RSNI - Manually revised location

MANUAL Location - Area: Francia , magnitude (M_L): 0.8
2025-11-19 05:16:49 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-11-19 07:57:58

Earthquake info - Manual location

Event - ID :	251119051633
Magnitude (M_L) :	0.8 +/- 0.2
Origin Time :	2025-11-19 05:16:49.321 (UTC)
Location :	Latitude: 45.256 N, Longitude: 6.455 E
Area :	Francia
Depth (km) :	6.01
Distances (km) :	27.6 --- Bardonecchia 38.6 --- Oulx 39.4 --- Salbertrand 40.6 --- Sauze d Oulx 41.1 --- Exilles 41.8 --- Moncenisio 42.1 --- Claviere 42.9 --- Cesana Torinese 44.3 --- Chiomonte 44.5 --- Novalesa 44.7 --- Venaus 45.7 --- Giaglione 46.6 --- Pragelato 46.7 --- Gravere 46.9 --- Sestriere 47.1 --- Mompantero 47.4 --- Sauze di Cesana 48.5 --- Susa 50.4 --- Meana di Susa 50.5 --- Usseaux

Quality location estimate: Erh: 1.4 km, Erz: 2.2 km, Nf: 22, Gap: 203 °, Rms: 0.26

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.
OGMO	FR	2025-11-19 05:16:53.770	0.017	0	0.39	0.49	2025-11-19 05:16:56.138	0.184	5	-0.01	1.50	19.6
RRL	GU	2025-11-19 05:16:58.205	0.020	0	-0.01	1.68	2025-11-19 05:17:03.581	0.040	0	-0.90	0.21	46.3
RSL	FR	2025-11-19 05:16:58.897	0.020	0	0.17	1.36	2025-11-19 05:17:05.073	0.040	0	-0.08	1.49	50.2
OGAG	FR	2025-11-19 05:16:58.763	0.020	0	-0.42	0.60	2025-11-19 05:17:05.960	0.040	0	-0.32	0.93	53.0
LSD	GU	2025-11-19 05:17:00.080	0.034	1	-0.06	1.58	2025-11-19 05:17:06.368	0.040	0	-1.21	0.20	58.2
RSP	GU	2025-11-19 05:17:01.460	0.038	1	0.18	1.37	2025-11-19 05:17:08.680	0.506	9	-0.94	0.46	65.0
MRGE	IV	2025-11-19 05:17:02.932	0.020	0	-0.00	1.62	2025-11-19 05:17:12.141	0.040	0	-0.09	1.37	74.5
BHB	GU	2025-11-19 05:17:03.620	0.155	7	-0.05	1.44	2025-11-19 05:17:12.236	0.040	0	-1.42	0.15	79.1
CIRO	GU	2025-11-19 05:17:06.481	0.020	0	-0.53	0.52	2025-11-19 05:17:19.080	0.040	0	0.10	1.25	95.3
PZZ	GU	2025-11-19 05:17:06.947	0.020	0	0.19	1.33	2025-11-19 05:17:19.564	0.040	0	0.22	1.11	98.5

Local magnitude (M_L) calculation results

Station	Net	Channels	Stat. Mag.	Wood-And. Ampl.	Dist. (km)	Azimuth
RRL	GU	HH	0.62	1.49e-2	46.3	145
OGAG	FR	HH	0.93	3.49e-2	53.0	173
LSD	GU	HH	0.69	1.63e-2	58.2	67
RSP	GU	HH	0.61	1.15e-2	65.0	100
MRGE	IV	HH	0.75	9.37e-3	74.5	39
BHB	GU	HH	0.69	7.60e-3	79.1	126
CIRO	GU	HH	1.09	7.40e-3	95.3	66
PZZ	GU	HH	0.89	1.37e-2	98.5	148

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.
(°)

RRL

HHZ

5.0622e-7

1.0105e-7

8.3018e-8

5.3841e-8

3.2631e-8

1.5418e-6

3.9715e-7

4.6156e-8

3.3231e-9

46.3

145

RRL

HHN

8.2516e-7

2.1048e-7

1.5076e-7

7.1134e-8

3.3720e-8

3.4395e-6

7.0492e-7

4.8793e-8

4.7705e-9

46.3

145

RRL

HHE

6.0752e-7

1.5928e-7

1.2343e-7

7.4426e-8

3.8526e-8

2.6177e-6

3.8985e-7

3.6014e-8

4.2783e-9

46.3

145

OGAG

HHZ

6.4312e-7

1.3843e-7

1.2468e-7

6.5611e-8

2.9554e-8

3.0451e-6

6.0669e-7

4.2591e-8

4.5783e-9

53.0

173

OGAG

HHN

7.8033e-7

1.8831e-7

1.6852e-7

1.0834e-7

5.7820e-8

2.0755e-6

7.7681e-7

6.2560e-8

5.9712e-9

53.0

173

OGAG

HHE

6.9188e-7

2.6781e-7

2.1447e-7

1.9900e-7

9.8840e-8

2.1761e-6

1.1064e-6

1.0442e-7

1.0145e-8

53.0

173

LSD

HHZ

9.4508e-7

1.5253e-7

1.0865e-7

4.2579e-8

1.8134e-8

3.1981e-6

4.8638e-7

2.3642e-8

3.9707e-9

58.2

LSD

HHN

1.5360e-6

1.8787e-7

1.4800e-7

5.3796e-8

2.1716e-8

4.8713e-6

5.3458e-7

3.2548e-8

5.1184e-9

58.2

LSD

HHE

9.2507e-7

1.4449e-7

1.1836e-7

3.9654e-8

1.6790e-8

2.0380e-6

8.2934e-7

2.4255e-8

3.6093e-9

58.2

RSP

HHZ

9.7286e-7

1.3099e-7

6.8533e-8

3.7184e-8

1.7515e-8

1.5946e-6

3.2719e-7

2.1797e-8

3.4026e-9

65.0

100

RSP

HHN

7.3925e-7

1.3742e-7

1.0260e-7

6.8739e-8

5.0464e-8

1.8498e-6

5.1686e-7

7.4564e-8

6.8532e-9

65.0

100

RSP

HHE

9.1861e-7

1.2965e-7

1.2450e-7

4.6722e-8

2.2971e-8

3.0096e-6

5.1641e-7

3.2147e-8

3.8050e-9

65.0

100

MRGE

HHZ

3.9830e-7

4.5328e-8

3.8745e-8

1.9669e-8

1.1215e-8

5.1490e-7

2.5237e-7

1.8103e-8

1.3372e-9

74.5

MRGE

HHN

7.5279e-7

9.8153e-8

5.3581e-8

4.9340e-8

4.7309e-8

1.2164e-6

2.1083e-7

7.0200e-8

6.2974e-9

74.5

MRGE

HHE

4.3845e-7

6.0143e-8

3.7226e-8

2.2980e-8

1.5240e-8

1.0001e-6

2.6136e-7

2.2494e-8

1.7115e-9

74.5

BHB

HHZ

4.3024e-7

8.8618e-8

5.8845e-8

2.0953e-8

1.0358e-8

1.5072e-6

3.3322e-7

1.6248e-8

2.2317e-9

79.1

126

BHB

HHN

4.5955e-7

8.6539e-8

6.9437e-8

2.7113e-8

1.1510e-8

1.9029e-6

3.1134e-7

1.6971e-8

2.2824e-9

79.1

126

BHB

HHE

2.8542e-7

5.7580e-8

4.9873e-8

2.5193e-8

1.1554e-8

1.1392e-6

2.9044e-7

1.3534e-8

1.7567e-9

79.1

126

CIRO

HHZ

1.4550e-6

1.2762e-7

4.6612e-8

2.1108e-8

1.0705e-8

1.1242e-6

1.7741e-7

1.2662e-8

2.6356e-9

95.3

CIRO

HHN

1.0555e-6

1.0521e-7

4.6526e-8

2.8958e-8

2.8284e-8

1.1279e-6

2.4438e-7

3.9153e-8

4.1549e-9

95.3

CIRO

HHE

7.1826e-7

1.0123e-7

5.5996e-8

2.0511e-8

2.0128e-8

1.1978e-6

2.5570e-7

3.4759e-8

3.8379e-9

95.3

PZZ

HHZ

4.4580e-7

1.1971e-7

9.0584e-8

3.2939e-8

1.8378e-8

1.2758e-6

4.3001e-7

2.3982e-8

3.1675e-9

98.5

148

PZZ

HHN

4.7600e-7

1.2845e-7

1.1562e-7

4.4004e-8

2.7672e-8

1.2046e-6

7.0287e-7

3.8632e-8

4.2809e-9

98.5

148

PZZ

HHE

5.0792e-7

1.2637e-7

1.1296e-7

3.9309e-8

2.0544e-8

1.6354e-6

6.9752e-7

2.5975e-8

3.6715e-9

98.5

148

*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: Francia , magnitude (ML): 0.8 2025-11-19 05:16:49 (UTC)

MANUAL Location - Area: Francia , magnitude (M_L): 0.8
2025-11-19 05:16:49 (UTC)