RsniPicker2 Automatic Earthquake Location

AUTOMATIC Location - Area: Costa toscana settentrionale , magnitude (M_L): 1.7
2026-04-14 02:37:08 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2026-04-14 02:41:39

Earthquake info - RsniPicker₂ automatic location

Event - ID :	260414023643
Magnitude (M_L) :	1.7 +/- 0.3
Origin Time :	2026-04-14 02:37:08.4 (UTC)
Location :	Latitude: 43.856 N, Longitude: 10.007 E
Area :	Costa toscana settentrionale
Depth (km) :	9.10
Distances (km) :	18.0 --- Forte dei Marmi (LU) 19.5 --- Viareggio (LU) 21.1 --- Massa (MS) 21.4 --- Pietrasanta (LU) 22.3 --- Carrara (MS) 22.7 --- Montignoso (MS) 23.6 --- Seravezza (LU) 23.9 --- Ameglia (SP) 25.7 --- Lerici (SP) 25.7 --- Camaiore (LU) 26.2 --- Portovenere (SP) 26.3 --- Ortonovo (SP) 26.7 --- Massarosa (LU) 27.2 --- Castelnuovo Magra (SP) 28.1 --- Stazzema (LU) 28.7 --- Sarzana (SP) 30.1 --- Arcola (SP) 31.2 --- Fosdinovo (MS) 31.7 --- La Spezia (SP) 31.7 --- Vecchiano (PI)

Quality location estimate:
Erh: 2 km, Erz: 2.8 km, Nf: 22, Gap: 199°, Rms: 0.33 s
Stazioni validate: 13

RsniPicker₂ - Automatic location results

Station	Net	P arrival times	P pick err	P pick weight	P res	Nll weight	S arrival time	S pick err	S pick weight	S res	Nll weight	Dist.
PLMA	IV	2026-04-14 02:37:12.330	0.012	0	-1.21	0.21	--:--	-.---	-	-.--	-.--	26.4
EQUI	GU	2026-04-14 02:37:14.780	0.021	0	-0.35	0.62	2026-04-14 02:37:19.180	0.203	2	-0.86	0.48	37.6
MAIM	GU	2026-04-14 02:37:15.970	0.023	0	-0.03	1.54	2026-04-14 02:37:20.906	0.126	2	-0.69	0.52	40.4
CARD	GU	2026-04-14 02:37:16.299	0.030	0	0.25	1.09	2026-04-14 02:37:21.655	0.165	2	-0.03	1.35	43.5
PII	IV	2026-04-14 02:37:17.000	0.030	0	-0.01	1.56	2026-04-14 02:37:22.799	0.135	2	-0.50	0.68	45.1
VLC	MN	2026-04-14 02:37:16.670	0.026	0	0.33	0.80	2026-04-14 02:37:22.379	0.139	2	0.17	1.28	46.3
SARM	GU	2026-04-14 02:37:17.100	0.027	0	0.07	1.55	2026-04-14 02:37:22.950	0.328	2	-0.48	0.83	49.1
POPM	GU	2026-04-14 02:37:19.850	0.035	0	0.21	1.26	2026-04-14 02:37:28.120	0.193	2	0.08	1.22	64.3
GRAM	GU	2026-04-14 02:37:20.510	0.037	0	-0.09	1.35	--:--	-.---	-	-.--	-.--	71.4
GSCL	GU	2026-04-14 02:37:21.350	0.039	0	-0.05	1.44	2026-04-14 02:37:30.454	0.222	2	-0.54	0.75	72.5
GORR	GU	2026-04-14 02:37:24.950	0.050	0	-0.99	0.40	2026-04-14 02:37:37.983	0.412	2	-0.83	0.58	101.5
RNCA	GU	2026-04-14 02:37:26.549	0.057	1	0.14	1.33	--:--	-.---	-	-.--	-.--	108.9
RUFI	IV	2026-04-14 02:37:29.240	0.212	2	-0.13	1.16	--:--	-.---	-	-.--	-.--	120.9

RsniPicker₂ - Automatic magnitude (M_L) calculation results

Station	Net	Stat. Mag.	Wood-And. Ampl.	Dist. (km)	Azimuth	Used
PLMA	IV	1.50	5.00e-1	26.4	330	SI
EQUI	GU	1.30	1.77e-1	37.6	19	SI
MAIM	GU	1.60	2.24e-1	40.4	81	SI
CARD	GU	2.10	7.16e-1	43.5	64	SI
PII	IV	1.50	1.69e-1	45.1	109	SI
SARM	GU	1.50	2.01e-1	49.1	41	SI
POPM	GU	2.10	7.13e-1	64.3	71	SI
GRAM	GU	1.70	2.09e-1	71.4	4	SI
GSCL	GU	2.10	2.86e-1	72.5	40	SI
GORR	GU	1.90	7.33e-2	101.5	326	SI
RNCA	GU	1.80	5.15e-2	108.9	309	SI

Results of PGA, PGV, IH, spectral amplitudes (SA) values calculation

Station

Net

Channel

PGA
(g)

PGV
(m/s)

PGD
(m)

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.
(°)

PLMA

HHZ

3.5550e-5

4.5195e-6

0.0000e+0

3.3485e-6

5.8115e-6

8.0936e-6

7.5644e-5

1.3102e-5

6.1745e-7

1.1897e-7

26.4

330

PLMA

HHN

4.7780e-5

6.0647e-6

0.0000e+0

4.3886e-6

7.7005e-6

1.5831e-4

1.3783e-5

1.0311e-6

1.5768e-7

26.4

330

PLMA

HHE

4.6882e-5

7.0379e-6

0.0000e+0

6.2254e-6

1.0154e-5

1.3546e-5

1.3525e-4

2.9164e-5

1.1895e-6

1.2232e-7

26.4

330

EQUI

HHZ

8.4647e-6

1.9806e-6

0.0000e+0

1.0555e-6

1.8002e-6

2.5042e-6

1.7824e-5

5.2883e-6

3.0884e-7

3.8544e-8

37.6

EQUI

HHN

1.0660e-5

1.6197e-6

0.0000e+0

1.2005e-6

2.1265e-6

3.2669e-5

4.3282e-6

3.0472e-7

4.8301e-8

37.6

EQUI

HHE

1.7764e-5

3.1173e-6

0.0000e+0

1.0449e-6

1.9050e-6

2.7534e-6

2.9919e-5

5.4605e-6

3.6519e-7

4.8897e-8

37.6

MAIM

HHZ

1.7954e-5

2.4463e-6

0.0000e+0

1.5631e-6

2.9514e-6

4.1830e-6

4.2448e-5

5.5738e-6

3.3030e-7

5.7460e-8

40.4

MAIM

HHN

2.2043e-5

3.5333e-6

0.0000e+0

2.2752e-6

3.9478e-6

3.9491e-5

9.7491e-6

5.6211e-7

9.0555e-8

40.4

MAIM

HHE

2.3281e-5

3.9291e-6

0.0000e+0

2.6869e-6

4.6615e-6

6.4584e-6

5.6472e-5

7.0150e-6

5.2559e-7

9.5205e-8

40.4

CARD

HHZ

4.3335e-5

5.5082e-6

0.0000e+0

3.0084e-6

5.6203e-6

8.0226e-6

9.1854e-5

6.6827e-6

4.8810e-7

1.1346e-7

43.5

CARD

HHN

9.7755e-5

1.3412e-5

0.0000e+0

8.9001e-6

1.5184e-5

2.7719e-4

1.6327e-5

1.4418e-6

3.0922e-7

43.5

CARD

HHE

7.5876e-5

1.2533e-5

0.0000e+0

7.8140e-6

1.4309e-5

2.0342e-5

2.9916e-4

1.6891e-5

1.4049e-6

2.4772e-7

43.5

PII

HHZ

1.1849e-5

2.4509e-6

0.0000e+0

1.6160e-6

2.9993e-6

4.1434e-6

2.0620e-5

4.4206e-6

3.2274e-7

4.4993e-8

45.1

109

PII

HHN

1.1496e-5

1.8265e-6

0.0000e+0

1.5132e-6

2.6435e-6

3.1767e-5

5.2339e-6

3.3568e-7

4.6648e-8

45.1

109

PII

HHE

1.0427e-5

1.8803e-6

0.0000e+0

1.5798e-6

2.6720e-6

3.5832e-6

3.5303e-5

9.1940e-6

2.7453e-7

4.5773e-8

45.1

109

VLC

HHZ

1.3015e-5

2.3497e-6

0.0000e+0

1.4673e-6

2.5904e-6

3.6199e-6

2.9504e-5

3.6180e-6

3.1077e-7

5.0751e-8

46.3

-1

VLC

HHN

1.4753e-5

2.2449e-6

0.0000e+0

1.8582e-6

3.0572e-6

4.8980e-5

5.0320e-6

3.7791e-7

4.9209e-8

46.3

-1

VLC

HHE

2.8257e-5

5.3623e-6

0.0000e+0

3.3556e-6

6.0625e-6

8.6389e-6

1.1927e-4

7.2269e-6

5.3027e-7

1.1583e-7

46.3

-1

SARM

EHZ

5.8668e-6

1.4219e-6

0.0000e+0

1.0741e-6

1.7785e-6

2.4244e-6

2.4410e-5

4.5236e-6

2.8776e-7

4.2787e-8

49.1

SARM

EHN

9.4120e-6

1.6501e-6

0.0000e+0

1.6164e-6

2.7433e-6

3.9687e-5

7.0158e-6

5.3801e-7

4.5887e-8

49.1

SARM

EHE

1.1881e-5

2.8563e-6

0.0000e+0

1.5315e-6

3.1022e-6

4.5326e-6

4.3216e-5

6.2889e-6

3.7076e-7

6.0111e-8

49.1

POPM

HHZ

3.2712e-5

6.4043e-6

0.0000e+0

3.8372e-6

7.0681e-6

1.0127e-5

7.9864e-5

1.3004e-5

6.6267e-7

1.5111e-7

64.3

POPM

HHN

4.8724e-5

9.3317e-6

0.0000e+0

6.5903e-6

1.0789e-5

1.3418e-4

2.1492e-5

9.8007e-7

1.8799e-7

64.3

POPM

HHE

4.4165e-5

9.3193e-6

0.0000e+0

7.6342e-6

1.2329e-5

1.6849e-5

1.2546e-4

3.7162e-5

1.7058e-6

2.7637e-7

64.3

GRAM

HHZ

5.6664e-6

1.0487e-6

0.0000e+0

9.3706e-7

1.5710e-6

2.1155e-6

1.2436e-5

3.5240e-6

2.7003e-7

3.7489e-8

71.4

GRAM

HHN

0.0000e+0

-1.0000e+0

71.4

GRAM

HHE

7.1451e-6

2.0061e-6

0.0000e+0

2.2550e-6

3.6084e-6

4.6375e-6

1.9754e-5

1.1011e-5

5.6664e-7

5.7609e-8

71.4

GSCL

HHZ

3.1581e-6

6.6719e-7

0.0000e+0

7.0334e-7

1.2210e-6

1.6111e-6

1.2525e-5

3.8085e-6

2.8845e-7

2.5432e-8

72.5

GSCL

HHN

6.0707e-6

2.1491e-6

0.0000e+0

2.1231e-6

3.4414e-6

1.8902e-5

1.2277e-5

5.1952e-7

5.4492e-8

72.5

GSCL

HHE

9.3075e-6

2.7486e-6

0.0000e+0

2.3846e-6

4.1357e-6

5.6573e-6

1.7650e-5

1.0508e-5

6.4797e-7

8.3497e-8

72.5

GORR

HHZ

2.2501e-6

5.7666e-7

0.0000e+0

4.8091e-7

8.8172e-7

1.1902e-6

6.0581e-6

2.0186e-6

2.2306e-7

2.1107e-8

101.5

326

GORR

HHN

3.6236e-6

7.7758e-7

0.0000e+0

8.2297e-7

1.3028e-6

9.9004e-6

4.6184e-6

2.2533e-7

2.8619e-8

101.5

326

GORR

HHE

2.8260e-6

7.4073e-7

0.0000e+0

6.9058e-7

1.0905e-6

1.4375e-6

1.1349e-5

2.4310e-6

2.0050e-7

2.5715e-8

101.5

326

RNCA

HHZ

2.1174e-5

4.5352e-6

0.0000e+0

4.6337e-6

7.7201e-6

1.0431e-5

8.3668e-5

2.2633e-5

2.6918e-6

2.3323e-7

108.9

309

RNCA

HHN

1.8400e-5

4.6830e-6

0.0000e+0

4.8683e-6

8.0067e-6

5.8875e-5

2.1052e-5

1.5791e-6

1.8942e-7

108.9

309

RNCA

HHE

3.8565e-5

8.3176e-6

0.0000e+0

8.1328e-6

1.3330e-5

1.7787e-5

1.1466e-4

2.8689e-5

1.8532e-6

3.0322e-7

108.9

309

*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)

AUTOMATIC Location - Area: Costa toscana settentrionale , magnitude (ML): 1.7 2026-04-14 02:37:08 (UTC)

AUTOMATIC Location - Area: Costa toscana settentrionale , magnitude (M_L): 1.7
2026-04-14 02:37:08 (UTC)