Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 11-01-2024 and time 09:52:32 (Italy) in region 4 km SW Norcia (PG)

A magnitude ML 1.3 earthquake occured in region: 4 km SW Norcia (PG), on

  • 11-01-2024 08:52:32 (UTC)
  • 11-01-2024 09:52:32 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7660, 13.0660 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 4 4957 4957
Cascia PG 7 3217 8174
Poggiodomo PG 12 117 8291
Preci PG 13 724 9015
Cerreto di Spoleto PG 14 1075 10090
Monteleone di Spoleto PG 16 599 10689
Castelsantangelo sul Nera MC 16 281 10970
Vallo di Nera PG 17 364 11334
Accumoli RI 17 667 12001
Sellano PG 18 1079 13080
Cittareale RI 18 482 13562
Visso MC 19 1107 14669
Arquata del Tronto AP 19 1178 15847
Sant'Anatolia di Narco PG 19 564 16411

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km SE of Foligno (57155 inhabitants)
41 Km NE of Terni (111501 inhabitants)
54 Km NW of L'Aquila (69753 inhabitants)
54 Km W of Teramo (54892 inhabitants)
67 Km SE of Perugia (166134 inhabitants)
88 Km E of Viterbo (67173 inhabitants)
90 Km NE of Guidonia Montecelio (88673 inhabitants)
92 Km N of Tivoli (56533 inhabitants)
93 Km W of Montesilvano (53738 inhabitants)
100 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 1.3 2024-01-11
08:52:32		 42.7662 13.066 10 2024-01-11
09:25:25		 Sala Sismica INGV-Roma 124576931
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-01-11 08:52:32
Latitude 42.7662
Longitude 13.0660
Depth (km) 10 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 124576931

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 450.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 147
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
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) 0.07644
Epicentral distance of station farthest from the epicenter (degree) 0.42178
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 124576931
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-01-11 09:25:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CESI.HHZ. 2024-01-11T08:52:43.42 0.6 undecidable manual S 334 29.5482 -0.19 0.7
IV.SMA1.EHZ. 2024-01-11T08:52:42.85 0.6 undecidable manual S 124 26.6511 0.04 0.7
IV.TERO.HHZ. 2024-01-11T08:52:41.28 1.0 undecidable manual P 109 46.8198 -0.21 0.35
7F.SIB1.EHZ. 2024-01-11T08:52:41.25 0.6 undecidable manual S 49 21.9669 -0.07 0.7
IV.MC2.EHZ. 2024-01-11T08:52:40.36 0.6 undecidable manual S 31 18.9699 -0.01 0.7
IV.LNSS.HHZ. 2024-01-11T08:52:39.94 0.3 undecidable manual S 187 18.2706 -0.18 1.05
IV.CESI.HHZ. 2024-01-11T08:52:38.84 0.1 undecidable manual P 334 29.5482 0 1.4
IV.FDMO.HHZ. 2024-01-11T08:52:38.84 0.6 undecidable manual P 3 30.0477 -0.07 0.7
IV.SMA1.EHZ. 2024-01-11T08:52:38.39 0.1 undecidable manual P 124 26.6511 0 1.4
IV.NRCA.HHZ. 2024-01-11T08:52:37.03 0.6 undecidable manual S 27 8.4804 -0.35 0.7
IV.LNSS.HHZ. 2024-01-11T08:52:37.00 0.1 undecidable manual P 187 18.2706 0.12 1.4
7F.SIB1.EHZ. 2024-01-11T08:52:37.45 0.1 undecidable manual P 49 21.9669 -0.1 1.4
IV.MC2.EHZ. 2024-01-11T08:52:37.16 0.1 undecidable manual P 31 18.9699 0.14 1.4
IV.NRCA.HHZ. 2024-01-11T08:52:35.47 0.1 undecidable manual P 27 8.4804 0.13 1.4
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.3 0.000262 0.16 AML other m 2024-01-11T08:52:37.14
IV.NRCA.HHE. ML:1.4 0.00032700000000000003 0.1 AML other m 2024-01-11T08:52:37.20
IV.LNSS.HHN. ML:1.2 0.00011549999999999999 0.3 AML other m 2024-01-11T08:52:40.36
IV.LNSS.HHE. ML:1.3 0.00015450000000000001 0.96 AML other m 2024-01-11T08:52:40.62
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