RSNI - Manually revised location

MANUAL Location - Area: Alpi Pennine , magnitude (M_L): 0.9
2025-06-04 23:46:52 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-06-05 07:08:44

Earthquake info - Manual location

Event - ID :	250604234628
Magnitude (M_L) :	0.9 +/- 0.2
Origin Time :	2025-06-04 23:46:52.537 (UTC)
Location :	Latitude: 45.798 N, Longitude: 7.444 E
Area :	Alpi Pennine
Depth (km) :	10.04
Distances (km) :	6.5 --- Nus 6.6 --- Quart 7.5 --- Saint-Marcel 7.7 --- Oyace 7.9 --- Verrayes 8.1 --- Fenis 8.4 --- Brissogne 8.7 --- Bionaz 8.8 --- Saint-Christophe 9.7 --- Valpelline 9.8 --- Torgnon 9.9 --- Chambave 10.0 --- Saint-Denis 10.3 --- Roisan 10.6 --- Pollein 10.9 --- Doues 11.5 --- Antey-Saint-Andre 11.6 --- Gignod 12.0 --- Ollomont 12.1 --- Aosta

Quality location estimate: Erh: 1 km, Erz: 1.5 km, Nf: 38, Gap: 69 °, Rms: 0.35

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.
AOSA	IT	2025-06-04 23:46:55.531	0.020	0	0.10	1.54	2025-06-04 23:46:57.457	0.040	0	0.02	1.80	13.9
REMY	GU	2025-06-04 23:46:57.630	0.013	0	0.00	1.81	2025-06-04 23:47:00.419	0.073	2	-0.86	0.83	25.9
CIRO	GU	2025-06-04 23:46:57.940	0.013	0	-0.04	1.66	2025-06-04 23:47:00.725	0.074	2	-1.03	0.57	27.0
MRGE	IV	2025-06-04 23:46:58.660	0.050	2	0.11	1.53	2025-06-04 23:47:01.751	0.112	3	-1.08	0.48	32.1
DIX	CH	2025-06-04 23:46:58.925	0.019	0	-0.12	1.10	2025-06-04 23:47:02.800	0.095	2	-0.89	0.78	33.9
SATI	GU	2025-06-04 23:46:59.380	0.224	9	-0.23	0.94	2025-06-04 23:47:04.140	0.100	3	-0.60	0.71	36.4
BLANC	GU	2025-06-04 23:47:00.513	0.020	0	-0.00	1.72	2025-06-04 23:47:05.312	0.040	0	-0.93	0.73	42.0
LSD	GU	2025-06-04 23:47:00.910	0.024	1	-0.01	1.70	2025-06-04 23:47:05.780	0.138	4	-0.85	0.76	46.4
ORO	IV	2025-06-04 23:47:01.331	0.020	0	-0.03	1.62	2025-06-04 23:47:06.900	0.137	4	-0.65	0.75	47.2
VANNI	CH	2025-06-04 23:47:01.308	0.020	0	0.10	1.56	2025-06-04 23:47:06.912	0.040	0	-0.45	0.60	48.6
MMK	CH	2025-06-04 23:47:01.750	0.020	0	0.20	1.04	2025-06-04 23:47:07.445	0.145	4	-0.52	0.71	50.6
LATO	IV	2025-06-04 23:47:02.768	0.020	0	0.20	1.07	2025-06-04 23:47:08.992	0.040	0	-0.27	0.78	56.3
EMBD	CH	2025-06-04 23:47:02.736	0.020	0	0.11	1.47	2025-06-04 23:47:09.125	0.040	0	-0.64	0.75	56.4
SENIN	CH	2025-06-04 23:47:04.455	0.020	0	0.25	0.85	2025-06-04 23:47:11.811	0.040	0	-0.69	0.77	64.9
RSL	FR	2025-06-04 23:47:05.096	0.020	0	0.82	0.09	2025-06-04 23:47:11.790	0.198	5	-0.64	0.75	65.4
LAUCH	CH	2025-06-04 23:47:06.225	0.166	7	0.60	0.23	2025-06-04 23:47:13.984	0.040	0	-0.89	0.70	74.1
FIESA	CH	2025-06-04 23:47:08.113	0.020	0	0.15	1.23	2025-06-04 23:47:18.664	0.040	0	-0.22	0.96	88.3
BHB	GU	2025-06-04 23:47:11.180	0.055	2	0.52	0.28	2025-06-04 23:47:23.124	0.460	9	-0.21	0.82	108.5

Local magnitude (M_L) calculation results

Station	Net	Channels	Stat. Mag.	Wood-And. Ampl.	Dist. (km)	Azimuth
AOSA	IT	HN	1.41	1.30e+0	13.9	224
REMY	GU	HH	0.92	1.36e-1	25.9	281
CIRO	GU	HH	1.09	1.01e-1	27.0	156
MRGE	IV	HH	0.70	4.68e-2	32.1	264
SATI	GU	HH	0.76	2.86e-2	36.4	75
BLANC	GU	HH	0.52	2.15e-2	42.0	278
LSD	GU	HH	0.96	4.85e-2	46.4	213
ORO	IV	EH	1.12	6.85e-2	47.2	114
VANNI	CH	HH	0.67	2.27e-2	48.6	14
MMK	CH	HH	0.76	1.39e-2	50.6	55
EMBD	CH	HH	0.33	7.65e-3	56.4	33
SENIN	CH	HH	0.99	2.61e-2	64.9	350
LAUCH	CH	HH	0.79	1.23e-2	74.1	20
FIESA	CH	HH	0.92	1.13e-2	88.3	36
BHB	GU	HH	0.94	6.53e-3	108.5	188

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.
(°)

AOSA

HNZ

7.5846e-5

9.8427e-6

6.6499e-6

2.9108e-6

1.1738e-6

1.4392e-4

3.4160e-5

1.7038e-6

2.8362e-7

13.9

224

AOSA

HNN

1.6204e-4

2.0280e-5

1.0298e-5

3.5723e-6

1.8648e-6

3.2146e-4

7.7150e-5

3.2198e-6

5.4235e-7

13.9

224

AOSA

HNE

1.5884e-4

1.4108e-5

8.5955e-6

2.7328e-6

1.1739e-6

2.1682e-4

4.9657e-5

1.5320e-6

2.9076e-7

13.9

224

REMY

HHZ

2.0530e-5

2.2638e-6

8.9837e-7

2.4090e-7

1.2677e-7

3.7124e-5

3.5201e-6

2.0478e-7

4.3975e-8

25.9

281

REMY

HHN

2.9372e-5

3.1945e-6

1.3803e-6

4.8641e-7

2.0660e-7

5.6880e-5

4.2538e-6

3.5462e-7

7.3034e-8

25.9

281

REMY

HHE

2.1471e-5

2.9908e-6

1.1676e-6

3.6245e-7

1.8175e-7

5.5388e-5

4.0208e-6

2.9873e-7

5.7904e-8

25.9

281

CIRO

HHZ

2.3049e-5

2.2905e-6

5.9611e-7

2.0464e-7

1.0331e-7

3.3236e-5

2.4752e-6

1.7516e-7

4.3399e-8

27.0

156

CIRO

HHN

2.7369e-5

2.7269e-6

5.9574e-7

2.5828e-7

1.4211e-7

3.8617e-5

3.2637e-6

2.5461e-7

5.6097e-8

27.0

156

CIRO

HHE

2.4117e-5

2.5770e-6

4.0252e-7

1.5428e-7

7.0901e-8

2.4831e-5

1.6005e-6

1.2549e-7

4.0123e-8

27.0

156

MRGE

HHZ

1.1048e-5

1.0021e-6

1.4066e-7

6.8932e-8

2.8588e-8

6.6519e-6

6.4991e-7

6.3880e-8

1.7033e-8

32.1

264

MRGE

HHN

2.1890e-5

1.6827e-6

2.4309e-7

9.4221e-8

4.4897e-8

1.2522e-5

1.1735e-6

9.5548e-8

3.2526e-8

32.1

264

MRGE

HHE

1.1763e-5

1.2893e-6

1.9751e-7

8.2256e-8

5.1660e-8

1.1090e-5

9.3720e-7

9.4997e-8

2.2269e-8

32.1

264

DIX

HHZ

7.2168e-5

7.2057e-6

2.3017e-6

6.7969e-7

3.5846e-7

1.1466e-4

1.1697e-5

5.9730e-7

1.5112e-7

33.9

354

DIX

HHN

7.5416e-5

8.3983e-6

2.0014e-6

5.5448e-7

3.4416e-7

6.6748e-5

6.9226e-6

6.2709e-7

1.6314e-7

33.9

354

DIX

HHE

8.7832e-5

1.1099e-5

3.4053e-6

9.7481e-7

5.7182e-7

1.1346e-4

1.2026e-5

1.0381e-6

2.2002e-7

33.9

354

SATI

HHZ

3.5067e-6

4.1181e-7

1.3501e-7

4.5862e-8

2.9040e-8

6.8277e-6

5.2005e-7

4.7672e-8

8.1131e-9

36.4

SATI

HHN

7.7448e-6

7.2210e-7

2.0071e-7

5.9487e-8

2.7674e-8

1.3583e-5

6.9920e-7

5.0301e-8

1.3429e-8

36.4

SATI

HHE

5.7553e-6

6.6390e-7

2.2020e-7

5.5311e-8

3.7467e-8

1.1665e-5

7.1177e-7

7.0376e-8

1.4558e-8

36.4

BLANC

HHZ

1.3414e-6

2.0315e-7

1.2257e-7

3.6004e-8

1.5742e-8

5.4333e-6

7.0141e-7

2.5893e-8

5.4106e-9

42.0

278

BLANC

HHN

2.6112e-6

3.4745e-7

1.5701e-7

5.5280e-8

2.7437e-8

3.4043e-6

7.4776e-7

4.3806e-8

7.9907e-9

42.0

278

BLANC

HHE

2.3613e-6

3.7669e-7

1.9459e-7

6.4159e-8

3.1937e-8

7.4257e-6

9.0583e-7

4.5483e-8

8.1716e-9

42.0

278

LSD

HHZ

9.0356e-6

9.2103e-7

3.8654e-7

1.1870e-7

6.4477e-8

1.6782e-5

1.3669e-6

9.9795e-8

1.9539e-8

46.4

213

LSD

HHN

1.5682e-5

1.1976e-6

3.2202e-7

9.0779e-8

3.8637e-8

1.2470e-5

1.6134e-6

8.7475e-8

2.1978e-8

46.4

213

LSD

HHE

1.2844e-5

1.2699e-6

4.1220e-7

1.0180e-7

4.7533e-8

1.2119e-5

1.5971e-6

8.8946e-8

2.5400e-8

46.4

213

ORO

EHZ

6.5293e-6

7.0786e-7

3.7943e-7

1.2261e-7

5.7171e-8

1.1207e-5

2.3157e-6

9.4905e-8

1.8807e-8

47.2

114

ORO

EHN

1.1356e-5

1.6628e-6

6.0196e-7

1.8272e-7

7.3298e-8

1.7744e-5

2.5748e-6

1.4371e-7

3.3924e-8

47.2

114

ORO

EHE

8.5760e-6

9.7881e-7

4.7700e-7

1.8488e-7

8.3395e-8

1.1984e-5

1.9233e-6

1.4052e-7

2.3671e-8

47.2

114

VANNI

HHZ

2.0883e-6

2.5315e-7

1.3930e-7

5.5538e-8

2.0675e-8

2.5898e-6

7.7186e-7

3.4735e-8

5.1554e-9

48.6

VANNI

HHN

2.8343e-6

3.3345e-7

2.0333e-7

7.8251e-8

3.3568e-8

4.1056e-6

9.1368e-7

4.6225e-8

7.1723e-9

48.6

VANNI

HHE

2.1526e-6

2.8341e-7

2.0464e-7

9.3966e-8

3.8460e-8

3.5254e-6

8.3764e-7

4.7471e-8

6.7323e-9

48.6

MMK

HHZ

2.6620e-6

2.8711e-7

1.0252e-7

3.8392e-8

1.7660e-8

5.2150e-6

4.4506e-7

3.0765e-8

6.8764e-9

50.6

MMK

HHN

2.4201e-6

2.5261e-7

1.3968e-7

3.9932e-8

1.9725e-8

7.5156e-6

4.8410e-7

3.4304e-8

5.8474e-9

50.6

MMK

HHE

2.8620e-6

2.3261e-7

8.0428e-8

3.7262e-8

1.7530e-8

3.7584e-6

2.8219e-7

2.4145e-8

5.4794e-9

50.6

EMBD

HHZ

2.1321e-6

2.4842e-7

1.1863e-7

3.4504e-8

1.7778e-8

2.6913e-6

6.3507e-7

2.6053e-8

5.9640e-9

56.4

EMBD

HHN

2.1812e-6

1.9332e-7

7.9812e-8

2.6259e-8

1.1383e-8

2.8985e-6

4.2780e-7

1.9189e-8

4.3665e-9

56.4

EMBD

HHE

1.8829e-6

1.7408e-7

8.5742e-8

3.5313e-8

1.4081e-8

2.8125e-6

4.5410e-7

1.9723e-8

4.0733e-9

56.4

SENIN

HHZ

2.0799e-6

4.8036e-7

3.1998e-7

1.1265e-7

6.0600e-8

6.2131e-6

1.3023e-6

9.6052e-8

1.1248e-8

64.9

350

SENIN

HHN

1.4118e-6

3.4020e-7

2.1243e-7

1.2952e-7

6.1165e-8

5.0265e-6

1.1491e-6

8.5196e-8

8.6264e-9

64.9

350

SENIN

HHE

1.4909e-6

3.3894e-7

2.1960e-7

6.8650e-8

4.1040e-8

5.3532e-6

7.2505e-7

6.3115e-8

9.7390e-9

64.9

350

LAUCH

HHZ

1.1058e-6

1.9173e-7

5.8541e-8

2.6921e-8

1.2314e-8

2.4451e-6

2.2779e-7

1.6578e-8

1.8916e-9

74.1

LAUCH

HHN

1.0898e-6

1.8812e-7

7.2179e-8

2.7256e-8

1.3341e-8

3.1091e-6

2.0964e-7

1.6740e-8

2.9541e-9

74.1

LAUCH

HHE

1.0306e-6

1.9193e-7

1.3199e-7

3.5492e-8

1.9100e-8

2.3696e-6

5.1437e-7

2.8540e-8

5.1902e-9

74.1

FIESA

HHZ

6.5401e-7

9.6961e-8

7.8832e-8

5.3510e-8

3.0367e-8

2.1717e-6

4.2880e-7

3.2575e-8

3.2044e-9

88.3

FIESA

HHN

7.0795e-7

1.2603e-7

1.0659e-7

4.5889e-8

2.7739e-8

1.8312e-6

6.4520e-7

4.4410e-8

4.0977e-9

88.3

FIESA

HHE

8.0763e-7

1.3161e-7

9.2113e-8

5.8484e-8

3.2955e-8

2.1321e-6

4.5965e-7

4.4661e-8

4.3296e-9

88.3

BHB

HHZ

1.1803e-6

2.0593e-7

7.2697e-8

2.5826e-8

1.1844e-8

3.3501e-6

2.7756e-7

1.9046e-8

3.5275e-9

108.5

188

BHB

HHN

8.7096e-7

1.4439e-7

6.5622e-8

2.1588e-8

1.3548e-8

1.9333e-6

2.7812e-7

1.8759e-8

3.1883e-9

108.5

188

BHB

HHE

6.1710e-7

8.3690e-8

5.6955e-8

3.3559e-8

1.1322e-8

1.5801e-6

2.1163e-7

1.4152e-8

1.9288e-9

108.5

188

*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 Pennine , magnitude (ML): 0.9 2025-06-04 23:46:52 (UTC)

MANUAL Location - Area: Alpi Pennine , magnitude (M_L): 0.9
2025-06-04 23:46:52 (UTC)