MANUAL Location - Area: Appennino modenese , magnitude (ML): 1.1
2025-07-05 05:29:00 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-07-05 08:31:59

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Earthquake info - Manual location
Event - ID :250705052738
Magnitude (ML) :1.1 +/- 0.2
Origin Time :2025-07-05 05:29:00.505 (UTC)
Location : Latitude: 44.251 N, Longitude: 10.986 E
Area :Appennino modenese
Depth (km) :9.55
Distances (km) : 3.5 --- Castel d Aiano
4.0 --- Montese
7.3 --- Gaggio Montano
10.5 --- Porretta Terme
10.6 --- Castel di Casio
10.7 --- Vergato
10.8 --- Zocca
12.2 --- Camugnano
12.3 --- Lizzano in Belvedere
13.4 --- Grizzana Morandi
15.3 --- Pavullo nel Frignano
16.0 --- Fanano
16.4 --- Sambuca Pistoiese
16.9 --- Granaglione
17.1 --- Savigno
17.2 --- Sestola
18.5 --- Castiglione dei Pepoli
19.7 --- Guiglia
20.1 --- San Benedetto Val di Sambro
20.2 --- Marzabotto

Quality location estimate: Erh: 1.9 km, Erz: 4.4 km, Nf: 10, Gap: 223 °, Rms: 0.09


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.
ZCCAIV2025-07-05 05:29:04.2000.00500.001.532025-07-05 05:29:08.5330.13031.370.0015.1
POPMGU2025-07-05 05:29:06.3230.2208-0.051.082025-07-05 05:29:10.8810.13030.021.2531.0
SARMGU2025-07-05 05:29:09.4300.0201-0.091.282025-07-05 05:29:16.2000.1263-0.061.1348.4
CARDGU2025-07-05 05:29:09.0500.1506-0.360.412025-07-05 05:29:16.2100.13740.140.9648.4
VLCMN2025-07-05 05:29:09.7800.02110.081.302025-07-05 05:29:16.6350.16040.071.0549.9


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.		 Dist. (km) Azimuth
ZCCA IVHH0.843.08e-115.1356
POPM GUHH0.761.37e-131.0219
SARM GUEH1.231.01e-148.4261
CARD GUHH1.136.59e-248.4238
VLC MNHH1.316.65e-249.9258


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 IVHHZ1.9136e-52.3265e-61.6216e-67.4622e-73.4306e-74.4992e-51.0194e-54.9977e-75.4070e-815.1356
ZCCA IVHHN1.8817e-52.4527e-62.2225e-61.2830e-65.9584e-74.2504e-51.8070e-58.1463e-77.9234e-815.1356
ZCCA IVHHE1.3857e-52.5532e-62.5040e-61.4720e-64.9710e-72.5995e-51.3732e-57.0265e-77.5727e-815.1356
POPM GUHHZ1.3563e-51.4574e-66.9996e-72.1471e-71.2168e-71.9173e-54.0648e-61.9633e-72.9453e-831.0219
POPM GUHHN1.5048e-51.9363e-61.3350e-63.7786e-71.7114e-73.0462e-59.1348e-62.6040e-74.5497e-831.0219
POPM GUHHE7.6538e-61.4746e-61.1012e-62.6346e-71.5251e-72.1812e-56.8681e-62.3609e-73.7116e-831.0219
SARM GUEHZ2.8508e-63.8544e-72.2778e-79.6576e-84.4966e-85.6749e-61.2063e-65.8548e-89.3943e-948.4261
SARM GUEHN3.9583e-61.1873e-67.0233e-75.4136e-72.1123e-71.0840e-52.7000e-62.8717e-73.7412e-848.4261
SARM GUEHE3.2820e-66.0140e-74.5679e-73.0539e-71.1162e-77.6019e-63.4969e-61.4773e-71.8932e-848.4261
CARD GUHHZ4.7441e-66.8751e-71.9125e-75.9683e-83.2470e-82.0256e-58.2219e-75.7834e-81.4327e-848.4238
CARD GUHHN1.2197e-51.3274e-63.9708e-71.0712e-76.8060e-82.3338e-51.3442e-61.3781e-73.2446e-848.4238
CARD GUHHE1.1235e-51.5281e-64.6785e-71.2044e-77.5199e-85.5054e-51.5472e-61.4045e-73.2583e-848.4238
VLC MNHHZ4.7632e-65.5297e-72.8647e-71.0153e-74.3094e-85.7697e-61.6672e-65.4659e-89.1434e-949.9258
VLC MNHHN3.0334e-66.7659e-73.8973e-72.8298e-71.0945e-78.6250e-61.4499e-61.1581e-71.8218e-849.9258
VLC MNHHE2.9649e-66.4409e-74.2111e-71.2279e-76.5734e-89.5206e-61.5381e-69.8035e-81.5435e-849.9258
*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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