Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 20-11-2022 and time 07:43:43 (UTC) in region 4 km E Nocera Umbra (PG)

A magnitude ML 1.4 earthquake occured in region: 4 km E Nocera Umbra (PG), on

  • 20-11-2022 07:43:43 (UTC)
  • 20-11-2022 08:43:43 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.0980, 12.8330 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.

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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 4 5839 5839
Valtopina PG 8 1398 7237
Serravalle di Chienti MC 10 1070 8307
Sefro MC 11 422 8729
Fiuminata MC 13 1402 10131
Pioraco MC 15 1134 11265
Gualdo Tadino PG 15 15208 26473
Muccia MC 17 915 27388
Spello PG 18 8645 36033
Monte Cavallo MC 18 145 36178
Assisi PG 18 28299 64477
Pieve Torina MC 19 1458 65935
Foligno PG 19 57155 123090
Esanatoglia MC 20 2034 125124
Camerino MC 20 6974 132098
Valfabbrica PG 20 3389 135487

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km NE of Foligno (57155 inhabitants)
36 Km E of Perugia (166134 inhabitants)
62 Km N of Terni (111501 inhabitants)
80 Km SW of Ancona (100861 inhabitants)
84 Km S of Fano (60888 inhabitants)
86 Km NW of Teramo (54892 inhabitants)
87 Km E of Arezzo (99543 inhabitants)
91 Km S of Pesaro (94582 inhabitants)
95 Km NW of L'Aquila (69753 inhabitants)
96 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
Bulletin
Rev1000 		ML 1.4 2022-11-20
07:43:43		 43.0983 12.8333 10 2024-03-01
15:28:14		 Bollettino Sismico Italiano INGV 113454661
Reviewed
Rev100 		ML 1.5 2022-11-20
07:43:43		 43.0975 12.8297 10 2022-11-20
07:51:12		 Sala Sismica INGV-Roma 112020121
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-11-20 07:43:43 ± 0.03
Latitude 43.0983 ± 0.0018
Longitude 12.8333 ± 0.0025
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 113454661

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 218
Semi-minor axis of confidence ellipse (meter) 168
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 229
Circular confidence region, given by single value of horizontal uncertainty (meter) 220.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 95
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.42628
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 113454661
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-01-10 16:05:51

ML:1.5

Field Value
Value 1.5
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 112020121
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-11-20 07:51:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RIBO.EHZ.01 2022-11-20T07:44:28.11 3.0 undecidable manual S 2 0
IV.PIEI.HHZ. 2022-11-20T07:44:01.64 3.0 undecidable manual S -0.24 0
IV.NRCA.HHZ. 2022-11-20T07:43:56.30 0.6 undecidable manual S 142 37.1295 50 -0.16 47
IV.MC2.EHZ. 2022-11-20T07:43:56.00 1.0 undecidable manual S 126 35.5422 50 -0.01 24
IV.ARVD.HHZ. 2022-11-20T07:43:56.80 3.0 undecidable manual S -2.43 0
IV.EL6.EHZ. 2022-11-20T07:43:55.50 0.3 undecidable manual S 40 33.5442 50 0 73
IV.MURB.HHZ. 2022-11-20T07:43:55.10 0.6 undecidable manual S 306 30.9468 50 0.31 46
IV.CSP1.EHZ. 2022-11-20T07:43:54.70 0.3 undecidable manual S 91 30.1476 50 0.13 72
7F.SIB2.EHE. 2022-11-20T07:43:52.11 0.3 undecidable manual P 121 44.5221 50 -0.15 70
IV.FRON.EHZ. 2022-11-20T07:43:52.88 3.0 negative manual P 47.3193 0.2 0
IV.FDMO.HHZ. 2022-11-20T07:43:52.00 0.3 undecidable manual S 108 21.6672 115 -0.11 73
IV.MMO1.EHN. 2022-11-20T07:43:52.45 0.3 undecidable manual P 119 45.7209 50 0.01 72
IV.FOSV.EHZ. 2022-11-20T07:43:52.20 1.0 undecidable manual S 345 22.5552 114 -0.19 24
IV.SSFR.HHZ. 2022-11-20T07:43:51.27 3.0 positive manual P 37.7289 0.07 0
IV.SNTG.HHZ. 2022-11-20T07:43:51.30 0.6 undecidable manual S 26 19.4694 117 -0.1 49
IV.ATCC.EHZ. 2022-11-20T07:43:51.20 0.3 undecidable manual S 302 18.3705 118 0.12 74
7F.SIB1.EHE. 2022-11-20T07:43:51.87 0.1 undecidable manual P 122 42.0246 50 0 96
IV.CING.HHZ. 2022-11-20T07:43:51.92 0.1 positive manual P 43 42.4242 50 -0.01 96
IV.EL6.EHZ. 2022-11-20T07:43:50.55 0.1 positive manual P 40 33.5442 50 -0.01 98
IV.MC2.EHZ. 2022-11-20T07:43:50.91 0.3 undecidable manual P 126 35.5422 50 0.05 73
IV.MURB.HHZ. 2022-11-20T07:43:50.15 0.3 undecidable manual P 306 30.9468 50 -0.01 74
IV.NRCA.HHZ. 2022-11-20T07:43:50.98 0.1 undecidable manual P 142 37.1295 50 -0.14 95
IV.ASSB.HHZ. 2022-11-20T07:43:49.90 0.3 undecidable manual S 246 15.4734 123 -0.3 71
IV.CESI.HHZ. 2022-11-20T07:43:49.40 1.0 undecidable manual S 151 11.877 130 0.2 24
IV.CSP1.EHZ. 2022-11-20T07:43:49.99 0.1 undecidable manual P 91 30.1476 50 -0.04 98
IV.SNTG.HHZ. 2022-11-20T07:43:48.24 0.1 undecidable manual P 26 19.4694 117 0.04 100
IV.FOSV.EHZ. 2022-11-20T07:43:48.43 0.3 undecidable manual P 345 22.5552 114 -0.34 70
IV.FDMO.HHZ. 2022-11-20T07:43:48.61 0.1 undecidable manual P 108 21.6672 115 0 100
IV.ATCC.EHZ. 2022-11-20T07:43:48.12 0.1 undecidable manual P 302 18.3705 118 0.1 98
IT.MTCL.HGZ. 2022-11-20T07:43:48.13 0.3 undecidable manual P 131 17.7711 119 0.23 72
IV.ASSB.HHZ. 2022-11-20T07:43:47.56 0.1 undecidable manual P 246 15.4734 123 0.05 100
IV.CESI.HHZ. 2022-11-20T07:43:47.10 0.1 undecidable manual P 151 11.877 130 0.17 98
IV.FIU1.HNZ. 2022-11-20T07:43:47.19 0.6 undecidable manual P 38 12.7761 128 0.12 50
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHN. ML:1.5 0.0003165 0.08 AML other m 2022-11-20T07:43:50.67
IV.ASSB.HHE. ML:1.5 0.00028849999999999997 1.28 AML other m 2022-11-20T07:43:50.32
IV.ATCC.EHE. ML:1.6 0.0003179999999999999 0.2 AML other m 2022-11-20T07:43:51.58
IV.ATCC.EHN. ML:1.4 0.000191 1.3 AML other m 2022-11-20T07:43:51.96
IV.FDMO.HHE. ML:1.3 0.00014250000000000002 0.1 AML other m 2022-11-20T07:43:52.27
IV.FDMO.HHN. ML:1.5 0.00020800000000000001 0.18 AML other m 2022-11-20T07:43:52.28
IV.NRCA.HHE. ML:1.3 0.00008025 0.42 AML other m 2022-11-20T07:43:57.47
IV.NRCA.HHN. ML:1.4 0.00010045 0.5 AML other m 2022-11-20T07:43:57.86
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