RSNI - Manually revised location

MANUAL Location - Area: Zona Genova , magnitude (M_L): -0.4
2022-10-04 22:19:48 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2022-10-04 22:32:25

Earthquake info - Manual location

Event - ID :	221004221853
Magnitude (M_L) :	-0.4 +/- 0.2
Origin Time :	2022-10-04 22:19:48.61 (UTC)
Location :	Latitude: 44.469 N, Longitude: 9.081 E
Area :	Zona Genova
Depth (km) :	3.87
Distances (km) :	0.7 --- Davagna 2.4 --- Bargagli 5.2 --- Lumarzo 6.1 --- Montoggio 8.4 --- Torriglia 8.8 --- Neirone 9.1 --- Uscio 9.2 --- Sant Olcese 9.9 --- Valbrevenna 9.9 --- Bogliasco 10.0 --- Casella 10.3 --- Pieve Ligure 10.7 --- Tribogna 10.7 --- Sori 11.5 --- Moconesi 11.7 --- Avegno 12.4 --- Serra Ricco 12.5 --- Recco 12.9 --- Savignone 13.6 --- Propata

Quality location estimate: Erh: 0.3 km, Erz: 0.4 km, Nf: 16, Gap: 137 °, Rms: 0.05

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.
LSG07	LK	2022-10-04 22:19:49.927	0.020	0	0.00	1.25	2022-10-04 22:19:50.953	0.040	0	0.10	0.81	3.9
ARV12	LK	2022-10-04 22:19:50.042	0.020	0	0.02	1.25	2022-10-04 22:19:50.985	0.040	0	-0.05	1.01	4.4
LSG06	LK	2022-10-04 22:19:50.143	0.020	0	-0.02	1.17	2022-10-04 22:19:51.247	0.040	0	-0.02	1.15	4.7
ARV10	LK	2022-10-04 22:19:50.206	0.020	0	0.06	1.09	2022-10-04 22:19:51.217	0.040	0	-0.02	1.13	6.2
TBG02	GU	2022-10-04 22:19:50.487	0.020	0	0.09	0.86	2022-10-04 22:19:51.755	0.040	0	0.11	0.77	7.5
TBG01	GU	2022-10-04 22:19:50.604	0.020	0	-0.05	1.02	2022-10-04 22:19:52.082	0.040	0	-0.00	1.18	8.4
RNCA	GU	2022-10-04 22:19:50.965	0.065	3	0.02	1.08	2022-10-04 22:19:52.586	0.040	0	-0.00	1.19	11.1
GORR	GU	2022-10-04 22:19:55.075	0.020	0	1.63	0.00	2022-10-04 22:19:56.953	0.040	0	0.01	1.02	23.1

Local magnitude (M_L) calculation results

Station	Net	Channels	Stat. Mag.	Wood-And. Ampl.	Dist. (km)	Azimuth
TBG02	GU	EH	-0.27	8.12e-2	7.5	129
TBG01	GU	EH	-0.21	7.62e-2	8.4	153
RNCA	GU	HH	-0.51	2.35e-2	11.1	271
GORR	GU	HH	-0.59	5.16e-3	23.1	47

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.
(°)

TBG02

EHZ

6.4210e-6

1.1754e-6

5.0755e-7

1.2966e-7

7.2929e-8

1.6021e-5

1.6170e-6

1.3361e-7

2.8727e-8

7.5

129

TBG02

EHN

1.0107e-5

1.4966e-6

5.5425e-7

1.5913e-7

9.3446e-8

1.5413e-5

1.6403e-6

1.6631e-7

3.4942e-8

7.5

129

TBG02

EHE

8.3954e-6

1.7221e-6

6.8172e-7

1.5868e-7

9.6956e-8

2.2712e-5

2.2351e-6

1.6460e-7

3.5496e-8

7.5

129

TBG01

EHZ

6.9564e-6

5.8450e-7

2.3351e-7

1.0235e-7

4.6710e-8

6.3270e-6

1.0683e-6

6.3013e-8

1.0820e-8

8.4

153

TBG01

EHN

4.5223e-6

1.0793e-6

5.2215e-7

2.3967e-7

1.3217e-7

8.3809e-6

3.1900e-6

1.6634e-7

3.0993e-8

8.4

153

TBG01

EHE

4.6699e-6

7.5575e-7

5.1001e-7

1.8492e-7

8.6402e-8

1.5928e-5

2.0814e-6

1.2835e-7

1.8514e-8

8.4

153

RNCA

HHZ

4.3052e-6

5.0782e-7

1.0250e-7

3.0048e-8

2.4711e-8

7.7720e-6

4.3787e-7

4.8372e-8

7.1373e-9

11.1

271

RNCA

HHN

3.2778e-6

3.1846e-7

6.4371e-8

2.2281e-8

1.2281e-8

3.5796e-6

1.9300e-7

1.7173e-8

3.0876e-9

11.1

271

RNCA

HHE

5.5658e-6

5.0788e-7

1.5886e-7

4.2700e-8

2.8569e-8

1.1893e-5

5.3777e-7

5.8237e-8

1.1006e-8

11.1

271

GORR

HHZ

3.2751e-7

4.8760e-8

2.3348e-8

1.2891e-8

8.0487e-9

4.6508e-7

1.0613e-7

9.6933e-9

1.0021e-9

23.1

GORR

HHN

3.9532e-7

7.1239e-8

4.1060e-8

1.4480e-8

8.7969e-9

7.9516e-7

2.2217e-7

1.0503e-8

1.7584e-9

23.1

GORR

HHE

4.1021e-7

7.7567e-8

5.2684e-8

1.9652e-8

1.2017e-8

1.2540e-6

2.4051e-7

1.2779e-8

1.8998e-9

23.1

*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: Zona Genova , magnitude (ML): -0.4 2022-10-04 22:19:48 (UTC)

MANUAL Location - Area: Zona Genova , magnitude (M_L): -0.4
2022-10-04 22:19:48 (UTC)