Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.3 on date 17-02-2021 and time 21:47:02 (Italy) in region 5 km NW Gubbio (PG)

A magnitude ML 0.3 earthquake occured in region: 5 km NW Gubbio (PG), on

  • 17-02-2021 20:47:02 (UTC)
  • 17-02-2021 21:47:02 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.3860, 12.5320 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 5 32216 32216
Pietralunga PG 10 2111 34327
Scheggia e Pascelupo PG 11 1393 35720
Cantiano PU 13 2245 37965
Costacciaro PG 15 1216 39181
Montone PG 17 1680 40861
Sigillo PG 18 2404 43265
Umbertide PG 19 16681 59946

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km NE of Perugia (166134 inhabitants)
50 Km N of Foligno (57155 inhabitants)
53 Km E of Arezzo (99543 inhabitants)
64 Km SW of Fano (60888 inhabitants)
66 Km SW of Pesaro (94582 inhabitants)
75 Km S of Rimini (147750 inhabitants)
84 Km W of Ancona (100861 inhabitants)
87 Km S of Cesena (96758 inhabitants)
92 Km N of Terni (111501 inhabitants)
97 Km E of Siena (53903 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 0.3 2021-02-17
20:47:02		 43.3858 12.5315 7 2021-07-12
16:55:01		 Bollettino Sismico Italiano INGV 87788041
Reviewed
Rev100 		ML 0.2 2021-02-17
20:47:02		 43.3828 12.5253 7 2021-02-17
21:04:17		 Sala Sismica INGV-Roma 87254261
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-17 20:47:02 ± 0.09
Latitude 43.3858 ± 0.0018
Longitude 12.5315 ± 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 87788041

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 300
Semi-minor axis of confidence ellipse (meter) 35
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 63
Circular confidence region, given by single value of horizontal uncertainty (meter) 300.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 50
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.03507
Epicentral distance of station farthest from the epicenter (degree) 0.31836
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:0.3

Field Value
Value 0.3
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 87788041
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-03-05 16:40:57

ML:0.2

Field Value
Value 0.2
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 87254261
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-17 21:04:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BADI.EHZ. 2021-02-17T20:47:12.16 0.3 undecidable manual S 301 26.8509 104 0.11 72
IV.ATCC.HNE. 2021-02-17T20:47:11.36 0.3 undecidable manual S 158 23.9538 106 0.31 69
IV.ARVD.HHZ. 2021-02-17T20:47:09.82 0.6 undecidable manual P 69 35.3424 101 0.19 46
IV.PIEI.HHZ. 2021-02-17T20:47:08.55 0.3 undecidable manual S 1 16.6722 112 -0.1 73
IV.NARO.HHZ. 2021-02-17T20:47:07.78 1.0 undecidable manual P 9 25.2525 105 0.11 24
IV.MURB.HHZ. 2021-02-17T20:47:07.68 0.3 undecidable manual S 182 13.6752 116 -0.02 75
IV.BADI.EHZ. 2021-02-17T20:47:07.96 0.6 undecidable manual P 301 26.8509 104 -0.02 49
IV.ATCC.HNE. 2021-02-17T20:47:07.52 0.1 undecidable manual P 158 23.9538 106 0.12 96
IV.ATPC.HHE. 2021-02-17T20:47:07.43 0.6 undecidable manual S 330 12.0768 119 0.2 48
IV.ATPI.EHZ. 2021-02-17T20:47:07.59 0.3 undecidable manual S 305 12.6762 118 0.2 72
IV.ATLO.HNN. 2021-02-17T20:47:07.09 0.6 undecidable manual S 232 12.6762 118 -0.32 47
IV.FRON.EHZ. 2021-02-17T20:47:06.84 0.6 undecidable manual P 47 21.4674 107 -0.08 49
IV.SSFR.HHZ. 2021-02-17T20:47:06.59 0.6 undecidable manual P 74 20.9679 108 -0.25 47
IV.ATPI.EHZ. 2021-02-17T20:47:05.38 0.3 undecidable manual P 305 12.6762 118 0.09 74
IV.ATLO.HNN. 2021-02-17T20:47:05.04 0.3 undecidable manual P 232 12.6762 118 -0.27 71
IV.ATFO.HHZ. 2021-02-17T20:47:05.08 0.3 undecidable manual S 123 3.8961 150 -0.03 76
IV.PIEI.HHZ. 2021-02-17T20:47:05.97 0.6 undecidable manual P 1 16.6722 112 -0.05 49
IV.ATSC.EHN. 2021-02-17T20:47:05.04 0.6 undecidable manual P 71 13.1757 117 -0.35 47
IV.MURB.HHZ. 2021-02-17T20:47:05.36 0.6 undecidable manual P 182 13.6752 116 -0.11 49
IV.ATPC.HHE. 2021-02-17T20:47:05.10 1.0 undecidable manual P 330 12.0768 119 -0.1 25
IV.TB01.DHE.01 2021-02-17T20:47:04.39 0.1 undecidable manual P 267 7.7811 131 -0.09 100
IV.ATFO.HHZ. 2021-02-17T20:47:04.08 0.1 negative manual P 123 3.8961 150 0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATFO.HHE. ML:0.8 0.000118 0.2 AML other m 2021-02-17T20:47:05.46
IV.ATFO.HHN. ML:1.0 0.0001785 0.46 AML other m 2021-02-17T20:47:05.26
IV.MURB.HHE. ML:0.5 0.000035629134999999996 0.2432 AML other m 2021-02-17T20:47:08.40
IV.ATPI.EHN. ML:0.2 0.000020200345 0.8992 AML other m 2021-02-17T20:47:08.88
IV.MURB.HHN. ML:0.3 0.000024576561 0.2176 AML other m 2021-02-17T20:47:08.56
IV.NARO.HHE. ML:0.4 0.000012567587 0.0768 AML other m 2021-02-17T20:47:09.09
IV.ATPI.EHE. ML:0.1 0.000012757456 0.3616 AML other m 2021-02-17T20:47:09.11
IV.NARO.HHN. ML:0.5 0.000019116745000000003 0.0896 AML other m 2021-02-17T20:47:09.34
IV.PIEI.HHN. ML:0.2 0.000016281400000000003 0.2432 AML other m 2021-02-17T20:47:10.35
IV.PIEI.HHE. ML:0.3 0.000018497235000000002 0.2176 AML other m 2021-02-17T20:47:10.40
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