RSNI - Manually revised location

MANUAL Location - Area: Alpi Graie , magnitude (M_L): 0.5
2024-09-16 18:22:06 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2024-09-17 05:35:40

Earthquake info - Manual location

Event - ID :	240916182026
Magnitude (M_L) :	0.5 +/- 0.2
Origin Time :	2024-09-16 18:22:06.164 (UTC)
Location :	Latitude: 45.832 N, Longitude: 7.101 E
Area :	Alpi Graie
Depth (km) :	7.44
Distances (km) :	6.1 --- Saint-Rhemy-En-Bosses 8.6 --- Saint-Oyen 9.6 --- Morgex 9.7 --- La Salle 10.0 --- Etroubles 10.7 --- Courmayeur 11.6 --- Pre -Saint-Didier 13.4 --- Allein 13.7 --- Saint-Nicolas 13.9 --- Avise 15.1 --- Arvier 16.0 --- Doues 16.1 --- Gignod 16.3 --- Ollomont 16.5 --- Villeneuve 16.7 --- Saint-Pierre 17.0 --- Introd 17.2 --- Roisan 17.3 --- La Thuile 17.4 --- Valpelline

Quality location estimate: Erh: 0.8 km, Erz: 0.7 km, Nf: 22, Gap: 99 °, Rms: 0.28

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	2024-09-16 18:22:08.700	0.004	0	-0.01	2.09	2024-09-16 18:22:09.773	0.040	0	-0.65	0.76	10.8
MRGE	IV	2024-09-16 18:22:08.770	0.005	0	0.04	1.91	2024-09-16 18:22:09.870	0.032	0	-0.56	0.79	11.8
COURM	FR	2024-09-16 18:22:09.551	0.020	0	0.40	0.29	2024-09-16 18:22:11.112	0.040	0	-0.03	1.92	14.0
BLANC	GU	2024-09-16 18:22:09.016	0.020	0	-0.86	0.29	2024-09-16 18:22:12.240	0.257	7	-0.15	1.02	16.9
DIX	CH	2024-09-16 18:22:13.670	0.019	0	0.01	1.88	2024-09-16 18:22:18.295	0.112	3	-0.58	0.75	37.6
LSD	GU	2024-09-16 18:22:13.910	0.021	1	-0.03	1.81	2024-09-16 18:22:18.660	0.126	3	-0.58	0.74	42.6
CIRO	GU	2024-09-16 18:22:14.410	0.310	9	-0.60	0.70	2024-09-16 18:22:19.200	0.620	9	-1.95	0.07	45.4
SENIN	CH	2024-09-16 18:22:18.815	0.020	0	1.09	0.00	2024-09-16 18:22:25.935	0.206	6	0.09	1.00	61.8
RSP	GU	2024-09-16 18:22:19.851	0.020	0	0.14	1.15	2024-09-16 18:22:27.850	0.395	8	-1.10	0.32	77.5

Local magnitude (M_L) calculation results

Station	Net	Channels	Stat. Mag.	Wood-And. Ampl.	Dist. (km)	Azimuth
MRGE	IV	HH	0.84	4.00e-1	11.8	204
COURM	FR	HH	0.86	3.69e-1	14.0	263
BLANC	GU	HH	0.24	6.23e-2	16.9	276
DIX	CH	HH	0.83	5.53e-2	37.6	40
LSD	GU	HH	0.49	1.97e-2	42.6	176
CIRO	GU	HH	0.51	9.61e-3	45.4	125
SENIN	CH	HH	0.56	1.06e-2	61.8	14
RSP	GU	HH	0.16	2.78e-3	77.5	170

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

2.6928e-5

2.9729e-6

4.7444e-7

1.6111e-7

6.6211e-8

2.2091e-5

2.9498e-6

1.0606e-7

2.2016e-8

10.8

REMY

HHN

2.5472e-5

2.6272e-6

6.5956e-7

3.1132e-7

1.4107e-7

2.5811e-5

3.0239e-6

2.5578e-7

6.1696e-8

10.8

REMY

HHE

2.4731e-5

2.4212e-6

7.2470e-7

2.4149e-7

1.2060e-7

4.0647e-5

2.7390e-6

2.0392e-7

4.2026e-8

10.8

MRGE

HHZ

5.1916e-5

5.0976e-6

1.0964e-6

4.0088e-7

2.5089e-7

5.4991e-5

4.6844e-6

4.6745e-7

8.9739e-8

11.8

204

MRGE

HHN

1.1884e-4

1.0777e-5

1.2696e-6

3.9464e-7

2.4664e-7

1.1602e-4

4.8796e-6

6.0845e-7

1.5403e-7

11.8

204

MRGE

HHE

1.7156e-4

1.6606e-5

2.0307e-6

7.4560e-7

4.7956e-7

6.6201e-5

1.0028e-5

1.0950e-6

2.6736e-7

11.8

204

COURM

HHZ

6.3687e-5

7.5331e-6

1.8778e-6

5.8106e-7

3.6349e-7

1.3169e-4

6.8923e-6

7.2622e-7

1.6175e-7

14.0

263

COURM

HHN

5.7365e-5

7.8048e-6

2.3297e-6

6.0890e-7

3.5181e-7

2.0407e-4

9.1942e-6

6.7087e-7

1.8051e-7

14.0

263

COURM

HHE

4.7453e-5

7.6085e-6

3.0668e-6

7.4187e-7

3.8661e-7

1.6222e-4

1.3755e-5

6.9710e-7

1.6580e-7

14.0

263

BLANC

HHZ

5.5384e-6

6.4724e-7

3.2686e-7

7.0122e-8

4.3666e-8

1.5590e-5

1.6899e-6

7.6091e-8

1.6002e-8

16.9

276

BLANC

HHN

7.3116e-6

1.0393e-6

4.7257e-7

1.5989e-7

7.9701e-8

1.6572e-5

2.0973e-6

1.3109e-7

2.4508e-8

16.9

276

BLANC

HHE

7.0455e-6

1.0492e-6

5.2437e-7

1.4088e-7

8.2374e-8

2.7144e-5

2.5182e-6

1.3288e-7

2.6266e-8

16.9

276

DIX

HHZ

5.8885e-6

7.5859e-7

3.5972e-7

1.3111e-7

6.1298e-8

1.1532e-5

2.0424e-6

9.6504e-8

1.6709e-8

37.6

DIX

HHN

7.1497e-6

8.1039e-7

4.7938e-7

1.6264e-7

8.0190e-8

1.1850e-5

2.1065e-6

1.2958e-7

2.1202e-8

37.6

DIX

HHE

6.3456e-6

6.1048e-7

4.0802e-7

1.3710e-7

7.5585e-8

1.2370e-5

2.3742e-6

1.0908e-7

1.5709e-8

37.6

LSD

HHZ

3.2191e-6

4.5095e-7

1.5188e-7

4.4863e-8

2.2046e-8

6.3133e-6

3.8821e-7

3.5210e-8

7.9400e-9

42.6

176

LSD

HHN

5.9804e-6

5.0586e-7

1.0279e-7

3.1487e-8

1.6441e-8

5.9830e-6

3.2296e-7

3.3368e-8

8.3678e-9

42.6

176

LSD

HHE

6.9155e-6

5.9396e-7

1.4581e-7

3.9374e-8

2.2506e-8

6.7793e-6

7.0890e-7

3.9067e-8

1.1914e-8

42.6

176

CIRO

HHZ

1.5338e-6

1.5497e-7

4.1779e-8

1.6730e-8

8.4474e-9

1.4241e-6

2.4903e-7

1.2404e-8

2.9292e-9

45.4

125

CIRO

HHN

1.7461e-6

2.0805e-7

7.1593e-8

3.0291e-8

1.3608e-8

2.0133e-6

3.8627e-7

2.3012e-8

4.3575e-9

45.4

125

CIRO

HHE

1.6786e-6

1.6912e-7

4.8398e-8

1.5806e-8

8.0906e-9

1.8861e-6

2.6756e-7

1.3067e-8

3.4004e-9

45.4

125

SENIN

HHZ

1.0755e-6

1.6495e-7

1.1896e-7

4.7876e-8

2.2502e-8

2.0151e-6

5.0869e-7

2.7854e-8

4.8671e-9

61.8

SENIN

HHN

6.4170e-7

1.1969e-7

9.5458e-8

4.6680e-8

2.5884e-8

1.9356e-6

7.0242e-7

3.5230e-8

3.3487e-9

61.8

SENIN

HHE

9.7865e-7

1.6143e-7

9.5850e-8

4.8110e-8

2.1561e-8

4.1825e-6

4.0502e-7

2.8530e-8

3.7307e-9

61.8

RSP

HHZ

2.2253e-7

2.7716e-8

1.4320e-8

7.5335e-9

8.9641e-9

4.0922e-7

5.7333e-8

1.5743e-8

1.9108e-9

77.5

170

RSP

HHN

2.9190e-7

4.6266e-8

2.4199e-8

7.8968e-9

4.4316e-9

8.2640e-7

1.0511e-7

5.9539e-9

1.0042e-9

77.5

170

RSP

HHE

3.5552e-7

5.2787e-8

2.5945e-8

7.6656e-9

4.1268e-9

5.9991e-7

7.8062e-8

6.1365e-9

9.9483e-10

77.5

170

*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 Graie , magnitude (ML): 0.5 2024-09-16 18:22:06 (UTC)

MANUAL Location - Area: Alpi Graie , magnitude (M_L): 0.5
2024-09-16 18:22:06 (UTC)