RSNI - Manually revised location

MANUAL Location - Area: Alpi Cozie , magnitude (M_L): 0.6
2025-07-16 18:20:26 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-07-17 07:48:04

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Earthquake info - Manual location

Event - ID :	250716181951
Magnitude (M_L) :	0.6 +/- 0.2
Origin Time :	2025-07-16 18:20:26.16 (UTC)
Location :	Latitude: 44.385 N, Longitude: 7.299 E
Area :	Alpi Cozie
Depth (km) :	5.02
Distances (km) :	3.3 --- Monterosso Grana 4.1 --- Pradleves 7.0 --- Valgrana 7.5 --- Castelmagno 7.7 --- Demonte 7.8 --- Valloriate 8.4 --- Montemale di Cuneo 8.8 --- Rittana 10.1 --- Moiola 10.1 --- Gaiola 10.2 --- Aisone 10.4 --- Cartignano 10.5 --- Dronero 10.8 --- Bernezzo 10.8 --- Caraglio 10.8 --- Roccabruna 12.1 --- San Damiano Macra 12.2 --- Roccasparvera 12.7 --- Villar San Costanzo 13.1 --- Vinadio

Quality location estimate: Erh: 0.8 km, Erz: 0.6 km, Nf: 32, Gap: 81 °, Rms: 0.24

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.
VIND	IV	2025-07-16 18:20:29.509	0.020	0	0.39	0.78	2025-07-16 18:20:31.136	0.040	0	-0.02	1.78	13.9
STV	GU	2025-07-16 18:20:29.770	0.009	0	0.25	0.91	2025-07-16 18:20:31.699	0.052	1	-0.12	1.42	16.8
ENR	GU	2025-07-16 18:20:30.270	0.016	0	0.07	1.65	2025-07-16 18:20:32.850	0.063	1	-0.12	1.41	20.7
PZZ	GU	2025-07-16 18:20:30.580	0.013	0	-0.02	1.77	2025-07-16 18:20:33.590	0.060	1	-0.17	1.18	20.9
ISO	FR	2025-07-16 18:20:32.721	0.020	0	0.79	0.19	2025-07-16 18:20:36.778	0.040	0	0.99	0.16	30.5
SURF	FR	2025-07-16 18:20:34.060	0.021	1	0.13	1.47	2025-07-16 18:20:39.630	0.122	3	0.10	1.47	40.4
GBOS	GU	2025-07-16 18:20:34.760	0.024	1	0.08	1.63	2025-07-16 18:20:40.295	0.198	5	-0.13	1.17	46.2
TURF	FR	2025-07-16 18:20:35.539	0.020	0	0.53	0.56	2025-07-16 18:20:41.202	0.040	0	-0.06	1.48	46.5
SAOF	FR	2025-07-16 18:20:35.894	0.020	0	0.44	0.79	2025-07-16 18:20:41.691	0.442	9	-0.26	0.80	49.0
BHB	GU	2025-07-16 18:20:35.570	0.028	1	0.51	0.62	2025-07-16 18:20:41.257	0.100	2	0.12	1.45	50.4
MLIG	IV	2025-07-16 18:20:35.192	0.020	0	-1.20	0.07	2025-07-16 18:20:42.599	0.040	0	-0.99	0.11	54.0
MVIF	FR	2025-07-16 18:20:38.038	0.020	0	1.31	0.03	2025-07-16 18:20:44.512	0.100	2	0.20	1.31	55.8
IMI	GU	2025-07-16 18:20:38.852	0.020	0	0.04	1.64	2025-07-16 18:20:47.818	0.040	0	0.10	1.40	71.1
RRL	GU	2025-07-16 18:20:38.936	0.020	0	-0.21	0.99	2025-07-16 18:20:48.400	0.438	9	0.08	0.94	72.2
RSP	GU	2025-07-16 18:20:40.883	0.020	0	0.25	1.22	2025-07-16 18:20:50.182	0.040	0	-0.55	0.33	85.1
PCP	GU	2025-07-16 18:20:44.510	0.052	2	0.88	0.28	2025-07-16 18:20:55.830	0.304	7	-0.11	0.95	100.5

Local magnitude (M_L) calculation results

Station	Net	Channels	Stat. Mag.	Wood-And. Ampl.	Dist. (km)	Azimuth
STV	GU	HH	0.16	3.55e-2	16.8	172
ENR	GU	HH	0.81	2.20e-1	20.7	151
PZZ	GU	HH	0.20	6.64e-2	20.9	313
GBOS	GU	HH	0.76	1.59e-2	46.2	110
BHB	GU	HH	0.61	1.67e-2	50.4	357
IMI	GU	HH	0.76	1.70e-2	71.1	138
RRL	GU	HH	0.63	6.12e-3	72.2	326
RSP	GU	HH	0.53	5.32e-3	85.1	358
PCP	GU	HH	0.83	7.36e-3	100.5	80

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.
(°)

STV

HHZ

4.0450e-6

6.8487e-7

2.6146e-7

1.0210e-7

5.1919e-8

6.5104e-6

1.2403e-6

7.1792e-8

1.2144e-8

16.8

172

STV

HHN

4.5460e-6

5.8068e-7

2.6103e-7

8.1395e-8

4.4276e-8

6.8930e-6

1.1622e-6

6.9074e-8

1.2891e-8

16.8

172

STV

HHE

5.0330e-6

6.2628e-7

2.3445e-7

7.2392e-8

4.6493e-8

1.2839e-5

9.2206e-7

8.0142e-8

1.1776e-8

16.8

172

ENR

HHZ

3.3341e-5

3.7236e-6

9.0346e-7

3.5133e-7

1.6453e-7

6.6528e-5

3.8859e-6

3.0974e-7

6.4453e-8

20.7

151

ENR

HHN

6.1347e-5

5.7221e-6

1.1486e-6

3.6926e-7

2.0511e-7

7.5270e-5

5.0459e-6

4.2676e-7

9.5571e-8

20.7

151

ENR

HHE

6.5570e-5

5.3641e-6

1.3488e-6

3.4382e-7

2.1189e-7

6.0477e-5

5.1988e-6

4.4494e-7

1.1426e-7

20.7

151

PZZ

HHZ

8.5216e-6

1.0735e-6

5.3975e-7

1.2935e-7

7.6913e-8

1.3232e-5

2.6068e-6

1.3370e-7

2.6621e-8

20.9

313

PZZ

HHN

1.3106e-5

1.4039e-6

4.7761e-7

1.3702e-7

7.6369e-8

1.5006e-5

1.8539e-6

1.1993e-7

2.6185e-8

20.9

313

PZZ

HHE

7.5450e-6

1.2621e-6

5.4135e-7

1.4457e-7

7.7658e-8

1.4222e-5

2.7878e-6

1.3450e-7

2.9129e-8

20.9

313

ISO

HHZ

7.5322e-7

9.9775e-8

4.0695e-8

1.6499e-8

8.7725e-9

1.5897e-6

2.1216e-7

1.0738e-8

1.9924e-9

30.5

222

ISO

HHN

9.1260e-7

1.0377e-7

2.6945e-8

1.0318e-8

8.0052e-9

1.7655e-6

1.2033e-7

1.2617e-8

1.8821e-9

30.5

222

ISO

HHE

8.7505e-7

8.4437e-8

3.3566e-8

1.2495e-8

6.5195e-9

1.7385e-6

1.3121e-7

1.0356e-8

1.9784e-9

30.5

222

GBOS

HHZ

1.4213e-6

2.5214e-7

1.5089e-7

3.4393e-8

1.9914e-8

5.5040e-6

5.7631e-7

2.9679e-8

6.1405e-9

46.2

110

GBOS

HHN

1.2533e-6

2.1646e-7

1.4381e-7

4.9446e-8

2.7112e-8

4.2178e-6

6.3558e-7

3.4654e-8

5.6729e-9

46.2

110

GBOS

HHE

1.4490e-6

2.2476e-7

1.5592e-7

3.9790e-8

2.2271e-8

6.1468e-6

5.5742e-7

3.6096e-8

5.6322e-9

46.2

110

TURF

HHZ

6.9632e-7

1.2111e-7

6.3832e-8

2.1145e-8

1.5287e-8

1.7951e-6

4.6120e-7

2.1866e-8

2.8327e-9

46.5

171

TURF

HHN

7.1179e-7

1.2161e-7

6.5987e-8

2.2456e-8

1.5444e-8

2.3420e-6

3.4459e-7

1.9330e-8

2.3517e-9

46.5

171

TURF

HHE

5.1227e-7

9.6455e-8

6.0772e-8

2.4253e-8

1.4455e-8

1.4821e-6

4.2255e-7

1.6059e-8

2.4015e-9

46.5

171

SAOF

HHZ

3.9758e-7

5.4411e-8

4.4035e-8

2.3128e-8

1.4405e-8

6.3135e-7

2.6018e-7

2.0043e-8

1.8608e-9

49.0

155

SAOF

HHN

4.7482e-7

6.4378e-8

3.8446e-8

1.7566e-8

1.0197e-8

9.7389e-7

2.0175e-7

1.5176e-8

1.5536e-9

49.0

155

SAOF

HHE

4.3402e-7

6.7144e-8

4.5653e-8

2.6968e-8

1.8449e-8

9.6120e-7

2.6935e-7

2.3936e-8

1.9982e-9

49.0

155

BHB

HHZ

1.9081e-6

2.3308e-7

9.6989e-8

4.1920e-8

1.5964e-8

4.6222e-6

2.7002e-7

2.6018e-8

5.2555e-9

50.4

357

BHB

HHN

1.8081e-6

2.0718e-7

1.1259e-7

3.4691e-8

1.5567e-8

4.1995e-6

5.1680e-7

2.3331e-8

5.2301e-9

50.4

357

BHB

HHE

2.3216e-6

3.4660e-7

1.3061e-7

5.3513e-8

2.1862e-8

4.6126e-6

4.1395e-7

3.6736e-8

7.4523e-9

50.4

357

IMI

HHZ

9.0544e-7

9.7333e-8

6.6309e-8

3.0327e-8

2.0870e-8

2.0476e-6

3.3331e-7

2.5008e-8

2.7979e-9

71.1

138

IMI

HHN

4.1467e-6

4.3403e-7

1.1837e-7

5.1730e-8

2.7335e-8

5.4484e-6

4.1265e-7

4.4789e-8

8.3417e-9

71.1

138

IMI

HHE

1.8167e-6

2.2985e-7

7.6275e-8

2.9058e-8

1.9692e-8

3.1222e-6

3.0548e-7

2.7384e-8

4.9271e-9

71.1

138

RRL

HHZ

3.0600e-7

4.9039e-8

4.0574e-8

1.5984e-8

8.2295e-9

8.9950e-7

2.9382e-7

1.1776e-8

1.3539e-9

72.2

326

RRL

HHN

4.1844e-7

7.0697e-8

5.6377e-8

2.0627e-8

1.0553e-8

1.0434e-6

2.6587e-7

1.3928e-8

1.7820e-9

72.2

326

RRL

HHE

4.5681e-7

9.9286e-8

6.1050e-8

2.1212e-8

1.2226e-8

1.5719e-6

4.7906e-7

1.6018e-8

2.3056e-9

72.2

326

RSP

HHZ

4.6989e-7

6.4727e-8

3.4961e-8

1.8252e-8

9.8898e-9

8.6099e-7

2.0172e-7

1.0840e-8

1.4461e-9

85.1

358

RSP

HHN

5.2943e-7

7.6117e-8

5.0751e-8

1.7276e-8

9.2782e-9

1.3219e-6

2.7357e-7

1.5361e-8

1.7209e-9

85.1

358

RSP

HHE

4.9273e-7

7.0206e-8

5.0551e-8

2.2009e-8

1.0489e-8

1.3420e-6

3.1186e-7

1.4164e-8

1.8760e-9

85.1

358

PCP

HHZ

3.5767e-7

6.5743e-8

4.8534e-8

2.0759e-8

1.0415e-8

9.9427e-7

2.5123e-7

1.6040e-8

1.6383e-9

100.5

PCP

HHN

6.5560e-7

9.3475e-8

6.3522e-8

3.0697e-8

1.1027e-8

1.1511e-6

2.9167e-7

1.5394e-8

2.2373e-9

100.5

PCP

HHE

5.2064e-7

8.5151e-8

5.8494e-8

2.0323e-8

1.1397e-8

2.1196e-6

2.4594e-7

1.6016e-8

2.2412e-9

100.5

*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): 0.6 2025-07-16 18:20:26 (UTC)

MANUAL Location - Area: Alpi Cozie , magnitude (M_L): 0.6
2025-07-16 18:20:26 (UTC)