Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 16-02-2021 and time 05:48:37 (Italy) in region 5 km SE Gubbio (PG)

A magnitude ML 1.1 earthquake occured in region: 5 km SE Gubbio (PG), on

  • 16-02-2021 04:48:37 (UTC)
  • 16-02-2021 05:48:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.3260, 12.6240 at 10 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 8 1216 33432
Scheggia e Pascelupo PG 9 1393 34825
Sigillo PG 10 2404 37229
Fossato di Vico PG 12 2840 40069
Cantiano PU 17 2245 42314
Gualdo Tadino PG 17 15208 57522
Valfabbrica PG 19 3389 60911
Pietralunga PG 20 2111 63022

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km NE of Perugia (166134 inhabitants)
42 Km N of Foligno (57155 inhabitants)
62 Km E of Arezzo (99543 inhabitants)
66 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 1.1 2021-02-16
04:48:37		 43.3263 12.6242 10 2021-02-16
04:57:03		 Sala Sismica INGV-Roma 87196641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-16 04:48:37 ± 0.05
Latitude 43.3263 ± 0.0027
Longitude 12.6242 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 87196641

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 279
Semi-minor axis of confidence ellipse (meter) 211
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 56
Circular confidence region, given by single value of horizontal uncertainty (meter) 280.0
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 28
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.05576
Epicentral distance of station farthest from the epicenter (degree) 0.28598
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 87196641
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-16 04:57:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2021-02-16T04:48:49.02 0.6 undecidable manual S 175 31.6461 50 0.12 47
IV.NARO.HHZ. 2021-02-16T04:48:49.00 0.6 undecidable manual S 354 31.746 50 0.06 48
IV.SNTG.HHZ. 2021-02-16T04:48:47.70 0.6 undecidable manual S 107 26.751 110 0.1 48
IV.ATPI.EHZ. 2021-02-16T04:48:46.32 0.6 undecidable manual S 308 22.5552 113 0.05 49
IV.ATPC.HHE. 2021-02-16T04:48:46.54 0.6 undecidable manual S 322 21.7671 114 0.53 44
IV.FRON.EHZ. 2021-02-16T04:48:46.32 0.6 undecidable manual S 21 22.755 113 0 49
IV.PIEI.HHZ. 2021-02-16T04:48:46.88 0.6 undecidable manual S 343 24.2535 112 0.07 48
IV.SSFR.HHN. 2021-02-16T04:48:45.01 0.6 undecidable manual S 46 17.6712 119 0.29 47
IV.TB01.DHE. 2021-02-16T04:48:44.42 0.6 undecidable manual S 292 16.3725 121 0.07 49
IV.NARO.HHZ. 2021-02-16T04:48:44.12 0.3 negative manual P 354 31.746 50 -0.08 72
IV.ATCC.EHZ. 2021-02-16T04:48:44.64 0.6 undecidable manual S 175 15.6732 122 0.49 45
IV.SNTG.HHZ. 2021-02-16T04:48:43.40 1.0 positive manual P 107 26.751 110 -0.03 24
IV.ASSB.HHZ. 2021-02-16T04:48:43.89 0.1 negative manual P 175 31.6461 50 -0.29 92
IV.ATSC.EHN. 2021-02-16T04:48:43.06 0.3 undecidable manual S 25 11.9769 129 -0.02 75
IV.PIEI.HHZ. 2021-02-16T04:48:42.87 0.6 positive manual P 343 24.2535 112 -0.1 48
IV.MURB.HHZ. 2021-02-16T04:48:42.84 0.6 undecidable manual S 229 10.6782 132 0.09 49
IV.ATPI.EHZ. 2021-02-16T04:48:42.55 0.6 positive manual P 308 22.5552 113 -0.1 48
IV.ATPC.HHE. 2021-02-16T04:48:42.45 0.1 undecidable manual P 322 21.7671 114 -0.06 97
IV.FOSV.EHZ. 2021-02-16T04:48:42.84 0.6 undecidable manual S 108 11.5773 130 -0.15 49
IV.FRON.EHZ. 2021-02-16T04:48:42.69 1.0 undecidable manual P 21 22.755 113 0 25
IV.ATFO.HHZ. 2021-02-16T04:48:41.03 0.6 undecidable manual S 316 6.1938 148 -0.7 42
IV.ATCC.EHZ. 2021-02-16T04:48:41.46 0.1 positive manual P 175 15.6732 122 0.03 99
IV.SSFR.HHN. 2021-02-16T04:48:41.84 0.1 undecidable manual P 46 17.6712 119 0.08 98
IV.TB01.DHE. 2021-02-16T04:48:41.76 0.1 undecidable manual P 292 16.3725 121 0.21 95
IV.FOSV.EHZ. 2021-02-16T04:48:40.69 0.6 negative manual P 108 11.5773 130 -0.07 49
IV.ATSC.EHN. 2021-02-16T04:48:40.83 0.1 undecidable manual P 25 11.9769 129 0.02 100
IV.MURB.HHZ. 2021-02-16T04:48:40.58 0.3 positive manual P 229 10.6782 132 -0.04 75
IV.ATFO.HHZ. 2021-02-16T04:48:39.77 0.1 undecidable manual P 316 6.1938 148 -0.27 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATFO.HHN. ML:1.1 0.000188 0.54 AML other m 2021-02-16T04:48:41.06
IV.ATFO.HHE. ML:1.2 0.000251 0.88 AML other m 2021-02-16T04:48:41.09
IV.MURB.HNN. ML:1.4 0.000299 0.24 AML other m 2021-02-16T04:48:43.19
IV.MURB.HHN. ML:1.4 0.0002875 0.24 AML other m 2021-02-16T04:48:43.20
IV.MURB.HHE. ML:1.4 0.000282 0.38 AML other m 2021-02-16T04:48:43.27
IV.MURB.HNE. ML:1.4 0.000292 0.4 AML other m 2021-02-16T04:48:43.07
IV.FOSV.EHN. ML:1.0 0.00010769999999999999 1 AML other m 2021-02-16T04:48:44.38
IV.ATCC.EHE. ML:1.1 0.000114 0.48 AML other m 2021-02-16T04:48:44.91
IV.ATCC.EHN. ML:0.9 0.0000786 1.24 AML other m 2021-02-16T04:48:45.74
IV.FOSV.EHE. ML:0.9 0.00009895 0.78 AML other m 2021-02-16T04:48:45.27
IV.FRON.EHN. ML:1.1 0.00008035 0.88 AML other m 2021-02-16T04:48:46.50
IV.FRON.EHE. ML:1.1 0.00009065000000000001 0.38 AML other m 2021-02-16T04:48:46.52
IV.ATPI.EHN. ML:0.8 0.00004145 1.36 AML other m 2021-02-16T04:48:47.95
IV.ATPI.EHE. ML:0.7 0.0000347 0.48 AML other m 2021-02-16T04:48:47.06
IV.PIEI.HHN. ML:0.9 0.0000443 0.4 AML other m 2021-02-16T04:48:47.52
IV.PIEI.HHE. ML:1.1 0.00007675000000000001 0.32 AML other m 2021-02-16T04:48:47.73
IV.ASSB.HHE. ML:1.2 0.00006545 0.32 AML other m 2021-02-16T04:48:49.21
IV.ASSB.HHN. ML:1.3 0.0000877 0.34 AML other m 2021-02-16T04:48:49.38
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