RSNI - Manually revised location

MANUAL Location - Area: Alpi Cozie , magnitude (M_L): 0.8
2025-03-29 10:34:15 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-03-30 14:23:52

Earthquake info - Manual location

Event - ID :	250329103411
Magnitude (M_L) :	0.8 +/- 0.2
Origin Time :	2025-03-29 10:34:15.148 (UTC)
Location :	Latitude: 44.589 N, Longitude: 6.701 E
Area :	Alpi Cozie
Depth (km) :	4.18
Distances (km) :	25.0 --- Bellino 26.1 --- Acceglio 26.1 --- Pontechianale 28.4 --- Argentera 29.2 --- Casteldelfino 30.3 --- Prazzo 31.2 --- Elva 33.6 --- Canosio 34.3 --- Marmora 34.9 --- Stroppo 37.8 --- Pietraporzio 38.1 --- Crissolo 38.7 --- Sampeyre 39.1 --- Macra 39.2 --- Claviere 39.7 --- Celle di Macra 39.9 --- Oncino 40.3 --- Ostana 40.6 --- Sambuco 41.1 --- Bobbio Pellice

Quality location estimate: Erh: 1 km, Erz: 1 km, Nf: 32, Gap: 174 °, Rms: 0.20

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.
SURF	FR	2025-03-29 10:34:18.841	0.008	0	0.21	1.23	2025-03-29 10:34:21.190	0.048	1	-0.03	1.53	15.5
OGAG	FR	2025-03-29 10:34:20.491	0.013	0	-0.01	1.61	2025-03-29 10:34:23.980	0.075	2	-0.28	0.77	26.1
PZZ	GU	2025-03-29 10:34:22.140	0.021	1	0.02	1.62	2025-03-29 10:34:27.070	0.100	3	-0.10	1.26	34.6
RRL	GU	2025-03-29 10:34:23.030	0.022	1	0.22	1.21	2025-03-29 10:34:28.091	0.305	7	-0.07	1.05	38.1
VIND	IV	2025-03-29 10:34:24.142	0.020	0	-0.40	0.53	2025-03-29 10:34:30.590	0.040	0	-0.56	0.38	48.9
BHB	GU	2025-03-29 10:34:25.293	0.020	0	0.13	1.47	2025-03-29 10:34:32.008	0.040	0	-0.20	1.03	52.4
ISO	FR	2025-03-29 10:34:25.166	0.020	0	-0.03	1.49	2025-03-29 10:34:31.122	0.040	0	-0.97	0.13	53.1
STV	GU	2025-03-29 10:34:26.760	0.036	1	0.18	1.32	2025-03-29 10:34:34.350	0.188	5	-0.21	0.99	62.8
OGMO	FR	2025-03-29 10:34:28.099	0.150	6	0.09	1.33	2025-03-29 10:34:36.890	0.202	6	-0.26	0.91	68.9
ENR	GU	2025-03-29 10:34:27.708	0.020	0	-0.03	1.44	2025-03-29 10:34:36.847	0.040	0	0.29	0.97	69.8
RSP	GU	2025-03-29 10:34:29.890	0.037	1	0.67	0.19	2025-03-29 10:34:39.411	0.040	0	0.29	0.96	76.6
MVIF	FR	2025-03-29 10:34:31.465	0.020	0	0.50	0.44	2025-03-29 10:34:41.419	0.040	0	-0.94	0.19	85.1
TURF	FR	2025-03-29 10:34:31.302	0.020	0	0.13	1.37	2025-03-29 10:34:42.150	0.308	7	-0.32	0.79	87.7
SAOF	FR	2025-03-29 10:34:32.571	0.020	0	0.10	1.38	2025-03-29 10:34:43.750	0.497	9	-0.83	0.39	95.4
GBOS	GU	2025-03-29 10:34:32.447	0.020	0	-0.01	1.37	2025-03-29 10:34:45.035	0.040	0	0.52	0.55	98.4
LSD	GU	2025-03-29 10:34:33.810	0.020	0	0.17	1.25	2025-03-29 10:34:46.241	0.040	0	-0.31	0.84	102.8

Local magnitude (M_L) calculation results

Station	Net	Channels	Stat. Mag.	Wood-And. Ampl.	Dist. (km)	Azimuth
OGAG	FR	HH	0.68	7.82e-2	26.1	330
PZZ	GU	HH	0.92	1.36e-1	34.6	105
RRL	GU	HH	0.79	3.28e-2	38.1	11
BHB	GU	HH	0.78	2.30e-2	52.4	58
ISO	FR	HH	0.61	1.64e-2	53.1	148
STV	GU	HH	0.93	1.63e-2	62.8	127
RSP	GU	HH	0.49	6.10e-3	76.6	35
TURF	FR	HH	1.13	1.82e-2	87.7	141
SAOF	FR	HH	1.05	1.25e-2	95.4	134
LSD	GU	HH	1.09	1.15e-2	102.8	19

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.
(°)

OGAG

HHZ

5.5385e-6

1.3818e-6

7.1708e-7

3.3068e-7

1.3730e-7

1.3748e-5

3.2634e-6

1.8989e-7

3.1006e-8

26.1

330

OGAG

HHN

3.8631e-6

8.4169e-7

6.0825e-7

2.5265e-7

9.7145e-8

1.0742e-5

2.7025e-6

1.2824e-7

2.2954e-8

26.1

330

OGAG

HHE

4.4810e-6

1.0403e-6

8.0109e-7

3.0663e-7

1.5655e-7

1.5079e-5

4.0780e-6

1.6427e-7

2.4643e-8

26.1

330

PZZ

HHZ

1.1546e-5

1.8346e-6

9.8356e-7

2.4012e-7

1.1934e-7

2.4369e-5

4.9746e-6

1.9222e-7

4.5246e-8

34.6

105

PZZ

HHN

1.2536e-5

1.9978e-6

1.4768e-6

4.0132e-7

2.3574e-7

3.6687e-5

5.6180e-6

3.2174e-7

5.6326e-8

34.6

105

PZZ

HHE

9.9908e-6

1.9102e-6

1.2566e-6

3.5894e-7

1.6805e-7

2.5952e-5

7.3084e-6

2.6138e-7

4.7731e-8

34.6

105

RRL

HHZ

2.3144e-6

3.1721e-7

2.1762e-7

1.0969e-7

3.9727e-8

5.1056e-6

1.1037e-6

5.4448e-8

9.5582e-9

38.1

RRL

HHN

2.6758e-6

5.6185e-7

3.4484e-7

9.0490e-8

4.1990e-8

7.1544e-6

1.7231e-6

6.4088e-8

1.2275e-8

38.1

RRL

HHE

2.0179e-6

2.9136e-7

2.2020e-7

1.0982e-7

4.2940e-8

6.6055e-6

9.5369e-7

5.7212e-8

7.9134e-9

38.1

BHB

HHZ

3.8891e-6

5.6592e-7

2.6435e-7

7.8765e-8

5.0869e-8

9.3208e-6

9.5947e-7

9.4402e-8

1.0334e-8

52.4

BHB

HHN

2.9971e-6

4.3562e-7

2.3878e-7

6.2426e-8

3.9456e-8

8.1069e-6

1.1094e-6

7.9461e-8

1.0560e-8

52.4

BHB

HHE

3.0643e-6

3.2679e-7

1.9214e-7

6.1496e-8

3.6513e-8

6.9622e-6

1.0376e-6

7.5123e-8

9.0873e-9

52.4

ISO

HHZ

3.5661e-6

4.1004e-7

1.4099e-7

3.4749e-8

1.9830e-8

6.8368e-6

4.6040e-7

3.3722e-8

8.1883e-9

53.1

148

ISO

HHN

2.8820e-6

3.3995e-7

1.3455e-7

5.0963e-8

2.1271e-8

5.0004e-6

5.0139e-7

3.5137e-8

6.2085e-9

53.1

148

ISO

HHE

3.6002e-6

3.6875e-7

1.4180e-7

5.7388e-8

2.0751e-8

5.6240e-6

4.5898e-7

3.4127e-8

6.8484e-9

53.1

148

STV

HHZ

2.7121e-6

2.7573e-7

1.3316e-7

4.5789e-8

2.1805e-8

3.4580e-6

5.5063e-7

2.9860e-8

4.8381e-9

62.8

127

STV

HHN

2.5135e-6

3.2168e-7

1.2917e-7

4.6806e-8

2.2029e-8

5.4088e-6

5.4325e-7

3.4468e-8

7.2957e-9

62.8

127

STV

HHE

1.9567e-6

3.0147e-7

1.4985e-7

3.9426e-8

2.5244e-8

5.8075e-6

4.9547e-7

4.7309e-8

6.6544e-9

62.8

127

ENR

HHZ

6.6965e-6

6.9824e-7

2.4065e-7

9.5534e-8

4.9353e-8

9.8745e-6

9.2300e-7

7.5042e-8

1.6179e-8

69.8

125

ENR

HHN

1.6387e-5

1.5377e-6

3.2934e-7

1.1969e-7

7.3563e-8

2.0328e-5

1.3871e-6

1.3763e-7

2.7684e-8

69.8

125

ENR

HHE

1.9510e-5

1.7542e-6

3.5982e-7

9.4264e-8

5.4383e-8

1.8031e-5

1.3689e-6

1.2056e-7

3.2890e-8

69.8

125

RSP

HHZ

5.8468e-7

8.2769e-8

4.6872e-8

1.7919e-8

7.5175e-9

1.5938e-6

2.1670e-7

1.1035e-8

1.9434e-9

76.6

RSP

HHN

7.9987e-7

1.1426e-7

6.5234e-8

2.2150e-8

9.5865e-9

2.5156e-6

2.2106e-7

1.3890e-8

2.7548e-9

76.6

RSP

HHE

8.1250e-7

1.0874e-7

6.6649e-8

2.0666e-8

9.2613e-9

2.1357e-6

2.8455e-7

1.2821e-8

2.3215e-9

76.6

TURF

HHZ

1.0482e-6

1.1951e-7

1.0559e-7

4.5912e-8

2.4426e-8

2.2472e-6

3.5151e-7

4.0642e-8

3.5380e-9

87.7

141

TURF

HHN

1.1884e-6

2.0345e-7

1.4973e-7

5.6837e-8

2.7160e-8

4.3158e-6

4.8875e-7

4.9094e-8

5.1672e-9

87.7

141

TURF

HHE

7.9792e-7

1.7955e-7

1.4104e-7

8.3273e-8

3.2027e-8

3.5456e-6

6.4004e-7

4.8141e-8

6.2254e-9

87.7

141

SAOF

HHZ

6.4957e-7

1.5048e-7

1.2198e-7

4.7194e-8

2.5676e-8

1.5693e-6

1.0694e-6

3.6718e-8

4.7062e-9

95.4

134

SAOF

HHN

5.2166e-7

9.1717e-8

9.1826e-8

4.1965e-8

1.9569e-8

9.6121e-7

6.2923e-7

2.3489e-8

3.0584e-9

95.4

134

SAOF

HHE

5.3394e-7

1.1040e-7

1.0032e-7

4.9239e-8

2.8387e-8

1.6073e-6

7.6899e-7

3.9220e-8

3.2421e-9

95.4

134

GBOS

HHZ

7.8172e-7

1.1590e-7

1.0004e-7

3.3893e-8

1.7851e-8

2.4962e-6

7.1242e-7

2.4307e-8

2.8553e-9

98.4

113

GBOS

HHN

7.4081e-7

1.9162e-7

1.2072e-7

5.9516e-8

2.8702e-8

1.8458e-6

8.3898e-7

4.0861e-8

4.2525e-9

98.4

113

GBOS

HHE

9.1672e-7

1.7710e-7

1.2161e-7

3.8891e-8

1.7753e-8

2.3649e-6

1.1896e-6

2.5239e-8

3.6228e-9

98.4

113

LSD

HHZ

6.2372e-7

1.3553e-7

1.0331e-7

3.5046e-8

1.5900e-8

1.5849e-6

4.9227e-7

1.9450e-8

2.9490e-9

102.8

LSD

HHN

6.5906e-7

1.3625e-7

9.8550e-8

3.7776e-8

1.4512e-8

1.9999e-6

4.0578e-7

1.8697e-8

3.1633e-9

102.8

LSD

HHE

6.5768e-7

1.3666e-7

1.1519e-7

3.8560e-8

1.6004e-8

2.1865e-6

6.5715e-7

2.5030e-8

3.7572e-9

102.8

*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): 0.8 2025-03-29 10:34:15 (UTC)

MANUAL Location - Area: Alpi Cozie , magnitude (M_L): 0.8
2025-03-29 10:34:15 (UTC)