Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.3 on date 20-04-2022 and time 21:20:42 (UTC) in region 5 km W Gubbio (PG)

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

  • 20-04-2022 21:20:42 (UTC)
  • 20-04-2022 23:20:42 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.3710, 12.5290 at 5 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
Pietralunga PG 11 2111 34327
Scheggia e Pascelupo PG 12 1393 35720
Cantiano PU 14 2245 37965
Costacciaro PG 15 1216 39181
Montone PG 16 1680 40861
Umbertide PG 18 16681 57542
Sigillo PG 18 2404 59946

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km NE of Perugia (166134 inhabitants)
48 Km NW of Foligno (57155 inhabitants)
53 Km E of Arezzo (99543 inhabitants)
66 Km SW of Fano (60888 inhabitants)
68 Km SW of Pesaro (94582 inhabitants)
77 Km S of Rimini (147750 inhabitants)
85 Km W of Ancona (100861 inhabitants)
88 Km S of Cesena (96758 inhabitants)
91 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
Reviewed
Rev100 		ML 0.3 2022-04-20
21:20:42		 43.3712 12.5287 5 2022-04-20
21:25:13		 Sala Sismica INGV-Roma 103544381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-04-20 21:20:42 ± 0.06
Latitude 43.3712 ± 0.0018
Longitude 12.5287 ± 0.0025
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 103544381

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 220
Semi-minor axis of confidence ellipse (meter) 16
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 349
Circular confidence region, given by single value of horizontal uncertainty (meter) 220.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.03148
Epicentral distance of station farthest from the epicenter (degree) 0.19515
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:0.3

Field Value
Value 0.3
Uncertainty 0.2
Num. used stations 2
Type of magnitude ML
Reference to an origin 103544381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-04-20 21:25:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIEI.HHZ. 2022-04-20T21:20:49.07 0.6 undecidable manual S 2 18.2706 106 0.1 48
IV.TSM3.DHE. 2022-04-20T21:20:47.63 0.6 undecidable manual S 275 13.9749 111 0.07 49
IV.ATSC.EHE. 2022-04-20T21:20:47.64 0.6 undecidable manual S 65 13.9749 111 0.07 49
IV.MURB.HHZ. 2022-04-20T21:20:47.03 0.6 undecidable manual S 182 11.9769 114 0.11 49
IV.SSFR.HHZ. 2022-04-20T21:20:46.45 0.6 undecidable manual P 70 21.6672 104 -0.38 45
IV.ATLO.HNE. 2022-04-20T21:20:46.88 0.6 undecidable manual S 238 11.5773 115 0.09 49
IV.TB02.DHZ.01 2022-04-20T21:20:46.22 0.6 undecidable manual S 270 9.5793 119 0.04 50
IV.ATVO.HHZ. 2022-04-20T21:20:46.24 0.6 undecidable manual S 277 9.879 118 -0.03 50
IV.TB03.DHZ.01 2022-04-20T21:20:46.41 0.6 undecidable manual S 289 10.0788 118 0.07 49
IV.PIEI.HHZ. 2022-04-20T21:20:46.43 0.1 undecidable manual P 2 18.2706 106 0.25 94
IV.MURB.HHZ. 2022-04-20T21:20:45.07 0.3 negative manual P 182 11.9769 114 0.08 74
IV.TB01.DHN.01 2022-04-20T21:20:45.66 0.6 undecidable manual S 279 7.5813 125 0.07 49
IV.TSM3.DHE. 2022-04-20T21:20:45.35 0.1 undecidable manual P 275 13.9749 111 -0.01 99
IV.ATSC.EHE. 2022-04-20T21:20:45.32 0.1 undecidable manual P 65 13.9749 111 -0.05 98
IV.ATFO.HHZ. 2022-04-20T21:20:44.65 0.6 undecidable manual S 98 3.4965 147 0.06 50
IV.TB03.DHZ.01 2022-04-20T21:20:44.57 0.1 undecidable manual P 289 10.0788 118 -0.08 98
IV.TB01.DHN.01 2022-04-20T21:20:44.20 0.1 undecidable manual P 279 7.5813 125 -0.02 100
IV.ATLO.HNE. 2022-04-20T21:20:44.88 0.1 undecidable manual P 238 11.5773 115 -0.04 99
IV.TB02.DHZ.01 2022-04-20T21:20:44.51 0.1 undecidable manual P 270 9.5793 119 -0.06 99
IV.ATVO.HHZ. 2022-04-20T21:20:44.55 0.1 positive manual P 277 9.879 118 -0.07 99
IV.TSM2.DHE. 2022-04-20T21:20:44.55 0.6 undecidable manual S 312 4.1958 142 -0.18 49
IV.TSM2.DHE. 2022-04-20T21:20:43.64 0.1 undecidable manual P 312 4.1958 142 -0.09 99
IV.ATFO.HHZ. 2022-04-20T21:20:43.66 0.3 negative manual P 98 3.4965 147 0.01 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATVO.HHN. ML:0.4 0.00004265 0.12 AML other m 2022-04-20T21:20:46.39
IV.ATVO.HHE. ML:0.2 0.0000238 0.54 AML other m 2022-04-20T21:20:47.46
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