RSNI - Manually revised location

MANUAL Location - Area: Appennino forlivese , magnitude (M_L): 1.9
2024-12-19 13:58:23 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2024-12-20 08:07:33

Earthquake info - Manual location

Event - ID :	241219135720
Magnitude (M_L) :	1.9 +/- 0.2
Origin Time :	2024-12-19 13:58:23.546 (UTC)
Location :	Latitude: 44.124 N, Longitude: 12.034 E
Area :	Appennino forlivese
Depth (km) :	12.90
Distances (km) :	2.2 --- Meldola 4.6 --- Predappio 8.5 --- Bertinoro 8.8 --- Castrocaro Terme e Terra del Sole 10.4 --- Forlimpopoli 10.6 --- Forli 11.7 --- Dovadola 14.8 --- Civitella di Romagna 16.8 --- Rocca San Casciano 16.8 --- Cesena 17.0 --- Galeata 19.6 --- Modigliana 22.0 --- Santa Sofia 22.1 --- Faenza 22.1 --- Montiano 22.1 --- Mercato Saraceno 22.7 --- Portico e San Benedetto 23.4 --- Brisighella 23.7 --- Tredozio 23.9 --- Longiano

Quality location estimate: Erh: 0.9 km, Erz: 1.3 km, Nf: 23, Gap: 261 °, Rms: 0.21

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.
LMD	IV	2024-12-19 13:58:29.490	0.014	0	-0.08	1.48	2024-12-19 13:58:34.590	0.089	2	0.07	1.52	29.5
IMOL	IV	2024-12-19 13:58:31.580	0.018	0	0.00	1.73	2024-12-19 13:58:38.160	0.112	3	0.03	1.39	37.3
RUFI	IV	2024-12-19 13:58:33.590	0.027	1	0.02	1.68	2024-12-19 13:58:41.850	0.163	5	0.11	1.16	54.2
MTRZ	IV	2024-12-19 13:58:34.160	0.075	3	0.10	1.49	2024-12-19 13:58:43.950	0.040	0	1.19	0.14	54.6
SEI	IV	2024-12-19 13:58:33.930	0.076	3	0.05	1.58	2024-12-19 13:58:42.490	0.169	5	0.02	1.18	56.1
ZCCA	IV	2024-12-19 13:58:40.800	0.020	0	0.03	1.43	2024-12-19 13:58:58.685	0.040	0	3.76	0.00	89.0
OSSC	IV	2024-12-19 13:58:40.704	0.020	0	0.18	1.20	2024-12-19 13:58:53.107	0.040	0	-0.24	0.80	92.9
CSNT	IV	2024-12-19 13:58:40.950	0.047	2	0.15	1.25	2024-12-19 13:58:53.319	0.040	0	-0.43	0.48	94.6
POPM	GU	2024-12-19 13:58:43.051	0.020	0	1.39	0.18	2024-12-19 13:58:57.770	0.040	0	1.90	0.07	103.2
BDI	IV	2024-12-19 13:58:45.370	0.058	2	1.45	0.17	2024-12-19 13:59:00.036	0.040	0	0.24	0.83	115.7
MAIM	GU	2024-12-19 13:58:45.771	0.020	0	0.01	1.26	2024-12-19 13:59:02.767	0.040	0	0.17	0.84	126.2
PII	IV	2024-12-19 13:58:46.220	0.065	3	-0.09	1.13	2024-12-19 13:59:02.035	0.040	0	-1.52	0.00	129.4

Local magnitude (M_L) calculation results

Station	Net	Channels	Stat. Mag.	Wood-And. Ampl.	Dist. (km)	Azimuth
MTRZ	IV	HH	2.07	4.45e-1	54.6	294
ZCCA	IV	HH	1.58	5.06e-2	89.0	287
OSSC	IV	HH	2.13	1.62e-1	92.9	224
POPM	GU	HH	1.79	1.17e-1	103.2	266
BDI	IV	HH	2.00	8.81e-2	115.7	267
MAIM	GU	HH	1.92	4.14e-2	126.2	260
PII	IV	HH	1.96	4.82e-2	129.4	250

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

5.1958e-6

2.1501e-6

2.0763e-6

1.6262e-6

4.3867e-7

1.3910e-5

9.6137e-6

5.8860e-7

6.8509e-8

54.6

294

MTRZ

HHN

7.6079e-6

2.9276e-6

3.6187e-6

1.9985e-6

6.7458e-7

1.9036e-5

2.5562e-5

7.7540e-7

8.9879e-8

54.6

294

MTRZ

HHE

8.9784e-6

3.8482e-6

3.8252e-6

2.0504e-6

6.8928e-7

1.8695e-5

2.4069e-5

9.3372e-7

1.1941e-7

54.6

294

SEI

HHZ

1.3452e-5

4.6846e-6

5.1016e-6

2.2617e-6

7.9794e-7

3.2368e-5

3.6169e-5

1.0949e-6

1.3809e-7

56.1

262

SEI

HHN

3.7424e-5

1.1996e-5

1.1920e-5

5.9823e-6

2.5864e-6

1.1121e-4

7.0619e-5

2.7069e-6

3.1549e-7

56.1

262

SEI

HHE

2.3767e-5

8.3845e-6

7.2616e-6

3.5948e-6

1.3720e-6

5.7579e-5

4.0317e-5

1.5754e-6

2.0281e-7

56.1

262

ZCCA

HHZ

8.0865e-7

1.9626e-7

2.0242e-7

1.4322e-7

7.1038e-8

2.1535e-6

1.3744e-6

9.2117e-8

8.9434e-9

89.0

287

ZCCA

HHN

7.0725e-7

2.4826e-7

2.0020e-7

1.4554e-7

7.7919e-8

1.6288e-6

9.7881e-7

7.4485e-8

8.0563e-9

89.0

287

ZCCA

HHE

8.7531e-7

2.6922e-7

2.7637e-7

2.0252e-7

6.9848e-8

1.2861e-6

1.3704e-6

9.4547e-8

7.8394e-9

89.0

287

OSSC

HHZ

4.3771e-6

1.0733e-6

8.7855e-7

4.0790e-7

1.9783e-7

9.6446e-6

5.7009e-6

2.4777e-7

3.5503e-8

92.9

224

OSSC

HHN

3.2432e-6

9.1058e-7

9.4377e-7

5.1675e-7

2.7321e-7

7.3540e-6

6.1597e-6

4.0289e-7

3.5724e-8

92.9

224

OSSC

HHE

3.5572e-6

1.2915e-6

1.1246e-6

7.3029e-7

3.1790e-7

9.0152e-6

7.1412e-6

3.3872e-7

4.2756e-8

92.9

224

POPM

HHZ

2.6640e-6

8.7484e-7

5.6759e-7

3.6834e-7

1.8894e-7

6.7143e-6

3.4582e-6

2.5040e-7

2.5357e-8

103.2

266

POPM

HHN

2.7674e-6

8.7481e-7

1.0478e-6

4.7939e-7

2.7822e-7

5.8496e-6

7.4283e-6

4.3677e-7

3.2223e-8

103.2

266

POPM

HHE

2.7475e-6

9.1031e-7

8.6060e-7

3.5973e-7

1.6847e-7

5.4750e-6

5.6888e-6

2.1063e-7

2.6644e-8

103.2

266

BDI

HHZ

1.7078e-6

4.4013e-7

4.5075e-7

2.0381e-7

9.2827e-8

4.3442e-6

3.0539e-6

1.3961e-7

1.5010e-8

115.7

267

BDI

HHN

3.5118e-6

8.6487e-7

6.4933e-7

3.5421e-7

1.3389e-7

8.9447e-6

2.9996e-6

1.5087e-7

2.4707e-8

115.7

267

BDI

HHE

2.4680e-6

6.9643e-7

7.5437e-7

3.7790e-7

1.6988e-7

4.3646e-6

5.5738e-6

1.9224e-7

2.1789e-8

115.7

267

MAIM

HHZ

8.0960e-7

2.2672e-7

2.1257e-7

8.7521e-8

4.1412e-8

1.7593e-6

1.6604e-6

4.8115e-8

5.7470e-9

126.2

260

MAIM

HHN

1.2264e-6

3.4113e-7

3.0702e-7

2.0502e-7

7.3317e-8

2.2130e-6

1.3233e-6

8.9123e-8

1.2656e-8

126.2

260

MAIM

HHE

8.1739e-7

2.2065e-7

1.6653e-7

1.1577e-7

5.7423e-8

2.1807e-6

8.8838e-7

5.5236e-8

8.4028e-9

126.2

260

PII

HHZ

2.0769e-6

3.7838e-7

3.0794e-7

9.2023e-8

4.3742e-8

3.0747e-6

1.8484e-6

6.5202e-8

1.0411e-8

129.4

250

PII

HHN

1.1496e-6

4.3664e-7

2.2736e-7

1.1972e-7

6.4814e-8

1.7527e-6

1.3432e-6

7.5000e-8

7.6046e-9

129.4

250

PII

HHE

1.1575e-6

3.3799e-7

2.8918e-7

1.6032e-7

5.3966e-8

1.6702e-6

1.6740e-6

7.1046e-8

8.4597e-9

129.4

250

*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 forlivese , magnitude (ML): 1.9 2024-12-19 13:58:23 (UTC)

MANUAL Location - Area: Appennino forlivese , magnitude (M_L): 1.9
2024-12-19 13:58:23 (UTC)