Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 02-12-2023 and time 16:05:40 (Italy) in region Norcia (PG)

A magnitude ML 2.2 earthquake occured in region: Norcia (PG), on

  • 02-12-2023 15:05:40 (UTC)
  • 02-12-2023 16:05:40 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7950, 13.0930 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 0 4957 4957
Preci PG 10 724 5681
Cascia PG 11 3217 8898
Castelsantangelo sul Nera MC 12 281 9179
Cerreto di Spoleto PG 15 1075 10254
Visso MC 15 1107 11361
Poggiodomo PG 16 117 11478
Accumoli RI 17 667 12145
Arquata del Tronto AP 17 1178 13323
Ussita MC 17 444 13767
Sellano PG 17 1079 14846
Vallo di Nera PG 19 364 15210
Monteleone di Spoleto PG 20 599 15809

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km SE of Foligno (57155 inhabitants)
45 Km NE of Terni (111501 inhabitants)
52 Km W of Teramo (54892 inhabitants)
55 Km NW of L'Aquila (69753 inhabitants)
67 Km SE of Perugia (166134 inhabitants)
91 Km E of Viterbo (67173 inhabitants)
92 Km W of Montesilvano (53738 inhabitants)
93 Km NE of Guidonia Montecelio (88673 inhabitants)
95 Km N of Tivoli (56533 inhabitants)
98 Km SW of Ancona (100861 inhabitants)
99 Km W of Pescara (121014 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 2.2 2023-12-02
15:05:40		 42.7947 13.0932 10 2023-12-02
15:15:25		 Sala Sismica INGV-Roma 123691511
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-12-02 15:05:40 ± 0.05
Latitude 42.7947 ± 0.0018
Longitude 13.0932 ± 0.0037
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 123691511

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 336
Semi-minor axis of confidence ellipse (meter) 97
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 74
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) 80
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.52610
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 18
Magnitude information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 123691511
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-12-02 15:15:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CQUE.HHZ. 2023-12-02T15:06:42.05 3.0 undecidable manual Sn 0.13 0
IV.RIBO.EHZ.01 2023-12-02T15:06:27.65 3.0 undecidable manual S -0.53 0
IV.POFI.HHZ. 2023-12-02T15:06:17.70 3.0 undecidable manual S -2.34 0
IV.RIBO.EHZ.01 2023-12-02T15:06:11.65 3.0 negative manual P 4.37 0
IV.FIAM.HHZ. 2023-12-02T15:05:59.23 0.3 undecidable manual S 178 58.3971 50 0.24 67
IV.SNTG.HHZ. 2023-12-02T15:05:58.09 0.3 undecidable manual S 346 52.503 50 0.67 60
IV.GIGS.HHZ. 2023-12-02T15:05:57.61 0.3 undecidable manual S 134 54.501 50 -0.32 67
IV.ASSB.HHZ. 2023-12-02T15:05:55.28 0.3 undecidable manual S 308 44.7219 50 -0.05 72
IV.ARVD.HHZ. 2023-12-02T15:05:54.52 3.0 negative manual P -0.39 0
IV.ARRO.EHZ. 2023-12-02T15:05:53.01 0.6 undecidable manual S 228 35.8419 50 0.06 49
IV.MF5.EHZ. 2023-12-02T15:05:53.79 0.3 undecidable manual S 54 36.741 50 0.61 64
IV.MML1.EHZ. 2023-12-02T15:05:53.37 0.3 undecidable manual S 344 36.741 50 0.18 71
IV.CSP1.EHZ. 2023-12-02T15:05:52.37 0.3 undecidable manual S 15 34.2435 50 -0.14 72
IV.RM33.EHZ. 2023-12-02T15:05:52.31 0.3 undecidable manual S 163 33.2445 50 0.06 73
IV.FIAM.HHZ. 2023-12-02T15:05:51.20 0.1 undecidable manual P 178 58.3971 50 -0.05 93
IV.CESI.HHZ. 2023-12-02T15:05:50.68 0.3 undecidable manual S 327 27.9498 50 -0.16 72
IV.FDMO.HHZ. 2023-12-02T15:05:50.22 0.3 undecidable manual S 359 26.8509 50 -0.33 70
IV.GIGS.HHZ. 2023-12-02T15:05:50.24 0.1 undecidable manual P 134 54.501 50 -0.4 87
IV.SMA1.EHZ. 2023-12-02T15:05:50.95 0.3 undecidable manual S 133 26.8509 50 0.4 69
IV.SNTG.HHZ. 2023-12-02T15:05:50.24 0.1 undecidable manual P 346 52.503 50 -0.11 93
IV.TERO.HHZ. 2023-12-02T15:05:49.03 0.1 undecidable manual P 114 45.8208 50 -0.27 91
IT.MTCL.HGZ. 2023-12-02T15:05:49.36 0.3 undecidable manual S 341 23.3544 113 -0.15 73
IV.LNSS.HHZ. 2023-12-02T15:05:49.08 0.3 undecidable manual S 191 21.6672 115 0.11 74
IV.MMO1.EHZ. 2023-12-02T15:05:49.01 0.3 undecidable manual S 58 22.2555 114 -0.14 73
IV.MTRA.EHZ. 2023-12-02T15:05:49.90 0.3 undecidable manual S 100 25.0527 112 -0.14 73
IV.ASSB.HHZ. 2023-12-02T15:05:49.10 0.1 undecidable manual P 308 44.7219 50 -0.04 96
IV.MF5.EHZ. 2023-12-02T15:05:48.17 0.1 undecidable manual P 54 36.741 50 0.27 93
IV.CSP1.EHZ. 2023-12-02T15:05:47.52 0.1 undecidable manual P 15 34.2435 50 0 98
IV.RM33.EHZ. 2023-12-02T15:05:47.19 0.1 undecidable manual P 163 33.2445 50 -0.17 95
IV.MML1.EHZ. 2023-12-02T15:05:47.78 0.1 undecidable manual P 344 36.741 50 -0.12 96
IV.ARRO.EHZ. 2023-12-02T15:05:47.85 0.3 undecidable manual P 228 35.8419 50 0.08 72
IV.MTRA.EHZ. 2023-12-02T15:05:46.11 0.1 undecidable manual P 100 25.0527 112 0.02 100
IV.SMA1.EHZ. 2023-12-02T15:05:46.36 0.1 undecidable manual P 133 26.8509 50 -0.02 99
IV.CESI.HHZ. 2023-12-02T15:05:46.54 0.1 undecidable manual P 327 27.9498 50 -0.01 99
IV.FDMO.HHZ. 2023-12-02T15:05:46.27 0.1 undecidable manual P 359 26.8509 50 -0.11 98
IV.MMO1.EHZ. 2023-12-02T15:05:45.60 0.1 undecidable manual P 58 22.2555 114 0.03 100
IT.MTCL.HGZ. 2023-12-02T15:05:45.74 0.1 undecidable manual P 341 23.3544 113 -0.04 100
IV.LNSS.HHZ. 2023-12-02T15:05:45.54 0.1 undecidable manual P 191 21.6672 115 0.07 99
IV.NRCA.HHZ. 2023-12-02T15:05:44.55 0.3 undecidable manual S 22 4.6953 155 0.05 77
IV.NRCA.HHZ. 2023-12-02T15:05:43.20 0.1 undecidable manual P 22 4.6953 155 0.31 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNN. ML:2.8 0.0105 0.1 AML other m 2023-12-02T15:05:44.68
IV.NRCA.HHN. ML:2.8 0.01175 0.1 AML other m 2023-12-02T15:05:44.68
IV.NRCA.HHE. ML:2.5 0.005494999999999999 0.18 AML other m 2023-12-02T15:05:44.68
IV.NRCA.HNE. ML:2.5 0.005535 0.18 AML other m 2023-12-02T15:05:44.68
IV.MMO1.EHN. ML:2.2 0.0010215 1.36 AML other m 2023-12-02T15:05:49.23
IV.LNSS.HHE. ML:2.3 0.0014100000000000002 0.18 AML other m 2023-12-02T15:05:49.56
IV.LNSS.HNE. ML:2.3 0.001335 0.18 AML other m 2023-12-02T15:05:49.48
IV.MMO1.EHE. ML:2.1 0.0008545 0.4 AML other m 2023-12-02T15:05:50.47
IV.LNSS.HNN. ML:2.2 0.0012105 0.66 AML other m 2023-12-02T15:05:50.61
IV.LNSS.HHN. ML:2.3 0.0014449999999999999 0.64 AML other m 2023-12-02T15:05:50.60
IV.FDMO.HHN. ML:2.0 0.000616 0.26 AML other m 2023-12-02T15:05:50.45
IV.FDMO.HHE. ML:2.0 0.000535 0.22 AML other m 2023-12-02T15:05:50.58
IV.MTRA.HNN. ML:2.1 0.000751 0.16 AML other m 2023-12-02T15:05:50.71
IV.MTRA.EHN. ML:2.1 0.0007470000000000002 0.14 AML other m 2023-12-02T15:05:50.79
IV.MTRA.HNE. ML:2.2 0.000947 0.16 AML other m 2023-12-02T15:05:50.81
IV.CESI.HHN. ML:2.1 0.0006985 0.28 AML other m 2023-12-02T15:05:50.92
IV.SMA1.EHN. ML:2.1 0.000665 0.22 AML other m 2023-12-02T15:05:51.41
IV.MTRA.EHE. ML:2.2 0.0009690000000000001 0.58 AML other m 2023-12-02T15:05:51.45
IV.CESI.HHE. ML:2.0 0.0005015000000000001 1.04 AML other m 2023-12-02T15:05:52.77
IV.SMA1.EHE. ML:2.2 0.000945 0.78 AML other m 2023-12-02T15:05:52.15
IV.CSP1.EHE. ML:2.6 0.001585 0.52 AML other m 2023-12-02T15:05:53.07
IV.ARRO.EHE. ML:1.8 0.0002306 0.5 AML other m 2023-12-02T15:05:54.02
IV.CSP1.EHN. ML:2.6 0.001635 0.38 AML other m 2023-12-02T15:05:54.43
IV.ARRO.EHN. ML:1.7 0.00020150000000000002 0.5 AML other m 2023-12-02T15:05:56.27
IV.ASSB.HHN. ML:1.9 0.00021799999999999999 0.12 AML other m 2023-12-02T15:05:57.28
IV.ASSB.HHE. ML:2.0 0.00029295 0.26 AML other m 2023-12-02T15:05:57.42
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
Waveforms Seismic signals in miniseed + resp format Download