MANUAL Location - Area: Alpi Cozie , magnitude (ML): 0.4
2025-02-19 01:42:50 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-02-19 10:32:44

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Earthquake info - Manual location
Event - ID :250219014226
Magnitude (ML) :0.4 +/- 0.2
Origin Time :2025-02-19 01:42:50.766 (UTC)
Location : Latitude: 44.516 N, Longitude: 6.859 E
Area :Alpi Cozie
Depth (km) :6.48
Distances (km) : 11.3 --- Acceglio
14.5 --- Bellino
14.6 --- Argentera
16.0 --- Prazzo
17.9 --- Pontechianale
18.5 --- Elva
18.7 --- Casteldelfino
18.9 --- Canosio
19.7 --- Marmora
21.3 --- Stroppo
23.5 --- Pietraporzio
25.4 --- Macra
25.7 --- Celle di Macra
26.1 --- Sambuco
27.2 --- Sampeyre
30.4 --- Castelmagno
31.3 --- Crissolo
31.6 --- San Damiano Macra
31.8 --- Oncino
32.7 --- Ostana

Quality location estimate: Erh: 0.9 km, Erz: 1.1 km, Nf: 32, Gap: 97 °, Rms: 0.34


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 01:42:52.9100.00400.001.592025-02-19 01:42:53.7800.0240-0.750.108.4
PZZGU2025-02-19 01:42:55.7300.01200.400.962025-02-19 01:42:58.7240.06910.091.2821.9
VINDIV2025-02-19 01:42:57.5160.02000.011.552025-02-19 01:43:02.0320.0400-0.161.1134.7
OGAGFR2025-02-19 01:42:58.8170.02000.441.092025-02-19 01:43:03.8000.22860.031.1640.1
ISOFR2025-02-19 01:42:59.0470.02000.600.952025-02-19 01:43:03.6300.1635-0.041.2140.6
RRLGU2025-02-19 01:42:59.6500.02310.121.182025-02-19 01:43:05.6550.0400-0.101.2546.1
BHBGU2025-02-19 01:43:00.2190.02000.551.072025-02-19 01:43:05.7040.1504-0.230.9148.3
STVGU2025-02-19 01:42:59.4770.0200-0.051.472025-02-19 01:43:05.8630.28270.271.0848.4
ENRGU2025-02-19 01:43:01.2210.02000.531.082025-02-19 01:43:08.5790.04001.010.2155.2
MVIFFR2025-02-19 01:43:04.1960.1205-0.131.152025-02-19 01:43:13.6000.3648-0.460.6073.0
TURFFR2025-02-19 01:43:05.0430.02000.780.532025-02-19 01:43:13.9900.22160.221.1073.9
RSPGU2025-02-19 01:43:05.1800.10040.461.022025-02-19 01:43:14.4090.0400-0.171.0177.6
SAOFFR2025-02-19 01:43:06.3070.02000.860.392025-02-19 01:43:15.5960.0400-0.081.1181.1
GBOSGU2025-02-19 01:43:06.0100.02000.531.022025-02-19 01:43:16.0950.13030.450.9984.0
ESCAFR2025-02-19 01:43:07.1040.02000.550.982025-02-19 01:43:17.5850.0400-0.051.1086.8
MLIGIV2025-02-19 01:43:06.7260.1004-0.041.252025-02-19 01:43:17.4390.0400-0.500.4888.3


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
PZZ GUHH0.399.33e-221.993
OGAG FRHH0.231.20e-240.1320
ISO FRHH0.191.07e-240.6158
RRL GUHH0.165.30e-346.1353
BHB GUHH0.361.02e-248.342
STV GUHH0.408.31e-348.4129
ENR GUHH0.833.47e-255.2125
TURF FRHH0.445.53e-373.9145
RSP GUHH0.152.72e-377.624
SAOF FRHH0.404.08e-381.1136
ESCA FRHH0.798.64e-386.8151


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 GUHHZ9.2550e-61.0108e-64.6842e-79.2430e-85.5646e-82.3043e-51.6689e-61.1577e-72.2005e-821.993
PZZ GUHHN1.2588e-51.6074e-67.2925e-72.2088e-71.1403e-73.8312e-53.0879e-62.2003e-73.8143e-821.993
PZZ GUHHE6.8534e-61.4542e-67.4775e-71.8781e-71.0877e-72.1560e-53.5695e-61.7070e-73.2482e-821.993
OGAG FRHHZ3.9256e-78.4378e-87.0620e-84.0691e-81.5307e-89.5748e-73.8407e-71.9159e-82.6303e-940.1320
OGAG FRHHN5.1246e-78.9143e-88.3109e-83.5038e-81.6602e-81.0027e-64.4607e-72.5384e-82.2700e-940.1320
OGAG FRHHE4.4680e-71.0383e-79.9907e-85.6474e-82.2707e-86.7948e-74.6376e-73.0988e-83.0430e-940.1320
ISO FRHHZ1.3172e-61.8949e-79.2465e-82.6183e-81.2980e-82.9230e-63.6758e-72.0756e-83.9522e-940.6158
ISO FRHHN1.4492e-61.9790e-77.9112e-82.8304e-81.3903e-83.0904e-64.2495e-72.2418e-85.2942e-940.6158
ISO FRHHE1.6228e-62.1685e-79.9524e-83.2468e-81.8086e-84.1952e-64.9249e-73.0031e-85.0014e-940.6158
RRL GUHHZ4.6784e-75.8553e-83.5622e-81.7209e-87.6838e-99.4319e-71.5889e-71.2566e-81.5336e-946.1353
RRL GUHHN4.9000e-77.1747e-85.5643e-82.0034e-81.0929e-81.5485e-62.9467e-71.4370e-81.6865e-946.1353
RRL GUHHE4.8412e-76.4867e-85.3583e-82.3970e-89.8419e-91.3234e-62.4451e-71.2705e-81.9784e-946.1353
BHB GUHHZ1.5331e-62.2015e-71.2094e-73.4531e-81.6579e-86.8873e-63.6887e-72.3999e-84.9897e-948.342
BHB GUHHN1.0926e-61.5678e-71.0489e-73.3957e-81.5855e-84.1798e-64.9546e-72.0969e-83.8473e-948.342
BHB GUHHE1.1384e-61.4371e-78.8531e-83.8654e-81.5802e-82.8764e-63.6392e-72.5121e-83.7351e-948.342
STV GUHHZ1.4583e-61.7647e-77.5744e-82.4922e-81.5548e-83.1283e-65.6867e-72.6341e-83.7861e-948.4129
STV GUHHN1.5098e-61.9130e-76.3115e-82.2717e-81.1735e-84.2041e-62.7082e-71.7386e-83.5248e-948.4129
STV GUHHE1.3208e-61.5287e-77.4590e-82.4561e-81.3221e-83.4773e-63.0580e-72.0660e-83.5167e-948.4129
ENR GUHHZ5.4295e-64.2833e-71.0857e-74.4246e-82.9992e-88.4752e-64.3221e-75.0371e-88.1063e-955.2125
ENR GUHHN1.1343e-51.0415e-62.1759e-77.9621e-84.3308e-81.8661e-59.0713e-77.5586e-81.9635e-855.2125
ENR GUHHE1.4816e-51.3305e-61.9660e-76.9831e-83.8071e-81.0117e-56.9014e-79.2282e-82.2201e-855.2125
TURF FRHHZ3.6571e-75.6857e-83.6563e-82.6435e-81.9902e-88.7408e-71.4554e-72.6495e-81.8442e-973.9145
TURF FRHHN4.9662e-78.0630e-84.4522e-82.0950e-81.3699e-81.5651e-62.5252e-72.0231e-81.8124e-973.9145
TURF FRHHE3.4178e-76.0483e-84.6096e-82.7365e-81.8675e-81.2787e-62.6403e-72.5766e-81.9844e-973.9145
RSP GUHHZ1.6644e-72.4693e-81.4135e-85.6964e-93.3133e-94.1729e-76.8998e-84.4836e-96.7708e-1077.624
RSP GUHHN2.5259e-74.4032e-82.1805e-86.6603e-93.5502e-96.4857e-76.7155e-86.1008e-91.0200e-977.624
RSP GUHHE2.0277e-73.1286e-82.2382e-88.3402e-93.5615e-96.3936e-71.0888e-75.2279e-97.4613e-1077.624
SAOF FRHHZ1.7128e-74.0617e-83.7539e-81.9418e-81.2938e-85.4430e-72.4389e-71.5516e-81.6064e-981.1136
SAOF FRHHN2.2830e-73.9402e-82.6715e-82.0492e-81.5503e-84.9344e-71.2687e-71.8369e-81.7337e-981.1136
SAOF FRHHE2.6569e-74.7295e-83.3886e-82.2852e-82.0130e-88.0814e-72.1967e-72.7138e-81.5849e-981.1136
GBOS GUHHZ5.0775e-79.7911e-86.4875e-82.7166e-81.2395e-81.3593e-64.1635e-71.5039e-82.1304e-984.0111
GBOS GUHHN5.2533e-71.0709e-77.5323e-85.7280e-84.8009e-81.2276e-62.8258e-76.9173e-89.6678e-984.0111
GBOS GUHHE4.6599e-78.0142e-86.8208e-83.7463e-82.9309e-81.2798e-63.8064e-74.1634e-86.5978e-984.0111
ESCA FRHHZ4.0971e-77.3474e-85.4949e-82.1829e-81.3809e-87.5017e-72.9872e-72.1996e-82.1107e-986.8151
ESCA FRHHN4.4956e-79.2628e-85.7675e-82.2864e-81.4859e-81.5691e-62.4063e-71.8974e-82.2585e-986.8151
ESCA FRHHE5.3451e-71.0995e-77.6422e-82.7569e-81.9963e-81.2290e-64.5060e-72.8816e-83.3650e-986.8151
*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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