RsniPicker2 Automatic Earthquake Location

AUTOMATIC Location - Area: Alpi Pennine , magnitude (M_L): 0.9
2026-01-04 10:20:16 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2026-01-04 10:24:44

Earthquake info - RsniPicker₂ automatic location

Event - ID :	260104101925
Magnitude (M_L) :	0.9 +/- 0.2
Origin Time :	2026-01-04 10:20:16.02 (UTC)
Location :	Latitude: 45.864 N, Longitude: 7.161 E
Area :	Alpi Pennine
Depth (km) :	1.71
Distances (km) :	4.8 --- Saint-Rhemy-En-Bosses (AO) 5.8 --- Saint-Oyen (AO) 7.1 --- Etroubles (AO) 10.6 --- Allein (AO) 11.6 --- Ollomont (AO) 12.3 --- Doues (AO) 13.5 --- Valpelline (AO) 13.8 --- Gignod (AO) 14.7 --- Roisan (AO) 14.7 --- La Salle (AO) 15.2 --- Morgex (AO) 16.3 --- Saint-Nicolas (AO) 16.5 --- Courmayeur (AO) 17.2 --- Avise (AO) 17.3 --- Oyace (AO) 17.5 --- Pre -Saint-Didier (AO) 17.8 --- Arvier (AO) 17.8 --- Saint-Pierre (AO) 17.9 --- Sarre (AO) 18.2 --- Villeneuve (AO)

Quality location estimate:
Erh: 4.4 km, Erz: 2.4 km, Nf: 14, Gap: 109°, Rms: 0.281 s
Stazioni validate: 9

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.
MRGE	IV	2026-01-04 10:20:19.100	0.008	0	0.01	2.04	2026-01-04 10:20:21.090	0.039	0	-0.02	2.02	13.1
BLANC	GU	2026-01-04 10:20:18.500	0.006	0	-1.77	0.07	--:--	-.---	-	-.--	-.--	17.8
DIX	CH	2026-01-04 10:20:22.975	0.105	2	0.01	1.73	2026-01-04 10:20:27.340	0.093	1	-0.07	1.57	30.9
CIRO	GU	--:--	-.---	-	-.--	-.--	2026-01-04 10:20:31.170	0.335	2	-0.06	1.03	43.0
LSD	GU	--:--	-.---	-	-.--	-.--	2026-01-04 10:20:30.299	0.139	2	-0.45	0.52	45.0
RSL	FR	2026-01-04 10:20:22.870	0.024	0	-2.46	0.05	--:--	-.---	-	-.--	-.--	45.9
VANNI	CH	--:--	-.---	-	-.--	-.--	2026-01-04 10:20:32.639	0.169	2	-0.14	1.22	51.2
SENIN	CH	--:--	-.---	-	-.--	-.--	2026-01-04 10:20:32.980	0.757	3	-1.96	0.17	56.6
EMBD	CH	--:--	-.---	-	-.--	-.--	2026-01-04 10:20:36.424	0.623	3	-0.30	0.66	65.0
RSP	GU	2026-01-04 10:20:30.610	0.043	0	0.08	1.48	2026-01-04 10:20:39.939	0.438	2	-0.36	0.73	80.0
FIESA	CH	2026-01-04 10:20:34.134	0.052	1	0.29	0.70	--:--	-.---	-	-.--	-.--	96.9

RsniPicker₂ - Automatic magnitude (M_L) calculation results

Station	Net	Stat. Mag.	Wood-And. Ampl.	Dist. (km)	Azimuth	Used
MRGE	IV	1.00	5.31e-1	13.1	217	SI
DIX	CH	1.20	1.81e-1	30.9	38	SI
CIRO	GU	0.70	1.57e-2	43.0	132	SI
LSD	GU	0.70	3.13e-2	45.0	183	SI
RSP	GU	0.80	1.20e-2	80.0	174	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.
(°)

MRGE

HHZ

8.2237e-5

8.4153e-6

0.0000e+0

1.5826e-6

3.3454e-6

5.0884e-6

2.6819e-5

1.9595e-6

2.5661e-7

6.8347e-8

13.1

217

MRGE

HHN

1.8791e-4

1.7760e-5

0.0000e+0

3.6540e-6

7.7162e-6

8.0069e-5

4.1695e-6

6.2751e-7

1.6194e-7

13.1

217

MRGE

HHE

1.6098e-4

1.6435e-5

0.0000e+0

2.8120e-6

5.8835e-6

8.9104e-6

5.5508e-5

3.8442e-6

5.0452e-7

1.2798e-7

13.1

217

BLANC

HHZ

5.4291e-5

6.0619e-6

0.0000e+0

3.2112e-6

6.0776e-6

8.7926e-6

8.2572e-5

1.0236e-5

5.8050e-7

1.0687e-7

17.8

-1

BLANC

HHN

7.5776e-5

8.5897e-6

0.0000e+0

4.5610e-6

8.9382e-6

1.5957e-4

1.1786e-5

8.7697e-7

1.8631e-7

17.8

-1

BLANC

HHE

5.6623e-5

6.4274e-6

0.0000e+0

3.8048e-6

7.0246e-6

9.7999e-6

8.7029e-5

1.4039e-5

7.8906e-7

1.1858e-7

17.8

-1

DIX

HHZ

1.4325e-5

1.7267e-6

0.0000e+0

1.0101e-6

1.6795e-6

2.3348e-6

2.4702e-5

2.5299e-6

2.6271e-7

3.0820e-8

30.9

DIX

HHN

1.5885e-5

3.1192e-6

0.0000e+0

1.0026e-6

1.8009e-6

3.5051e-5

2.7961e-6

3.0534e-7

4.5802e-8

30.9

DIX

HHE

2.0796e-5

2.5334e-6

0.0000e+0

1.5812e-6

2.8900e-6

4.1556e-6

4.9229e-5

3.2496e-6

2.7285e-7

6.1509e-8

30.9

CIRO

HHZ

2.0647e-6

2.2796e-7

0.0000e+0

1.1005e-7

2.2038e-7

3.2535e-7

2.6532e-6

3.6526e-7

3.0846e-8

6.7702e-9

43.0

132

CIRO

HHN

2.3153e-6

2.5947e-7

0.0000e+0

1.5032e-7

2.6961e-7

2.4332e-6

5.1030e-7

3.2840e-8

6.2622e-9

43.0

132

CIRO

HHE

2.0571e-6

2.5137e-7

0.0000e+0

1.0546e-7

2.0648e-7

2.9941e-7

3.8593e-6

3.4207e-7

2.4275e-8

6.8437e-9

43.0

132

LSD

HHZ

3.8566e-6

4.2244e-7

0.0000e+0

1.7797e-7

3.8769e-7

5.6451e-7

5.4229e-6

3.4523e-7

5.2615e-8

9.8794e-9

45.0

183

LSD

HHN

8.5636e-6

6.6240e-7

0.0000e+0

2.4815e-7

5.0491e-7

5.7091e-6

5.4371e-7

4.9486e-8

1.1968e-8

45.0

183

LSD

HHE

9.2674e-6

7.8267e-7

0.0000e+0

2.5913e-7

4.8804e-7

7.1926e-7

8.3347e-6

5.6544e-7

3.7726e-8

1.0204e-8

45.0

183

RSP

HHZ

1.0544e-6

1.4971e-7

0.0000e+0

1.0400e-7

1.7947e-7

2.5223e-7

2.3352e-6

4.5777e-7

4.8865e-8

7.2749e-9

80.0

174

RSP

HHN

9.9328e-7

1.3411e-7

0.0000e+0

1.1723e-7

1.9732e-7

2.3895e-6

5.6042e-7

5.1693e-8

7.5201e-9

80.0

174

RSP

HHE

1.1734e-6

2.1394e-7

0.0000e+0

1.3260e-7

2.2607e-7

3.2869e-7

3.1309e-6

4.6057e-7

5.9200e-8

7.0672e-9

80.0

174

*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 Pennine , magnitude (ML): 0.9 2026-01-04 10:20:16 (UTC)

AUTOMATIC Location - Area: Alpi Pennine , magnitude (M_L): 0.9
2026-01-04 10:20:16 (UTC)