MANUAL Location - Area: Alpi Cozie , magnitude (ML): 0.6
2025-02-19 22:49:01 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-02-20 09:56:21

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Earthquake info - Manual location
Event - ID :250219224836
Magnitude (ML) :0.6 +/- 0.2
Origin Time :2025-02-19 22:49:01.123 (UTC)
Location : Latitude: 44.514 N, Longitude: 6.853 E
Area :Alpi Cozie
Depth (km) :3.57
Distances (km) : 11.6 --- Acceglio
14.6 --- Argentera
15.0 --- Bellino
16.3 --- Prazzo
18.4 --- Pontechianale
18.9 --- Elva
19.1 --- Casteldelfino
19.2 --- Canosio
20.0 --- Marmora
21.7 --- Stroppo
23.6 --- Pietraporzio
25.8 --- Macra
26.1 --- Celle di Macra
26.2 --- Sambuco
27.6 --- Sampeyre
30.7 --- Castelmagno
31.7 --- Crissolo
32.0 --- San Damiano Macra
32.3 --- Oncino
33.2 --- Ostana

Quality location estimate: Erh: 1.2 km, Erz: 0.9 km, Nf: 26, Gap: 99 °, Rms: 0.23


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.
SURFFR2025-02-19 22:49:02.8500.0090-0.011.722025-02-19 22:49:03.5790.0400-0.600.386.1
PZZGU2025-02-19 22:49:05.8100.00700.111.572025-02-19 22:49:08.3700.0461-0.670.3621.4
VINDIV2025-02-19 22:49:07.7160.0200-0.270.642025-02-19 22:49:12.9310.04000.101.5534.4
OGAGFR2025-02-19 22:49:08.9850.02000.141.452025-02-19 22:49:14.3400.04000.041.5939.6
ISOFR2025-02-19 22:49:09.4310.02000.520.412025-02-19 22:49:14.2800.44890.010.9440.1
RRLGU2025-02-19 22:49:10.0110.0200-0.041.632025-02-19 22:49:16.2670.1002-0.031.4345.9
BHBGU2025-02-19 22:49:10.2600.0211-0.041.622025-02-19 22:49:15.7190.1273-1.030.0948.4
ENRGU2025-02-19 22:49:11.6230.02000.350.612025-02-19 22:49:19.2750.04000.910.1455.1
MVIFFR2025-02-19 22:49:15.4600.02000.590.422025-02-19 22:49:24.6900.3618-0.100.9772.7
TURFFR2025-02-19 22:49:15.5400.03610.710.302025-02-19 22:49:24.4190.0400-0.111.2273.8
RSPGU2025-02-19 22:49:15.5300.03610.191.232025-02-19 22:49:25.2310.0400-0.161.1377.7
SAOFFR2025-02-19 22:49:15.9170.0200-0.121.312025-02-19 22:49:25.8900.0400-0.580.4981.0
GBOSGU2025-02-19 22:49:16.1300.02000.031.552025-02-19 22:49:26.4950.04000.001.2684.1


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
PZZ GUHH0.379.27e-221.492
OGAG FRHH0.361.66e-239.6321
ISO FRHH0.331.52e-240.1157
RRL GUHH0.681.75e-245.9354
BHB GUHH0.994.40e-248.442
ENR GUHH0.702.59e-255.1125
TURF FRHH0.648.81e-373.8144
RSP GUHH0.668.83e-377.725
SAOF FRHH0.697.90e-381.0136
GBOS GUHH0.977.18e-384.1111


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.
(°)
PZZ GUHHZ7.5331e-61.2067e-67.4874e-72.5938e-71.4080e-72.7719e-53.8068e-61.9675e-72.7174e-821.492
PZZ GUHHN8.0704e-61.5846e-69.9053e-72.6216e-71.2000e-74.0426e-54.6585e-61.9609e-73.8030e-821.492
PZZ GUHHE8.3977e-61.5142e-61.0169e-63.6973e-71.4732e-72.1501e-55.4532e-62.1283e-73.5632e-821.492
OGAG FRHHZ3.0650e-71.0732e-71.1134e-77.6399e-83.4314e-89.7566e-75.5307e-75.1528e-83.7926e-939.6321
OGAG FRHHN4.3158e-71.0614e-71.0732e-78.3984e-88.1192e-81.1664e-64.7635e-71.0993e-71.1986e-839.6321
OGAG FRHHE4.5790e-71.3065e-71.4648e-71.0472e-74.4581e-88.7800e-78.6647e-75.3138e-84.7686e-939.6321
ISO FRHHZ1.0812e-62.5078e-71.4672e-75.3119e-82.5988e-82.7658e-67.3121e-73.1807e-86.3837e-940.1157
ISO FRHHN9.0522e-71.4332e-79.0559e-83.2005e-81.4613e-82.1562e-63.9081e-71.8966e-83.4008e-940.1157
ISO FRHHE1.0114e-61.9796e-71.4482e-74.6100e-82.1251e-83.0064e-61.0855e-62.8871e-85.0196e-940.1157
RRL GUHHZ4.8988e-79.7506e-88.9757e-83.5272e-81.8393e-81.8362e-67.7416e-72.9608e-83.2817e-945.9354
RRL GUHHN6.7659e-72.0964e-71.6269e-75.3541e-82.3044e-81.8937e-61.2028e-63.4929e-85.3473e-945.9354
RRL GUHHE6.0403e-71.5491e-71.1536e-75.3530e-82.0213e-82.7993e-67.3426e-72.6392e-83.6514e-945.9354
BHB GUHHZ1.5546e-63.1384e-72.7136e-77.4576e-83.5074e-86.7673e-61.4521e-64.9431e-88.1448e-948.442
BHB GUHHN1.3929e-65.0183e-73.3976e-71.2526e-75.8093e-83.0138e-62.0581e-68.1601e-81.3238e-848.442
BHB GUHHE1.2388e-61.9541e-71.8834e-78.6520e-83.6349e-84.4015e-61.2006e-65.1985e-86.3215e-948.442
ENR GUHHZ1.8685e-62.5473e-71.4223e-75.7010e-83.5372e-83.8474e-66.3841e-75.4924e-86.2212e-955.1125
ENR GUHHN6.2009e-66.1636e-72.2035e-77.2849e-84.4145e-88.0146e-61.1685e-68.5638e-81.3027e-855.1125
ENR GUHHE6.6561e-67.1676e-72.2570e-77.3943e-83.7388e-89.1227e-68.2131e-76.4189e-81.3873e-855.1125
TURF FRHHZ2.1943e-75.7537e-84.9648e-83.4145e-82.1671e-85.7524e-73.1353e-72.6774e-82.1748e-973.8144
TURF FRHHN3.9450e-79.8141e-87.1813e-83.3030e-82.5050e-81.2673e-63.6198e-73.1950e-83.1948e-973.8144
TURF FRHHE2.6818e-76.4059e-85.9856e-84.6368e-82.8942e-87.2470e-72.8168e-74.3814e-82.3990e-973.8144
RSP GUHHZ3.0722e-75.1274e-84.1167e-81.8701e-81.0309e-85.5186e-72.8173e-71.4198e-83.6315e-977.725
RSP GUHHN4.0271e-79.0045e-85.9394e-81.6968e-87.8823e-91.2365e-62.3287e-71.2203e-82.1878e-977.725
RSP GUHHE5.2057e-71.2020e-78.4075e-82.0381e-81.0383e-81.6354e-62.8254e-71.5251e-82.6151e-977.725
SAOF FRHHZ1.6079e-76.1608e-86.3860e-83.8014e-81.9414e-83.9168e-75.4169e-72.9242e-82.2190e-981.0136
SAOF FRHHN1.6616e-74.9073e-85.3635e-83.5075e-81.8688e-82.8767e-74.7289e-72.2244e-81.9305e-981.0136
SAOF FRHHE2.1682e-76.1140e-86.5300e-83.4368e-82.1562e-84.6887e-76.0368e-73.1686e-82.4225e-981.0136
GBOS GUHHZ4.0041e-79.4672e-87.6808e-82.9286e-81.4724e-81.3552e-63.9772e-72.2647e-82.6164e-984.1111
GBOS GUHHN3.9829e-76.9655e-85.9092e-83.6492e-82.0878e-81.0772e-63.1076e-73.0745e-82.0894e-984.1111
GBOS GUHHE3.2182e-78.1354e-86.8816e-83.2899e-81.3236e-81.3027e-65.3073e-71.9231e-82.2224e-984.1111
*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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