Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.4 on date 17-02-2023 and time 19:10:26 (Italy) in region 1 km NE Gubbio (PG)

A magnitude ML 0.4 earthquake occured in region: 1 km NE Gubbio (PG), on

  • 17-02-2023 18:10:26 (UTC)
  • 17-02-2023 19:10:26 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.3620, 12.5850 at 7 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Gubbio PG 1 32216 32216
Scheggia e Pascelupo PG 8 1393 33609
Costacciaro PG 10 1216 34825
Cantiano PU 13 2245 37070
Sigillo PG 13 2404 39474
Pietralunga PG 15 2111 41585
Fossato di Vico PG 16 2840 44425

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km NE of Perugia (166134 inhabitants)
46 Km N of Foligno (57155 inhabitants)
58 Km E of Arezzo (99543 inhabitants)
64 Km SW of Fano (60888 inhabitants)
67 Km SW of Pesaro (94582 inhabitants)
78 Km S of Rimini (147750 inhabitants)
81 Km W of Ancona (100861 inhabitants)
89 Km N of Terni (111501 inhabitants)
91 Km SE of Cesena (96758 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
Bulletin
Rev1000 		ML 0.4 2023-02-17
18:10:26		 43.3617 12.5848 7 2024-03-01
17:18:11		 Bollettino Sismico Italiano INGV 118342401
Reviewed
Rev100 		ML 0.2 2023-02-17
18:10:26		 43.3592 12.5803 8 2023-02-17
18:20:34		 Sala Sismica INGV-Roma 114522711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-17 18:10:26 ± 0.1
Latitude 43.3617 ± 0.0027
Longitude 12.5848 ± 0.0037
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 118342401

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 317
Semi-minor axis of confidence ellipse (meter) 86
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 57
Circular confidence region, given by single value of horizontal uncertainty (meter) 320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 112
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.01079
Epicentral distance of station farthest from the epicenter (degree) 0.24911
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:0.2

Field Value
Value 0.2
Uncertainty 0.1
Num. used stations 11
Type of magnitude ML
Reference to an origin 114522711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-17 18:20:34

ML:0.4

Field Value
Value 0.4
Uncertainty 0.2
Num. used stations 5
Type of magnitude ML
Reference to an origin 118342401
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-06-12 15:49:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NARO.HHZ. 2023-02-17T18:10:36.03 0.3 undecidable manual S 359 27.6501 104 -0.26 68
IV.SSFR.HHZ. 2023-02-17T18:10:33.30 0.3 undecidable manual S 62 17.9709 110 0.23 70
IV.ATPI.EHZ. 2023-02-17T18:10:33.33 0.1 undecidable manual S 304 17.7711 111 0.33 91
IV.PIEI.HHZ. 2023-02-17T18:10:33.78 0.3 undecidable manual S 348 19.7691 109 0.13 71
IV.ATCC.EHZ. 2023-02-17T18:10:33.89 0.3 undecidable manual S 167 20.0688 108 0.13 71
IV.NARO.HHZ. 2023-02-17T18:10:32.17 0.3 undecidable manual P 359 27.6501 104 0.05 71
IV.ATVO.HHZ. 2023-02-17T18:10:31.89 0.1 undecidable manual S 279 14.5743 115 -0.09 96
IV.PIEI.HHZ. 2023-02-17T18:10:30.50 0.1 undecidable manual P 348 19.7691 109 -0.09 95
IV.ATCC.EHZ. 2023-02-17T18:10:30.59 0.3 undecidable manual P 167 20.0688 108 -0.07 72
IV.SSFR.HHZ. 2023-02-17T18:10:30.13 0.3 undecidable manual P 62 17.9709 110 -0.13 71
IV.ATPI.EHZ. 2023-02-17T18:10:30.18 0.3 undecidable manual P 304 17.7711 111 -0.04 72
IV.ATVO.HHZ. 2023-02-17T18:10:29.56 0.1 undecidable manual P 279 14.5743 115 -0.07 96
IV.ATFO.HHZ. 2023-02-17T18:10:28.70 0.1 undecidable manual S 297 1.1988 170 -0.08 98
IV.ATFO.HHZ. 2023-02-17T18:10:27.78 0.1 undecidable manual P 297 1.1988 170 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATVO.HHN. ML:0.4 0.0000288 1.76 AML other m 2023-02-17T18:10:31.07
IV.ATVO.HHE. ML:0.4 0.0000281 0.26 AML other m 2023-02-17T18:10:32.02
IV.FRON.EHN. ML:0.4 0.00001805 0.42 AML other m 2023-02-17T18:10:33.02
IV.PIEI.HHN. ML:0.1 0.00001046 0.5 AML other m 2023-02-17T18:10:33.43
IV.FRON.EHE. ML:0.4 0.0000185 1.68 AML other m 2023-02-17T18:10:34.92
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