Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 01-12-2022 and time 23:38:29 (UTC) in region 2 km NE Norcia (PG)

A magnitude ML 1.3 earthquake occured in region: 2 km NE Norcia (PG), on

  • 01-12-2022 23:38:29 (UTC)
  • 02-12-2022 00:38:29 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8040, 13.1180 at 9 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 2 4957 4957
Castelsantangelo sul Nera MC 11 281 5238
Preci PG 11 724 5962
Cascia PG 13 3217 9179
Visso MC 14 1107 10286
Arquata del Tronto AP 15 1178 11464
Ussita MC 16 444 11908
Accumoli RI 16 667 12575
Cerreto di Spoleto PG 17 1075 13650
Poggiodomo PG 18 117 13767
Montegallo AP 18 523 14290
Sellano PG 18 1079 15369

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
51 Km W of Teramo (54892 inhabitants)
55 Km NW of L'Aquila (69753 inhabitants)
68 Km SE of Perugia (166134 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
93 Km E of Viterbo (67173 inhabitants)
95 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km SW of Ancona (100861 inhabitants)
97 Km N of Tivoli (56533 inhabitants)
97 Km W of Pescara (121014 inhabitants)
100 Km NW of Chieti (51815 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 1.3 2022-12-01
23:38:29		 42.8043 13.1182 9 2022-12-01
23:42:55		 Sala Sismica INGV-Roma 112424361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-12-01 23:38:29 ± 0.05
Latitude 42.8043 ± 0.0027
Longitude 13.1182 ± 0.0061
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 112424361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 457
Semi-minor axis of confidence ellipse (meter) 69
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 265
Circular confidence region, given by single value of horizontal uncertainty (meter) 460.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 109
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.02968
Epicentral distance of station farthest from the epicenter (degree) 0.52520
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 112424361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-12-01 23:42:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2022-12-01T23:38:48.32 0.3 undecidable manual S 359 58.2972 50 0.49 64
IV.GUMA.HHZ. 2022-12-01T23:38:41.77 0.6 undecidable manual S 32 33.6441 50 0.51 45
IV.MF5.EHZ. 2022-12-01T23:38:41.77 0.6 undecidable manual S 54 34.4433 50 0.3 47
IV.RM33.EHZ. 2022-12-01T23:38:41.08 0.3 undecidable manual S 166 33.744 50 -0.2 71
IV.EL6.EHZ. 2022-12-01T23:38:40.09 0.1 undecidable manual P 359 58.2972 50 0.07 94
IV.CSP1.EHZ. 2022-12-01T23:38:40.76 0.6 undecidable manual S 12 32.6451 50 -0.25 47
IV.CESI.HHZ. 2022-12-01T23:38:39.37 0.6 undecidable manual S 322 28.2495 108 -0.25 48
IV.SMA1.EHZ. 2022-12-01T23:38:38.83 0.3 undecidable manual S 137 26.1516 109 -0.12 74
IV.LNSS.HHZ. 2022-12-01T23:38:38.32 0.3 undecidable manual S 196 23.2545 111 0.33 71
IV.FDMO.HHZ. 2022-12-01T23:38:38.73 0.6 undecidable manual S 354 25.8519 109 -0.12 49
IV.TERO.HHZ. 2022-12-01T23:38:37.30 1.0 undecidable manual P 117 44.4222 50 -0.6 21
IV.ASSB.HHZ. 2022-12-01T23:38:37.85 0.1 undecidable manual P 305 45.7209 50 -0.24 92
IV.RM33.EHZ. 2022-12-01T23:38:36.25 0.1 undecidable manual P 166 33.744 50 0.01 99
IV.MMO1.EHZ. 2022-12-01T23:38:36.60 0.6 undecidable manual S 58 19.9689 114 -0.34 47
IV.GUMA.HHZ. 2022-12-01T23:38:36.19 0.1 undecidable manual P 32 33.6441 50 -0.04 98
IV.MF5.EHZ. 2022-12-01T23:38:36.35 1.0 positive manual P 54 34.4433 50 0 25
IV.CSP1.EHZ. 2022-12-01T23:38:35.79 0.6 negative manual P 12 32.6451 50 -0.29 47
IV.MC2.EHZ. 2022-12-01T23:38:35.18 0.6 undecidable manual S 26 13.1757 124 0.3 48
IV.CESI.HHZ. 2022-12-01T23:38:35.11 0.1 undecidable manual P 322 28.2495 108 -0.17 97
IV.LNSS.HHZ. 2022-12-01T23:38:34.53 0.1 undecidable manual P 196 23.2545 111 0.19 97
IV.FDMO.HHZ. 2022-12-01T23:38:34.68 0.6 positive manual P 354 25.8519 109 -0.16 49
IV.SMA1.EHZ. 2022-12-01T23:38:34.82 0.1 undecidable manual P 137 26.1516 109 -0.07 99
IV.MMO1.EHZ. 2022-12-01T23:38:33.61 0.1 positive manual P 58 19.9689 114 -0.13 99
IV.MC2.EHZ. 2022-12-01T23:38:32.76 0.3 negative manual P 26 13.1757 124 0.21 74
IV.NRCA.HHZ. 2022-12-01T23:38:32.58 0.6 undecidable manual S 355 3.2967 160 -0.07 52
IV.NRCA.HHZ. 2022-12-01T23:38:31.48 0.1 undecidable manual P 355 3.2967 160 0.22 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MC2.EHE. ML:1.5 0.000363 0.64 AML other m 2022-12-01T23:38:35.23
IV.MC2.EHN. ML:1.7 0.0005315 0.24 AML other m 2022-12-01T23:38:36.31
IV.MMO1.EHE. ML:1.4 0.0002045 0.14 AML other m 2022-12-01T23:38:36.85
IV.MMO1.EHN. ML:1.3 0.000153 0.7 AML other m 2022-12-01T23:38:37.51
IV.LNSS.HHE. ML:1.2 0.00010275 1.14 AML other m 2022-12-01T23:38:39.17
IV.CESI.HHE. ML:1.0 0.00005475000000000001 0.52 AML other m 2022-12-01T23:38:39.63
IV.LNSS.HHN. ML:1.1 0.0000871 1.42 AML other m 2022-12-01T23:38:39.94
IV.CESI.HHN. ML:1.1 0.0000585 0.76 AML other m 2022-12-01T23:38:40.78
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