Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 09-12-2022 and time 10:53:07 (Italy) in region 5 km N Norcia (PG)

A magnitude ML 1.4 earthquake occured in region: 5 km N Norcia (PG), on

  • 09-12-2022 09:53:07 (UTC)
  • 09-12-2022 10:53:07 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8370, 13.0880 at 12 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
Norcia PG 5 4957 4957
Preci PG 6 724 5681
Castelsantangelo sul Nera MC 8 281 5962
Visso MC 11 1107 7069
Ussita MC 13 444 7513
Cerreto di Spoleto PG 14 1075 8588
Sellano PG 14 1079 9667
Cascia PG 14 3217 12884
Arquata del Tronto AP 19 1178 14062
Poggiodomo PG 19 117 14179
Monte Cavallo MC 19 145 14324
Vallo di Nera PG 20 364 14688

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
54 Km W of Teramo (54892 inhabitants)
60 Km NW of L'Aquila (69753 inhabitants)
64 Km E of Perugia (166134 inhabitants)
93 Km NE of Viterbo (67173 inhabitants)
94 Km SW of Ancona (100861 inhabitants)
94 Km W of Montesilvano (53738 inhabitants)
98 Km NE of Guidonia Montecelio (88673 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
Bulletin
Rev1000 		ML 1.4 2022-12-09
09:53:07		 42.8367 13.0885 12 2024-03-01
15:28:13		 Bollettino Sismico Italiano INGV 113250901
Reviewed
Rev100 		ML 1.5 2022-12-09
09:53:07		 42.8378 13.0882 13 2022-12-09
09:59:57		 Sala Sismica INGV-Roma 112659231
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-12-09 09:53:07 ± 0.09
Latitude 42.8367 ± 0.0045
Longitude 13.0885 ± 0.0074
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 113250901

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 546
Semi-minor axis of confidence ellipse (meter) 371
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 227
Circular confidence region, given by single value of horizontal uncertainty (meter) 550.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 114
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.47844
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 112659231
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-12-09 09:59:57

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 113250901
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-06-23 00:08:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.RORO.HHZ. 2022-12-09T09:54:30.14 3.0 undecidable manual Pg 25.809999 0
IV.TRIF.CHZ. 2022-12-09T09:54:24.32 3.0 undecidable manual Sn 3.8 0
IV.ACATE.HNZ. 2022-12-09T09:54:09.80 3.0 positive manual Pg 16.33 0
IV.BARO.EHZ. 2022-12-09T09:54:07.68 3.0 undecidable manual Sg 9.07 0
IV.SPS2.HHZ. 2022-12-09T09:53:55.67 3.0 undecidable manual Sn -0.19 0
IV.PLAC.HHZ. 2022-12-09T09:53:47.09 3.0 negative manual Pg 15.61 0
IV.ZCCA.HHZ. 2022-12-09T09:53:45.50 3.0 undecidable manual Pn 7.35 0
IV.SFI.EHZ. 2022-12-09T09:53:42.10 3.0 positive manual Pg 14.34 0
IV.GRI.EHZ. 2022-12-09T09:53:36.17 3.0 undecidable manual Pn 9.81 0
IV.ATCC.EHZ. 2022-12-09T09:53:24.93 0.6 undecidable manual S 317 53.1024 92 0.75 38
IX.SCL3.EHZ.02 2022-12-09T09:53:24.01 3.0 undecidable manual Sn -0.17 0
IV.ASSB.HHZ. 2022-12-09T09:53:21.19 0.6 undecidable manual S 303 41.7249 92 0.05 47
IV.T0110.HHZ. 2022-12-09T09:53:19.50 3.0 undecidable manual Sg -7.87 0
IV.MML1.EHZ. 2022-12-09T09:53:18.49 0.6 undecidable manual S 343 32.1456 93 -0.1 47
IV.LNSS.HHZ. 2022-12-09T09:53:17.08 0.6 undecidable manual S 189 26.2515 95 0.06 48
IV.ATCC.EHZ. 2022-12-09T09:53:17.17 0.3 undecidable manual P 317 53.1024 92 0.02 70
IV.CESI.HHZ. 2022-12-09T09:53:16.31 0.6 undecidable manual S 321 23.8539 96 -0.09 48
IV.ASSB.HHZ. 2022-12-09T09:53:15.19 0.3 undecidable manual P 303 41.7249 92 -0.21 68
IV.FDMO.HHZ. 2022-12-09T09:53:15.76 0.6 undecidable manual S 360 22.1556 97 -0.18 47
IV.MML1.EHZ. 2022-12-09T09:53:13.73 0.3 undecidable manual P 343 32.1456 93 -0.19 69
IV.MC2.EHZ. 2022-12-09T09:53:13.51 0.6 undecidable manual S 45 11.6772 121 0.25 47
IV.LNSS.HHZ. 2022-12-09T09:53:13.00 0.3 undecidable manual P 189 26.2515 95 -0.02 72
IV.FDMO.HHZ. 2022-12-09T09:53:12.26 0.1 negative manual P 360 22.1556 97 -0.13 95
IV.CESI.HHZ. 2022-12-09T09:53:12.60 0.1 undecidable manual P 321 23.8539 96 -0.06 96
IV.NRCA.HNZ. 2022-12-09T09:53:11.56 0.6 undecidable manual S 100 2.0979 168 -0.2 49
IV.MC2.EHZ. 2022-12-09T09:53:10.99 0.1 undecidable manual P 45 11.6772 121 0.14 97
IV.NRCA.HNZ. 2022-12-09T09:53:10.03 0.1 negative manual P 100 2.0979 168 0.05 100
IV.SGG.HHZ. 2022-12-09T09:53:03.64 3.0 undecidable manual P 1.81 0
IV.PTRJ.HHZ. 2022-12-09T09:53:00.05 3.0 undecidable manual P -0.7 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSP1.EHE. ML:1.6 0.000199 0.42 AML other m 2022-12-09T09:53:11.41
IV.FDMO.HHE. ML:1.2 0.0001009 1.56 AML other m 2022-12-09T09:53:16.85
IV.FDMO.HHN. ML:1.2 0.00009845000000000001 0.4 AML other m 2022-12-09T09:53:16.12
IV.CESI.HHE. ML:1.6 0.000255 0.14 AML other m 2022-12-09T09:53:16.46
IV.CESI.HHN. ML:1.9 0.0004525 0.38 AML other m 2022-12-09T09:53:16.73
IV.LNSS.HHN. ML:1.6 0.0001945 0.78 AML other m 2022-12-09T09:53:17.68
IV.LNSS.HHE. ML:1.4 0.00014050000000000003 0.12 AML other m 2022-12-09T09:53:17.92
IV.MML1.EHN. ML:1.2 0.00007145 0.78 AML other m 2022-12-09T09:53:19.58
IV.CSP1.EHN. ML:1.7 0.00023050000000000002 0.58 AML other m 2022-12-09T09:53:19.11
IV.MML1.EHE. ML:1.3 0.0000892 0.22 AML other m 2022-12-09T09:53:19.57
IV.ASSB.HHE. ML:1.4 0.00007364999999999999 0.16 AML other m 2022-12-09T09:53:21.52
IV.ASSB.HHN. ML:1.4 0.0000733 0.42 AML other m 2022-12-09T09:53:21.86
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