RSNI - Manually revised location

MANUAL Location - Area: Alpi Pennine , magnitude (M_L): 0.6
2025-07-01 05:27:43 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-07-01 07:43:52

Earthquake info - Manual location

Event - ID :	250701052720
Magnitude (M_L) :	0.6 +/- 0.2
Origin Time :	2025-07-01 05:27:43.204 (UTC)
Location :	Latitude: 45.898 N, Longitude: 7.549 E
Area :	Alpi Pennine
Depth (km) :	4.48
Distances (km) :	6.1 --- Valtournenche 8.5 --- Chamois 10.1 --- Bionaz 10.7 --- Torgnon 10.8 --- Antey-Saint-Andre 11.0 --- La Magdeleine 13.9 --- Oyace 14.4 --- Ayas 15.1 --- Verrayes 16.1 --- Saint-Denis 16.9 --- Chambave 17.2 --- Chatillon 17.9 --- Saint-Vincent 17.9 --- Pontey 18.4 --- Fenis 18.5 --- Nus 19.1 --- Valpelline 19.3 --- Ollomont 20.1 --- Saint-Marcel 20.2 --- Quart

Quality location estimate: Erh: 1 km, Erz: 0.8 km, Nf: 20, Gap: 82 °, Rms: 0.26

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.
DIX	CH	2025-07-01 05:27:48.390	0.014	0	-0.01	1.92	2025-07-01 05:27:51.348	0.250	6	-0.55	0.64	24.2
SATI	GU	2025-07-01 05:27:48.820	0.013	0	0.03	1.86	2025-07-01 05:27:52.079	0.075	2	-0.60	0.64	25.9
REMY	GU	2025-07-01 05:27:49.600	0.054	2	-0.05	1.58	2025-07-01 05:27:53.660	0.096	2	-0.55	0.62	31.9
CIRO	GU	2025-07-01 05:27:49.941	0.020	0	-0.04	1.66	2025-07-01 05:27:53.839	0.094	2	-0.93	0.33	33.7
VANNI	CH	2025-07-01 05:27:50.412	0.060	2	0.43	0.62	--:--	-.---	-	-.--	-.--	35.2
MMK	CH	2025-07-01 05:27:50.767	0.060	2	0.42	0.63	2025-07-01 05:27:54.755	0.112	3	-0.46	0.58	37.0
MRGE	IV	2025-07-01 05:27:51.170	0.027	1	0.14	1.12	2025-07-01 05:27:56.140	0.360	7	-0.53	0.70	40.9
EMBD	CH	2025-07-01 05:27:51.266	0.120	5	-0.03	1.37	2025-07-01 05:27:56.035	0.133	4	-0.73	0.57	42.0
SENIN	CH	2025-07-01 05:27:53.760	0.030	1	0.11	1.34	--:--	-.---	-	-.--	-.--	55.4
LSD	GU	2025-07-01 05:27:54.001	0.080	3	0.19	1.05	2025-07-01 05:28:00.106	0.349	7	-1.10	0.28	58.8

Local magnitude (M_L) calculation results

Station	Net	Channels	Stat. Mag.	Wood-And. Ampl.	Dist. (km)	Azimuth
DIX	CH	HH	0.98	1.78e-1	24.2	331
SATI	GU	HH	0.67	4.39e-2	25.9	96
REMY	GU	HH	0.63	4.73e-2	31.9	258
CIRO	GU	HH	0.72	2.84e-2	33.7	177
MMK	CH	HH	0.66	2.03e-2	37.0	62
MRGE	IV	HH	0.70	2.93e-2	40.9	250
EMBD	CH	HH	0.35	1.46e-2	42.0	32
LSD	GU	HH	0.52	1.07e-2	58.8	214

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.
(°)

DIX

HHZ

4.2041e-5

3.4576e-6

9.2471e-7

3.3737e-7

1.4039e-7

3.8324e-5

3.1652e-6

2.3776e-7

7.0668e-8

24.2

331

DIX

HHN

6.2628e-5

5.2890e-6

1.3447e-6

4.6104e-7

1.9498e-7

5.5078e-5

4.9892e-6

3.8176e-7

1.0455e-7

24.2

331

DIX

HHE

7.2159e-5

5.7349e-6

1.2067e-6

4.4045e-7

2.1827e-7

5.6822e-5

5.2665e-6

4.0053e-7

1.1465e-7

24.2

331

SATI

HHZ

6.1797e-6

6.1580e-7

1.2966e-7

5.1326e-8

2.4926e-8

8.9397e-6

4.8781e-7

4.4241e-8

1.0473e-8

25.9

SATI

HHN

1.6871e-5

1.4573e-6

2.4548e-7

8.1755e-8

4.5907e-8

1.3891e-5

9.8747e-7

1.0896e-7

3.2399e-8

25.9

SATI

HHE

9.4449e-6

1.0422e-6

2.2612e-7

8.8671e-8

3.8463e-8

1.7541e-5

8.0565e-7

7.8589e-8

1.9918e-8

25.9

REMY

HHZ

6.8011e-6

6.1548e-7

1.9864e-7

5.2830e-8

2.5238e-8

8.5624e-6

7.8830e-7

4.8124e-8

1.0566e-8

31.9

258

REMY

HHN

1.0838e-5

1.4044e-6

3.4473e-7

9.2255e-8

5.8182e-8

1.4501e-5

1.0515e-6

1.1397e-7

2.9105e-8

31.9

258

REMY

HHE

6.4182e-6

8.1439e-7

3.5765e-7

8.7617e-8

4.2318e-8

1.0265e-5

1.3083e-6

8.0048e-8

1.7297e-8

31.9

258

CIRO

HHZ

4.1182e-6

4.5021e-7

2.0127e-7

7.3632e-8

3.4345e-8

4.8744e-6

1.1329e-6

4.9066e-8

9.4258e-9

33.7

177

CIRO

HHN

5.2948e-6

4.7585e-7

1.9631e-7

7.1025e-8

3.1769e-8

9.8998e-6

8.9380e-7

5.7832e-8

1.1984e-8

33.7

177

CIRO

HHE

7.9665e-6

6.6161e-7

1.7039e-7

7.5499e-8

3.6773e-8

5.4242e-6

9.4367e-7

6.4190e-8

1.1852e-8

33.7

177

MMK

HHZ

3.1755e-6

3.7189e-7

1.8103e-7

7.5382e-8

3.0420e-8

6.6830e-6

6.4072e-7

5.2023e-8

1.0119e-8

37.0

MMK

HHN

3.7529e-6

4.1920e-7

1.9780e-7

5.9754e-8

2.6990e-8

7.0690e-6

8.8624e-7

4.7931e-8

9.8084e-9

37.0

MMK

HHE

6.0599e-6

4.6615e-7

1.6247e-7

5.9832e-8

2.9826e-8

5.0034e-6

5.0823e-7

5.5371e-8

1.0527e-8

37.0

MRGE

HHZ

5.8184e-6

5.0262e-7

1.0895e-7

5.1846e-8

2.0008e-8

5.5663e-6

4.7359e-7

3.7362e-8

9.1003e-9

40.9

250

MRGE

HHN

8.2545e-6

8.0957e-7

1.9127e-7

5.9794e-8

3.5714e-8

1.5861e-5

8.6256e-7

6.3589e-8

1.6525e-8

40.9

250

MRGE

HHE

7.1004e-6

6.5305e-7

1.3953e-7

6.6917e-8

2.6190e-8

6.2716e-6

4.3993e-7

4.8073e-8

1.1855e-8

40.9

250

EMBD

HHZ

3.0838e-6

2.5308e-7

1.1993e-7

4.8955e-8

1.9164e-8

3.7389e-6

4.5728e-7

2.8895e-8

6.2522e-9

42.0

EMBD

HHN

3.7402e-6

3.2347e-7

1.2280e-7

3.9203e-8

1.6211e-8

6.6255e-6

5.6275e-7

3.0995e-8

6.9691e-9

42.0

EMBD

HHE

3.0758e-6

2.9103e-7

1.2186e-7

5.0251e-8

2.7004e-8

2.6259e-6

5.0378e-7

3.8882e-8

6.3173e-9

42.0

LSD

HHZ

2.0361e-6

2.3360e-7

9.0624e-8

3.3866e-8

1.1738e-8

2.9648e-6

3.9329e-7

1.9065e-8

4.3627e-9

58.8

214

LSD

HHN

2.6566e-6

2.3619e-7

8.7321e-8

2.3669e-8

1.1681e-8

2.7005e-6

5.0757e-7

2.0678e-8

4.9645e-9

58.8

214

LSD

HHE

3.1615e-6

2.8221e-7

1.0076e-7

2.7091e-8

1.3103e-8

4.0642e-6

4.6291e-7

2.4641e-8

5.4234e-9

58.8

214

*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): 0.6 2025-07-01 05:27:43 (UTC)

MANUAL Location - Area: Alpi Pennine , magnitude (M_L): 0.6
2025-07-01 05:27:43 (UTC)