MANUAL Location - Area: Appennino modenese , magnitude (ML): 0.8
2025-03-31 04:14:01 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-03-31 07:37:28

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Earthquake info - Manual location
Event - ID :250331041132
Magnitude (ML) :0.8 +/- 0.2
Origin Time :2025-03-31 04:14:01.736 (UTC)
Location : Latitude: 44.372 N, Longitude: 10.775 E
Area :Appennino modenese
Depth (km) :15.83
Distances (km) : 5.0 --- Polinago
6.1 --- Pavullo nel Frignano
6.3 --- Serramazzoni
7.8 --- Lama Mocogno
10.1 --- Prignano sulla Secchia
11.5 --- Palagano
12.3 --- Montefiorino
14.3 --- Montecreto
15.7 --- Sestola
16.0 --- Guiglia
16.0 --- Castellarano
17.1 --- Toano
17.5 --- Montese
17.6 --- Zocca
18.1 --- Frassinoro
18.2 --- Fanano
18.3 --- Marano sul Panaro
18.3 --- Riolunato
18.7 --- Maranello
19.0 --- Sassuolo

Quality location estimate: Erh: 1.8 km, Erz: 2.3 km, Nf: 14, Gap: 175 °, Rms: 0.28


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.
GSCLGU2025-03-31 04:14:06.6300.01200.350.702025-03-31 04:14:09.6140.07020.021.5122.3
ZCCAIV2025-03-31 04:14:06.8500.22390.071.212025-03-31 04:14:12.5610.04001.840.0023.1
ERBMIV2025-03-31 04:14:08.6800.0170-0.011.582025-03-31 04:14:13.9200.1002-0.031.2933.8
SARMGU2025-03-31 04:14:09.7820.02000.690.512025-03-31 04:14:14.7320.27070.161.0940.1
BDIIV2025-03-31 04:14:10.0300.02310.740.452025-03-31 04:14:15.1300.12230.181.2240.7
CARDGU2025-03-31 04:14:10.4000.0261-0.011.532025-03-31 04:14:16.7420.1915-0.101.0047.8
GRAMGU2025-03-31 04:14:13.0700.23790.191.132025-03-31 04:14:21.3680.07010.460.7960.0


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
GSCL GUHH1.052.44e-122.3261
ZCCA IVHH0.941.77e-123.198
ERBM IVEH0.786.04e-233.8281
SARM GUEH0.462.44e-240.1235
BDI IVHH0.754.88e-240.7203
CARD GUHH0.893.88e-247.8211
GRAM GUHH0.995.54e-260.0284


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 GUHHZ3.3818e-67.6254e-75.2211e-71.6802e-77.8178e-87.2960e-63.3658e-61.2123e-71.6996e-822.3261
GSCL GUHHN1.0361e-53.0834e-61.8716e-68.4116e-74.0162e-72.1526e-51.2373e-55.6292e-78.6857e-822.3261
GSCL GUHHE6.6773e-61.5192e-61.1423e-64.8108e-72.4820e-71.1347e-56.6398e-63.6285e-75.1401e-822.3261
ZCCA IVHHZ4.5008e-66.8422e-76.3058e-72.8809e-71.0381e-79.4915e-64.4078e-61.2789e-71.8517e-823.198
ZCCA IVHHN4.3783e-69.1417e-77.9477e-77.0770e-72.8133e-79.6466e-65.0382e-63.4155e-73.6801e-823.198
ZCCA IVHHE4.7304e-61.3858e-61.1962e-68.2815e-73.0487e-76.9549e-66.7674e-63.8667e-74.2815e-823.198
ERBM IVEHZ4.1788e-65.6585e-72.4961e-77.6103e-83.8227e-81.1592e-57.6302e-76.3829e-81.1734e-833.8281
ERBM IVEHN4.3997e-69.0312e-75.1144e-71.6811e-78.9303e-88.5447e-62.0015e-61.2159e-72.6431e-833.8281
ERBM IVEHE4.6604e-67.4658e-73.9468e-78.4720e-84.7908e-81.3985e-51.5150e-68.5978e-81.7546e-833.8281
SARM GUEHZ1.1821e-61.9652e-71.1787e-74.9517e-81.9834e-82.0068e-69.7692e-72.6898e-84.5787e-940.1235
SARM GUEHN2.1121e-62.9299e-71.9926e-71.2728e-73.9075e-83.1837e-68.9941e-75.1426e-88.5691e-940.1235
SARM GUEHE1.7110e-61.7631e-71.3088e-74.6496e-82.5906e-82.1797e-61.0242e-63.1781e-84.4689e-940.1235
BDI IVHHZ2.3619e-63.4385e-71.9270e-79.0916e-83.8909e-84.7890e-69.1812e-75.2376e-87.3320e-940.7203
BDI IVHHN3.1168e-65.3521e-74.1947e-71.7678e-76.8872e-87.1173e-63.1545e-69.3946e-81.4674e-840.7203
BDI IVHHE3.2040e-65.4348e-73.7039e-71.0607e-75.4940e-87.8364e-62.2950e-69.1682e-81.4608e-840.7203
CARD GUHHZ1.5312e-62.2131e-71.2231e-73.4315e-82.2968e-83.6901e-65.4052e-73.3075e-85.4107e-947.8211
CARD GUHHN3.1720e-66.3847e-73.3450e-79.2840e-84.2225e-86.7796e-61.4697e-66.0780e-81.3269e-847.8211
CARD GUHHE2.4225e-65.2960e-73.3537e-78.5905e-85.0630e-88.4030e-61.1420e-67.5081e-81.3137e-847.8211
*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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