Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 19-12-2022 and time 12:03:39 (Italy) in region 5 km N Norcia (PG)

A magnitude ML 1.0 earthquake occured in region: 5 km N Norcia (PG), on

  • 19-12-2022 11:03:39 (UTC)
  • 19-12-2022 12:03:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8360, 13.1010 at 10 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
Norcia PG 5 4957 4957
Preci PG 7 724 5681
Castelsantangelo sul Nera MC 8 281 5962
Visso MC 11 1107 7069
Ussita MC 13 444 7513
Cascia PG 15 3217 10730
Cerreto di Spoleto PG 15 1075 11805
Sellano PG 15 1079 12884
Arquata del Tronto AP 18 1178 14062
Montegallo AP 19 523 14585
Poggiodomo PG 19 117 14702
Monte Cavallo MC 19 145 14847
Accumoli RI 20 667 15514
Montemonaco AP 20 604 16118

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Foligno (57155 inhabitants)
48 Km NE of Terni (111501 inhabitants)
53 Km W of Teramo (54892 inhabitants)
59 Km NW of L'Aquila (69753 inhabitants)
65 Km E of Perugia (166134 inhabitants)
93 Km W of Montesilvano (53738 inhabitants)
93 Km SW of Ancona (100861 inhabitants)
94 Km NE of Viterbo (67173 inhabitants)
98 Km NE of Guidonia Montecelio (88673 inhabitants)
100 Km W of Pescara (121014 inhabitants)
100 Km N of Tivoli (56533 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 1.0 2022-12-19
11:03:39		 42.836 13.1013 10 2022-12-19
11:43:22		 Sala Sismica INGV-Roma 112947501
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-12-19 11:03:39 ± 0.07
Latitude 42.8360 ± 0.0036
Longitude 13.1013 ± 0.0049
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 112947501

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 436
Semi-minor axis of confidence ellipse (meter) 247
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 132
Circular confidence region, given by single value of horizontal uncertainty (meter) 440.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 93
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
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) 0.00989
Epicentral distance of station farthest from the epicenter (degree) 0.26620
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 112947501
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-12-19 11:43:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2022-12-19T11:03:50.05 0.1 undecidable manual S 16 29.5482 50 -0.33 92
IV.LNSS.HHE. 2022-12-19T11:03:49.46 0.3 undecidable manual S 191 26.3514 50 -0.05 74
IV.GAVE.EHZ. 2022-12-19T11:03:48.38 0.1 undecidable manual S 227 23.2545 113 -0.13 97
IV.CESI.HHZ. 2022-12-19T11:03:48.78 0.1 undecidable manual S 320 24.6531 112 -0.18 96
IV.FDMO.HHZ. 2022-12-19T11:03:47.98 0.3 undecidable manual S 357 22.2555 114 -0.23 71
IV.MMO1.EHZ. 2022-12-19T11:03:47.25 0.1 undecidable manual S 69 19.6692 117 -0.13 98
7F.SIB2.EHE. 2022-12-19T11:03:46.48 0.3 undecidable manual S 70 17.5713 119 -0.26 71
IV.FDMO.HHZ. 2022-12-19T11:03:45.28 0.3 undecidable manual P 357 22.2555 114 0.65 64
7F.SIB3.EHE. 2022-12-19T11:03:45.65 0.1 undecidable manual S 72 14.3745 124 -0.16 98
IV.CESI.HHZ. 2022-12-19T11:03:45.09 0.1 undecidable manual P 320 24.6531 112 0.02 99
IV.MC2.EHZ. 2022-12-19T11:03:45.19 0.1 undecidable manual S 40 10.9779 132 0.31 95
IV.CSP1.EHZ. 2022-12-19T11:03:45.94 0.1 undecidable manual P 16 29.5482 50 0.05 97
7F.SIB1.EHE. 2022-12-19T11:03:45.58 0.6 undecidable manual S 65 15.1737 123 -0.46 46
IV.LNSS.HHE. 2022-12-19T11:03:45.40 0.3 undecidable manual P 191 26.3514 50 0.01 74
IV.MMO1.EHZ. 2022-12-19T11:03:44.35 0.1 undecidable manual P 69 19.6692 117 0.19 96
IV.GAVE.EHZ. 2022-12-19T11:03:44.88 0.3 undecidable manual P 227 23.2545 113 0.07 74
7F.SIB1.EHE. 2022-12-19T11:03:43.46 0.3 undecidable manual P 65 15.1737 123 0.08 75
7F.SIB2.EHE. 2022-12-19T11:03:43.90 0.1 undecidable manual P 70 17.5713 119 0.11 98
7F.SIB3.EHE. 2022-12-19T11:03:43.37 0.1 undecidable manual P 72 14.3745 124 0.12 99
IV.MC2.EHZ. 2022-12-19T11:03:43.11 0.1 undecidable manual P 40 10.9779 132 0.4 94
IV.NRCA.HHZ. 2022-12-19T11:03:42.84 0.1 undecidable manual S 105 1.0989 174 -0.36 96
IV.NRCA.HHZ. 2022-12-19T11:03:41.91 0.1 undecidable manual P 105 1.0989 174 0.17 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.5 0.0005933141 0.0832 AML other m 2022-12-19T11:03:43.15
IV.NRCA.HHN. ML:1.4 0.0005405 0.08 AML other m 2022-12-19T11:03:43.04
IV.NRCA.HNE. ML:0.0 0.00053878325 0.0896 AML other m 2022-12-19T11:03:43.16
IV.NRCA.HNN. ML:0.0 0.0004978973 0.0704 AML other m 2022-12-19T11:03:43.04
IV.MC2.EHE. ML:1.1 0.00015121794999999998 0.1856 AML other m 2022-12-19T11:03:45.32
IV.MC2.EHN. ML:1.0 0.000126178555 0.224 AML other m 2022-12-19T11:03:46.85
IV.CESI.HNE. ML:1.3 0.00011574623500000001 1.12 AML other m 2022-12-19T11:03:54.93
IV.CESI.HNN. ML:1.2 0.00010582204999999998 0.6272 AML other m 2022-12-19T11:03:57.89
IV.CESI.HHE. ML:0.2 0.000009112432 0.48 AML other m 2022-12-19T11:03:46.52
IV.CESI.HHN. ML:0.4 0.000014671605 0.2048 AML other m 2022-12-19T11:03:48.00
IV.CSP1.EHE. ML:1.1 0.00006313989500000001 0.9792 AML other m 2022-12-19T11:03:45.70
IV.CSP1.EHN. ML:0.9 0.000040653564500000006 1.1968 AML other m 2022-12-19T11:03:57.56
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