MANUAL Location - Area: Appennino modenese , magnitude (ML): 1.2
2025-07-04 22:02:38 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-07-05 08:27:23

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Earthquake info - Manual location
Event - ID :250704220144
Magnitude (ML) :1.2 +/- 0.2
Origin Time :2025-07-04 22:02:38.784 (UTC)
Location : Latitude: 44.275 N, Longitude: 10.989 E
Area :Appennino modenese
Depth (km) :15.59
Distances (km) : 1.3 --- Castel d Aiano
3.6 --- Montese
8.2 --- Zocca
9.7 --- Gaggio Montano
9.9 --- Vergato
13.0 --- Castel di Casio
13.1 --- Porretta Terme
13.2 --- Grizzana Morandi
14.1 --- Pavullo nel Frignano
14.1 --- Camugnano
14.6 --- Lizzano in Belvedere
14.6 --- Savigno
17.2 --- Fanano
17.2 --- Guiglia
18.0 --- Sestola
18.8 --- Marzabotto
19.0 --- Sambuca Pistoiese
19.5 --- Granaglione
19.6 --- Castello di Serravalle
20.1 --- Castiglione dei Pepoli

Quality location estimate: Erh: 1.5 km, Erz: 4.4 km, Nf: 14, Gap: 218 °, Rms: 0.11


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.
ZCCAIV2025-07-04 22:02:42.9120.01400.001.612025-07-04 22:02:47.0680.10020.850.0118.4
POPMGU2025-07-04 22:02:45.1300.0231-0.190.972025-07-04 22:02:49.6290.1023-0.680.0435.4
GSCLGU2025-07-04 22:02:46.2320.0190-0.001.592025-07-04 22:02:51.6820.1093-0.101.2736.8
SARMGU2025-07-04 22:02:48.2100.03010.111.142025-07-04 22:02:55.0090.1504-0.071.1650.7
ERBMIV2025-07-04 22:02:48.8770.0301-0.250.80--:---.-----.---.-- 51.0
CARDGU2025-07-04 22:02:48.4360.08030.350.292025-07-04 22:02:54.9770.1524-0.041.1751.5
VLCMN2025-07-04 22:02:48.2900.03110.001.532025-07-04 22:02:55.5090.15540.121.0152.3
PIIIV2025-07-04 22:02:52.0140.0371-0.051.42--:---.-----.---.-- 73.5


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
ZCCA IVHH1.174.52e-118.4353
POPM GUHH1.122.44e-135.4216
GSCL GUHH0.896.52e-236.8285
SARM GUEH1.461.53e-150.7258
CARD GUHH1.247.52e-251.5236
VLC MNHH1.539.96e-252.3255


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.
(°)
ZCCA IVHHZ2.2520e-53.1250e-61.8683e-68.6162e-73.8418e-74.9576e-59.7951e-65.5618e-76.5031e-818.4353
ZCCA IVHHN2.1371e-53.4102e-63.0947e-61.9885e-69.7196e-72.9621e-52.2697e-51.3010e-61.2934e-718.4353
ZCCA IVHHE1.5838e-53.5743e-63.1020e-61.6260e-65.9231e-72.3331e-51.9938e-58.5657e-71.0002e-718.4353
POPM GUHHZ1.3120e-51.5586e-61.0371e-62.8353e-71.5515e-72.4491e-55.5213e-62.4173e-74.0424e-835.4216
POPM GUHHN1.8240e-53.8247e-62.1094e-65.3802e-72.8885e-74.8917e-59.0859e-64.9032e-79.7618e-835.4216
POPM GUHHE1.4041e-52.5931e-61.5826e-63.4201e-71.9275e-72.8083e-59.4239e-63.0059e-75.0657e-835.4216
GSCL GUHHZ1.8997e-62.5750e-71.7725e-77.3710e-83.2886e-84.2054e-68.3564e-74.8453e-86.3963e-936.8285
GSCL GUHHN3.1125e-67.0387e-75.8706e-72.2326e-78.5566e-87.8166e-62.2653e-61.1550e-71.9028e-836.8285
GSCL GUHHE4.1888e-68.6173e-75.1533e-71.6932e-78.1964e-88.4800e-62.5485e-61.0870e-72.1140e-836.8285
SARM GUEHZ3.6062e-65.8750e-74.1738e-71.7913e-77.4649e-87.4568e-61.9601e-61.1169e-71.6496e-850.7258
SARM GUEHN3.9470e-61.4215e-69.8400e-78.3673e-73.1028e-71.1379e-53.6638e-63.8174e-74.4625e-850.7258
SARM GUEHE6.4151e-69.2329e-77.4299e-75.0889e-71.8619e-71.7265e-54.9610e-62.5158e-72.8062e-850.7258
CARD GUHHZ6.9175e-68.4789e-72.1838e-79.2707e-83.4143e-81.4934e-55.2568e-76.1420e-81.6694e-851.5236
CARD GUHHN1.6569e-51.8430e-66.2064e-71.9296e-71.0220e-73.1989e-51.5666e-61.8399e-74.0076e-851.5236
CARD GUHHE1.1059e-51.3617e-64.8723e-71.4345e-76.9600e-83.2088e-51.4193e-61.1916e-72.6444e-851.5236
VLC MNHHZ5.2894e-66.3286e-74.3038e-72.0840e-78.2351e-86.2987e-61.8967e-61.1635e-71.6467e-852.3255
VLC MNHHN3.6787e-68.7270e-76.7415e-74.5802e-71.7494e-78.5484e-63.0679e-62.0577e-72.8667e-852.3255
VLC MNHHE4.8912e-61.1273e-66.7916e-72.2144e-71.0885e-71.3059e-52.9381e-61.4502e-72.7868e-852.3255
*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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