RSNI - Manually revised location

MANUAL Location - Area: Alpi Pennine , magnitude (M_L): 0.3
2025-11-04 19:37:03 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-11-05 08:27:13

Earthquake info - Manual location

Event - ID :	251104193608
Magnitude (M_L) :	0.3 +/- 0.2
Origin Time :	2025-11-04 19:37:03.996 (UTC)
Location :	Latitude: 45.809 N, Longitude: 7.444 E
Area :	Alpi Pennine
Depth (km) :	6.01
Distances (km) :	6.8 --- Oyace 7.5 --- Bionaz 7.7 --- Nus 7.8 --- Quart 8.5 --- Verrayes 8.7 --- Saint-Marcel 9.1 --- Fenis 9.4 --- Valpelline 9.5 --- Brissogne 9.6 --- Saint-Christophe 9.8 --- Torgnon 10.5 --- Roisan 10.6 --- Chambave 10.7 --- Saint-Denis 10.7 --- Doues 11.4 --- Pollein 11.4 --- Ollomont 11.5 --- Antey-Saint-Andre 11.8 --- Gignod 12.8 --- Aosta

Quality location estimate: Erh: 0.7 km, Erz: 0.8 km, Nf: 20, Gap: 80 °, Rms: 0.50

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.
REMY	GU	2025-11-04 19:37:09.061	0.020	0	0.17	0.52	2025-11-04 19:37:11.660	0.040	0	-0.74	1.27	24.0
CIRO	GU	2025-11-04 19:37:09.443	0.020	0	-0.03	1.27	2025-11-04 19:37:12.419	0.040	0	-0.86	1.05	26.4
MRGE	IV	2025-11-04 19:37:09.933	0.080	3	0.00	1.20	2025-11-04 19:37:13.496	0.040	0	-0.66	1.09	31.0
DIX	CH	2025-11-04 19:37:10.169	0.020	0	-0.05	1.16	2025-11-04 19:37:13.740	0.040	0	-0.90	0.89	31.5
SATI	GU	2025-11-04 19:37:10.688	0.020	0	-0.22	0.26	2025-11-04 19:37:15.196	0.040	0	-0.73	1.19	34.9
LSD	GU	2025-11-04 19:37:12.443	0.020	0	-0.01	1.24	2025-11-04 19:37:17.469	0.040	0	-0.77	1.13	46.5
MMK	CH	2025-11-04 19:37:12.882	0.020	0	0.05	1.19	2025-11-04 19:37:18.627	0.040	0	-0.49	0.61	49.1
EMBD	CH	2025-11-04 19:37:13.071	0.020	0	-0.79	1.23	2025-11-04 19:37:19.970	0.040	0	-0.87	0.93	54.8
RSP	GU	2025-11-04 19:37:17.335	0.020	0	0.21	0.57	2025-11-04 19:37:25.341	0.040	0	-0.72	0.94	75.1

Local magnitude (M_L) calculation results

Station	Net	Channels	Stat. Mag.	Wood-And. Ampl.	Dist. (km)	Azimuth
CIRO	GU	HH	0.32	1.77e-2	26.4	157
MRGE	IV	HH	0.10	1.26e-2	31.0	262
DIX	CH	HH	0.85	7.99e-2	31.5	354
SATI	GU	HH	0.29	1.05e-2	34.9	77
LSD	GU	HH	0.22	8.84e-3	46.5	212
MMK	CH	HH	0.15	3.59e-3	49.1	56
RSP	GU	HH	0.41	5.36e-3	75.1	191

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.
(°)

REMY

HHZ

4.9875e-6

4.7399e-7

5.7423e-8

1.6308e-8

8.9314e-9

2.4915e-6

3.3421e-7

1.4582e-8

4.1685e-9

24.0

278

REMY

HHN

2.3109e-6

2.8370e-7

9.0119e-8

3.5278e-8

1.8592e-8

4.8105e-6

3.6007e-7

3.1126e-8

5.2930e-9

24.0

278

REMY

HHE

2.9270e-6

3.3115e-7

7.7865e-8

2.7069e-8

1.3121e-8

4.0203e-6

3.2483e-7

2.1425e-8

5.8828e-9

24.0

278

CIRO

HHZ

2.1810e-6

2.4865e-7

6.5301e-8

2.1534e-8

1.1566e-8

3.4566e-6

2.3276e-7

1.9739e-8

4.4380e-9

26.4

157

CIRO

HHN

4.1608e-6

3.4283e-7

8.3538e-8

2.4934e-8

1.2704e-8

4.3200e-6

4.3808e-7

2.5636e-8

7.2083e-9

26.4

157

CIRO

HHE

3.3020e-6

3.6939e-7

1.3062e-7

3.8959e-8

2.2223e-8

5.7552e-6

6.2851e-7

3.8176e-8

7.1982e-9

26.4

157

MRGE

HHZ

2.0675e-6

1.7129e-7

2.9942e-8

1.2043e-8

6.1529e-9

1.4206e-6

1.2601e-7

1.0978e-8

3.1836e-9

31.0

262

MRGE

HHN

4.4759e-6

3.2248e-7

5.6703e-8

2.6563e-8

3.2580e-8

4.3490e-6

1.9548e-7

6.7144e-8

1.0195e-8

31.0

262

MRGE

HHE

3.4684e-6

2.7338e-7

4.5050e-8

1.6777e-8

9.3598e-9

2.6293e-6

2.1096e-7

1.7462e-8

4.7758e-9

31.0

262

DIX

HHZ

1.6828e-5

1.2844e-6

5.5760e-7

2.0721e-7

7.7098e-8

1.6269e-5

2.8323e-6

1.2734e-7

2.8493e-8

31.5

354

DIX

HHN

1.4406e-5

1.6864e-6

5.1899e-7

1.9519e-7

8.4010e-8

2.3061e-5

2.1681e-6

1.5710e-7

3.4871e-8

31.5

354

DIX

HHE

2.4679e-5

2.0448e-6

5.8361e-7

1.9342e-7

1.0812e-7

2.6273e-5

2.4157e-6

1.8798e-7

4.3980e-8

31.5

354

SATI

HHZ

1.5701e-6

1.6852e-7

3.8101e-8

1.0017e-8

6.9629e-9

2.2558e-6

1.7903e-7

1.2081e-8

3.6416e-9

34.9

SATI

HHN

2.2290e-6

2.6506e-7

5.9633e-8

1.9348e-8

1.2914e-8

5.8311e-6

1.7160e-7

2.5160e-8

5.5714e-9

34.9

SATI

HHE

2.1465e-6

2.8424e-7

7.3027e-8

2.0267e-8

1.5473e-8

6.7133e-6

1.9010e-7

2.6931e-8

5.9251e-9

34.9

LSD

HHZ

1.9733e-6

1.9466e-7

6.4124e-8

1.5473e-8

8.0779e-9

2.1968e-6

2.7068e-7

1.4842e-8

3.5489e-9

46.5

212

LSD

HHN

1.6831e-6

1.8745e-7

5.8432e-8

1.7191e-8

1.0286e-8

1.7596e-6

3.3801e-7

2.0054e-8

3.7952e-9

46.5

212

LSD

HHE

3.0408e-6

2.8399e-7

7.0675e-8

1.6165e-8

9.4721e-9

3.4269e-6

2.3779e-7

1.8533e-8

5.8430e-9

46.5

212

MMK

HHZ

5.8968e-7

6.9245e-8

2.9101e-8

1.3917e-8

9.8455e-9

1.0296e-6

1.1110e-7

1.3963e-8

1.6224e-9

49.1

MMK

HHN

7.3376e-7

7.7516e-8

3.0983e-8

1.5875e-8

9.5070e-9

1.1867e-6

1.2962e-7

1.3233e-8

1.7122e-9

49.1

MMK

HHE

8.3958e-7

7.3198e-8

1.9815e-8

1.0374e-8

6.5691e-9

6.6910e-7

7.4709e-8

1.2185e-8

1.6194e-9

49.1

EMBD

HHZ

5.5934e-7

7.9322e-8

5.0160e-8

2.9212e-8

1.4937e-8

8.0316e-7

2.5419e-7

1.5296e-8

2.3492e-9

54.8

EMBD

HHN

6.7185e-7

6.5515e-8

3.0844e-8

1.2596e-8

7.5975e-9

1.0523e-6

1.4214e-7

1.0889e-8

1.6639e-9

54.8

EMBD

HHE

7.0786e-7

7.2005e-8

2.8266e-8

1.3752e-8

7.8381e-9

7.8933e-7

1.4447e-7

1.1095e-8

1.3879e-9

54.8

RSP

HHZ

3.4516e-7

6.2595e-8

3.5825e-8

2.8746e-8

2.0191e-8

8.4494e-7

1.4323e-7

2.8323e-8

3.0566e-9

75.1

191

RSP

HHN

4.5872e-7

6.4236e-8

3.6097e-8

1.8218e-8

8.5369e-9

8.3871e-7

1.2920e-7

1.1382e-8

1.2151e-9

75.1

191

RSP

HHE

4.2984e-7

5.9481e-8

4.7835e-8

2.4851e-8

8.9373e-9

1.2103e-6

2.3332e-7

1.3299e-8

1.6910e-9

75.1

191

*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 Pennine , magnitude (ML): 0.3 2025-11-04 19:37:03 (UTC)

MANUAL Location - Area: Alpi Pennine , magnitude (M_L): 0.3
2025-11-04 19:37:03 (UTC)