RSNI - Manually revised location

MANUAL Location - Area: Alpi Cozie , magnitude (M_L): 0.7
2025-02-12 09:07:02 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-02-12 09:45:47

Earthquake info - Manual location

Event - ID :	250212090608
Magnitude (M_L) :	0.7 +/- 0.2
Origin Time :	2025-02-12 09:07:02.434 (UTC)
Location :	Latitude: 44.503 N, Longitude: 6.900 E
Area :	Alpi Cozie
Depth (km) :	2.77
Distances (km) :	7.7 --- Acceglio 12.2 --- Argentera 12.4 --- Prazzo 12.7 --- Bellino 15.3 --- Canosio 15.6 --- Elva 16.1 --- Marmora 16.6 --- Casteldelfino 16.7 --- Pontechianale 17.9 --- Stroppo 20.5 --- Pietraporzio 22.1 --- Macra 22.2 --- Celle di Macra 22.9 --- Sambuco 24.4 --- Sampeyre 26.8 --- Castelmagno 28.2 --- San Damiano Macra 29.9 --- Crissolo 30.0 --- Oncino 30.6 --- Vinadio

Quality location estimate: Erh: 0.9 km, Erz: 0.9 km, Nf: 32, Gap: 86 °, 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.
SURF	FR	2025-02-12 09:07:04.900	0.006	0	0.39	0.79	2025-02-12 09:07:06.010	0.025	0	-0.07	1.59	7.9
PZZ	GU	2025-02-12 09:07:06.770	0.011	0	0.39	0.79	2025-02-12 09:07:09.179	0.054	1	-0.09	1.48	17.6
VIND	IV	2025-02-12 09:07:08.684	0.020	0	0.01	1.78	2025-02-12 09:07:13.011	0.040	0	-0.09	1.44	30.8
ISO	FR	2025-02-12 09:07:10.520	0.022	1	0.73	0.21	2025-02-12 09:07:14.810	0.113	3	-0.04	1.42	37.6
OGAG	FR	2025-02-12 09:07:11.654	0.020	0	0.89	0.11	2025-02-12 09:07:16.590	0.040	0	-0.06	1.42	42.8
STV	GU	2025-02-12 09:07:10.902	0.020	0	0.08	1.63	2025-02-12 09:07:16.740	0.134	4	0.08	1.39	44.5
BHB	GU	2025-02-12 09:07:11.512	0.020	0	0.10	1.55	2025-02-12 09:07:17.110	0.370	8	-0.59	0.45	46.8
RRL	GU	2025-02-12 09:07:11.746	0.020	0	0.03	1.71	2025-02-12 09:07:18.420	0.143	4	0.22	1.19	47.5
ENR	GU	2025-02-12 09:07:12.150	0.029	1	0.15	1.39	2025-02-12 09:07:18.988	0.100	2	0.31	1.02	51.3
MVIF	FR	2025-02-12 09:07:17.164	0.020	0	1.34	0.00	2025-02-12 09:07:25.679	0.040	0	0.20	1.20	70.4
TURF	FR	2025-02-12 09:07:16.300	0.039	1	0.63	0.36	2025-02-12 09:07:24.689	0.264	7	-0.36	0.70	70.6
RSP	GU	2025-02-12 09:07:16.619	0.020	0	0.02	1.55	2025-02-12 09:07:26.458	0.040	0	-0.15	1.07	77.3
SAOF	FR	2025-02-12 09:07:15.703	0.020	0	-1.12	0.10	2025-02-12 09:07:27.067	0.040	0	0.17	1.22	77.6
GBOS	GU	2025-02-12 09:07:16.945	0.020	0	0.12	1.44	2025-02-12 09:07:26.580	0.405	8	-0.21	0.80	80.2
MLIG	IV	2025-02-12 09:07:18.489	0.020	0	0.38	0.85	2025-02-12 09:07:28.652	0.040	0	-0.46	0.49	84.7
MGRO	GU	2025-02-12 09:07:18.392	0.020	0	-0.28	0.71	2025-02-12 09:07:29.066	0.040	0	-1.05	0.13	88.7

Local magnitude (M_L) calculation results

Station	Net	Channels	Stat. Mag.	Wood-And. Ampl.	Dist. (km)	Azimuth
PZZ	GU	HH	0.88	4.31e-1	17.6	89
OGAG	FR	HH	0.55	2.23e-2	42.8	318
STV	GU	HH	0.69	1.91e-2	44.5	130
BHB	GU	HH	0.68	2.30e-2	46.8	38
RRL	GU	HH	0.72	1.80e-2	47.5	349
ENR	GU	HH	1.19	9.36e-2	51.3	126
TURF	FR	HH	0.67	1.03e-2	70.6	146
RSP	GU	HH	0.35	4.31e-3	77.3	22
SAOF	FR	HH	0.81	1.15e-2	77.6	138
MGRO	GU	HH	0.72	7.01e-3	88.7	125

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

HHZ

2.5413e-5

4.7585e-6

2.9142e-6

6.5386e-7

3.8386e-7

7.8276e-5

1.2176e-5

6.0593e-7

1.1646e-7

17.6

PZZ

HHN

3.7239e-5

4.9094e-6

3.0889e-6

7.8759e-7

4.7981e-7

6.1863e-5

1.3663e-5

8.1192e-7

1.4146e-7

17.6

PZZ

HHE

2.7929e-5

5.9312e-6

4.0425e-6

9.0657e-7

4.4990e-7

6.6102e-5

2.0927e-5

7.2609e-7

1.4407e-7

17.6

ISO

HHZ

1.8193e-6

2.3790e-7

1.1138e-7

2.9733e-8

1.3946e-8

3.1200e-6

4.2613e-7

2.2778e-8

5.6556e-9

37.6

161

ISO

HHN

2.0885e-6

2.2556e-7

8.0439e-8

2.0644e-8

1.4433e-8

3.4563e-6

2.9190e-7

2.5614e-8

4.8707e-9

37.6

161

ISO

HHE

2.7146e-6

2.3757e-7

1.0940e-7

3.1462e-8

1.5564e-8

3.6363e-6

4.2564e-7

2.6324e-8

5.2741e-9

37.6

161

OGAG

HHZ

6.7124e-7

1.4464e-7

1.4094e-7

5.9395e-8

3.2019e-8

3.0070e-6

6.2556e-7

4.5127e-8

4.2033e-9

42.8

318

OGAG

HHN

8.0488e-7

2.0695e-7

1.5769e-7

6.4332e-8

3.1364e-8

2.0018e-6

8.2384e-7

5.0406e-8

5.4656e-9

42.8

318

OGAG

HHE

7.5712e-7

1.7576e-7

1.8457e-7

1.3651e-7

8.9139e-8

1.6692e-6

1.2507e-6

1.3478e-7

1.1820e-8

42.8

318

STV

HHZ

3.0136e-6

3.6463e-7

1.6793e-7

5.4292e-8

2.4791e-8

4.6633e-6

9.6307e-7

4.3725e-8

9.3861e-9

44.5

130

STV

HHN

3.9423e-6

4.7240e-7

1.2564e-7

4.1681e-8

2.6020e-8

7.5367e-6

4.8411e-7

3.7927e-8

8.4138e-9

44.5

130

STV

HHE

3.5251e-6

3.8315e-7

1.7156e-7

3.9765e-8

2.3583e-8

7.4704e-6

7.0436e-7

3.7010e-8

9.2127e-9

44.5

130

BHB

HHZ

3.0008e-6

4.2072e-7

2.1389e-7

6.3060e-8

3.6777e-8

1.1103e-5

7.0624e-7

6.4310e-8

1.3366e-8

46.8

BHB

HHN

2.3574e-6

3.4525e-7

2.0544e-7

6.2623e-8

3.0329e-8

6.0448e-6

9.4956e-7

4.9537e-8

9.2283e-9

46.8

BHB

HHE

2.6150e-6

2.9293e-7

1.6273e-7

5.0088e-8

2.0879e-8

6.5347e-6

8.1621e-7

3.6031e-8

7.1401e-9

46.8

RRL

HHZ

1.0101e-6

1.5926e-7

8.3708e-8

4.2925e-8

1.9957e-8

3.1230e-6

2.7752e-7

2.5092e-8

4.2025e-9

47.5

349

RRL

HHN

1.2225e-6

2.3468e-7

1.8090e-7

5.4576e-8

2.2259e-8

5.1548e-6

8.8668e-7

3.1649e-8

5.7206e-9

47.5

349

RRL

HHE

1.2553e-6

2.2656e-7

1.6700e-7

5.5487e-8

2.5760e-8

5.4089e-6

7.4398e-7

3.8158e-8

5.8541e-9

47.5

349

ENR

HHZ

9.7138e-6

8.9796e-7

2.9732e-7

1.1285e-7

1.0348e-7

1.1947e-5

1.2541e-6

1.2987e-7

2.3712e-8

51.3

126

ENR

HHN

2.7241e-5

2.7471e-6

6.4022e-7

1.9572e-7

1.0427e-7

2.7928e-5

2.8989e-6

1.9702e-7

6.4451e-8

51.3

126

ENR

HHE

2.7016e-5

2.2272e-6

5.6920e-7

1.3886e-7

8.3303e-8

3.2948e-5

3.0931e-6

1.8632e-7

4.5367e-8

51.3

126

TURF

HHZ

8.4989e-7

8.8910e-8

7.7369e-8

3.1365e-8

1.9498e-8

2.0612e-6

4.0529e-7

2.0997e-8

2.4187e-9

70.6

146

TURF

HHN

8.9988e-7

1.6392e-7

8.8097e-8

2.8589e-8

2.1910e-8

2.7326e-6

4.8350e-7

2.9218e-8

3.4647e-9

70.6

146

TURF

HHE

6.4205e-7

1.1772e-7

1.0108e-7

4.8103e-8

2.0787e-8

1.6380e-6

4.7392e-7

2.9052e-8

2.9357e-9

70.6

146

RSP

HHZ

4.5435e-7

5.4329e-8

3.7753e-8

1.4727e-8

7.1321e-9

6.6758e-7

2.9154e-7

1.0459e-8

1.2605e-9

77.3

RSP

HHN

3.8407e-7

6.8468e-8

4.2110e-8

1.2867e-8

6.4739e-9

1.3303e-6

1.6747e-7

1.0484e-8

1.6283e-9

77.3

RSP

HHE

4.0619e-7

6.0149e-8

4.7166e-8

1.8425e-8

7.8040e-9

1.6195e-6

2.4134e-7

1.0393e-8

1.5499e-9

77.3

SAOF

HHZ

3.5729e-7

7.6939e-8

6.4320e-8

4.1224e-8

2.1989e-8

1.2151e-6

4.2665e-7

3.4167e-8

2.1513e-9

77.6

138

SAOF

HHN

4.5711e-7

1.0405e-7

5.3555e-8

4.8270e-8

4.2997e-8

1.1541e-6

2.2973e-7

6.2742e-8

1.4027e-8

77.6

138

SAOF

HHE

5.2037e-7

1.1460e-7

6.7634e-8

4.6460e-8

4.6434e-8

1.1332e-6

5.4639e-7

6.4258e-8

1.0878e-8

77.6

138

GBOS

HHZ

1.1151e-6

2.6030e-7

2.3068e-7

1.0047e-7

4.5753e-8

3.5167e-6

1.4520e-6

5.3693e-8

7.3021e-9

80.2

111

GBOS

HHN

7.9581e-7

1.9182e-7

1.2564e-7

5.2753e-8

2.1101e-8

3.1857e-6

4.0000e-7

2.6751e-8

4.6147e-9

80.2

111

GBOS

HHE

1.2320e-6

2.8628e-7

2.3552e-7

1.0922e-7

4.9135e-8

4.2744e-6

1.5185e-6

6.4611e-8

8.0482e-9

80.2

111

MGRO

HHZ

3.1526e-7

5.1621e-8

4.1359e-8

2.7804e-8

1.3628e-8

8.8965e-7

1.6808e-7

1.9221e-8

2.1087e-9

88.7

125

MGRO

HHN

4.0529e-7

7.6603e-8

6.2554e-8

3.5522e-8

1.6237e-8

1.3320e-6

3.3543e-7

2.6911e-8

3.0100e-9

88.7

125

MGRO

HHE

5.1421e-7

8.6263e-8

6.0982e-8

3.1668e-8

1.7913e-8

1.2559e-6

3.2862e-7

2.1870e-8

1.9618e-9

88.7

125

*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)

MANUAL Location - Area: Alpi Cozie , magnitude (ML): 0.7 2025-02-12 09:07:02 (UTC)

MANUAL Location - Area: Alpi Cozie , magnitude (M_L): 0.7
2025-02-12 09:07:02 (UTC)