MANUAL Location - Area: Casentino , magnitude (ML): 2.2
2025-07-19 22:39:18 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-07-21 07:38:41

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Earthquake info - Manual location
Event - ID :250719223801
Magnitude (ML) :2.2 +/- 0.1
Origin Time :2025-07-19 22:39:18.637 (UTC)
Location : Latitude: 43.796 N, Longitude: 11.953 E
Area :Casentino
Depth (km) :13.74
Distances (km) : 4.2 --- Verghereto
7.5 --- Bagno di Romagna
11.1 --- Chiusi della Verna
15.4 --- Bibbiena
15.5 --- Pieve Santo Stefano
15.9 --- Chitignano
16.2 --- Casteldelci
16.9 --- Poppi
17.2 --- Santa Sofia
17.3 --- Caprese Michelangelo
18.4 --- Castel Focognano
18.6 --- Pratovecchio
19.6 --- Stia
20.6 --- Sarsina
20.9 --- Castel San Niccolo
20.9 --- Ortignano Raggiolo
21.2 --- Badia Tedalda
21.9 --- Sant Agata Feltria
22.7 --- Galeata
23.6 --- Civitella di Romagna

Quality location estimate: Erh: 2.1 km, Erz: 1.8 km, Nf: 16, Gap: 252 °, 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.
RUFIIV2025-07-19 22:39:26.0200.0190-0.011.692025-07-19 22:39:31.8600.11630.041.5138.4
CSNTIV2025-07-19 22:39:31.0100.03810.111.512025-07-19 22:39:40.6120.10021.020.3065.7
OSSCIV2025-07-19 22:39:30.9610.0200-0.121.322025-07-19 22:39:40.7170.04000.800.4666.0
IMOLIV2025-07-19 22:39:31.4900.0381-0.071.492025-07-19 22:39:42.3350.04000.191.2466.3
MTRZIV2025-07-19 22:39:32.8040.02000.780.422025-07-19 22:39:44.7120.04001.780.0272.7
POPMGU2025-07-19 22:39:36.5000.06530.061.472025-07-19 22:39:49.6490.6269-0.030.75100.7
MAIMGU2025-07-19 22:39:39.3900.06020.350.952025-07-19 22:39:53.5620.0400-0.320.75118.7
CARDGU2025-07-19 22:39:39.5600.06130.301.062025-07-19 22:39:54.0920.0400-0.081.05121.4


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.		 Dist. (km) Azimuth
OSSC IVHH2.305.09e-166.0242
MTRZ IVHH2.132.79e-172.7324
POPM GUHH2.112.57e-1100.7287
MAIM GUHH2.178.67e-2118.7277
CARD GUHH2.261.14e-1121.4283


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.
(°)
OSSC IVHHZ1.1103e-52.6575e-62.7839e-61.6321e-67.9770e-73.0575e-51.4683e-57.7715e-79.0204e-866.0242
OSSC IVHHN1.5720e-54.3073e-64.2879e-62.6457e-61.1955e-63.2509e-51.8116e-51.6626e-61.5354e-766.0242
OSSC IVHHE1.3152e-54.1167e-64.4028e-62.3445e-67.7084e-75.5329e-53.2317e-59.3818e-71.1997e-766.0242
MTRZ IVHHZ2.5054e-61.3686e-61.2210e-61.0918e-64.5906e-74.9635e-65.5749e-65.0224e-74.9959e-872.7324
MTRZ IVHHN4.5114e-61.9406e-62.3403e-61.6335e-67.5204e-76.7223e-61.3405e-58.2094e-76.4727e-872.7324
MTRZ IVHHE1.7599e-68.4151e-78.2314e-76.5716e-72.5344e-72.4062e-65.3504e-62.5254e-73.0087e-872.7324
POPM GUHHZ2.7012e-67.5066e-78.6755e-75.2610e-72.0989e-77.5412e-67.5937e-62.9815e-72.6416e-8100.7287
POPM GUHHN1.1196e-53.6377e-62.3849e-68.3210e-73.6891e-73.3890e-51.3694e-55.3106e-78.6415e-8100.7287
POPM GUHHE5.4608e-61.9275e-61.6284e-65.9129e-73.1865e-71.4300e-51.0867e-54.5036e-75.3657e-8100.7287
MAIM GUHHZ1.3778e-64.9958e-75.0208e-72.2383e-79.8982e-83.5473e-63.0748e-61.3995e-71.6984e-8118.7277
MAIM GUHHN1.8737e-66.5380e-75.7632e-74.1520e-71.7471e-77.1573e-63.1662e-61.8960e-72.3290e-8118.7277
MAIM GUHHE1.9737e-65.6466e-75.7806e-73.2433e-72.3252e-76.9683e-62.8258e-62.8001e-72.5088e-8118.7277
CARD GUHHZ1.5309e-64.3720e-74.1740e-72.3681e-78.6490e-85.0701e-62.2039e-61.1462e-71.1048e-8121.4283
CARD GUHHN3.9592e-61.0665e-69.2952e-74.3492e-71.9068e-71.0705e-55.9588e-62.7141e-72.9728e-8121.4283
CARD GUHHE3.3043e-67.6615e-78.4126e-73.7508e-71.2826e-71.1748e-55.9337e-61.5520e-72.3471e-8121.4283
*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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