RSNI - Manually revised location

MANUAL Location - Area: Val di Taro , magnitude (M_L): 1.0
2025-10-10 09:07:51 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-10-10 09:50:31

Earthquake info - Manual location

Event - ID :	251010090543
Magnitude (M_L) :	1.0 +/- 0.2
Origin Time :	2025-10-10 09:07:51.996 (UTC)
Location :	Latitude: 44.497 N, Longitude: 9.534 E
Area :	Val di Taro
Depth (km) :	6.24
Distances (km) :	7.3 --- Tornolo 7.6 --- Bedonia 8.8 --- Santo Stefano d Aveto 10.1 --- Compiano 12.2 --- Rezzoaglio 14.0 --- Varese Ligure 14.3 --- Borzonasca 14.3 --- Albareto 16.8 --- Ferriere 17.6 --- Mezzanego 17.6 --- Maissana 18.5 --- Borgo Val di Taro 19.1 --- Fontanigorda 20.0 --- Ne 21.3 --- Ottone 21.6 --- Bardi 22.1 --- Carasco 22.2 --- Rovegno 22.3 --- San Colombano Certenoli 22.3 --- Favale di Malvaro

Quality location estimate: Erh: 1.3 km, Erz: 1.1 km, Nf: 17, Gap: 135 °, Rms: 0.15

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.
VRL	IT	2025-10-10 09:07:55.141	0.020	0	-0.03	1.59	2025-10-10 09:07:57.571	0.040	0	-0.01	1.66	15.3
BVT	IT	2025-10-10 09:07:55.374	0.020	0	-0.72	0.11	2025-10-10 09:07:58.125	0.040	0	-1.05	0.01	18.4
MSSA	IV	2025-10-10 09:07:56.330	0.024	1	0.15	1.29	2025-10-10 09:07:59.592	0.040	0	0.17	1.19	21.4
GORR	GU	2025-10-10 09:07:56.680	0.025	1	0.02	1.72	2025-10-10 09:07:59.996	0.040	0	-0.35	0.40	23.7
CAR	IT	2025-10-10 09:07:57.319	0.020	0	-0.23	0.63	2025-10-10 09:08:01.721	0.040	0	-0.03	1.56	29.4
TGL	IT	2025-10-10 09:07:57.914	0.020	0	0.12	1.52	2025-10-10 09:08:02.000	0.040	0	-0.18	0.98	30.4
GRAM	GU	2025-10-10 09:07:59.986	0.020	0	0.19	1.10	2025-10-10 09:08:05.380	0.040	0	0.01	1.52	42.7
RNCA	GU	2025-10-10 09:08:01.410	0.040	1	1.25	0.00	--:--	-.---	-	-.--	-.--	46.8
PLMA	IV	2025-10-10 09:08:01.923	0.020	0	-0.06	1.44	2025-10-10 09:08:09.011	0.040	0	-0.57	0.27	56.2

Local magnitude (M_L) calculation results

Station	Net	Channels	Stat. Mag.	Wood-And. Ampl.	Dist. (km)	Azimuth
BVT	IT	HN	1.35	6.89e-1	18.4	77
MSSA	IV	HH	0.79	1.44e-1	21.4	184
GORR	GU	HH	0.80	1.23e-1	23.7	303
CAR	IT	HN	1.22	2.17e-1	29.4	166
TGL	IT	HN	1.05	1.37e-1	30.4	278
GRAM	GU	HH	0.87	8.45e-2	42.7	91
RNCA	GU	HH	1.35	1.18e-1	46.8	267
PLMA	IV	HH	0.92	2.92e-2	56.2	153

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

2.8705e-5

2.4865e-6

1.4297e-6

6.1309e-7

2.3483e-7

3.1618e-5

9.3081e-6

2.9635e-7

6.0336e-8

18.4

BVT

HNN

4.1638e-5

1.0350e-5

5.4106e-6

1.5155e-6

8.6030e-7

1.4687e-4

2.5584e-5

1.2685e-6

2.1243e-7

18.4

BVT

HNE

3.1665e-5

6.0613e-6

4.7917e-6

2.6663e-6

1.3123e-6

6.4940e-5

2.3439e-5

1.5618e-6

1.7896e-7

18.4

MSSA

HHZ

1.4389e-5

1.6760e-6

7.9505e-7

2.2357e-7

1.2423e-7

3.2263e-5

2.8347e-6

2.1672e-7

3.6432e-8

21.4

184

MSSA

HHN

1.0159e-5

2.2754e-6

1.1740e-6

3.5100e-7

2.0872e-7

4.4483e-5

4.3494e-6

3.1007e-7

5.5243e-8

21.4

184

MSSA

HHE

1.0790e-5

1.7475e-6

8.8236e-7

3.0436e-7

1.4973e-7

3.5916e-5

2.6290e-6

2.0043e-7

3.4588e-8

21.4

184

GORR

HHZ

7.3938e-6

9.6188e-7

6.4261e-7

2.5765e-7

9.4140e-8

1.7853e-5

3.5076e-6

1.4511e-7

2.3811e-8

23.7

303

GORR

HHN

1.5929e-5

1.6416e-6

9.7914e-7

3.7146e-7

1.6569e-7

2.7406e-5

5.0272e-6

2.4878e-7

3.9628e-8

23.7

303

GORR

HHE

8.7489e-6

1.7115e-6

8.7761e-7

2.6210e-7

1.2669e-7

2.6026e-5

5.1590e-6

1.9902e-7

3.8618e-8

23.7

303

CAR

HNZ

1.0373e-5

1.6495e-6

8.8251e-7

3.5789e-7

1.8494e-7

2.7277e-5

3.5270e-6

2.5564e-7

3.8354e-8

29.4

166

CAR

HNN

1.2355e-5

2.5608e-6

1.4099e-6

4.2925e-7

2.2678e-7

4.5949e-5

7.4606e-6

3.5388e-7

6.2355e-8

29.4

166

CAR

HNE

2.7317e-5

3.8757e-6

1.9105e-6

6.6696e-7

3.1858e-7

5.1626e-5

1.1069e-5

5.3169e-7

8.0333e-8

29.4

166

TGL

HNZ

6.4629e-6

1.0955e-6

6.6544e-7

4.0547e-7

1.6534e-7

1.2102e-5

3.3781e-6

1.5698e-7

2.2873e-8

30.4

278

TGL

HNN

8.9461e-6

1.8604e-6

1.2163e-6

4.6466e-7

2.2394e-7

1.5448e-5

7.1328e-6

3.1382e-7

4.0340e-8

30.4

278

TGL

HNE

8.4737e-6

1.6375e-6

1.2044e-6

4.4443e-7

2.0846e-7

1.6141e-5

7.2827e-6

3.1852e-7

4.1933e-8

30.4

278

GRAM

HHZ

4.0723e-6

6.0865e-7

3.4469e-7

1.2906e-7

5.5071e-8

4.6520e-6

1.2964e-6

9.1784e-8

1.4694e-8

42.7

GRAM

HHN

7.9697e-6

1.1315e-6

8.3532e-7

2.7773e-7

1.3418e-7

1.7541e-5

5.4980e-6

2.0622e-7

2.7640e-8

42.7

GRAM

HHE

5.2104e-6

8.7659e-7

8.2263e-7

2.8270e-7

1.3333e-7

1.0145e-5

3.7875e-6

1.9305e-7

2.6570e-8

42.7

RNCA

HHZ

5.4140e-6

9.1388e-7

5.6041e-7

1.3431e-7

6.7957e-8

1.6721e-5

2.4525e-6

1.1636e-7

2.2715e-8

46.8

267

RNCA

HHN

4.3139e-6

8.2418e-7

5.0441e-7

1.3970e-7

7.5418e-8

1.0776e-5

3.4902e-6

1.1751e-7

1.7858e-8

46.8

267

RNCA

HHE

9.2318e-6

1.9586e-6

1.1019e-6

2.4482e-7

1.2952e-7

2.9148e-5

5.4499e-6

2.2397e-7

4.6320e-8

46.8

267

PLMA

HHZ

3.3544e-6

3.2627e-7

1.8295e-7

6.0793e-8

4.3081e-8

4.4979e-6

1.0005e-6

5.2712e-8

8.3068e-9

56.2

153

PLMA

HHN

4.2192e-6

5.0670e-7

2.3657e-7

9.0011e-8

5.5512e-8

8.0671e-6

1.2162e-6

7.0944e-8

1.1822e-8

56.2

153

PLMA

HHE

4.8143e-6

5.6180e-7

1.9366e-7

6.3429e-8

3.4282e-8

4.9576e-6

7.8719e-7

4.4787e-8

1.2279e-8

56.2

153

*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 09:07:51 (UTC)

MANUAL Location - Area: Val di Taro , magnitude (M_L): 1.0
2025-10-10 09:07:51 (UTC)