RSNI - Manually revised location

MANUAL Location - Area: Val di Taro , magnitude (M_L): 1.0
2025-10-10 17:40:40 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-10-10 17:46:24

Earthquake info - Manual location

Event - ID :	251010173912
Magnitude (M_L) :	1.0 +/- 0.2
Origin Time :	2025-10-10 17:40:40.95 (UTC)
Location :	Latitude: 44.521 N, Longitude: 9.584 E
Area :	Val di Taro
Depth (km) :	20.02
Distances (km) :	4.0 --- Bedonia 5.0 --- Tornolo 6.7 --- Compiano 11.1 --- Santo Stefano d Aveto 12.3 --- Albareto 15.0 --- Borgo Val di Taro 15.5 --- Ferriere 15.6 --- Rezzoaglio 15.8 --- Varese Ligure 17.0 --- Bardi 19.0 --- Borzonasca 20.6 --- Maissana 21.6 --- Farini 22.3 --- Mezzanego 22.3 --- Fontanigorda 23.0 --- Ottone 23.4 --- Zeri 24.3 --- Valmozzola 24.4 --- Ne 24.4 --- Morfasso

Quality location estimate: Erh: 2.4 km, Erz: 1.1 km, Nf: 18, Gap: 152 °, Rms: 0.32

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.
BVT	IT	2025-10-10 17:40:45.650	0.020	0	0.00	2.63	2025-10-10 17:40:48.419	0.040	0	-0.67	0.61	24.4
VRL	IT	2025-10-10 17:40:45.470	0.020	0	-0.07	1.88	2025-10-10 17:40:47.834	0.040	0	-1.11	0.31	24.9
MSSA	IV	2025-10-10 17:40:46.600	0.012	0	-0.01	2.61	2025-10-10 17:40:50.140	0.078	2	-0.76	0.78	31.3
GORR	GU	2025-10-10 17:40:46.960	0.013	0	0.03	2.48	2025-10-10 17:40:50.590	0.086	2	-0.96	0.66	32.4
CAR	IT	2025-10-10 17:40:47.656	0.020	0	0.14	0.96	2025-10-10 17:40:52.027	0.040	0	-0.28	0.44	36.8
TGL	IT	2025-10-10 17:40:48.085	0.020	0	0.02	2.44	2025-10-10 17:40:52.412	0.040	0	-0.82	0.78	39.3
RNCA	GU	2025-10-10 17:40:51.583	0.020	0	1.52	0.02	2025-10-10 17:40:57.204	0.040	0	1.03	0.01	54.4
PLMA	IV	2025-10-10 17:40:52.020	0.029	1	0.48	0.04	2025-10-10 17:40:58.950	0.215	6	-0.14	1.18	60.0
PCP	GU	2025-10-10 17:40:56.660	0.041	2	1.96	0.10	2025-10-10 17:41:06.253	0.040	0	2.31	0.09	84.9

Local magnitude (M_L) calculation results

Station	Net	Channels	Stat. Mag.	Wood-And. Ampl.	Dist. (km)	Azimuth
BVT	IT	HN	1.30	3.70e-1	24.4	85
MSSA	IV	HH	0.93	9.84e-2	31.3	193
GORR	GU	HH	0.95	9.56e-2	32.4	293
CAR	IT	HN	1.22	1.38e-1	36.8	175
TGL	IT	HN	1.06	8.46e-2	39.3	273
RNCA	GU	HH	1.15	5.46e-2	54.4	264
PLMA	IV	HH	0.77	1.81e-2	60.0	158
PCP	GU	HH	0.68	7.72e-3	84.9	272

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.
(°)

BVT

HNZ

1.0184e-5

1.3230e-6

9.7438e-7

5.5554e-7

2.3459e-7

2.2923e-5

6.0436e-6

3.1537e-7

3.1437e-8

24.4

BVT

HNN

2.0626e-5

5.4139e-6

3.0215e-6

7.0636e-7

3.6849e-7

6.4829e-5

1.4698e-5

5.8295e-7

1.2589e-7

24.4

BVT

HNE

1.8951e-5

4.1337e-6

2.9695e-6

1.4341e-6

5.7249e-7

6.9544e-5

1.6808e-5

8.3440e-7

1.0838e-7

24.4

MSSA

HHZ

7.5777e-6

1.1805e-6

5.3810e-7

2.0520e-7

1.5588e-7

2.0641e-5

2.1326e-6

2.5802e-7

2.8560e-8

31.3

193

MSSA

HHN

9.0200e-6

1.6285e-6

8.6376e-7

2.4666e-7

1.4319e-7

2.6896e-5

2.8572e-6

2.2502e-7

3.5807e-8

31.3

193

MSSA

HHE

9.5122e-6

1.5331e-6

7.0645e-7

2.0945e-7

1.1497e-7

1.8299e-5

2.2540e-6

1.7087e-7

3.4223e-8

31.3

193

GORR

HHZ

5.7865e-6

7.3029e-7

5.1467e-7

1.6284e-7

7.5784e-8

1.0943e-5

2.2104e-6

1.1814e-7

1.8807e-8

32.4

293

GORR

HHN

1.1456e-5

2.1493e-6

8.1289e-7

2.3260e-7

1.3918e-7

3.5207e-5

2.9603e-6

2.2411e-7

4.0628e-8

32.4

293

GORR

HHE

8.0052e-6

1.2632e-6

6.3219e-7

1.5876e-7

7.1481e-8

2.8325e-5

2.2268e-6

1.1937e-7

2.7846e-8

32.4

293

CAR

HNZ

6.3033e-6

1.0693e-6

6.0651e-7

3.5143e-7

1.6773e-7

1.3722e-5

2.2000e-6

1.9277e-7

2.1648e-8

36.8

175

CAR

HNN

6.2080e-6

1.1709e-6

8.4263e-7

3.1217e-7

1.5540e-7

1.5899e-5

4.6605e-6

2.7121e-7

3.3431e-8

36.8

175

CAR

HNE

1.0458e-5

2.3042e-6

1.1565e-6

5.2717e-7

2.5771e-7

2.9740e-5

6.4333e-6

3.3428e-7

4.7685e-8

36.8

175

TGL

HNZ

5.3827e-6

6.1735e-7

4.5588e-7

3.2465e-7

1.6184e-7

7.2640e-6

2.1837e-6

1.9312e-7

1.6004e-8

39.3

273

TGL

HNN

5.9684e-6

1.0850e-6

6.4572e-7

3.2899e-7

1.8884e-7

1.7508e-5

3.2064e-6

2.4337e-7

2.6164e-8

39.3

273

TGL

HNE

6.4046e-6

1.1785e-6

8.0309e-7

3.3218e-7

1.8455e-7

9.4220e-6

5.1216e-6

2.1852e-7

3.4272e-8

39.3

273

RNCA

HHZ

2.9886e-6

5.0183e-7

3.0016e-7

7.1197e-8

3.9824e-8

1.1896e-5

1.4693e-6

6.5643e-8

1.1455e-8

54.4

264

RNCA

HHN

3.1331e-6

5.4552e-7

3.4343e-7

9.4830e-8

4.8808e-8

7.3624e-6

2.1788e-6

7.4772e-8

1.2974e-8

54.4

264

RNCA

HHE

5.7607e-6

9.4474e-7

5.7819e-7

1.4908e-7

7.0598e-8

2.1775e-5

2.8997e-6

1.1645e-7

2.1973e-8

54.4

264

PLMA

HHZ

1.3162e-6

1.8327e-7

1.2763e-7

5.3524e-8

3.1157e-8

2.4739e-6

9.1881e-7

4.0271e-8

4.3748e-9

60.0

158

PLMA

HHN

2.4143e-6

2.7684e-7

1.7501e-7

5.6923e-8

3.5181e-8

5.5690e-6

9.5543e-7

4.9576e-8

7.0431e-9

60.0

158

PLMA

HHE

1.8672e-6

2.5788e-7

1.6288e-7

6.1853e-8

2.8476e-8

3.4797e-6

7.7023e-7

3.6170e-8

5.5983e-9

60.0

158

PCP

HHZ

3.9435e-7

6.9221e-8

4.8036e-8

2.4044e-8

1.1519e-8

1.6038e-6

2.5923e-7

1.2584e-8

1.8080e-9

84.9

272

PCP

HHN

4.6799e-7

9.9730e-8

6.8777e-8

2.8234e-8

1.2763e-8

1.8145e-6

4.3967e-7

1.8379e-8

2.1981e-9

84.9

272

PCP

HHE

5.9444e-7

9.2820e-8

6.8272e-8

2.6342e-8

1.0403e-8

2.5047e-6

2.3949e-7

1.3576e-8

2.1559e-9

84.9

272

*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: Val di Taro , magnitude (ML): 1.0 2025-10-10 17:40:40 (UTC)

MANUAL Location - Area: Val di Taro , magnitude (M_L): 1.0
2025-10-10 17:40:40 (UTC)