Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 05-01-2023 and time 05:16:36 (UTC) in region 10 km NE Pratovecchio Stia (AR)

A magnitude ML 1.4 earthquake occured in region: 10 km NE Pratovecchio Stia (AR), on

  • 05-01-2023 05:16:36 (UTC)
  • 05-01-2023 06:16:36 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.8670, 11.7850 at 7 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Pratovecchio Stia AR 10 5845 5845
Premilcuore FC 12 799 6644
Santa Sofia FC 13 4136 10780
San Godenzo FI 15 1167 11947
Castel San Niccolò AR 15 2707 14654
Bagno di Romagna FC 16 6026 20680
Poppi AR 16 6160 26840
Londa FI 17 1840 28680
Galeata FC 18 2516 31196
Portico e San Benedetto FC 18 756 31952
Montemignaio AR 19 566 32518
Bibbiena AR 19 12241 44759
Verghereto FC 19 1907 46666
Civitella di Romagna FC 20 3786 50452

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km E of Firenze (382808 inhabitants)
45 Km SW of Forlì (117913 inhabitants)
45 Km N of Arezzo (99543 inhabitants)
47 Km S of Faenza (58541 inhabitants)
47 Km SW of Cesena (96758 inhabitants)
50 Km E of Scandicci (50609 inhabitants)
54 Km S of Imola (69797 inhabitants)
55 Km E of Prato (191150 inhabitants)
66 Km W of Rimini (147750 inhabitants)
70 Km SW of Ravenna (159116 inhabitants)
70 Km E of Pistoia (90315 inhabitants)
71 Km NE of Siena (53903 inhabitants)
78 Km SE of Bologna (386663 inhabitants)
91 Km W of Pesaro (94582 inhabitants)
98 Km NW of Perugia (166134 inhabitants)
99 Km W of Fano (60888 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 1.4 2023-01-05
05:16:36		 43.8672 11.7852 7 2023-01-05
05:34:38		 Sala Sismica INGV-Roma 113319481
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-05 05:16:36 ± 0.11
Latitude 43.8672 ± 0.0054
Longitude 11.7852 ± 0.0112
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 113319481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 863
Semi-minor axis of confidence ellipse (meter) 389
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 72
Circular confidence region, given by single value of horizontal uncertainty (meter) 860.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 97
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.60974
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 17
Type of magnitude ML
Reference to an origin 113319481
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-01-05 05:34:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MF5.EHZ. 2023-01-05T05:17:25.04 3.0 undecidable manual P 0
IV.NRCA.HHZ. 2023-01-05T05:17:23.09 3.0 undecidable manual S 0
IV.MC2.EHZ. 2023-01-05T05:17:22.22 3.0 undecidable manual P 0
IV.MMO1.EHZ. 2023-01-05T05:17:22.22 3.0 undecidable manual P 0
IV.NRCA.HHZ. 2023-01-05T05:17:20.94 3.0 undecidable manual P 0
IV.SEI.HHZ. 2023-01-05T05:16:50.43 0.3 undecidable manual S 301 39.9267 100 0.14 92
IV.BRIS.HHZ. 2023-01-05T05:16:50.58 0.3 undecidable manual S 358 39.627 100 0.37 87
IV.CRMI.HHZ. 2023-01-05T05:16:48.86 0.3 undecidable manual P 263 64.9905 50 0.63 77
IV.ATPI.EHZ. 2023-01-05T05:16:48.45 0.3 undecidable manual P 133 67.6767 50 -0.21 87
Y1.T1756.HNZ. 2023-01-05T05:16:48.59 0.3 undecidable manual S 50 33.1446 102 0.62 82
IV.CRE.HHZ. 2023-01-05T05:16:47.54 0.3 undecidable manual S 154 30.6471 102 0.42 89
IV.CAFI.HHZ. 2023-01-05T05:16:47.68 0.3 undecidable manual P 166 61.3941 50 -0.01 91
IV.SEI.HHZ. 2023-01-05T05:16:44.09 0.3 undecidable manual P 301 39.9267 100 -0.26 90
IV.LMD.HHZ. 2023-01-05T05:16:44.94 0.3 undecidable manual S 345 24.1536 106 0 97
IV.VISG.HHZ. 2023-01-05T05:16:44.93 0.3 undecidable manual P 322 45.3213 50 -0.28 89
IV.BRIS.HHZ. 2023-01-05T05:16:44.16 0.3 undecidable manual P 358 39.627 100 -0.15 92
IV.PARC.HHZ. 2023-01-05T05:16:44.35 0.3 undecidable manual P 124 43.7229 50 -0.6 83
Y1.T1756.HNZ. 2023-01-05T05:16:42.98 0.3 undecidable manual P 50 33.1446 102 -0.04 95
IV.CRE.HHZ. 2023-01-05T05:16:42.53 0.3 undecidable manual P 154 30.6471 102 0 96
IV.LMD.HHZ. 2023-01-05T05:16:41.18 0.3 undecidable manual P 345 24.1536 106 -0.09 95
IV.SFI.HNZ. 2023-01-05T05:16:39.10 0.3 undecidable manual S 50 6.4935 136 -0.39 91
IV.SFI.HNZ. 2023-01-05T05:16:38.17 0.3 undecidable manual P 50 6.4935 136 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CRE.HHE. ML:1.8 0.00032199999999999997 0.16 AML other m 2023-01-05T05:16:47.77
IV.CRE.HHN. ML:2.0 0.000527 0.18 AML other m 2023-01-05T05:16:47.77
IV.BRIS.HHN. ML:1.4 0.00010025000000000001 0.38 AML other m 2023-01-05T05:16:51.09
IV.BRIS.HNN. ML:1.9 0.0002795 1.24 AML other m 2023-01-05T05:16:51.10
IV.BRIS.HHE. ML:1.6 0.00014700000000000002 0.34 AML other m 2023-01-05T05:16:51.17
IV.BRIS.HNE. ML:2.0 0.0003465 0.34 AML other m 2023-01-05T05:16:51.17
IV.PARC.HHE. ML:1.2 0.000048049999999999996 0.2 AML other m 2023-01-05T05:16:51.23
IV.PARC.HHN. ML:1.3 0.000059050000000000006 0.72 AML other m 2023-01-05T05:16:51.11
IV.VISG.HHE. ML:0.9 0.0000275 0.28 AML other m 2023-01-05T05:16:52.81
IV.VISG.HHN. ML:1.1 0.00003325 0.96 AML other m 2023-01-05T05:16:54.04
IV.OSSC.HHN. ML:1.3 0.00004655 1.08 AML other m 2023-01-05T05:16:57.60
IV.ATPI.EHE. ML:1.3 0.000032600000000000006 1.24 AML other m 2023-01-05T05:16:58.95
IV.ATPI.EHN. ML:1.4 0.00003945 0.2 AML other m 2023-01-05T05:16:59.02
IV.PIEI.HHE. ML:1.1 0.000021000000000000002 0.28 AML other m 2023-01-05T05:16:59.75
IV.OSSC.HHE. ML:1.4 0.00005300000000000001 0.24 AML other m 2023-01-05T05:17:00.15
IV.CAFI.HHE. ML:1.1 0.000024182934999999998 0.4608 AML other m 2023-01-05T05:16:59.96
IV.CAFI.HHN. ML:1.1 0.00002533522 0.3008 AML other m 2023-01-05T05:17:01.56
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download