RSNI - Manually revised location

MANUAL Location - Area: Appennino forlivese , magnitude (M_L): 1.3
2025-06-05 01:22:54 (UTC)

Regional Seismic Network of Northwestern Italy (Distav, University of Genoa)
Posted on: 2025-06-05 07:10:23

Earthquake info - Manual location

Event - ID :	250605012243
Magnitude (M_L) :	1.3 +/- 0.2
Origin Time :	2025-06-05 01:22:54.104 (UTC)
Location :	Latitude: 44.062 N, Longitude: 11.727 E
Area :	Appennino forlivese
Depth (km) :	21.57
Distances (km) :	2.5 --- Tredozio 5.9 --- Portico e San Benedetto 9.2 --- Rocca San Casciano 9.2 --- Marradi 10.0 --- Premilcuore 12.0 --- Modigliana 14.5 --- Dovadola 15.5 --- Palazzuolo sul Senio 16.4 --- Galeata 17.3 --- San Godenzo 18.1 --- Civitella di Romagna 18.5 --- Brisighella 19.3 --- Santa Sofia 19.9 --- Casola Valsenio 20.9 --- Predappio 21.5 --- Castrocaro Terme e Terra del Sole 23.9 --- Riolo Terme 24.4 --- Castel del Rio 24.9 --- Dicomano 25.3 --- Vicchio

Quality location estimate: Erh: 1.7 km, Erz: 1.2 km, Nf: 22, Gap: 249 °, 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	2025-06-05 01:22:58.580	0.014	0	-0.10	1.46	2025-06-05 01:23:02.270	0.067	1	0.04	1.73	21.7
SEI	IV	2025-06-05 01:23:01.050	0.022	1	0.01	1.76	2025-06-05 01:23:06.360	0.112	3	-0.05	1.52	36.9
RUFI	IV	2025-06-05 01:23:01.540	0.017	0	0.28	0.97	2025-06-05 01:23:07.270	0.118	3	0.67	0.33	37.2
MTRZ	IV	2025-06-05 01:23:02.530	0.021	1	0.23	1.19	2025-06-05 01:23:09.686	0.040	0	0.87	0.29	43.0
ZCCA	IV	2025-06-05 01:23:07.779	0.020	0	-0.55	0.27	2025-06-05 01:23:20.440	0.040	0	0.91	0.29	71.4
OSSC	IV	2025-06-05 01:23:07.855	0.020	0	-0.01	1.64	2025-06-05 01:23:17.845	0.040	0	0.10	1.36	74.6
CSNT	IV	2025-06-05 01:23:08.440	0.095	4	0.04	1.57	2025-06-05 01:23:18.210	0.040	0	-0.41	0.64	77.3
POPM	GU	2025-06-05 01:23:08.568	0.020	0	0.06	1.64	2025-06-05 01:23:19.192	0.040	0	0.05	1.35	80.6
BDI	IV	2025-06-05 01:23:10.690	0.046	2	0.15	1.44	2025-06-05 01:23:22.694	0.040	0	-0.09	1.21	93.0
GSCL	GU	2025-06-05 01:23:12.591	0.020	0	-0.25	0.96	2025-06-05 01:23:27.602	0.040	0	0.91	0.32	98.8
PII	IV	2025-06-05 01:23:11.360	0.052	2	-1.00	0.04	2025-06-05 01:23:22.622	0.040	0	-3.46	0.00	105.7

Local magnitude (M_L) calculation results

Station	Net	Channels	Stat. Mag.	Wood-And. Ampl.	Dist. (km)	Azimuth
MTRZ	IV	HH	1.68	2.99e-1	43.0	319
ZCCA	IV	HH	0.93	1.85e-2	71.4	299
OSSC	IV	HH	1.32	4.06e-2	74.6	213
POPM	GU	HH	1.09	4.11e-2	80.6	269
BDI	IV	HH	1.21	2.45e-2	93.0	270
GSCL	GU	HH	1.37	2.42e-2	98.8	290
PII	IV	HH	1.32	1.85e-2	105.7	249

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.
(°)

SEI

HHZ

1.7880e-5

5.5048e-6

5.4728e-6

2.3182e-6

8.7166e-7

2.8717e-5

3.6552e-5

1.1089e-6

1.4573e-7

36.9

269

SEI

HHN

2.5738e-5

8.7322e-6

8.7142e-6

4.4063e-6

1.6146e-6

4.9336e-5

6.9229e-5

2.0954e-6

2.4425e-7

36.9

269

SEI

HHE

2.4828e-5

7.7924e-6

8.2590e-6

3.7635e-6

1.4750e-6

4.5339e-5

5.7106e-5

2.0387e-6

2.6852e-7

36.9

269

MTRZ

HHZ

3.7714e-6

1.0051e-6

8.0018e-7

8.4015e-7

2.8031e-7

7.8868e-6

3.4260e-6

2.9233e-7

3.0027e-8

43.0

319

MTRZ

HHN

9.1544e-6

2.4289e-6

2.2455e-6

1.5985e-6

6.6817e-7

1.7863e-5

1.6712e-5

7.3787e-7

7.6494e-8

43.0

319

MTRZ

HHE

8.9131e-6

2.2796e-6

2.1128e-6

1.4060e-6

4.8345e-7

1.3786e-5

1.1506e-5

6.1648e-7

6.6800e-8

43.0

319

ZCCA

HHZ

3.8661e-7

8.1647e-8

9.1718e-8

5.8652e-8

2.8025e-8

1.3441e-6

6.3971e-7

3.1923e-8

2.8636e-9

71.4

299

ZCCA

HHN

3.0804e-7

1.1236e-7

1.4122e-7

8.8836e-8

4.2460e-8

5.1214e-7

9.1719e-7

4.7222e-8

4.2525e-9

71.4

299

ZCCA

HHE

3.8707e-7

1.2587e-7

1.3358e-7

1.2038e-7

4.7660e-8

8.0149e-7

7.7234e-7

5.6405e-8

5.0375e-9

71.4

299

OSSC

HHZ

1.1136e-6

2.3268e-7

2.2109e-7

1.3419e-7

5.8270e-8

3.0468e-6

1.0686e-6

5.4514e-8

7.2865e-9

74.6

213

OSSC

HHN

8.1363e-7

2.1480e-7

2.5501e-7

1.4803e-7

6.4750e-8

1.7829e-6

1.6738e-6

6.2938e-8

6.9139e-9

74.6

213

OSSC

HHE

1.0969e-6

4.0511e-7

3.8774e-7

2.5240e-7

9.2583e-8

2.1958e-6

2.3672e-6

1.1300e-7

1.1600e-8

74.6

213

POPM

HHZ

5.5930e-7

1.5321e-7

1.5745e-7

8.9486e-8

3.6008e-8

1.8150e-6

1.1015e-6

4.2327e-8

4.2582e-9

80.6

269

POPM

HHN

1.0548e-6

3.9404e-7

3.2743e-7

1.9108e-7

1.0818e-7

2.5770e-6

1.7932e-6

1.6215e-7

1.4877e-8

80.6

269

POPM

HHE

9.8964e-7

3.7465e-7

2.7331e-7

1.2187e-7

6.6614e-8

2.0375e-6

1.7913e-6

9.4300e-8

9.8020e-9

80.6

269

BDI

HHZ

5.7018e-7

1.5645e-7

1.1021e-7

5.8695e-8

2.6809e-8

1.1075e-6

6.7267e-7

3.5852e-8

4.1425e-9

93.0

270

BDI

HHN

5.9518e-7

1.9057e-7

1.5651e-7

1.0793e-7

4.5356e-8

1.8675e-6

1.1019e-6

4.9085e-8

5.0472e-9

93.0

270

BDI

HHE

5.9928e-7

1.9270e-7

1.5768e-7

9.3722e-8

4.0843e-8

1.7343e-6

1.1347e-6

3.8364e-8

4.4178e-9

93.0

270

GSCL

HHZ

3.1894e-7

7.4295e-8

6.5062e-8

3.6332e-8

2.1165e-8

6.9379e-7

3.9303e-7

2.3848e-8

2.6184e-9

98.8

290

GSCL

HHN

3.8434e-7

1.4439e-7

1.2891e-7

1.1346e-7

1.1622e-7

6.7348e-7

8.8076e-7

2.4839e-7

1.6006e-8

98.8

290

GSCL

HHE

3.8126e-7

1.0710e-7

1.2800e-7

8.0277e-8

4.6918e-8

5.9262e-7

9.1759e-7

5.5509e-8

4.7690e-9

98.8

290

PII

HHZ

5.4834e-7

1.2307e-7

1.0644e-7

3.5293e-8

1.7646e-8

1.4100e-6

5.4002e-7

2.7376e-8

3.5811e-9

105.7

249

PII

HHN

3.6303e-7

1.5145e-7

1.2578e-7

7.6594e-8

2.9285e-8

1.2440e-6

9.4510e-7

3.4424e-8

4.9794e-9

105.7

249

PII

HHE

3.3158e-7

1.1668e-7

1.1522e-7

5.4583e-8

2.2488e-8

8.0678e-7

6.8845e-7

2.8783e-8

3.2669e-9

105.7

249

*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): 1.3 2025-06-05 01:22:54 (UTC)

MANUAL Location - Area: Appennino forlivese , magnitude (M_L): 1.3
2025-06-05 01:22:54 (UTC)