RSNI - Manually revised location

MANUAL Location - Area: Alpi Cozie , magnitude (M_L): 0.5
2024-09-15 23:09:40 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2024-09-16 08:05:13

Earthquake info - Manual location

Event - ID :	240915230915
Magnitude (M_L) :	0.5 +/- 0.2
Origin Time :	2024-09-15 23:09:40.272 (UTC)
Location :	Latitude: 44.786 N, Longitude: 6.906 E
Area :	Alpi Cozie
Depth (km) :	5.02
Distances (km) :	16.1 --- Prali 17.0 --- Bobbio Pellice 17.5 --- Sauze di Cesana 19.2 --- Sestriere 19.9 --- Villar Pellice 20.5 --- Cesana Torinese 20.6 --- Pontechianale 20.7 --- Salza di Pinerolo 21.0 --- Claviere 22.1 --- Crissolo 22.6 --- Massello 23.2 --- Rora 23.7 --- Perrero 24.4 --- Bellino 24.6 --- Ostana 25.1 --- Torre Pellice 25.3 --- Casteldelfino 25.4 --- Pragelato 25.5 --- Oncino 26.0 --- Angrogna

Quality location estimate: Erh: 0.9 km, Erz: 1 km, Nf: 20, Gap: 99 °, Rms: 0.31

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.
RRL	GU	2024-09-15 23:09:44.290	0.015	0	0.01	1.73	2024-09-15 23:09:46.330	0.059	1	-0.68	0.67	18.9
BHB	GU	2024-09-15 23:09:46.240	0.015	0	-0.01	1.74	2024-09-15 23:09:49.629	0.101	3	-0.70	0.71	29.3
OGAG	FR	2024-09-15 23:09:45.977	0.080	3	-0.08	1.46	2024-09-15 23:09:49.461	0.155	4	-0.65	0.80	29.5
PZZ	GU	2024-09-15 23:09:46.750	0.022	1	-0.39	0.93	2024-09-15 23:09:51.080	0.104	3	-1.00	0.33	35.8
RSP	GU	2024-09-15 23:09:49.612	0.020	0	-0.01	1.56	2024-09-15 23:09:55.614	0.040	0	-0.44	1.00	49.6
OGMO	FR	2024-09-15 23:09:49.883	0.020	0	0.02	1.48	2024-09-15 23:09:55.319	0.040	0	-1.18	0.20	50.3
ISO	FR	2024-09-15 23:09:53.221	0.020	0	0.63	0.00	2024-09-15 23:10:01.095	0.100	2	-0.12	1.21	68.2
STV	GU	2024-09-15 23:09:52.513	0.020	0	0.03	1.33	2024-09-15 23:10:00.973	0.040	0	-0.14	1.24	69.0
LSD	GU	2024-09-15 23:09:53.935	0.020	0	-0.31	1.06	2024-09-15 23:10:03.423	0.040	0	-0.43	1.05	77.3
CIRO	GU	2024-09-15 23:09:58.708	0.020	0	-0.36	1.08	2024-09-15 23:10:10.942	0.338	7	-1.11	0.42	104.7

Local magnitude (M_L) calculation results

Station	Net	Channels	Stat. Mag.	Wood-And. Ampl.	Dist. (km)	Azimuth
RRL	GU	HH	0.42	5.25e-2	18.9	329
BHB	GU	HH	0.28	2.26e-2	29.3	79
PZZ	GU	HH	0.67	7.10e-2	35.8	152
ISO	FR	HH	0.19	3.70e-3	68.2	170
STV	GU	HH	0.61	6.35e-3	69.0	151
LSD	GU	HH	0.65	8.04e-3	77.3	13
CIRO	GU	HH	0.77	2.81e-3	104.7	30

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

6.8380e-6

9.0606e-7

2.1576e-7

1.2955e-7

7.9240e-8

1.0715e-5

9.2322e-7

1.3032e-7

2.1007e-8

18.9

329

RRL

HHN

7.0578e-6

1.0521e-6

3.8265e-7

1.1905e-7

7.1247e-8

1.8767e-5

1.4784e-6

1.2912e-7

2.5901e-8

18.9

329

RRL

HHE

5.7078e-6

7.9196e-7

2.9688e-7

1.1603e-7

7.7449e-8

1.7656e-5

1.3313e-6

1.1565e-7

1.6769e-8

18.9

329

BHB

HHZ

4.9350e-6

5.4432e-7

1.3450e-7

3.7507e-8

2.8957e-8

1.0102e-5

3.6253e-7

5.8932e-8

1.0990e-8

29.3

BHB

HHN

3.9421e-6

4.4601e-7

2.1706e-7

5.2088e-8

3.4105e-8

7.9295e-6

6.9999e-7

7.1007e-8

1.1469e-8

29.3

BHB

HHE

3.5731e-6

4.2170e-7

1.4289e-7

4.0232e-8

3.5548e-8

9.3891e-6

4.8675e-7

6.8790e-8

9.8311e-9

29.3

OGAG

HHZ

1.1125e-6

2.6104e-7

1.4536e-7

8.3421e-8

5.6139e-8

3.4628e-6

9.0151e-7

7.6880e-8

1.1894e-8

29.5

270

OGAG

HHN

8.0375e-7

1.4073e-7

1.1377e-7

3.9523e-8

2.2723e-8

2.5505e-6

7.6036e-7

3.1827e-8

3.5581e-9

29.5

270

OGAG

HHE

7.8373e-7

1.1257e-7

1.0570e-7

5.6540e-8

2.5978e-8

1.4245e-6

5.6777e-7

4.0469e-8

4.0916e-9

29.5

270

PZZ

HHZ

6.9078e-6

1.1596e-6

5.4872e-7

1.2187e-7

7.2996e-8

1.8097e-5

2.5124e-6

1.2539e-7

2.6580e-8

35.8

152

PZZ

HHN

5.9257e-6

1.1036e-6

5.5366e-7

1.2255e-7

7.0642e-8

1.2059e-5

2.2107e-6

1.1527e-7

2.2221e-8

35.8

152

PZZ

HHE

8.5804e-6

1.5582e-6

7.0408e-7

1.4758e-7

8.1367e-8

1.9075e-5

3.5277e-6

1.3131e-7

3.1606e-8

35.8

152

RSP

HHZ

5.3300e-7

6.1098e-8

2.8942e-8

1.1661e-8

5.1522e-9

8.9728e-7

1.6727e-7

9.1441e-9

1.3600e-9

49.6

RSP

HHN

7.6989e-7

7.4144e-8

3.7231e-8

1.4032e-8

6.6568e-9

1.2832e-6

1.4287e-7

9.7191e-9

1.5315e-9

49.6

RSP

HHE

7.9074e-7

1.1019e-7

3.3361e-8

1.0752e-8

5.3245e-9

2.2077e-6

1.0954e-7

1.1557e-8

2.3498e-9

49.6

ISO

HHZ

3.9235e-7

4.8122e-8

2.2211e-8

8.8991e-9

7.7712e-9

9.9109e-7

8.1811e-8

1.2183e-8

1.7292e-9

68.2

170

ISO

HHN

4.3448e-7

6.3447e-8

2.4417e-8

8.9069e-9

8.7713e-9

8.7653e-7

8.3342e-8

1.5188e-8

1.6967e-9

68.2

170

ISO

HHE

5.2221e-7

5.9168e-8

2.6767e-8

1.1068e-8

8.8021e-9

1.6319e-6

1.2601e-7

1.5375e-8

1.5127e-9

68.2

170

STV

HHZ

3.7294e-7

7.4999e-8

3.7896e-8

1.3000e-8

7.8720e-9

1.1026e-6

1.7573e-7

1.0230e-8

2.2093e-9

69.0

151

STV

HHN

4.5800e-7

7.4035e-8

4.4057e-8

2.5006e-8

2.5833e-8

1.1365e-6

1.6409e-7

4.3344e-8

7.2445e-9

69.0

151

STV

HHE

5.9375e-7

7.0233e-8

3.5342e-8

1.1820e-8

9.8474e-9

1.7202e-6

1.4684e-7

1.2450e-8

1.7677e-9

69.0

151

LSD

HHZ

6.3251e-7

6.8495e-8

4.7267e-8

1.3858e-8

7.4119e-9

9.9661e-7

2.8686e-7

1.3630e-8

1.6824e-9

77.3

LSD

HHN

8.6146e-7

8.4470e-8

4.2245e-8

1.2988e-8

7.6728e-9

1.3975e-6

1.6009e-7

1.3738e-8

1.7215e-9

77.3

LSD

HHE

9.8867e-7

1.0900e-7

6.9618e-8

2.0143e-8

1.1284e-8

1.4124e-6

3.1869e-7

1.7328e-8

2.6955e-9

77.3

CIRO

HHZ

1.9499e-7

2.8956e-8

1.6776e-8

7.6152e-9

3.6447e-9

3.8852e-7

7.9976e-8

5.4200e-9

9.7921e-10

104.7

CIRO

HHN

2.9461e-7

3.0463e-8

1.8251e-8

7.8151e-9

5.5648e-9

5.3166e-7

1.0209e-7

8.8415e-9

8.5414e-10

104.7

CIRO

HHE

2.4364e-7

3.9564e-8

2.3969e-8

9.8623e-9

6.7513e-9

5.0779e-7

1.1703e-7

1.0320e-8

9.8500e-10

104.7

*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 Cozie , magnitude (ML): 0.5 2024-09-15 23:09:40 (UTC)

MANUAL Location - Area: Alpi Cozie , magnitude (M_L): 0.5
2024-09-15 23:09:40 (UTC)