RSNI - Manually revised location

MANUAL Location - Area: Appennino bolognese , magnitude (M_L): 1.4
2026-02-13 04:35:35 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2026-02-13 07:19:50

Earthquake info - Manual location

Event - ID :	260213043435
Magnitude (M_L) :	1.4 +/- 0.2
Origin Time :	2026-02-13 04:35:35.105 (UTC)
Location :	Latitude: 44.195 N, Longitude: 11.323 E
Area :	Appennino bolognese
Depth (km) :	14.40
Distances (km) :	3.0 --- Monghidoro 7.5 --- San Benedetto Val di Sambro 8.5 --- Loiano 9.4 --- Firenzuola 10.4 --- Monzuno 14.1 --- Castiglione dei Pepoli 14.6 --- Castel del Rio 15.3 --- Grizzana Morandi 16.0 --- Monterenzio 18.8 --- Camugnano 18.9 --- Marzabotto 19.5 --- Vergato 20.0 --- Palazzuolo sul Senio 20.2 --- Fontanelice 20.5 --- Vernio 20.9 --- Pianoro 22.2 --- Scarperia 22.2 --- Barberino di Mugello 23.0 --- Castel di Casio 23.1 --- Borgo Tossignano

Quality location estimate: Erh: 0.5 km, Erz: 0.8 km, Nf: 22, Gap: 89 °, Rms: 0.28

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.
MTRZ	IV	2026-02-13 04:35:39.350	0.015	0	0.01	2.35	2026-02-13 04:35:43.550	0.114	3	0.83	0.39	21.5
ZCCA	IV	2026-02-13 04:35:42.780	0.023	1	-0.05	2.10	2026-02-13 04:35:49.894	0.040	0	0.91	0.37	35.9
LMD	IV	2026-02-13 04:35:42.020	0.022	1	-0.83	0.14	2026-02-13 04:35:47.407	0.406	8	-1.51	0.08	36.3
IMOL	IV	2026-02-13 04:35:43.482	0.020	0	0.01	2.20	2026-02-13 04:35:51.013	0.040	0	0.82	0.38	40.7
RUFI	IV	2026-02-13 04:35:43.770	0.028	1	-0.04	2.09	2026-02-13 04:35:50.383	0.266	7	-0.06	1.15	44.7
POPM	GU	2026-02-13 04:35:44.494	0.020	0	0.09	1.77	2026-02-13 04:35:51.422	0.040	0	-0.00	1.69	50.4
CARD	GU	2026-02-13 04:35:49.353	0.020	0	1.31	0.10	2026-02-13 04:35:59.279	0.040	0	1.70	0.19	71.2
MAIM	GU	2026-02-13 04:35:48.826	0.020	0	0.14	1.42	2026-02-13 04:35:58.598	0.040	0	-0.05	1.35	74.9
SARM	GU	2026-02-13 04:35:50.551	0.020	0	1.75	0.15	2026-02-13 04:36:01.538	0.040	0	2.54	0.01	75.1
OSSC	IV	2026-02-13 04:35:49.192	0.020	0	-0.03	1.80	2026-02-13 04:35:59.713	0.040	0	0.32	0.81	76.4
PII	IV	2026-02-13 04:35:50.160	0.053	2	-0.15	1.31	2026-02-13 04:36:00.435	0.040	0	-1.01	0.17	83.9

Local magnitude (M_L) calculation results

Station	Net	Channels	Stat. Mag.	Wood-And. Ampl.	Dist. (km)	Azimuth
MTRZ	IV	HH	1.72	1.21e+0	21.5	32
ZCCA	IV	HH	1.03	9.46e-2	35.9	302
POPM	GU	HH	1.32	1.91e-1	50.4	250
CARD	GU	HH	1.62	9.11e-2	71.2	255
MAIM	GU	HH	1.47	5.09e-2	74.9	245
SARM	GU	EH	1.54	8.03e-2	75.1	269
OSSC	IV	HH	1.20	2.92e-2	76.4	185
PII	IV	HH	1.55	5.35e-2	83.9	231

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.
(°)

MTRZ

HHZ

2.8641e-5

3.7848e-6

3.2954e-6

1.6538e-6

6.5796e-7

4.1488e-5

2.4678e-5

8.6931e-7

1.0805e-7

21.5

MTRZ

HHN

3.3165e-5

1.1860e-5

9.4256e-6

5.0955e-6

2.0426e-6

7.2297e-5

5.9071e-5

2.4055e-6

3.7406e-7

21.5

MTRZ

HHE

2.5469e-5

8.7584e-6

8.3689e-6

4.9902e-6

1.6440e-6

8.2483e-5

4.8523e-5

2.2157e-6

2.6517e-7

21.5

ZCCA

HHZ

2.2452e-6

4.7568e-7

4.4473e-7

3.2689e-7

1.8472e-7

4.9648e-6

2.9112e-6

2.1822e-7

1.3422e-8

35.9

302

ZCCA

HHN

1.7210e-6

6.5773e-7

7.2994e-7

6.6955e-7

2.1718e-7

3.7445e-6

3.0737e-6

2.4858e-7

2.5093e-8

35.9

302

ZCCA

HHE

1.8418e-6

6.0501e-7

6.5755e-7

6.0392e-7

2.4279e-7

3.8852e-6

3.4499e-6

2.9341e-7

2.4756e-8

35.9

302

POPM

HHZ

3.4459e-6

8.1486e-7

8.1439e-7

4.0562e-7

1.2931e-7

9.5486e-6

4.5956e-6

1.6074e-7

2.4174e-8

50.4

250

POPM

HHN

7.9022e-6

2.0808e-6

1.8301e-6

8.6043e-7

2.5711e-7

1.8262e-5

7.1837e-6

3.5406e-7

5.8733e-8

50.4

250

POPM

HHE

5.6691e-6

1.6339e-6

1.4554e-6

3.7351e-7

1.9414e-7

1.4878e-5

1.0273e-5

2.6763e-7

3.8489e-8

50.4

250

CARD

HHZ

1.8709e-6

4.1012e-7

3.4496e-7

1.7338e-7

6.0777e-8

3.2465e-6

1.9423e-6

8.3250e-8

1.1510e-8

71.2

255

CARD

HHN

2.8587e-6

7.8629e-7

7.2692e-7

4.2654e-7

1.6527e-7

8.6690e-6

3.8431e-6

2.3417e-7

2.4373e-8

71.2

255

CARD

HHE

2.1833e-6

5.7470e-7

4.5595e-7

3.3087e-7

1.4871e-7

5.8396e-6

2.3157e-6

1.6801e-7

1.9587e-8

71.2

255

MAIM

HHZ

7.7014e-7

2.4282e-7

2.5486e-7

1.9323e-7

7.2657e-8

2.5243e-6

1.5880e-6

8.6233e-8

9.6002e-9

74.9

245

MAIM

HHN

8.2443e-7

3.0371e-7

2.7379e-7

2.4124e-7

1.1284e-7

2.3242e-6

1.5345e-6

1.1565e-7

9.9810e-9

74.9

245

MAIM

HHE

7.5525e-7

3.5221e-7

3.2123e-7

3.5438e-7

1.2695e-7

2.0440e-6

1.5086e-6

1.5344e-7

1.2047e-8

74.9

245

SARM

EHZ

1.0168e-6

2.5443e-7

2.3858e-7

1.5050e-7

5.9881e-8

2.4305e-6

1.3031e-6

8.0739e-8

9.1408e-9

75.1

269

SARM

EHN

1.1268e-6

5.2283e-7

4.4765e-7

5.1012e-7

1.7445e-7

1.7350e-6

1.5397e-6

2.0636e-7

1.8836e-8

75.1

269

SARM

EHE

1.1422e-6

6.2586e-7

5.0809e-7

4.6017e-7

1.8704e-7

2.1154e-6

3.7368e-6

2.2398e-7

2.2922e-8

75.1

269

OSSC

HHZ

8.5401e-7

1.8740e-7

1.4922e-7

9.9053e-8

3.9920e-8

2.2744e-6

6.1591e-7

4.5694e-8

6.1448e-9

76.4

185

OSSC

HHN

7.6984e-7

2.2950e-7

1.9166e-7

1.3029e-7

5.4785e-8

1.9983e-6

9.7306e-7

8.5308e-8

9.1036e-9

76.4

185

OSSC

HHE

9.8027e-7

2.6221e-7

2.5004e-7

1.8564e-7

7.6060e-8

2.1512e-6

1.2347e-6

9.6735e-8

9.5964e-9

76.4

185

PII

HHZ

1.1425e-6

3.6741e-7

3.1249e-7

1.3552e-7

7.0028e-8

3.3939e-6

1.5624e-6

8.1474e-8

8.9634e-9

83.9

231

PII

HHN

1.0534e-6

4.5379e-7

4.1257e-7

2.2638e-7

8.2228e-8

1.6493e-6

2.7536e-6

1.0385e-7

1.3153e-8

83.9

231

PII

HHE

1.0384e-6

4.5638e-7

4.3673e-7

3.0577e-7

1.1745e-7

1.9412e-6

2.3827e-6

1.5877e-7

1.4338e-8

83.9

231

*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: Appennino bolognese , magnitude (ML): 1.4 2026-02-13 04:35:35 (UTC)

MANUAL Location - Area: Appennino bolognese , magnitude (M_L): 1.4
2026-02-13 04:35:35 (UTC)