Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.6 on date 05-02-2021 and time 17:33:52 (Italy) in region 5 km N Nocera Umbra (PG)

A magnitude ML 0.6 earthquake occured in region: 5 km N Nocera Umbra (PG), on

  • 05-02-2021 16:33:52 (UTC)
  • 05-02-2021 17:33:52 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.1590, 12.7970 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
Nocera Umbra PG 5 5839 5839
Gualdo Tadino PG 8 15208 21047
Fiuminata MC 12 1402 22449
Valtopina PG 12 1398 23847
Sefro MC 13 422 24269
Fossato di Vico PG 15 2840 27109
Pioraco MC 16 1134 28243
Valfabbrica PG 16 3389 31632
Serravalle di Chienti MC 16 1070 32702
Esanatoglia MC 16 2034 34736
Assisi PG 18 28299 63035
Sigillo PG 20 2404 65439

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km NE of Foligno (57155 inhabitants)
34 Km E of Perugia (166134 inhabitants)
68 Km N of Terni (111501 inhabitants)
78 Km SW of Ancona (100861 inhabitants)
78 Km S of Fano (60888 inhabitants)
82 Km E of Arezzo (99543 inhabitants)
84 Km S of Pesaro (94582 inhabitants)
93 Km NW of Teramo (54892 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
Reviewed
Rev100 		ML 0.6 2021-02-05
16:33:52		 43.1593 12.7972 11 2021-02-05
16:39:41		 Sala Sismica INGV-Roma 86859481
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-05 16:33:52 ± 0.1
Latitude 43.1593 ± 0.0072
Longitude 12.7972 ± 0.0086
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 86859481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 846
Semi-minor axis of confidence ellipse (meter) 478
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 219
Circular confidence region, given by single value of horizontal uncertainty (meter) 850.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 120
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.30487
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 86859481
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-05 16:39:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHE. 2021-02-05T16:34:04.71 0.6 undecidable manual S 103 33.8439 50 0.5 45
IV.ATSC.EHN. 2021-02-05T16:34:03.41 0.6 undecidable manual S 343 30.6471 50 0.04 50
IV.MF5.EHZ. 2021-02-05T16:34:03.27 1.0 positive manual P 0.07 0.67
IV.FDMO.HHZ. 2021-02-05T16:34:02.56 0.6 undecidable manual S 120 27.1506 50 0.13 49
IV.CESI.HHZ. 2021-02-05T16:34:00.28 0.6 undecidable manual S 153 19.1697 50 -0.03 51
IV.ASSB.HHZ. 2021-02-05T16:33:59.73 0.6 undecidable manual S 221 17.1717 122 0.02 51
IV.MML1.HNZ. 2021-02-05T16:33:59.07 0.6 undecidable manual S 110 14.9739 126 -0.03 51
IV.ATCC.EHZ. 2021-02-05T16:33:58.66 0.6 undecidable manual S 283 13.0758 130 0.1 51
IV.FDMO.HHZ. 2021-02-05T16:33:58.40 0.6 positive manual P 120 27.1506 50 0.09 50
IV.ATSC.EHN. 2021-02-05T16:33:58.88 0.1 undecidable manual P 343 30.6471 50 0.03 100
IV.CSP1.EHE. 2021-02-05T16:33:58.63 0.1 undecidable manual P 103 33.8439 50 -0.71 83
IV.CESI.HHZ. 2021-02-05T16:33:57.27 1.0 undecidable manual P 153 19.1697 50 0.19 25
IV.MML1.HNZ. 2021-02-05T16:33:56.50 0.3 undecidable manual P 110 14.9739 126 0.12 76
IV.ATCC.EHZ. 2021-02-05T16:33:56.44 3.0 undecidable manual P 283 13.0758 130 0.37 0
IV.ASSB.HHZ. 2021-02-05T16:33:56.53 1.0 undecidable manual P 221 17.1717 122 -0.2 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATCC.EHE. ML:0.9 0.00007324999999999999 0.22 AML other m 2021-02-05T16:33:59.19
IV.ATCC.EHN. ML:0.7 0.0000499 0.32 AML other m 2021-02-05T16:33:59.25
IV.ASSB.HHE. ML:0.6 0.00002885 1.62 AML other m 2021-02-05T16:33:59.90
IV.ASSB.HHN. ML:0.6 0.00003555 0.96 AML other m 2021-02-05T16:34:00.58
IV.CESI.HHN. ML:0.6 0.0000303 0.42 AML other m 2021-02-05T16:34:00.15
IV.CESI.HHE. ML:0.5 0.0000242 1.4 AML other m 2021-02-05T16:34:01.94
IV.FDMO.HHE. ML:0.3 0.0000119817535 0.1408 AML other m 2021-02-05T16:34:02.80
IV.FDMO.HHN. ML:0.8 0.000031595125 0.1408 AML other m 2021-02-05T16:34:02.78
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