZ2.1808e-66.1427e-75.4539e-73.8232e-71.6680e-74.7207e-64.6889e-62.2618e-71.6095e-848.6300
ZCCA IVHHN1.9602e-68.9879e-78.7109e-77.8030e-72.9475e-73.5845e-64.4586e-63.6055e-73.3451e-848.6300
ZCCA IVHHE1.9722e-67.8306e-78.0417e-74.5381e-71.7358e-74.0174e-64.6001e-62.2776e-72.2111e-848.6300
POPM GUHHZ4.8188e-61.0199e-61.0137e-65.6048e-72.1585e-71.5361e-55.4558e-62.3918e-73.1990e-860.7260
POPM GUHHN1.2161e-53.2289e-62.5195e-61.1378e-64.9192e-71.9425e-51.1621e-56.9215e-79.9813e-860.7260
POPM GUHHE6.7104e-61.7922e-61.6707e-66.0829e-72.9332e-71.1972e-51.3017e-54.1827e-75.3774e-860.7260
OSSC IVHHZ3.6874e-67.4924e-77.8651e-75.0640e-71.7427e-71.0180e-54.5057e-62.1389e-72.2050e-872.8196
OSSC IVHHN3.8004e-61.0018e-61.1383e-65.5649e-73.3263e-77.9549e-66.7863e-64.5155e-73.3040e-872.8196
OSSC IVHHE5.9294e-61.8382e-61.6484e-67.7846e-73.2617e-71.1787e-51.0037e-54.2674e-75.1779e-872.8196
BDI IVHHZ1.6404e-65.0044e-75.8239e-74.4620e-71.7356e-75.1858e-63.5292e-61.7294e-71.7062e-872.9263
BDI IVHHN3.2093e-61.0274e-69.9143e-76.7435e-73.5606e-78.4808e-66.7441e-63.6145e-73.5509e-872.9263
BDI IVHHE2.5713e-68.6555e-78.9109e-76.5511e-72.4064e-78.2082e-65.1300e-62.5559e-72.8045e-872.9263
CARD GUHHZ1.4692e-63.7519e-73.6489e-72.5539e-71.2122e-74.6223e-62.4461e-61.1783e-71.2250e-882.4261
CARD GUHHN4.6771e-61.1400e-69.4265e-78.5847e-74.7301e-71.2496e-55.5926e-65.3857e-74.7078e-882.4261
CARD GUHHE3.6685e-67.0080e-77.0341e-73.8475e-71.5209e-78.3437e-63.8944e-61.6268e-72.0039e-882.4261
MAIM GUHHZ7.1696e-73.2750e-73.2247e-72.6461e-77.9420e-82.0810e-62.1866e-69.4327e-81.1950e-884.6253
MAIM GUHHN1.2117e-64.2670e-74.8643e-73.6054e-71.3374e-72.7418e-63.2247e-61.6394e-71.4886e-884.6253
MAIM GUHHE8.9799e-73.3455e-73.5064e-72.7499e-71.2452e-71.8650e-62.6634e-61.4699e-71.2714e-884.6253
PII IVHHZ1.2731e-65.1753e-74.4646e-72.1891e-78.4401e-82.8143e-63.8343e-61.1050e-71.5896e-891.0239
PII IVHHN1.6999e-67.0628e-77.0102e-75.1574e-72.1979e-72.4623e-64.6559e-62.6483e-72.5395e-891.0239
PII IVHHE1.7181e-66.4943e-77.4117e-74.5174e-71.6209e-72.7459e-64.9271e-62.0953e-72.1862e-891.0239
EQUI GUHHZ4.6802e-71.2172e-71.4627e-71.0242e-73.8671e-81.3435e-67.5498e-74.8545e-83.8809e-9107.2272
EQUI GUHHN4.3311e-71.9595e-71.5878e-71.7047e-77.6821e-88.5982e-79.4278e-78.1896e-86.7830e-9107.2272
EQUI GUHHE3.2858e-71.2401e-71.0488e-79.4508e-86.3828e-89.0172e-79.2858e-76.7738e-84.3084e-9107.2272
*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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