RsniPicker2 Automatic Earthquake Location

AUTOMATIC Location - Area: Alpi Marittime , magnitude (M_L): 0.5
2025-12-08 18:56:57 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-12-08 19:01:42

Earthquake info - RsniPicker₂ automatic location

Event - ID :	251208185642
Magnitude (M_L) :	0.5 +/- 1.0
Origin Time :	2025-12-08 18:56:57.869 (UTC)
Location :	Latitude: 44.008 N, Longitude: 7.419 E
Area :	Alpi Marittime
Depth (km) :	16.77
Distances (km) :	16.2 --- Olivetta San Michele (IM) 18.6 --- Airole (IM) 19.5 --- Rocchetta Nervina (IM) 21.3 --- Pigna (IM) 22.3 --- Castel Vittorio (IM) 22.8 --- Isolabona (IM) 23.8 --- Apricale (IM) 23.9 --- Dolceacqua (IM) 24.9 --- Limone Piemonte (CN) 25.3 --- Perinaldo (IM) 26.0 --- Entracque (CN) 26.9 --- Baiardo (IM) 27.1 --- Camporosso (IM) 27.4 --- Soldano (IM) 27.8 --- Briga Alta (CN) 27.9 --- Vernante (CN) 27.9 --- Triora (IM) 28.0 --- San Biagio della Cima (IM) 28.5 --- Ventimiglia (IM) 28.6 --- Molini di Triora (IM)

Quality location estimate:
Erh: 3.3 km, Erz: 4.4 km, Nf: 10, Gap: 198°, Rms: 0.267 s
Stazioni validate: 7

RsniPicker₂ - Automatic location results

Station	Net	P arrival times	P pick err	P pick weight	P res	Nll weight	S arrival time	S pick err	S pick weight	S res	Nll weight	Dist.
SAOF	FR	2025-12-08 18:57:02.140	1.235	3	0.01	0.79	2025-12-08 18:57:05.130	0.308	2	-0.09	1.57	20.1
ENR	GU	--:--	-.---	-	-.--	-.--	2025-12-08 18:57:07.360	0.288	2	-0.01	1.62	29.8
ISO	FR	--:--	-.---	-	-.--	-.--	2025-12-08 18:57:10.160	0.364	2	0.08	1.53	39.1
IMI	GU	--:--	-.---	-	-.--	-.--	2025-12-08 18:57:11.460	0.177	2	0.03	1.67	42.9
GBOS	GU	--:--	-.---	-	-.--	-.--	2025-12-08 18:57:12.730	0.156	2	0.70	0.55	45.7
RORO	GU	--:--	-.---	-	-.--	-.--	2025-12-08 18:57:15.120	0.616	3	0.13	1.24	55.6
PCP	GU	--:--	-.---	-	-.--	-.--	2025-12-08 18:57:28.870	0.339	2	-0.47	1.02	108.8
GORR	GU	2025-12-08 18:58:58.330	0.077	1	94.70	0.00	--:--	-.---	-	-.--	-.--	164.2
BALD	NI	2025-12-08 18:57:52.830	0.160	2	7.47	0.00	--:--	-.---	-	-.--	-.--	326.8

RsniPicker₂ - Automatic magnitude (M_L) calculation results

Station	Net	Stat. Mag.	Wood-And. Ampl.	Dist. (km)	Azimuth	Used
SAOF	FR	-0.60	6.21e-3	20.1	102	SI
ENR	GU	-0.30	9.45e-3	29.8	360	SI
ISO	FR	-0.40	3.04e-3	39.1	304	SI
IMI	GU	0.00	8.15e-3	42.9	106	SI
GBOS	GU	0.60	1.24e-2	45.7	52	SI
RORO	GU	0.20	5.27e-3	55.6	77	SI
PCP	GU	0.80	5.72e-3	108.8	56	SI
GORR	GU	1.50	9.82e-3	164.2	65	SI
BALD	NI	2.70	1.48e-2	326.8	54	SI

Results of PGA, PGV, IH, spectral amplitudes (SA) values calculation

Station

Net

Channel

PGA
(g)

PGV
(m/s)

PGD
(m)

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.
(°)

SAOF

HHE

0.0000e+0

20.1

102

ENR

HHZ

4.7745e-7

6.1029e-8

0.0000e+0

3.1522e-8

6.8112e-8

1.2572e-7

7.9552e-7

8.9971e-8

4.5398e-8

7.3606e-9

29.8

360

ENR

HHN

1.3096e-6

1.3883e-7

0.0000e+0

6.3772e-8

1.2872e-7

1.6704e-6

1.2346e-7

5.0344e-8

6.9192e-9

29.8

360

ENR

HHE

1.4461e-6

1.3068e-7

0.0000e+0

5.6350e-8

1.1943e-7

1.9253e-7

1.2711e-6

1.1193e-7

4.1778e-8

6.8153e-9

29.8

360

ISO

HHZ

9.7372e-8

1.6198e-8

0.0000e+0

6.1180e-9

1.6022e-8

3.9628e-8

1.2410e-7

1.8630e-8

2.1965e-8

2.9282e-9

39.1

304

ISO

HHN

9.5227e-8

1.5017e-8

0.0000e+0

7.0757e-9

1.5957e-8

2.1536e-7

2.3451e-8

1.6595e-8

2.3471e-9

39.1

304

ISO

HHE

1.0288e-7

1.9639e-8

0.0000e+0

7.9208e-9

1.7922e-8

3.7794e-8

2.0148e-7

2.2174e-8

2.0397e-8

2.4551e-9

39.1

304

IMI

HHZ

1.1132e-7

2.8942e-8

0.0000e+0

1.0697e-8

4.0875e-8

7.4731e-8

1.4982e-7

6.9063e-8

5.1917e-8

5.2874e-9

42.9

106

IMI

HHN

2.4361e-7

4.3108e-8

0.0000e+0

1.8504e-8

5.0408e-8

3.5428e-7

9.2267e-8

4.4388e-8

3.9384e-9

42.9

106

IMI

HHE

1.4683e-7

2.5429e-8

0.0000e+0

1.1915e-8

4.0195e-8

7.1929e-8

2.2384e-7

5.9425e-8

3.7285e-8

2.3527e-9

42.9

106

GBOS

HHZ

9.8037e-8

1.9419e-8

0.0000e+0

8.0125e-9

2.1669e-8

4.7854e-8

1.9918e-7

3.4428e-8

2.2474e-8

2.7386e-9

45.7

GBOS

HHN

5.6480e-7

1.2379e-7

0.0000e+0

5.9184e-8

1.3932e-7

1.0825e-6

2.6288e-7

7.9573e-8

5.3442e-9

45.7

GBOS

HHE

1.2415e-7

1.5367e-8

0.0000e+0

7.9314e-9

1.9765e-8

3.5986e-8

1.6758e-7

2.8373e-8

1.5283e-8

2.2974e-9

45.7

RORO

HHZ

1.3383e-7

2.7546e-8

0.0000e+0

9.0595e-9

3.3927e-8

7.1838e-8

1.6881e-7

4.7273e-8

5.5499e-8

4.5077e-9

55.6

RORO

HHN

9.6834e-8

2.0401e-8

0.0000e+0

9.2182e-9

2.6523e-8

1.8882e-7

4.0240e-8

1.9163e-8

2.3957e-9

55.6

RORO

HHE

9.9487e-8

1.7732e-8

0.0000e+0

8.8100e-9

2.7220e-8

4.8319e-8

2.0497e-7

3.8621e-8

2.2698e-8

3.0002e-9

55.6

PCP

HHZ

1.0667e-7

1.7153e-8

0.0000e+0

8.5874e-9

2.7534e-8

4.8534e-8

1.4791e-7

3.9808e-8

3.0314e-8

4.9519e-9

108.8

PCP

HHN

1.1236e-7

1.9691e-8

0.0000e+0

7.5243e-9

2.4039e-8

1.1820e-7

2.6485e-8

2.4287e-8

3.0032e-9

108.8

PCP

HHE

9.9334e-8

2.0147e-8

0.0000e+0

7.7686e-9

2.8297e-8

5.7290e-8

1.1294e-7

4.5785e-8

3.0205e-8

2.7581e-9

108.8

GORR

HHZ

5.9957e-5

4.5002e-6

0.0000e+0

1.5558e-6

3.4153e-6

5.2570e-6

2.3421e-5

1.5329e-6

2.8686e-7

8.6044e-8

164.2

GORR

HHN

2.8169e-5

2.8662e-6

0.0000e+0

8.4395e-7

1.7734e-6

1.4584e-5

1.3967e-6

1.5980e-7

4.5121e-8

164.2

GORR

HHE

3.7791e-5

3.4232e-6

0.0000e+0

1.2745e-6

2.7095e-6

4.1327e-6

2.1862e-5

1.9756e-6

2.2039e-7

6.4641e-8

164.2

BALD

HHZ

2.7860e-6

2.3834e-7

0.0000e+0

7.3316e-8

1.4431e-7

2.1725e-7

4.3526e-6

1.3884e-7

7.9315e-8

3.7740e-9

326.8

BALD

HHN

8.4080e-6

6.6208e-7

0.0000e+0

1.3607e-7

2.6808e-7

6.2856e-6

2.8534e-7

7.5903e-8

6.7841e-9

326.8

BALD

HHE

5.7650e-6

4.6302e-7

0.0000e+0

1.4003e-7

2.7725e-7

4.0337e-7

7.3420e-6

4.7644e-7

1.7577e-7

1.0018e-8

326.8

*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)

AUTOMATIC Location - Area: Alpi Marittime , magnitude (ML): 0.5 2025-12-08 18:56:57 (UTC)

AUTOMATIC Location - Area: Alpi Marittime , magnitude (M_L): 0.5
2025-12-08 18:56:57 (UTC)