Earthquake with magnitude of ML 1.1 on date 28-11-2021 and time 15:54:42 (Italy) in region 6 km W Nocera Umbra (PG)

A magnitude ML 1.1 earthquake occured in region: 6 km W Nocera Umbra (PG), on

  • 28-11-2021 14:54:42 (UTC)
  • 28-11-2021 15:54:42 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.1230, 12.7200 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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.

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 6 5839 5839
Valtopina PG 8 1398 7237
Assisi PG 10 28299 35536
Valfabbrica PG 10 3389 38925
Gualdo Tadino PG 13 15208 54133
Spello PG 15 8645 62778
Bastia Umbra PG 15 21874 84652
Cannara PG 18 4305 88957
Foligno PG 19 57155 146112
Fiuminata MC 19 1402 147514
Sefro MC 19 422 147936
Fossato di Vico PG 19 2840 150776
Serravalle di Chienti MC 20 1070 151846

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km N of Foligno (57155 inhabitants)
27 Km E of Perugia (166134 inhabitants)
63 Km N of Terni (111501 inhabitants)
78 Km E of Arezzo (99543 inhabitants)
84 Km SW of Fano (60888 inhabitants)
85 Km SW of Ancona (100861 inhabitants)
89 Km S of Pesaro (94582 inhabitants)
93 Km NE of Viterbo (67173 inhabitants)
95 Km NW of Teramo (54892 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
Bulletin
Rev1000
ML 1.1 2021-11-28
14:54:42
43.1233 12.7202 10 2022-03-30
13:04:28
Bollettino Sismico Italiano INGV 99607851
Reviewed
Rev100
ML 1.5 2021-11-28
14:54:42
43.1213 12.706 10 2021-11-28
15:02:33
Sala Sismica INGV-Roma 97910191
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-28 14:54:42 ± 0.04
Latitude 43.1233 ± 0.0027
Longitude 12.7202 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 99607851

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 340
Semi-minor axis of confidence ellipse (meter) 62
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 217
Circular confidence region, given by single value of horizontal uncertainty (meter) 340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 87
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.35523
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 97910191
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-28 15:02:33

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 9
Type of magnitude ML
Reference to an origin 99607851
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-03 17:56:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.USI.HHZ. 2021-11-28T14:56:41.85 3.0 undecidable manual Sn -2.84 0
IV.MCEL.HHZ. 2021-11-28T14:56:39.35 3.0 undecidable manual Sg 14.63 0
IX.COL3.HHZ.02 2021-11-28T14:56:20.77 3.0 undecidable manual Sg 8.43 0
IV.AGLI.HHZ. 2021-11-28T14:56:14.95 3.0 undecidable manual Sn -2.61 0
IV.CDRU.HHZ. 2021-11-28T14:56:11.02 3.0 undecidable manual Sn -4.94 0
IV.MRB1.HHZ. 2021-11-28T14:56:05.59 3.0 undecidable manual Sg 5.76 0
IV.PAOL.HHZ. 2021-11-28T14:55:55.50 3.0 undecidable manual Sn -1.88 0
IV.SGG.HHZ. 2021-11-28T14:55:48.98 3.0 undecidable manual Sg 0.77 0
IV.EUCT.HNZ. 2021-11-28T14:55:43.44 3.0 negative manual Pg 7.8 0
IV.MCRV.HHZ. 2021-11-28T14:55:34.66 3.0 undecidable manual Pg 3.58 0
IX.SCL3.EHZ.02 2021-11-28T14:55:34.52 3.0 undecidable manual Pn 0.29 0
IV.POFI.HHZ. 2021-11-28T14:55:31.48 3.0 undecidable manual S -3.57 0
IV.VITU.HNZ. 2021-11-28T14:55:28.94 3.0 undecidable manual Pg 5.58 0
IV.RIBO.EHZ.01 2021-11-28T14:55:23.00 3.0 undecidable manual S -3.78 0
IT.PLTA.HNZ. 2021-11-28T14:55:20.95 3.0 undecidable manual Pg 3.7 0
IV.CELB.HHZ. 2021-11-28T14:55:18.83 3.0 undecidable manual Pg 2.45 0
IV.RIBO.EHZ.01 2021-11-28T14:55:08.63 3.0 undecidable manual P 1.08 0
IV.PE3.EHZ. 2021-11-28T14:55:04.29 3.0 undecidable manual S -1.04 0
IV.ATVA.EHE. 2021-11-28T14:54:55.28 0.6 undecidable manual S 296 39.1275 50 -0.17 46
IV.CSP1.EHZ. 2021-11-28T14:54:55.90 0.6 undecidable manual S 95 39.4272 50 0.38 44
IV.FDMO.HHZ. 2021-11-28T14:54:53.30 0.6 undecidable manual S 108 31.2465 50 -0.05 48
IV.ATLO.EHE. 2021-11-28T14:54:53.93 0.3 undecidable manual S 310 33.0447 50 0.1 71
IV.ATSC.EHN. 2021-11-28T14:54:53.88 0.6 undecidable manual S 355 33.4443 50 -0.06 48
IV.MURB.HNZ. 2021-11-28T14:54:51.02 0.6 undecidable manual S 315 22.1556 114 0.36 45
IV.SNTG.HHZ. 2021-11-28T14:54:50.90 0.6 undecidable manual S 51 23.0547 113 -0.05 48
IV.CESI.HHZ. 2021-11-28T14:54:50.24 0.6 undecidable manual S 131 19.869 116 0.29 46
IV.ATVA.EHE. 2021-11-28T14:54:50.04 0.6 undecidable manual P 296 39.1275 50 0.16 46
IV.FOSV.EHZ. 2021-11-28T14:54:49.83 0.6 undecidable manual S 10 19.3695 117 0.06 49
IV.CSP1.EHZ. 2021-11-28T14:54:49.93 0.3 undecidable manual P 95 39.4272 50 0.01 71
IV.FDMO.HHZ. 2021-11-28T14:54:48.48 0.3 undecidable manual P 108 31.2465 50 -0.18 70
IV.ATLO.EHE. 2021-11-28T14:54:48.72 0.3 undecidable manual P 310 33.0447 50 -0.22 69
IV.ATSC.EHN. 2021-11-28T14:54:48.78 0.1 undecidable manual P 355 33.4443 50 -0.22 92
IV.ATFO.HHZ. 2021-11-28T14:54:48.67 0.3 undecidable manual P 336 29.5482 50 0.28 69
IV.SNTG.HHZ. 2021-11-28T14:54:47.09 0.3 undecidable manual P 51 23.0547 113 -0.19 71
IV.ASSB.HHZ. 2021-11-28T14:54:47.03 0.6 undecidable manual S 209 10.2786 134 -0.14 49
IV.MURB.HNZ. 2021-11-28T14:54:47.32 0.3 undecidable manual P 315 22.1556 114 0.21 70
IV.FOSV.EHZ. 2021-11-28T14:54:46.55 0.3 undecidable manual P 10 19.3695 117 -0.05 73
IV.CESI.HHZ. 2021-11-28T14:54:46.70 0.3 undecidable manual P 131 19.869 116 0 74
IV.ATCC.EHZ. 2021-11-28T14:54:46.85 0.3 undecidable manual S 317 9.4794 136 -0.12 73
IV.ASSB.HHZ. 2021-11-28T14:54:45.06 0.1 positive manual P 209 10.2786 134 -0.04 99
IV.ATCC.EHZ. 2021-11-28T14:54:44.97 0.1 positive manual P 317 9.4794 136 -0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATCC.EHE. ML:1.0 0.0001283123 0.1024 AML other m 2021-11-28T14:54:47.24
IV.ATCC.HNE. ML:1.1 0.0001584785 0.0896 AML other m 2021-11-28T14:54:47.88
IV.ATCC.EHN. ML:1.0 0.00013079891499999998 0.1664 AML other m 2021-11-28T14:54:47.77
IV.ASSB.HHE. ML:1.1 0.00016721894999999998 0.1024 AML other m 2021-11-28T14:54:48.18
IV.ASSB.HHN. ML:1.1 0.00017299999999999998 0.12 AML other m 2021-11-28T14:54:48.47
IV.ATCC.HNN. ML:1.0 0.00013892368 0.32 AML other m 2021-11-28T14:54:49.18
IV.FOSV.HNE. ML:1.2 0.0001188312 0.1792 AML other m 2021-11-28T14:54:50.04
IV.FOSV.EHE. ML:1.3 0.000165 0.32 AML other m 2021-11-28T14:54:50.20
IV.FOSV.EHN. ML:1.3 0.00016 0.3 AML other m 2021-11-28T14:54:50.19
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