RSNI - Manually revised location

MANUAL Location - Area: Alpi Pennine , magnitude (M_L): 0.8
2025-04-03 23:07:02 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-04-04 07:16:21

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Earthquake info - Manual location

Event - ID :	250403230516
Magnitude (M_L) :	0.8 +/- 0.2
Origin Time :	2025-04-03 23:07:02.597 (UTC)
Location :	Latitude: 45.807 N, Longitude: 7.439 E
Area :	Alpi Pennine
Depth (km) :	6.01
Distances (km) :	6.7 --- Oyace 7.5 --- Quart 7.6 --- Nus 7.7 --- Bionaz 8.5 --- Saint-Marcel 8.7 --- Verrayes 9.0 --- Valpelline 9.1 --- Fenis 9.2 --- Saint-Christophe 9.2 --- Brissogne 10.0 --- Roisan 10.2 --- Torgnon 10.3 --- Doues 10.8 --- Chambave 10.9 --- Saint-Denis 11.0 --- Pollein 11.2 --- Ollomont 11.4 --- Gignod 11.9 --- Antey-Saint-Andre 12.3 --- Aosta

Quality location estimate: Erh: 0.9 km, Erz: 0.7 km, Nf: 44, Gap: 72 °, 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.
REMY	GU	2025-04-03 23:07:07.460	0.011	0	0.02	1.81	2025-04-03 23:07:10.269	0.070	1	-0.64	0.80	23.7
CIRO	GU	2025-04-03 23:07:07.980	0.012	0	-0.09	1.52	2025-04-03 23:07:10.967	0.076	2	-0.90	0.57	26.3
MRGE	IV	2025-04-03 23:07:08.470	0.015	0	0.01	1.82	2025-04-03 23:07:11.689	0.092	2	-0.94	0.51	30.6
DIX	CH	2025-04-03 23:07:08.790	0.016	0	-0.05	1.70	2025-04-03 23:07:12.575	0.094	2	-0.71	0.77	31.7
SATI	GU	2025-04-03 23:07:09.380	0.018	0	-0.20	0.91	2025-04-03 23:07:14.005	0.103	3	-0.65	0.78	35.3
COURM	FR	2025-04-03 23:07:09.599	0.020	0	-0.02	1.77	2025-04-03 23:07:14.180	0.113	3	-0.45	0.76	37.6
BLANC	GU	2025-04-03 23:07:10.953	0.020	0	0.56	0.22	2025-04-03 23:07:15.170	0.121	3	-0.81	0.68	40.4
LSD	GU	2025-04-03 23:07:10.880	0.022	1	-0.11	1.43	2025-04-03 23:07:15.740	0.138	4	-0.98	0.45	46.0
VANNI	CH	2025-04-03 23:07:11.380	0.026	1	0.30	0.77	2025-04-03 23:07:16.811	0.140	4	-0.26	1.01	47.0
ORO	IV	2025-04-03 23:07:11.516	0.020	0	0.03	1.69	2025-04-03 23:07:16.980	0.140	4	-0.71	0.74	47.2
MMK	CH	2025-04-03 23:07:11.785	0.025	1	0.28	0.86	2025-04-03 23:07:17.455	0.147	4	-0.39	0.86	49.6
EMBD	CH	2025-04-03 23:07:12.695	0.028	1	0.17	1.24	2025-04-03 23:07:18.637	0.195	5	-0.91	0.54	55.2
LATO	IV	2025-04-03 23:07:12.853	0.020	0	0.15	1.31	2025-04-03 23:07:19.533	0.040	0	0.07	1.40	56.6
SENIN	CH	2025-04-03 23:07:14.228	0.020	0	0.18	1.21	2025-04-03 23:07:21.389	0.040	0	-0.79	0.69	63.3
RSL	FR	2025-04-03 23:07:15.299	0.020	0	1.05	0.07	2025-04-03 23:07:21.799	0.040	0	-0.54	0.79	64.7
SIMPL	CH	2025-04-03 23:07:14.495	0.036	1	0.14	1.36	2025-04-03 23:07:22.429	0.197	5	-0.28	1.03	66.2
RSP	GU	2025-04-03 23:07:15.870	0.070	3	0.20	1.17	2025-04-03 23:07:24.790	0.224	6	0.22	0.99	74.8
FIESA	CH	2025-04-03 23:07:17.939	0.020	0	0.04	1.48	2025-04-03 23:07:28.304	0.100	2	-0.42	0.91	87.3
OGMO	FR	2025-04-03 23:07:17.842	0.020	0	-0.16	1.21	2025-04-03 23:07:28.362	0.040	0	-0.14	1.17	89.1
BHB	GU	2025-04-03 23:07:21.400	0.059	2	0.48	0.50	2025-04-03 23:07:33.930	0.327	7	0.24	0.85	109.1
PZZ	GU	2025-04-03 23:07:27.660	0.073	3	0.93	0.14	2025-04-03 23:07:44.062	0.040	0	0.24	0.88	146.9

Local magnitude (M_L) calculation results

Station	Net	Channels	Stat. Mag.	Wood-And. Ampl.	Dist. (km)	Azimuth
REMY	GU	HH	0.80	1.23e-1	23.7	279
CIRO	GU	HH	0.98	8.25e-2	26.3	156
MRGE	IV	HH	0.79	6.28e-2	30.6	262
SATI	GU	HH	0.79	3.20e-2	35.3	77
COURM	FR	HH	1.14	1.12e-1	37.6	272
BLANC	GU	HH	0.40	1.74e-2	40.4	276
LSD	GU	HH	0.78	3.22e-2	46.0	212
VANNI	CH	HH	0.76	2.99e-2	47.0	15
ORO	IV	EH	0.81	3.34e-2	47.2	115
MMK	CH	HH	0.81	1.60e-2	49.6	56
EMBD	CH	HH	0.62	1.55e-2	55.2	34
SENIN	CH	HH	0.87	2.10e-2	63.3	350
SIMPL	CH	HH	0.68	1.23e-2	66.2	43
RSP	GU	HH	0.67	9.84e-3	74.8	191
FIESA	CH	HH	1.11	1.76e-2	87.3	36
BHB	GU	HH	0.98	7.04e-3	109.1	187
PZZ	GU	HH	0.99	6.26e-3	146.9	190

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.
(°)

REMY

HHZ

1.8955e-5

1.6851e-6

6.1502e-7

1.8603e-7

9.2984e-8

2.1394e-5

2.6359e-6

1.3973e-7

2.7414e-8

23.7

279

REMY

HHN

1.7285e-5

2.1227e-6

8.7500e-7

3.0278e-7

1.4592e-7

4.0973e-5

3.0412e-6

2.4349e-7

4.9831e-8

23.7

279

REMY

HHE

1.5910e-5

2.3875e-6

8.7608e-7

3.7356e-7

1.6979e-7

3.3584e-5

3.3329e-6

2.2945e-7

5.4673e-8

23.7

279

CIRO

HHZ

1.7823e-5

1.9346e-6

4.6457e-7

1.3422e-7

7.5239e-8

1.9338e-5

1.9403e-6

1.6394e-7

3.5914e-8

26.3

156

CIRO

HHN

1.4282e-5

1.2995e-6

4.5624e-7

1.2963e-7

6.7826e-8

1.8158e-5

2.5159e-6

1.2096e-7

2.9065e-8

26.3

156

CIRO

HHE

1.6508e-5

1.6963e-6

5.7348e-7

2.0986e-7

1.1481e-7

2.7084e-5

2.9422e-6

1.9314e-7

3.1175e-8

26.3

156

MRGE

HHZ

9.0846e-6

7.4453e-7

1.7158e-7

8.0695e-8

3.2120e-8

7.6284e-6

8.4751e-7

5.8874e-8

1.3451e-8

30.6

262

MRGE

HHN

1.6319e-5

1.7392e-6

3.6244e-7

1.1449e-7

6.9120e-8

3.5079e-5

1.5159e-6

1.5122e-7

3.7753e-8

30.6

262

MRGE

HHE

1.5514e-5

1.4192e-6

2.7199e-7

9.6106e-8

5.2448e-8

1.9378e-5

9.5871e-7

1.0323e-7

2.6120e-8

30.6

262

DIX

HHZ

6.7363e-5

6.2680e-6

3.0547e-6

1.0739e-6

6.3153e-7

8.3042e-5

1.5624e-5

1.0739e-6

1.8911e-7

31.7

355

DIX

HHN

7.6765e-5

8.3921e-6

2.4495e-6

7.4730e-7

3.3623e-7

1.3637e-4

9.2132e-6

6.1230e-7

1.7655e-7

31.7

355

DIX

HHE

1.1718e-4

1.4394e-5

5.6364e-6

1.3792e-6

8.0200e-7

2.9584e-4

2.2185e-5

1.4304e-6

2.7705e-7

31.7

355

SATI

HHZ

4.6729e-6

4.4762e-7

1.5107e-7

4.0381e-8

2.1517e-8

8.9830e-6

4.7487e-7

3.5212e-8

9.4127e-9

35.3

SATI

HHN

7.6426e-6

8.6538e-7

2.1038e-7

5.9733e-8

3.0195e-8

1.2802e-5

6.3029e-7

6.0421e-8

1.7296e-8

35.3

SATI

HHE

7.2395e-6

9.0657e-7

2.1938e-7

6.1049e-8

3.9354e-8

1.0720e-5

6.2994e-7

7.7067e-8

1.9264e-8

35.3

COURM

HHZ

9.2435e-6

1.4812e-6

6.6386e-7

1.6099e-7

7.9069e-8

3.0488e-5

2.0361e-6

1.3327e-7

3.0532e-8

37.6

272

COURM

HHN

1.6324e-5

2.0628e-6

8.5893e-7

2.7567e-7

1.5566e-7

5.7235e-5

2.4256e-6

2.5812e-7

5.1030e-8

37.6

272

COURM

HHE

9.6245e-6

1.5671e-6

9.0972e-7

2.5085e-7

1.2118e-7

3.0497e-5

4.2860e-6

1.9510e-7

3.5777e-8

37.6

272

BLANC

HHZ

1.3613e-6

1.7591e-7

1.0427e-7

3.6587e-8

1.7759e-8

3.9647e-6

5.7104e-7

2.3084e-8

4.3098e-9

40.4

276

BLANC

HHN

2.2305e-6

3.0360e-7

1.5499e-7

5.8612e-8

2.7745e-8

4.6846e-6

5.7914e-7

4.0593e-8

6.0110e-9

40.4

276

BLANC

HHE

1.5612e-6

2.4975e-7

1.7739e-7

6.7909e-8

2.6147e-8

2.9624e-6

7.5729e-7

3.8626e-8

5.8978e-9

40.4

276

LSD

HHZ

6.4289e-6

7.9426e-7

2.1958e-7

6.9824e-8

3.1217e-8

9.1500e-6

1.0419e-6

5.2817e-8

1.5149e-8

46.0

212

LSD

HHN

7.5262e-6

7.1181e-7

2.2739e-7

6.5103e-8

2.7092e-8

1.0583e-5

1.1383e-6

5.6496e-8

1.2839e-8

46.0

212

LSD

HHE

8.8568e-6

7.6145e-7

2.6896e-7

7.2530e-8

3.8940e-8

8.5103e-6

1.2698e-6

5.9327e-8

1.6393e-8

46.0

212

VANNI

HHZ

2.0515e-6

2.7475e-7

1.5060e-7

7.6224e-8

2.6958e-8

4.8374e-6

6.3498e-7

3.9112e-8

5.9901e-9

47.0

VANNI

HHN

2.3464e-6

3.2561e-7

2.1182e-7

1.1902e-7

4.6781e-8

6.2764e-6

1.3292e-6

5.7066e-8

8.1848e-9

47.0

VANNI

HHE

2.2177e-6

3.0057e-7

2.2020e-7

1.2155e-7

4.6987e-8

4.4815e-6

1.1397e-6

6.6088e-8

8.9671e-9

47.0

ORO

EHZ

3.9695e-6

3.8183e-7

1.9065e-7

5.7192e-8

2.4574e-8

6.9516e-6

1.0031e-6

4.0424e-8

8.4046e-9

47.2

115

ORO

EHN

7.8911e-6

6.6769e-7

2.7656e-7

1.0191e-7

4.1862e-8

7.5056e-6

1.1410e-6

6.1546e-8

1.3186e-8

47.2

115

ORO

EHE

5.1914e-6

5.0311e-7

2.7189e-7

9.1054e-8

4.2573e-8

9.1705e-6

1.6427e-6

6.3107e-8

9.6756e-9

47.2

115

MMK

HHZ

2.0619e-6

2.8706e-7

1.1269e-7

4.4270e-8

1.7454e-8

4.6861e-6

4.6547e-7

3.2980e-8

6.7200e-9

49.6

MMK

HHN

2.4339e-6

3.4569e-7

1.6654e-7

5.2213e-8

3.5405e-8

7.8844e-6

6.2349e-7

4.8630e-8

9.1406e-9

49.6

MMK

HHE

3.0905e-6

2.3710e-7

8.8284e-8

4.5277e-8

1.8299e-8

3.5258e-6

3.3148e-7

2.9037e-8

5.4122e-9

49.6

EMBD

HHZ

2.1843e-6

3.2636e-7

2.0051e-7

1.2098e-7

4.6936e-8

3.1015e-6

1.1311e-6

6.6261e-8

1.0161e-8

55.2

EMBD

HHN

1.8498e-6

2.1166e-7

1.3770e-7

5.5618e-8

2.0749e-8

3.9598e-6

6.5679e-7

2.8372e-8

5.7498e-9

55.2

EMBD

HHE

1.7097e-6

2.0232e-7

1.1388e-7

4.9002e-8

2.4099e-8

3.4800e-6

6.1960e-7

3.4046e-8

4.5746e-9

55.2

SENIN

HHZ

1.8686e-6

3.6301e-7

2.9120e-7

1.1000e-7

4.6929e-8

6.3011e-6

1.2328e-6

6.7774e-8

9.4701e-9

63.3

350

SENIN

HHN

1.4302e-6

2.4354e-7

1.9722e-7

9.3997e-8

4.1389e-8

4.6755e-6

9.2816e-7

5.3501e-8

7.9412e-9

63.3

350

SENIN

HHE

2.7263e-6

4.3016e-7

2.2192e-7

7.4491e-8

3.6292e-8

7.0374e-6

1.1250e-6

5.6016e-8

1.0470e-8

63.3

350

SIMPL

HHZ

1.9645e-6

2.3797e-7

1.0438e-7

2.8093e-8

1.6017e-8

3.6665e-6

5.6242e-7

2.6024e-8

5.8264e-9

66.2

SIMPL

HHN

1.7750e-6

2.5780e-7

9.2274e-8

3.3356e-8

1.4893e-8

2.9849e-6

2.4109e-7

2.5681e-8

6.3382e-9

66.2

SIMPL

HHE

1.6107e-6

2.1825e-7

1.0993e-7

3.2513e-8

1.5438e-8

3.3897e-6

4.2048e-7

2.4554e-8

5.0528e-9

66.2

RSP

HHZ

6.8211e-7

1.1351e-7

5.2249e-8

1.9663e-8

8.9187e-9

1.8141e-6

1.8037e-7

1.4014e-8

2.4490e-9

74.8

191

RSP

HHN

8.8500e-7

1.9713e-7

9.2854e-8

2.5005e-8

1.3935e-8

2.8794e-6

2.9772e-7

2.2949e-8

4.4608e-9

74.8

191

RSP

HHE

7.7932e-7

1.3556e-7

7.3625e-8

1.9089e-8

9.6331e-9

2.8168e-6

4.1716e-7

1.4685e-8

3.0070e-9

74.8

191

FIESA

HHZ

8.8831e-7

1.7601e-7

1.3000e-7

7.5428e-8

3.9537e-8

3.8136e-6

1.0613e-6

4.4014e-8

5.4870e-9

87.3

FIESA

HHN

1.0841e-6

1.9298e-7

1.5342e-7

6.9914e-8

3.7165e-8

3.0949e-6

1.0539e-6

3.8435e-8

6.2093e-9

87.3

FIESA

HHE

1.0637e-6

1.7067e-7

1.0205e-7

5.9067e-8

3.1747e-8

2.8728e-6

5.8490e-7

3.3427e-8

4.6739e-9

87.3

BHB

HHZ

1.3012e-6

1.9894e-7

5.9208e-8

2.4453e-8

1.0436e-8

1.6423e-6

2.2160e-7

1.4516e-8

2.0380e-9

109.1

187

BHB

HHN

1.1050e-6

1.6162e-7

6.9450e-8

2.4584e-8

1.2076e-8

1.8883e-6

2.7657e-7

1.4270e-8

2.4116e-9

109.1

187

BHB

HHE

6.7654e-7

1.1177e-7

5.2312e-8

2.7711e-8

9.1975e-9

9.3507e-7

1.7448e-7

1.2752e-8

1.8121e-9

109.1

187

PZZ

HHZ

6.0831e-7

1.1107e-7

6.9802e-8

1.8622e-8

8.7159e-9

2.4910e-6

2.8195e-7

1.3180e-8

2.2860e-9

146.9

190

PZZ

HHN

4.6420e-7

6.7476e-8

5.0756e-8

2.3416e-8

1.1404e-8

1.1395e-6

2.8252e-7

1.6081e-8

1.7853e-9

146.9

190

PZZ

HHE

6.7880e-7

1.3443e-7

6.9358e-8

2.8223e-8

1.5665e-8

1.4367e-6

3.0085e-7

1.9602e-8

2.3570e-9

146.9

190

*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): 0.8 2025-04-03 23:07:02 (UTC)

MANUAL Location - Area: Alpi Pennine , magnitude (M_L): 0.8
2025-04-03 23:07:02 (UTC)