Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 18-06-2021 and time 01:23:30 (Italy) in region 11 km S Gubbio (PG)

A magnitude ML 0.8 earthquake occured in region: 11 km S Gubbio (PG), on

  • 17-06-2021 23:23:30 (UTC)
  • 18-06-2021 01:23:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.2560, 12.5510 at 10 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 11 32216 32216
Valfabbrica PG 11 3389 35605
Costacciaro PG 18 1216 36821
Sigillo PG 18 2404 39225
Fossato di Vico PG 18 2840 42065
Umbertide PG 19 16681 58746
Scheggia e Pascelupo PG 19 1393 60139
Gualdo Tadino PG 19 15208 75347

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km NE of Perugia (166134 inhabitants)
36 Km NW of Foligno (57155 inhabitants)
59 Km E of Arezzo (99543 inhabitants)
76 Km SW of Fano (60888 inhabitants)
78 Km N of Terni (111501 inhabitants)
79 Km SW of Pesaro (94582 inhabitants)
88 Km W of Ancona (100861 inhabitants)
90 Km S of Rimini (147750 inhabitants)
99 Km E of Siena (53903 inhabitants)
100 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
Bulletin
Rev1000 		ML 0.8 2021-06-17
23:23:30		 43.2558 12.5513 10 2021-12-29
11:12:07		 Bollettino Sismico Italiano INGV 91991001
Reviewed
Rev100 		ML 0.7 2021-06-17
23:23:30		 43.2483 12.5492 11 2021-06-17
23:54:21		 Sala Sismica INGV-Roma 91473261
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-17 23:23:30 ± 0.08
Latitude 43.2558 ± 0.0036
Longitude 12.5513 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 91991001

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 463
Semi-minor axis of confidence ellipse (meter) 127
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 212
Circular confidence region, given by single value of horizontal uncertainty (meter) 460.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 152
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.35523
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 91991001
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-06-28 06:42:46

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 91473261
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-17 23:54:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FRON.EHZ. 2021-06-17T23:23:41.62 0.3 undecidable manual S 26 32.2455 50 -0.22 69
IV.ASSB.HHZ. 2021-06-17T23:23:39.30 0.1 undecidable manual S -0.15 94
IV.ATPI.EHZ. 2021-06-17T23:23:39.76 0.3 undecidable manual S 331 24.753 112 0.01 73
IV.NARO.HHZ. 2021-06-17T23:23:38.72 0.1 undecidable manual P 3 39.4272 50 0.56 83
IV.FOSV.EHZ. 2021-06-17T23:23:37.35 0.1 undecidable manual S 76 17.4714 120 -0.13 96
IV.TB02.DHZ.01 2021-06-17T23:23:37.35 0.3 undecidable manual S 318 17.0718 120 -0.02 73
IV.TB01.DHZ.01 2021-06-17T23:23:37.33 0.1 undecidable manual S 326 16.7721 121 0.06 97
IV.ATLO.EHZ. 2021-06-17T23:23:36.16 0.1 undecidable manual S 299 13.3755 127 -0.12 96
IV.FRON.EHZ. 2021-06-17T23:23:36.80 0.1 undecidable manual P 26 32.2455 50 -0.25 91
IV.ATFO.HHZ. 2021-06-17T23:23:36.23 0.6 undecidable manual S 8 12.3765 129 0.22 47
IV.ATBU.EHZ. 2021-06-17T23:23:35.89 0.1 undecidable manual P 359 24.3534 112 0.11 95
IV.ATCC.EHZ. 2021-06-17T23:23:35.59 0.1 undecidable manual S 138 10.5783 133 0.05 98
IV.ATPI.EHZ. 2021-06-17T23:23:35.73 0.1 undecidable manual P 331 24.753 112 -0.12 95
IV.ATSC.EHE. 2021-06-17T23:23:35.22 0.1 undecidable manual P 30 21.5673 115 -0.05 96
IV.ATPC.HHE. 2021-06-17T23:23:35.98 0.1 undecidable manual P 343 26.0517 50 -0.12 94
IV.TB03.DHZ.01 2021-06-17T23:23:35.02 0.1 undecidable manual P 325 19.7691 117 0.09 96
IV.ATVO.HHZ. 2021-06-17T23:23:34.54 0.1 undecidable manual P 320 18.2706 119 -0.13 96
IV.TB01.DHZ.01 2021-06-17T23:23:34.43 0.1 undecidable manual P 326 16.7721 121 0.02 98
IV.FOSV.EHZ. 2021-06-17T23:23:34.49 0.1 undecidable manual P 76 17.4714 120 -0.04 97
IV.TB02.DHZ.01 2021-06-17T23:23:34.47 0.3 undecidable manual P 318 17.0718 120 0 74
IV.ATFO.HHZ. 2021-06-17T23:23:33.88 0.1 undecidable manual P 8 12.3765 129 0.2 95
IV.ATCC.EHZ. 2021-06-17T23:23:33.52 0.1 negative manual P 138 10.5783 133 0.1 97
IV.ATLO.EHZ. 2021-06-17T23:23:33.81 0.1 undecidable manual P 299 13.3755 127 -0.03 98
IV.MURB.HHZ. 2021-06-17T23:23:33.90 0.1 undecidable manual S 290 2.2977 167 -0.14 98
IV.MURB.HHZ. 2021-06-17T23:23:32.58 0.1 positive manual P 290 2.2977 167 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MURB.HHN. ML:1.2 0.00030199999999999997 0.18 AML other m 2021-06-17T23:23:34.36
IV.MURB.HHE. ML:1.2 0.00029099999999999997 1.82 AML other m 2021-06-17T23:23:35.91
IV.ATCC.EHN. ML:0.6 0.0000511 1.02 AML other m 2021-06-17T23:23:35.27
IV.ATFO.HHE. ML:0.8 0.00006715 0.3 AML other m 2021-06-17T23:23:36.60
IV.ATFO.HHN. ML:0.8 0.00006670000000000001 0.2 AML other m 2021-06-17T23:23:36.72
IV.ATCC.EHE. ML:0.6 0.0000429 0.3 AML other m 2021-06-17T23:23:38.46
IV.ASSB.HHN. ML:0.9 0.0000435 0.1 AML other m 2021-06-17T23:23:39.76
IV.ASSB.HHE. ML:0.7 0.0000292 1.24 AML other m 2021-06-17T23:23:40.80
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