Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.6 on date 11-11-2021 and time 23:26:28 (Italy) in region 5 km NW Nocera Umbra (PG)

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

  • 11-11-2021 22:26:28 (UTC)
  • 11-11-2021 23:26:28 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.1550, 12.7640 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 9 15208 21047
Valtopina PG 11 1398 22445
Valfabbrica PG 13 3389 25834
Fiuminata MC 14 1402 27236
Assisi PG 15 28299 55535
Sefro MC 15 422 55957
Fossato di Vico PG 16 2840 58797
Serravalle di Chienti MC 18 1070 59867
Pioraco MC 18 1134 61001
Esanatoglia MC 18 2034 63035
Spello PG 20 8645 71680
Sigillo PG 20 2404 74084
Bastia Umbra PG 20 21874 95958

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km N of Foligno (57155 inhabitants)
31 Km E of Perugia (166134 inhabitants)
67 Km N of Terni (111501 inhabitants)
79 Km E of Arezzo (99543 inhabitants)
79 Km S of Fano (60888 inhabitants)
80 Km SW of Ancona (100861 inhabitants)
85 Km S of Pesaro (94582 inhabitants)
94 Km NW of Teramo (54892 inhabitants)
98 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 2021-11-11
22:26:28		 43.1553 12.7635 11 2021-11-11
22:34:10		 Sala Sismica INGV-Roma 97402181
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-11 22:26:28 ± 0.08
Latitude 43.1553 ± 0.0045
Longitude 12.7635 ± 0.0074
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 97402181

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 560
Semi-minor axis of confidence ellipse (meter) 448
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 82
Circular confidence region, given by single value of horizontal uncertainty (meter) 560.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 94
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.39480
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 11
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 97402181
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-11 22:34:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MMN.HHZ. 2021-11-11T22:28:06.09 3.0 undecidable manual Sn -8.2 0
IX.PGN3.HHZ.02 2021-11-11T22:27:59.40 3.0 undecidable manual Sn -0.06 0
IV.CET2.HHZ. 2021-11-11T22:27:44.53 3.0 undecidable manual Pg 20.290001 0
IV.SPS2.HHZ. 2021-11-11T22:27:30.84 3.0 undecidable manual Pn 1.69 0
IV.SRES.HHZ. 2021-11-11T22:27:00.02 3.0 undecidable manual Sg 0.01 0
IV.TREG.EHZ. 2021-11-11T22:26:58.83 3.0 undecidable manual Pn 11.35 0
IV.TB01.DHZ. 2021-11-11T22:26:41.12 0.6 undecidable manual S 314 36.4413 50 0.33 45
IV.FRON.EHZ. 2021-11-11T22:26:41.73 0.3 undecidable manual S 356 40.3263 50 -0.08 71
IV.TB03.DHZ. 2021-11-11T22:26:41.58 0.3 undecidable manual S 314 39.4272 50 -0.01 72
IV.ATPI.EHZ. 2021-11-11T22:26:37.65 0.1 undecidable manual P 318 43.8228 50 0.9 73
IV.CESI.HHZ. 2021-11-11T22:26:36.47 0.3 undecidable manual S 146 20.2686 50 0.02 75
IV.FRON.EHZ. 2021-11-11T22:26:36.21 0.1 undecidable manual P 356 40.3263 50 0.01 96
IV.ATPC.HNZ. 2021-11-11T22:26:36.35 0.1 undecidable manual P 326 43.7229 50 -0.38 89
IV.TB03.DHZ. 2021-11-11T22:26:36.03 0.1 undecidable manual P 314 39.4272 50 -0.04 96
IV.TB01.DHZ. 2021-11-11T22:26:35.30 0.1 undecidable manual P 314 36.4413 50 -0.32 91
IV.SNTG.HHZ. 2021-11-11T22:26:35.89 0.3 undecidable manual S 52 18.0708 121 0.02 75
IV.ATVO.HHZ. 2021-11-11T22:26:35.66 0.1 undecidable manual P 311 38.2284 50 -0.23 92
IV.FOSV.EHZ. 2021-11-11T22:26:34.93 0.1 undecidable manual S 359 15.4734 125 -0.18 97
IV.ASSB.HHZ. 2021-11-11T22:26:34.80 0.3 undecidable manual S 214 15.0738 126 -0.22 72
IV.ATCC.EHZ. 2021-11-11T22:26:33.87 0.3 undecidable manual S 288 10.4784 136 0.07 75
IV.CESI.HHZ. 2021-11-11T22:26:33.13 0.1 undecidable manual P 146 20.2686 50 0.02 99
IV.SNTG.HHZ. 2021-11-11T22:26:32.85 0.3 undecidable manual P 52 18.0708 121 0.08 74
IV.FOSV.EHZ. 2021-11-11T22:26:32.45 0.1 undecidable manual P 359 15.4734 125 0.12 98
IV.ASSB.HHZ. 2021-11-11T22:26:32.32 0.1 undecidable manual P 214 15.0738 126 0.04 100
IV.ATCC.EHZ. 2021-11-11T22:26:31.76 0.1 undecidable manual P 288 10.4784 136 0.18 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHN. ML:0.9 0.00007335 1.66 AML other m 2021-11-11T22:26:34.90
IV.ASSB.HHE. ML:0.8 0.000059949999999999994 1.64 AML other m 2021-11-11T22:26:34.13
IV.SNTG.HHN. ML:0.5 0.000025399999999999997 0.2 AML other m 2021-11-11T22:26:36.36
IV.SNTG.HHE. ML:0.6 0.000027950000000000002 0.6 AML other m 2021-11-11T22:26:36.44
IV.ATCC.EHE. ML:0.5 0.000038931939999999995 0.1664 AML other m 2021-11-11T22:26:34.21
IV.ATCC.EHN. ML:0.4 0.000029118884999999996 0.1536 AML other m 2021-11-11T22:26:34.20
IV.ATCC.HNE. ML:0.7 0.000057264465 0.7936 AML other m 2021-11-11T22:26:34.42
IV.ATCC.HNN. ML:0.5 0.0000340308 0.2048 AML other m 2021-11-11T22:26:33.89
IV.FOSV.EHE. ML:0.5 0.000027890504999999997 0.1408 AML other m 2021-11-11T22:26:35.16
IV.FOSV.EHN. ML:0.5 0.00002925869 0.1408 AML other m 2021-11-11T22:26:35.51
IV.FOSV.HNE. ML:0.8 0.000056080745 0.4992 AML other m 2021-11-11T22:26:35.16
IV.FOSV.HNN. ML:0.9 0.000074970135 0.6528 AML other m 2021-11-11T22:26:35.51
IV.CESI.HHE. ML:0.5 0.000027165259999999996 0.0768 AML other m 2021-11-11T22:26:36.91
IV.CESI.HHN. ML:0.6 0.00002915057 0.0768 AML other m 2021-11-11T22:26:37.07
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