RSNI - Manually revised location

MANUAL Location - Area: Appennino modenese , magnitude (M_L): 0.8
2024-12-21 18:21:43 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2024-12-23 09:59:15

Earthquake info - Manual location

Event - ID :	241221182017
Magnitude (M_L) :	0.8 +/- 0.2
Origin Time :	2024-12-21 18:21:43.691 (UTC)
Location :	Latitude: 44.306 N, Longitude: 10.773 E
Area :	Appennino modenese
Depth (km) :	9.52
Distances (km) :	3.3 --- Lama Mocogno 5.9 --- Pavullo nel Frignano 5.9 --- Polinago 7.7 --- Montecreto 8.4 --- Sestola 10.1 --- Palagano 11.0 --- Fanano 12.7 --- Riolunato 13.2 --- Montefiorino 13.5 --- Serramazzoni 14.2 --- Montese 15.9 --- Frassinoro 16.3 --- Prignano sulla Secchia 16.7 --- Pievepelago 17.1 --- Fiumalbo 17.5 --- Gaggio Montano 18.2 --- Zocca 18.5 --- Castel d Aiano 18.6 --- Lizzano in Belvedere 18.7 --- Toano

Quality location estimate: Erh: 0.8 km, Erz: 1.3 km, Nf: 16, Gap: 143 °, Rms: 0.15

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.
ZCCA	IV	2024-12-21 18:21:47.703	0.020	0	-0.68	0.21	2024-12-21 18:21:52.032	0.040	0	0.02	1.68	19.8
POPM	GU	2024-12-21 18:21:49.510	0.007	0	0.00	1.93	2024-12-21 18:21:53.820	0.097	2	-0.04	1.35	30.7
BDI	IV	2024-12-21 18:21:49.800	0.008	0	-0.04	1.78	2024-12-21 18:21:54.080	0.099	2	-0.35	0.35	32.2
SARM	GU	2024-12-21 18:21:50.200	0.014	0	0.03	1.82	2024-12-21 18:21:54.950	0.108	3	-0.07	1.22	34.3
CARD	GU	2024-12-21 18:21:51.090	0.012	0	0.01	1.81	2024-12-21 18:21:56.612	0.040	0	0.05	1.35	40.1
MAIM	GU	2024-12-21 18:21:52.290	0.016	0	-0.56	0.27	2024-12-21 18:21:59.871	0.040	0	0.28	0.45	50.1
SEI	IV	2024-12-21 18:21:52.606	0.100	4	-1.56	0.02	2024-12-21 18:22:01.620	0.403	8	-0.91	0.23	55.3
GRAM	GU	2024-12-21 18:21:54.995	0.020	0	-0.00	1.53	2024-12-21 18:22:04.255	0.040	0	1.04	0.00	60.7

Local magnitude (M_L) calculation results

Station	Net	Channels	Stat. Mag.	Wood-And. Ampl.	Dist. (km)	Azimuth
ZCCA	IV	HH	0.55	9.66e-2	19.8	73
POPM	GU	HH	0.59	9.45e-2	30.7	183
BDI	IV	HH	0.86	9.88e-2	32.2	207
SARM	GU	EH	0.81	7.42e-2	34.3	246
CARD	GU	HH	1.17	1.06e-1	40.1	217
MAIM	GU	HH	0.48	1.23e-2	50.1	207
SEI	IV	HH	0.98	3.51e-2	55.3	121
GRAM	GU	HH	0.97	5.18e-2	60.7	290

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.
(°)

ZCCA

HHZ

2.7472e-6

4.3788e-7

4.0547e-7

2.6819e-7

1.2193e-7

6.1730e-6

2.0579e-6

1.2587e-7

1.2481e-8

19.8

ZCCA

HHN

2.4936e-6

5.3859e-7

5.5347e-7

4.3131e-7

1.7465e-7

5.4941e-6

3.8136e-6

2.1370e-7

1.8463e-8

19.8

ZCCA

HHE

2.5697e-6

6.4078e-7

7.4630e-7

5.4866e-7

1.8710e-7

9.0062e-6

4.4384e-6

2.2183e-7

2.5397e-8

19.8

POPM

HHZ

4.2320e-5

5.2753e-6

5.3404e-7

1.1410e-7

6.1139e-8

2.1340e-5

1.9835e-6

1.1350e-7

2.3379e-8

30.7

183

POPM

HHN

2.8361e-5

2.7011e-6

9.7027e-7

2.2560e-7

1.0891e-7

2.3299e-5

3.1740e-6

1.7800e-7

3.5994e-8

30.7

183

POPM

HHE

1.3082e-5

1.9396e-6

8.2633e-7

1.8639e-7

9.5411e-8

1.7281e-5

3.7410e-6

1.4202e-7

2.6364e-8

30.7

183

BDI

HHZ

1.5649e-5

1.4211e-6

4.5785e-7

1.0817e-7

6.0697e-8

2.6717e-5

1.8742e-6

1.1478e-7

2.3576e-8

32.2

207

BDI

HHN

1.2169e-5

1.7677e-6

9.2145e-7

2.7113e-7

1.1886e-7

2.2962e-5

3.5928e-6

1.6527e-7

4.1005e-8

32.2

207

BDI

HHE

1.5499e-5

1.7029e-6

7.7732e-7

1.8219e-7

1.1219e-7

3.7347e-5

3.3182e-6

2.0802e-7

3.9879e-8

32.2

207

SARM

EHZ

4.2743e-6

6.0440e-7

3.6852e-7

1.4862e-7

6.3040e-8

6.9999e-6

2.2868e-6

8.5566e-8

1.4345e-8

34.3

246

SARM

EHN

4.3413e-6

4.9613e-7

3.6185e-7

2.1259e-7

8.1189e-8

1.2649e-5

1.1825e-6

1.0655e-7

1.6062e-8

34.3

246

SARM

EHE

4.9660e-6

8.2089e-7

5.7390e-7

3.0771e-7

1.1549e-7

1.3991e-5

3.3393e-6

1.5617e-7

2.0983e-8

34.3

246

CARD

HHZ

1.0267e-5

1.4854e-6

3.4278e-7

1.0899e-7

5.1122e-8

1.8568e-5

1.1478e-6

8.2105e-8

2.3163e-8

40.1

217

CARD

HHN

1.9705e-5

2.2298e-6

8.2331e-7

2.4483e-7

1.4064e-7

3.8126e-5

2.0708e-6

2.3811e-7

4.2911e-8

40.1

217

CARD

HHE

1.7074e-5

2.2789e-6

9.3415e-7

2.0570e-7

1.1421e-7

5.0879e-5

2.4338e-6

2.0507e-7

4.5968e-8

40.1

217

MAIM

HHZ

7.3746e-7

1.0753e-7

6.7717e-8

3.5849e-8

2.2429e-8

1.8175e-6

3.7509e-7

2.4729e-8

3.4488e-9

50.1

207

MAIM

HHN

1.1093e-6

1.6621e-7

1.2956e-7

5.1916e-8

2.2860e-8

2.5526e-6

7.8067e-7

2.5000e-8

4.4114e-9

50.1

207

MAIM

HHE

8.3779e-7

1.5130e-7

1.2601e-7

5.3393e-8

2.3743e-8

2.5796e-6

5.6901e-7

2.7317e-8

3.7948e-9

50.1

207

SEI

HHZ

6.8603e-7

1.4184e-7

1.5917e-7

5.8965e-8

2.5159e-8

1.6336e-6

9.7639e-7

3.8041e-8

4.3376e-9

55.3

121

SEI

HHN

7.8099e-7

2.9582e-7

2.9648e-7

2.2551e-7

7.7707e-8

1.5665e-6

1.2786e-6

8.2994e-8

1.5185e-8

55.3

121

SEI

HHE

2.6742e-6

2.6939e-7

1.9890e-7

1.4580e-7

5.6686e-8

2.5182e-6

1.1725e-6

8.2702e-8

1.0044e-8

55.3

121

GRAM

HHZ

1.2301e-6

1.6811e-7

1.2366e-7

4.6419e-8

1.9321e-8

2.6118e-6

7.5075e-7

2.8742e-8

3.9727e-9

60.7

290

GRAM

HHN

1.3672e-6

2.7790e-7

2.6521e-7

1.7500e-7

6.8495e-8

2.3187e-6

1.3597e-6

9.0977e-8

1.0954e-8

60.7

290

GRAM

HHE

1.4368e-6

4.5538e-7

4.1463e-7

2.6250e-7

1.1999e-7

4.8554e-6

2.0266e-6

2.2355e-7

1.6378e-8

60.7

290

*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 modenese , magnitude (ML): 0.8 2024-12-21 18:21:43 (UTC)

MANUAL Location - Area: Appennino modenese , magnitude (M_L): 0.8
2024-12-21 18:21:43 (UTC)