Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.6 on date 15-02-2021 and time 09:08:43 (Italy) in region 8 km SE Nocera Umbra (PG)

A magnitude ML 0.6 earthquake occured in region: 8 km SE Nocera Umbra (PG), on

  • 15-02-2021 08:08:43 (UTC)
  • 15-02-2021 09:08:43 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.0580, 12.8530 at 8 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 8 5839 5839
Valtopina PG 8 1398 7237
Serravalle di Chienti MC 8 1070 8307
Sefro MC 13 422 8729
Monte Cavallo MC 14 145 8874
Muccia MC 16 915 9789
Fiuminata MC 16 1402 11191
Pieve Torina MC 16 1458 12649
Spello PG 16 8645 21294
Foligno PG 17 57155 78449
Pioraco MC 17 1134 79583
Pievebovigliana MC 19 866 80449
Assisi PG 19 28299 108748
Fiordimonte MC 19 202 108950
Camerino MC 20 6974 115924
Sellano PG 20 1079 117003
Gualdo Tadino PG 20 15208 132211

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km NE of Foligno (57155 inhabitants)
38 Km E of Perugia (166134 inhabitants)
58 Km N of Terni (111501 inhabitants)
82 Km SW of Ancona (100861 inhabitants)
82 Km NW of Teramo (54892 inhabitants)
89 Km S of Fano (60888 inhabitants)
90 Km NW of L'Aquila (69753 inhabitants)
91 Km SE of Arezzo (99543 inhabitants)
94 Km NE of Viterbo (67173 inhabitants)
95 Km S of Pesaro (94582 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 2021-02-15
08:08:43		 43.0582 12.853 8 2021-02-15
08:24:46		 Sala Sismica INGV-Roma 87171741
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-15 08:08:43 ± 0.21
Latitude 43.0582 ± 0.0063
Longitude 12.8530 ± 0.0049
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 87171741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 531
Semi-minor axis of confidence ellipse (meter) 432
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 355
Circular confidence region, given by single value of horizontal uncertainty (meter) 530.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 119
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.25900
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 87171741
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-15 08:24:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2021-02-15T08:08:54.13 0.3 undecidable manual S 82 28.749 106 -0.04 73
IV.FOSV.EHZ. 2021-02-15T08:08:53.49 3.0 undecidable manual S -0.01 0
IV.SNTG.HHZ. 2021-02-15T08:08:52.07 0.3 undecidable manual S 18 22.9548 109 -0.18 72
IV.FDMO.HHZ. 2021-02-15T08:08:50.98 0.3 undecidable manual S 97 19.1697 113 -0.04 75
IV.ASSB.HHZ. 2021-02-15T08:08:49.88 0.3 undecidable manual S 264 15.873 117 -0.1 74
IV.SNTG.HHZ. 2021-02-15T08:08:49.18 0.3 undecidable manual P 18 22.9548 109 0.49 67
IV.CSP1.EHZ. 2021-02-15T08:08:49.57 0.3 undecidable manual P 82 28.749 106 -0.22 71
IV.ASSB.HHZ. 2021-02-15T08:08:47.31 0.1 undecidable manual P 264 15.873 117 -0.06 100
IV.FDMO.HHZ. 2021-02-15T08:08:47.95 0.1 undecidable manual P 97 19.1697 113 -0.02 100
IV.CESI.HHZ. 2021-02-15T08:08:47.58 0.3 undecidable manual S 145 7.2927 138 0.02 77
IV.CESI.HHZ. 2021-02-15T08:08:46.13 0.1 undecidable manual P 145 7.2927 138 0.15 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:0.4 0.000039900655 0.064 AML other m 2021-02-15T08:08:47.90
IV.CESI.HHN. ML:0.4 0.000040993499000000004 0.064 AML other m 2021-02-15T08:08:47.80
IV.ASSB.HHE. ML:0.4 0.000025076800000000004 0.1152 AML other m 2021-02-15T08:08:51.85
IV.ASSB.HHN. ML:0.8 0.000055942635 0.1408 AML other m 2021-02-15T08:08:50.04
IV.FDMO.HHE. ML:0.7 0.000041878262499999996 0.1024 AML other m 2021-02-15T08:08:51.15
IV.FDMO.HHN. ML:0.8 0.00004304787 0.1152 AML other m 2021-02-15T08:08:51.33
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