RSNI - Manually revised location

MANUAL Location - Area: Alpi Graie , magnitude (M_L): 0.3
2025-02-11 01:07:53 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-02-11 09:19:10

Earthquake info - Manual location

Event - ID :	250211010730
Magnitude (M_L) :	0.3 +/- 0.2
Origin Time :	2025-02-11 01:07:53.296 (UTC)
Location :	Latitude: 45.417 N, Longitude: 7.400 E
Area :	Alpi Graie
Depth (km) :	6.01
Distances (km) :	4.8 --- Locana 7.3 --- Chialamberto 8.0 --- Noasca 8.1 --- Cantoira 8.2 --- Ribordone 10.6 --- Groscavallo 11.3 --- Sparone 11.4 --- Ceres 13.0 --- Ceresole Reale 13.1 --- Monastero di Lanzo 13.4 --- Ala di Stura 13.4 --- Mezzenile 13.6 --- Coassolo Torinese 14.0 --- Alpette 14.1 --- Pessinetto 14.6 --- Ingria 15.1 --- Ronco Canavese 15.4 --- Corio 15.7 --- Pont-Canavese 15.9 --- Canischio

Quality location estimate: Erh: 1.1 km, Erz: 1.1 km, Nf: 22, Gap: 96 °, Rms: 0.29

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.
LATO	IV	2025-02-11 01:07:57.129	0.020	0	0.48	0.93	2025-02-11 01:07:58.827	0.040	0	-0.00	1.47	15.1
LSD	GU	2025-02-11 01:07:58.404	0.020	0	0.43	1.10	2025-02-11 01:08:01.126	0.040	0	0.03	1.45	22.8
CIRO	GU	2025-02-11 01:07:59.285	0.007	0	0.33	1.09	2025-02-11 01:08:02.600	0.074	2	-0.04	1.24	25.9
RSP	GU	2025-02-11 01:07:59.450	0.020	0	-0.04	1.35	2025-02-11 01:08:03.024	0.040	0	-0.71	0.12	32.5
MRGE	IV	2025-02-11 01:08:02.900	0.018	0	0.64	0.38	2025-02-11 01:08:08.163	0.040	0	-0.01	1.23	47.9
ORO	IV	2025-02-11 01:08:03.269	0.020	0	0.40	1.17	2025-02-11 01:08:09.457	0.040	0	0.20	1.30	51.5
OGMO	FR	2025-02-11 01:08:05.591	0.020	0	1.08	0.00	2025-02-11 01:08:11.385	0.040	0	-0.69	0.14	60.9
SATI	GU	2025-02-11 01:08:05.434	0.020	0	0.28	1.22	2025-02-11 01:08:12.973	0.040	0	-0.14	0.86	63.3
DIX	CH	2025-02-11 01:08:06.608	0.020	0	0.14	1.33	2025-02-11 01:08:15.707	0.040	0	0.12	1.24	74.3
MMK	CH	2025-02-11 01:08:08.095	0.020	0	0.14	1.33	2025-02-11 01:08:18.072	0.040	0	0.21	1.21	83.5

Local magnitude (M_L) calculation results

Station	Net	Channels	Stat. Mag.	Wood-And. Ampl.	Dist. (km)	Azimuth
LSD	GU	HH	0.02	2.16e-2	22.8	283
CIRO	GU	HH	0.33	1.88e-2	25.9	32
MRGE	IV	HH	0.06	4.92e-3	47.9	326
ORO	IV	EH	0.34	9.50e-3	51.5	63
SATI	GU	HH	0.44	4.40e-3	63.3	35
DIX	CH	HH	0.57	7.37e-3	74.3	0
MMK	CH	HH	0.56	3.00e-3	83.5	32

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.
(°)

LSD

HHZ

2.1353e-6

2.9932e-7

1.3925e-7

3.9816e-8

2.1511e-8

4.2170e-6

5.3245e-7

3.4950e-8

7.0946e-9

22.8

283

LSD

HHN

4.8071e-6

5.4798e-7

1.6235e-7

5.2029e-8

2.7853e-8

6.4081e-6

4.4956e-7

4.6893e-8

9.9019e-9

22.8

283

LSD

HHE

4.8052e-6

4.2165e-7

1.6513e-7

5.5175e-8

2.8069e-8

3.2694e-6

6.1969e-7

4.9222e-8

8.9680e-9

22.8

283

CIRO

HHZ

2.9416e-6

3.8385e-7

1.5554e-7

4.0205e-8

2.0377e-8

4.6142e-6

8.0030e-7

3.6200e-8

9.0802e-9

25.9

CIRO

HHN

6.9491e-6

5.3581e-7

1.1262e-7

4.4987e-8

2.8164e-8

5.3778e-6

4.3549e-7

4.6148e-8

1.0079e-8

25.9

CIRO

HHE

6.2049e-6

5.1364e-7

1.2337e-7

3.8087e-8

2.2910e-8

5.4896e-6

5.0821e-7

3.8850e-8

8.8721e-9

25.9

RSP

HHZ

7.5048e-7

9.4885e-8

3.5034e-8

8.9338e-9

5.3371e-9

1.2280e-6

1.7160e-7

9.0526e-9

2.0229e-9

32.5

199

RSP

HHN

7.9463e-7

1.0853e-7

5.1649e-8

1.4530e-8

8.4913e-9

1.8386e-6

2.4369e-7

1.4983e-8

2.9556e-9

32.5

199

RSP

HHE

8.0941e-7

9.2461e-8

3.4561e-8

1.1157e-8

5.0641e-9

1.3099e-6

1.4370e-7

9.1708e-9

1.6898e-9

32.5

199

MRGE

HHZ

3.4053e-6

2.8267e-7

1.8153e-8

7.2019e-9

4.4181e-9

6.9919e-7

8.0763e-8

7.3040e-9

1.4158e-9

47.9

326

MRGE

HHN

4.9952e-6

3.8300e-7

2.7554e-8

1.0952e-8

7.1360e-9

1.8265e-6

1.1370e-7

1.1562e-8

3.1908e-9

47.9

326

MRGE

HHE

3.6246e-6

2.8606e-7

2.4781e-8

1.0674e-8

7.4279e-9

9.4874e-7

1.2265e-7

1.0509e-8

3.1218e-9

47.9

326

ORO

EHZ

1.0894e-6

1.3460e-7

5.3599e-8

1.8926e-8

9.0302e-9

2.4541e-6

2.7024e-7

1.3991e-8

2.7640e-9

51.5

ORO

EHN

1.7991e-6

1.9664e-7

9.4822e-8

3.4525e-8

1.1698e-8

2.4688e-6

5.1947e-7

1.7943e-8

3.5722e-9

51.5

ORO

EHE

2.1531e-6

2.1279e-7

8.0757e-8

2.6447e-8

1.2126e-8

3.2168e-6

3.3473e-7

1.9505e-8

4.6964e-9

51.5

SATI

HHZ

5.9424e-7

6.1753e-8

1.8209e-8

7.1019e-9

4.7349e-9

8.0154e-7

8.4655e-8

8.1185e-9

1.2998e-9

63.3

SATI

HHN

6.8006e-7

7.9138e-8

2.3068e-8

7.2640e-9

5.1057e-9

1.5127e-6

1.4690e-7

9.6947e-9

1.8276e-9

63.3

SATI

HHE

1.0899e-6

9.7791e-8

3.0564e-8

9.5121e-9

6.8165e-9

1.7902e-6

8.2458e-8

9.4293e-9

2.1434e-9

63.3

DIX

HHZ

9.9122e-7

9.3252e-8

4.3717e-8

1.6559e-8

1.2403e-8

1.3752e-6

1.7121e-7

2.3050e-8

2.7523e-9

74.3

DIX

HHN

1.4333e-6

1.2494e-7

5.3111e-8

2.3964e-8

1.4812e-8

2.0849e-6

2.3594e-7

2.0492e-8

3.0235e-9

74.3

DIX

HHE

1.4475e-6

1.4494e-7

5.0390e-8

1.9674e-8

1.5181e-8

2.1729e-6

2.0556e-7

1.5911e-8

3.1642e-9

74.3

MMK

HHZ

2.5807e-7

3.1604e-8

1.5102e-8

6.6149e-9

5.1829e-9

4.5954e-7

6.7678e-8

8.1620e-9

7.9944e-10

83.5

MMK

HHN

3.4617e-7

4.1688e-8

2.1290e-8

7.5938e-9

4.2257e-9

7.5268e-7

1.0914e-7

5.7742e-9

1.0367e-9

83.5

MMK

HHE

2.9900e-7

3.2390e-8

1.4384e-8

1.1155e-8

1.5363e-8

4.0262e-7

6.0891e-8

1.9753e-8

2.4754e-9

83.5

*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): 0.3 2025-02-11 01:07:53 (UTC)

MANUAL Location - Area: Alpi Graie , magnitude (M_L): 0.3
2025-02-11 01:07:53 (UTC)