Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.3 on date 23-10-2020 and time 02:34:18 (UTC) in region 5 km SE Gubbio (PG)

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

  • 23-10-2020 02:34:18 (UTC)
  • 23-10-2020 04:34:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.3290, 12.6310 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
Gubbio PG 5 32216 32216
Costacciaro PG 7 1216 33432
Sigillo PG 9 2404 35836
Scheggia e Pascelupo PG 9 1393 37229
Fossato di Vico PG 11 2840 40069
Cantiano PU 16 2245 42314
Gualdo Tadino PG 17 15208 57522
Valfabbrica PG 19 3389 60911

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km NE of Perugia (166134 inhabitants)
42 Km N of Foligno (57155 inhabitants)
62 Km E of Arezzo (99543 inhabitants)
65 Km SW of Fano (60888 inhabitants)
69 Km SW of Pesaro (94582 inhabitants)
79 Km W of Ancona (100861 inhabitants)
82 Km S of Rimini (147750 inhabitants)
85 Km N of Terni (111501 inhabitants)
95 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
Reviewed
Rev100 		ML 0.3 2020-10-23
02:34:18		 43.329 12.6313 11 2020-10-23
02:45:20		 Sala Sismica INGV-Roma 84045581
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-23 02:34:18 ± 0.04
Latitude 43.3290 ± 0.0027
Longitude 12.6313 ± 0.0037
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 84045581

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 299
Semi-minor axis of confidence ellipse (meter) 260
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 165
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) 67
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
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) 0.05756
Epicentral distance of station farthest from the epicenter (degree) 0.28149
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitude information

ML:0.3

Field Value
Value 0.3
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 84045581
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-23 02:45:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2020-10-23T02:34:29.48 0.6 undecidable manual S 53 31.2465 50 0.06 64
IV.ATBU.HNZ. 2020-10-23T02:34:26.06 0.6 undecidable manual S 338 17.5713 121 0.35 62
IV.FRON.EHZ. 2020-10-23T02:34:26.80 0.6 undecidable manual S 20 22.2555 50 -0.23 63
IV.ATCC.EHZ. 2020-10-23T02:34:25.28 0.6 undecidable manual S 177 15.9729 124 0.04 66
IV.SSFR.HNZ. 2020-10-23T02:34:25.49 0.6 undecidable manual S 46 17.0718 122 -0.05 65
IV.ATVO.HHZ. 2020-10-23T02:34:25.89 0.6 undecidable manual S 288 19.0698 119 -0.26 63
IV.TB01.DHZ.01 2020-10-23T02:34:25.35 0.6 undecidable manual S 290 16.872 123 -0.14 64
IV.SNTG.HHZ. 2020-10-23T02:34:24.01 0.3 undecidable manual P 108 26.2515 50 -0.05 98
IV.ARVD.HHZ. 2020-10-23T02:34:24.82 0.3 undecidable manual P 53 31.2465 50 -0.01 97
IV.MURB.HHZ. 2020-10-23T02:34:24.26 0.6 undecidable manual S 230 11.2776 134 0.29 63
IV.ATBU.HNZ. 2020-10-23T02:34:23.23 0.3 undecidable manual P 338 17.5713 121 0.54 89
IV.FOSV.EHZ. 2020-10-23T02:34:23.80 0.6 undecidable manual S 110 11.1777 134 -0.13 65
IV.ATPC.HHZ. 2020-10-23T02:34:23.50 0.3 undecidable manual P 320 21.9669 50 0.11 96
IV.FRON.EHZ. 2020-10-23T02:34:23.30 0.3 undecidable manual P 20 22.2555 50 -0.15 96
IV.ATPI.HNZ. 2020-10-23T02:34:23.60 0.3 undecidable manual P 306 22.8549 50 0.06 97
IV.ATSC.EHZ. 2020-10-23T02:34:23.99 0.6 undecidable manual S 23 11.4774 133 -0.01 66
IV.ATVO.HHZ. 2020-10-23T02:34:22.80 0.3 undecidable manual P 288 19.0698 119 -0.14 97
IV.TB01.DHZ.01 2020-10-23T02:34:22.52 0.3 undecidable manual P 290 16.872 123 -0.04 99
IV.ATLO.EHZ. 2020-10-23T02:34:22.64 0.3 undecidable manual P 265 18.1707 121 -0.14 97
IV.ATCC.EHZ. 2020-10-23T02:34:22.44 0.3 undecidable manual P 177 15.9729 124 0.03 99
IV.SSFR.HNZ. 2020-10-23T02:34:22.59 0.3 undecidable manual P 46 17.0718 122 0 99
IV.ATFO.HHZ. 2020-10-23T02:34:22.82 0.6 undecidable manual S 311 6.3936 149 -0.08 66
IV.MURB.HHZ. 2020-10-23T02:34:21.72 0.3 undecidable manual P 230 11.2776 134 0.04 100
IV.ATSC.EHZ. 2020-10-23T02:34:21.84 0.3 undecidable manual P 23 11.4774 133 0.14 98
IV.FOSV.EHZ. 2020-10-23T02:34:21.69 0.3 undecidable manual P 110 11.1777 134 0.03 100
IV.ATFO.HHZ. 2020-10-23T02:34:20.91 0.3 undecidable manual P 311 6.3936 149 -0.15 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FOSV.EHE. ML:0.1 0.000012538279999999998 0.1408 AML other m 2020-10-23T02:34:24.47
IV.FOSV.EHN. ML:0.1 0.00001581815 0.1792 AML other m 2020-10-23T02:34:25.00
IV.MURB.HHE. ML:0.6 0.000042380464999999996 0.2384 AML other m 2020-10-23T02:34:25.27
IV.MURB.HHN. ML:0.6 0.000052465715 0.2192 AML other m 2020-10-23T02:34:26.57
IV.ATVO.HHE. ML:0.3 0.000014957665 0.2192 AML other m 2020-10-23T02:34:26.05
IV.ATVO.HHN. ML:0.3 0.0000144105435 0.2208 AML other m 2020-10-23T02:34:26.00
IV.FRON.EHE. ML:0.4 0.0000125544745 0.08 AML other m 2020-10-23T02:34:26.91
IV.FRON.EHN. ML:0.5 0.00001854081 0.08 AML other m 2020-10-23T02:34:27.90
IV.ARVD.HHE. ML:0.0 0.000005312782 0.12 AML other m 2020-10-23T02:34:29.96
IV.ARVD.HHN. ML:0.0 0.0000036121382499999997 0.1008 AML other m 2020-10-23T02:34:30.05
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