Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.5 on date 06-02-2023 and time 20:53:34 (UTC) in region 6 km NW Preci (PG)

A magnitude ML 0.5 earthquake occured in region: 6 km NW Preci (PG), on

  • 06-02-2023 20:53:34 (UTC)
  • 06-02-2023 21:53:34 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9250, 13.0070 at 11 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
Preci PG 6 724 724
Visso MC 7 1107 1831
Sellano PG 8 1079 2910
Monte Cavallo MC 8 145 3055
Ussita MC 11 444 3499
Castelsantangelo sul Nera MC 12 281 3780
Cerreto di Spoleto PG 14 1075 4855
Pieve Torina MC 14 1458 6313
Fiordimonte MC 14 202 6515
Norcia PG 16 4957 11472
Pievebovigliana MC 17 866 12338
Serravalle di Chienti MC 17 1070 13408
Fiastra MC 17 559 13967
Muccia MC 18 915 14882
Acquacanina MC 18 121 15003
Bolognola MC 20 142 15145

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km E of Foligno (57155 inhabitants)
50 Km NE of Terni (111501 inhabitants)
54 Km E of Perugia (166134 inhabitants)
64 Km W of Teramo (54892 inhabitants)
71 Km NW of L'Aquila (69753 inhabitants)
88 Km SW of Ancona (100861 inhabitants)
93 Km NE of Viterbo (67173 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 0.5 2023-02-06
20:53:34		 42.9248 13.007 11 2023-02-06
21:01:21		 Sala Sismica INGV-Roma 114183471
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-06 20:53:34 ± 0.08
Latitude 42.9248 ± 0.0045
Longitude 13.0070 ± 0.0074
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 114183471

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 690
Semi-minor axis of confidence ellipse (meter) 402
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 55
Circular confidence region, given by single value of horizontal uncertainty (meter) 690.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 110
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.34174
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 12
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 114183471
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-06 21:01:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MML1.HNZ. 2023-02-06T20:53:42.57 0.3 undecidable manual S 352 0.1907 50 -0.19 94
IV.MOMA.HNZ. 2023-02-06T20:53:42.54 0.3 undecidable manual P 249 0.3417 50 0.61 82
IV.FDMO.HHZ. 2023-02-06T20:53:41.01 0.3 undecidable manual S 28 0.1259 128 0.19 95
IV.LNSS.HHZ. 2023-02-06T20:53:40.50 3.0 positive manual P -0.14 0
IV.MMO1.EHZ. 2023-02-06T20:53:40.14 0.3 undecidable manual P 96 0.2356 50 0.04 96
IV.CESI.HHZ. 2023-02-06T20:53:40.03 0.3 undecidable manual S 317 0.1097 132 -0.29 94
IV.NRCA.HHZ. 2023-02-06T20:53:40.42 0.3 undecidable manual S 139 0.1205 129 -0.22 95
IT.MTCL.HGZ. 2023-02-06T20:53:39.18 0.3 undecidable manual S 355 0.0692 145 -0.11 98
7F.SIB1.EHZ. 2023-02-06T20:53:39.43 0.3 undecidable manual P 99 0.1952 50 0.02 97
IV.MML1.HNZ. 2023-02-06T20:53:39.24 0.3 undecidable manual P 352 0.1907 50 -0.09 96
7F.SIB3.EHZ. 2023-02-06T20:53:39.31 0.3 undecidable manual P 104 0.1988 50 -0.16 95
IV.CSP1.EHZ. 2023-02-06T20:53:39.91 0.3 undecidable manual P 41 0.2212 50 0.06 96
IV.FEMA.HNZ. 2023-02-06T20:53:39.22 0.3 undecidable manual S 40 0.0486 154 0.33 94
7F.SIB2.EHZ. 2023-02-06T20:53:39.75 0.3 undecidable manual P 99 0.2203 50 -0.08 96
IV.FDMO.HHZ. 2023-02-06T20:53:38.23 0.3 undecidable manual P 28 0.1259 128 0.02 99
IV.CESI.HHZ. 2023-02-06T20:53:37.76 0.3 undecidable manual P 317 0.1097 132 -0.17 96
IV.FEMA.HNZ. 2023-02-06T20:53:37.33 0.3 undecidable manual P 40 0.0486 154 0.24 96
IV.NRCA.HHZ. 2023-02-06T20:53:37.93 0.3 undecidable manual P 139 0.1205 129 -0.17 96
IT.MTCL.HGZ. 2023-02-06T20:53:37.31 0.3 undecidable manual P 355 0.0692 145 -0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:0.5 0.000035737405 0.0896 AML other m 2023-02-06T20:53:40.36
IV.CESI.HHN. ML:0.8 0.00007299732 0.2048 AML other m 2023-02-06T20:53:40.24
IV.NRCA.HHE. ML:0.6 0.000038286525 0.1664 AML other m 2023-02-06T20:53:40.83
IV.NRCA.HHN. ML:0.5 0.000031889805 0.0896 AML other m 2023-02-06T20:53:40.49
IV.FDMO.HHE. ML:0.3 0.000018342230500000002 0 AML other m 2023-02-06T20:53:41.20
IV.FDMO.HHN. ML:0.4 0.0000230013125 0.1664 AML other m 2023-02-06T20:53:41.15
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