RSNI - Manually revised location

MANUAL Location - Area: Alpi Marittime , magnitude (M_L): -0.2
2025-10-14 19:13:11 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-10-15 07:53:04

Earthquake info - Manual location

Event - ID :	251014191149
Magnitude (M_L) :	-0.2 +/- 0.1
Origin Time :	2025-10-14 19:13:11.199 (UTC)
Location :	Latitude: 44.291 N, Longitude: 7.360 E
Area :	Alpi Marittime
Depth (km) :	11.07
Distances (km) :	3.2 --- Valdieri 4.1 --- Moiola 5.5 --- Valloriate 5.8 --- Demonte 6.2 --- Gaiola 6.3 --- Entracque 7.4 --- Rittana 7.9 --- Roaschia 8.5 --- Roccasparvera 10.0 --- Roccavione 11.1 --- Borgo San Dalmazzo 11.5 --- Aisone 11.7 --- Vignolo 12.1 --- Robilante 12.2 --- Bernezzo 13.4 --- Cervasca 13.5 --- Monterosso Grana 13.6 --- Valgrana 14.7 --- Vernante 15.0 --- Vinadio

Quality location estimate: Erh: 2 km, Erz: 1.2 km, Nf: 22, Gap: 137 °, Rms: 0.59

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.
STV	GU	2025-10-14 19:13:13.801	0.005	0	0.00	1.69	2025-10-14 19:13:15.520	0.034	0	-0.06	1.30	13.3
ENR	GU	2025-10-14 19:13:14.180	0.006	0	0.17	1.12	2025-10-14 19:13:16.069	0.037	0	0.11	1.57	14.8
VIND	IV	2025-10-14 19:13:13.716	0.020	0	-1.08	0.51	2025-10-14 19:13:15.886	0.040	0	-1.35	0.88	18.5
ISO	FR	2025-10-14 19:13:16.940	0.014	0	0.13	1.46	2025-10-14 19:13:20.230	0.083	2	-0.38	0.47	29.9
PZZ	GU	2025-10-14 19:13:16.930	0.020	0	-0.68	0.57	2025-10-14 19:13:20.854	0.040	0	-1.27	0.87	33.3
TURF	FR	2025-10-14 19:13:18.243	0.020	0	-0.04	1.50	2025-10-14 19:13:22.741	0.040	0	-0.58	0.69	36.9
SAOF	FR	2025-10-14 19:13:18.690	0.020	0	0.06	1.73	2025-10-14 19:13:22.990	0.126	3	-0.85	0.53	38.9
GBOS	GU	2025-10-14 19:13:18.522	0.020	0	-0.03	1.54	2025-10-14 19:13:23.620	0.121	3	0.09	1.26	40.4
MLIG	IV	2025-10-14 19:13:18.201	0.020	0	-1.38	0.82	2025-10-14 19:13:24.161	0.040	0	-1.36	0.78	43.8
MGRO	GU	2025-10-14 19:13:19.416	0.020	0	-0.58	0.70	2025-10-14 19:13:25.002	0.040	0	-1.22	0.83	46.9
MVIF	FR	2025-10-14 19:13:19.894	0.020	0	-0.44	0.51	2025-10-14 19:13:25.885	0.100	2	-1.07	0.68	48.2

Local magnitude (M_L) calculation results

Station	Net	Channels	Stat. Mag.	Wood-And. Ampl.	Dist. (km)	Azimuth
ISO	FR	HH	-0.16	8.71e-3	29.9	244
PZZ	GU	HH	-0.32	8.30e-3	33.3	321
TURF	FR	HH	-0.12	6.39e-3	36.9	176
SAOF	FR	HH	-0.36	3.30e-3	38.9	155
MGRO	GU	HH	-0.18	3.47e-3	46.9	128

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

1.5164e-5

1.0810e-6

1.6872e-7

5.4924e-8

3.3305e-8

8.8178e-6

9.3754e-7

8.3008e-8

2.0410e-8

13.3

208

STV

HHN

3.5817e-5

3.5567e-6

5.5075e-7

2.2787e-7

1.3998e-7

2.8083e-5

2.3130e-6

3.0303e-7

7.2555e-8

13.3

208

STV

HHE

2.2901e-5

2.0330e-6

5.7976e-7

1.9776e-7

1.2906e-7

2.8803e-5

2.0927e-6

2.3197e-7

3.9223e-8

13.3

208

ENR

HHZ

3.0337e-5

3.4081e-6

4.5141e-7

1.3553e-7

8.3632e-8

2.7628e-5

1.6968e-6

1.6975e-7

5.0862e-8

14.8

146

ENR

HHN

5.7951e-5

5.9140e-6

9.9564e-7

3.7121e-7

2.2097e-7

5.2572e-5

4.2240e-6

4.6151e-7

9.2997e-8

14.8

146

ENR

HHE

1.7960e-4

1.2828e-5

1.2664e-6

4.5805e-7

3.1584e-7

7.1475e-5

5.2598e-6

7.5370e-7

2.4844e-7

14.8

146

ISO

HHZ

1.2541e-6

1.3170e-7

2.1556e-8

6.4960e-9

4.0949e-9

9.2365e-7

9.4531e-8

6.8471e-9

2.0135e-9

29.9

244

ISO

HHN

1.8597e-6

1.8987e-7

6.1781e-8

2.0699e-8

1.2605e-8

2.0610e-6

2.3169e-7

2.2641e-8

3.7582e-9

29.9

244

ISO

HHE

1.7665e-6

1.7668e-7

5.2190e-8

1.3333e-8

6.9029e-9

2.7075e-6

2.5090e-7

1.5008e-8

3.5275e-9

29.9

244

PZZ

HHZ

6.8801e-7

1.4537e-7

8.0084e-8

2.0647e-8

1.2440e-8

1.8822e-6

2.7175e-7

1.9906e-8

3.0363e-9

33.3

321

PZZ

HHN

8.4859e-7

1.6394e-7

6.8970e-8

2.2936e-8

1.4586e-8

2.4176e-6

3.2822e-7

2.2275e-8

2.9988e-9

33.3

321

PZZ

HHE

8.6590e-7

1.1720e-7

7.0414e-8

1.8958e-8

1.0247e-8

1.8366e-6

3.2748e-7

1.4950e-8

2.5415e-9

33.3

321

TURF

HHZ

5.4594e-7

5.6210e-8

3.0310e-8

1.9295e-8

1.5663e-8

8.1787e-7

1.2193e-7

1.8613e-8

1.6429e-9

36.9

176

TURF

HHN

5.4983e-7

9.3370e-8

4.6698e-8

1.4556e-8

1.3959e-8

2.1696e-6

1.8335e-7

2.1080e-8

2.7810e-9

36.9

176

TURF

HHE

5.0636e-7

7.3323e-8

4.5867e-8

2.2568e-8

1.4861e-8

1.1789e-6

3.0280e-7

2.1654e-8

2.4711e-9

36.9

176

SAOF

HHZ

1.7923e-7

2.9214e-8

2.1871e-8

1.6110e-8

1.1518e-8

3.0415e-7

1.2180e-7

1.6054e-8

1.1096e-9

38.9

155

SAOF

HHN

2.6005e-7

4.1231e-8

2.8551e-8

2.0468e-8

1.1626e-8

5.7140e-7

1.3204e-7

1.3690e-8

1.0556e-9

38.9

155

SAOF

HHE

2.3887e-7

3.5690e-8

2.3758e-8

1.7873e-8

1.3566e-8

4.1866e-7

1.4237e-7

2.1778e-8

1.0932e-9

38.9

155

GBOS

HHZ

8.8671e-7

1.6589e-7

6.5309e-8

2.1426e-8

1.3105e-8

2.2277e-6

3.1963e-7

2.2421e-8

3.8084e-9

40.4

GBOS

HHN

8.3235e-7

1.6762e-7

9.4766e-8

6.2697e-8

2.7625e-8

1.5409e-6

3.7371e-7

3.3302e-8

4.3361e-9

40.4

GBOS

HHE

5.5675e-7

1.5914e-7

9.1477e-8

2.9145e-8

1.4867e-8

1.5214e-6

4.5679e-7

2.1139e-8

4.0558e-9

40.4

MGRO

HHZ

1.9240e-7

2.4425e-8

1.6031e-8

2.0455e-8

1.1643e-8

2.5988e-7

7.9801e-8

1.7065e-8

1.3029e-9

46.9

128

MGRO

HHN

2.1930e-7

3.2930e-8

2.2930e-8

1.8737e-8

1.1797e-8

5.2196e-7

1.4878e-7

2.0337e-8

1.1159e-9

46.9

128

MGRO

HHE

2.4159e-7

3.3313e-8

2.0542e-8

1.6589e-8

9.5219e-9

6.2014e-7

1.2624e-7

8.9766e-9

1.1233e-9

46.9

128

*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 Marittime , magnitude (ML): -0.2 2025-10-14 19:13:11 (UTC)

MANUAL Location - Area: Alpi Marittime , magnitude (M_L): -0.2
2025-10-14 19:13:11 (UTC)