MANUAL Location - Area: Alpi Cozie , magnitude (ML): 0.4
2025-02-13 22:50:17 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-02-14 10:06:12

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Earthquake info - Manual location
Event - ID :250213224956
Magnitude (ML) :0.4 +/- 0.2
Origin Time :2025-02-13 22:50:17.55 (UTC)
Location : Latitude: 44.633 N, Longitude: 6.764 E
Area :Alpi Cozie
Depth (km) :2.89
Distances (km) : 20.8 --- Bellino
20.9 --- Pontechianale
24.6 --- Casteldelfino
25.0 --- Acceglio
27.7 --- Elva
28.3 --- Prazzo
29.6 --- Argentera
31.9 --- Canosio
31.9 --- Stroppo
32.0 --- Crissolo
32.5 --- Marmora
34.1 --- Oncino
34.1 --- Claviere
34.2 --- Bobbio Pellice
34.2 --- Sampeyre
34.2 --- Ostana
35.1 --- Sauze di Cesana
35.6 --- Cesana Torinese
35.9 --- Macra
36.3 --- Prali

Quality location estimate: Erh: 0.7 km, Erz: 1.3 km, Nf: 26, Gap: 146 °, Rms: 0.17


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.
SURFFR2025-02-13 22:50:21.4000.01000.021.732025-02-13 22:50:23.7950.0521-0.400.5617.6
OGAGFR2025-02-13 22:50:22.6100.0140-0.041.702025-02-13 22:50:26.0800.0762-0.111.4125.0
PZZGU2025-02-13 22:50:23.9600.1135-0.011.482025-02-13 22:50:27.7900.0922-0.820.1931.5
RRLGU2025-02-13 22:50:24.2410.02000.071.482025-02-13 22:50:28.5400.1695-0.171.1532.5
BHBGU2025-02-13 22:50:26.5800.02910.091.352025-02-13 22:50:32.5440.1002-0.111.2845.5
VINDIV2025-02-13 22:50:26.9040.0200-0.011.622025-02-13 22:50:33.1150.0400-0.420.6348.6
ISOFR2025-02-13 22:50:28.0370.02000.031.522025-02-13 22:50:34.3730.0400-0.850.2055.0
STVGU2025-02-13 22:50:28.7080.0200-0.191.152025-02-13 22:50:36.8230.3708-0.040.8562.1
ENRGU2025-02-13 22:50:30.2830.02000.310.412025-02-13 22:50:38.6000.2056-0.111.0468.7
RSPGU2025-02-13 22:50:30.4910.0200-0.041.482025-02-13 22:50:39.3440.0400-0.241.0269.7
TURFFR2025-02-13 22:50:34.1010.02000.290.562025-02-13 22:50:44.2540.0400-1.060.1488.6
GBOSGU2025-02-13 22:50:34.2430.0200-0.201.132025-02-13 22:50:45.9110.0400-0.310.8795.9
LSDGU2025-02-13 22:50:35.9330.02000.900.012025-02-13 22:50:47.1520.0400-0.011.0396.5


Local magnitude (ML) calculation results
Station Net Channels Stat. Mag. Wood-And.
Ampl.
Dist. (km) Azimuth
OGAG FRHH0.142.44e-225.0314
PZZ GUHH0.607.60e-231.5117
RRL GUHH0.231.23e-232.54
BHB GUHH0.309.97e-345.560
ISO FRHH0.266.83e-355.0155
STV GUHH0.761.13e-262.1134
TURF FRHH0.615.38e-388.6145
LSD GUHH0.503.41e-396.517


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.
(°)
OGAG FRHHZ1.5039e-62.4386e-71.7281e-78.3836e-84.3562e-85.0155e-67.1328e-75.8759e-87.2791e-925.0314
OGAG FRHHN1.4115e-62.5925e-71.7551e-77.5183e-83.1228e-83.9855e-61.1097e-64.5510e-86.0800e-925.0314
OGAG FRHHE1.5105e-62.8356e-72.2194e-71.3116e-74.3874e-82.8564e-68.6747e-74.8400e-86.4270e-925.0314
PZZ GUHHZ7.1293e-61.0611e-65.0509e-71.3341e-77.6796e-81.8577e-52.9857e-61.2319e-72.0745e-831.5117
PZZ GUHHN8.9080e-61.3375e-67.5613e-72.2573e-71.5951e-72.2783e-52.7399e-62.4824e-73.0035e-831.5117
PZZ GUHHE7.5255e-69.4827e-75.9018e-71.4550e-77.5374e-81.2653e-53.2640e-61.2231e-71.9860e-831.5117
RRL GUHHZ1.0870e-61.2954e-75.7100e-81.8803e-81.0476e-81.9987e-64.3880e-71.5665e-82.9217e-932.54
RRL GUHHN1.2100e-61.8442e-71.1770e-73.5672e-81.6215e-84.0052e-66.9765e-72.4152e-83.8481e-932.54
RRL GUHHE1.4894e-62.3317e-71.1338e-73.4272e-81.6252e-83.3988e-63.4735e-72.5767e-85.5918e-932.54
BHB GUHHZ1.8583e-62.2553e-71.0585e-74.0989e-83.7735e-84.3803e-63.0593e-79.5750e-85.8931e-945.560
BHB GUHHN1.4129e-61.6991e-78.3990e-82.3324e-81.5933e-83.1696e-63.7379e-73.0096e-84.0198e-945.560
BHB GUHHE1.5200e-61.6972e-79.0102e-83.4921e-82.1169e-82.3238e-62.7523e-74.3261e-83.8072e-945.560
ISO FRHHZ9.5201e-71.2717e-75.9997e-81.4258e-88.7784e-91.5578e-61.7796e-71.2846e-82.7454e-955.0155
ISO FRHHN1.1560e-61.1368e-74.9892e-81.3925e-88.5273e-91.8535e-62.0326e-71.4130e-82.0938e-955.0155
ISO FRHHE1.3304e-61.2627e-75.3900e-81.9004e-89.0117e-92.0957e-62.3736e-71.4481e-82.9404e-955.0155
STV GUHHZ1.2040e-61.7353e-79.6393e-82.4749e-81.2376e-82.2044e-65.0752e-71.9684e-83.7412e-962.1134
STV GUHHN1.5803e-61.9210e-78.6567e-83.0922e-82.8015e-83.2529e-62.7208e-74.3011e-86.5142e-962.1134
STV GUHHE1.3119e-62.0234e-76.5938e-81.9561e-81.0558e-82.6680e-62.0447e-71.8840e-84.2186e-962.1134
ENR GUHHZ4.3278e-65.5437e-71.7783e-74.4466e-83.0055e-87.2710e-67.9181e-74.7422e-81.0912e-868.7131
ENR GUHHN1.5845e-51.6909e-63.1157e-79.1232e-85.1467e-81.7893e-51.0613e-61.2613e-73.1715e-868.7131
ENR GUHHE1.7758e-51.6777e-63.1318e-79.1451e-84.6852e-81.5862e-51.3515e-61.0597e-72.7968e-868.7131
RSP GUHHZ2.0319e-72.2847e-81.1745e-85.9537e-92.7987e-94.7290e-74.7683e-84.0616e-96.1254e-1069.734
RSP GUHHN2.3210e-73.1760e-81.8266e-86.0946e-93.0615e-95.5722e-75.5071e-84.7329e-96.4178e-1069.734
RSP GUHHE3.2432e-74.2099e-81.7932e-85.1480e-93.2185e-99.6297e-77.3548e-85.5306e-91.1609e-969.734
TURF FRHHZ2.5906e-74.7685e-83.5529e-81.6315e-81.2511e-87.4648e-71.9709e-72.0820e-81.5214e-988.6145
TURF FRHHN5.8211e-79.1760e-85.5749e-81.9871e-81.2212e-81.9914e-62.2664e-71.5480e-82.2145e-988.6145
TURF FRHHE3.1662e-76.4111e-84.5700e-82.0226e-81.3007e-81.1771e-63.7315e-71.9874e-81.8177e-988.6145
GBOS GUHHZ5.0469e-78.4645e-86.4340e-82.9747e-82.7938e-81.1435e-62.8148e-73.7467e-84.3477e-995.9117
GBOS GUHHN6.0484e-71.1566e-78.9259e-81.0391e-77.2511e-89.9552e-74.0612e-79.6725e-88.8000e-995.9117
GBOS GUHHE4.0115e-77.6352e-86.2167e-82.4682e-81.0486e-81.1828e-62.7996e-71.5943e-81.7006e-995.9117
LSD GUHHZ1.7349e-72.6352e-81.9836e-86.7308e-94.0001e-93.7491e-71.2233e-75.8873e-98.8240e-1096.517
LSD GUHHN2.8153e-73.6576e-82.0182e-88.8104e-94.7068e-95.1026e-71.0056e-76.3654e-97.2163e-1096.517
LSD GUHHE3.1083e-74.6480e-83.0583e-89.4937e-96.6675e-95.3735e-72.4568e-79.0600e-91.3018e-996.517
*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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