Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 11-08-2024 and time 14:53:07 (UTC) in region 3 km S Norcia (PG)

A magnitude ML 1.2 earthquake occured in region: 3 km S Norcia (PG), on

  • 11-08-2024 14:53:07 (UTC)
  • 11-08-2024 16:53:07 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7650, 13.0830 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 3 4957 4957
Cascia PG 8 3217 8174
Preci PG 13 724 8898
Poggiodomo PG 13 117 9015
Cerreto di Spoleto PG 15 1075 10090
Accumoli RI 16 667 10757
Castelsantangelo sul Nera MC 16 281 11038
Monteleone di Spoleto PG 17 599 11637
Cittareale RI 17 482 12119
Arquata del Tronto AP 18 1178 13297
Vallo di Nera PG 18 364 13661
Visso MC 19 1107 14768
Sellano PG 19 1079 15847

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km SE of Foligno (57155 inhabitants)
42 Km NE of Terni (111501 inhabitants)
52 Km W of Teramo (54892 inhabitants)
53 Km NW of L'Aquila (69753 inhabitants)
68 Km SE of Perugia (166134 inhabitants)
89 Km E of Viterbo (67173 inhabitants)
90 Km NE of Guidonia Montecelio (88673 inhabitants)
92 Km W of Montesilvano (53738 inhabitants)
92 Km N of Tivoli (56533 inhabitants)
98 Km W of Pescara (121014 inhabitants)
100 Km W 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 1.2 2024-08-11
14:53:07		 42.7647 13.0833 10 2024-08-11
15:02:09		 Sala Sismica INGV-Roma 130587861
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-08-11 14:53:07 ± 0.06
Latitude 42.7647 ± 0.0027
Longitude 13.0833 ± 0.0073
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 130587861

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 552
Semi-minor axis of confidence ellipse (meter) 165
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 87
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) 121
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 18
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) 0.50092
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 130587861
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-08-11 15:02:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SACS.HHZ. 2024-08-11T14:53:26.26 3.0 undecidable manual P 3.98 0
IV.RM33.EHZ. 2024-08-11T14:53:17.92 0.3 undecidable manual S 159 30.3474 50 -0.13 71
IV.SMA1.EHZ. 2024-08-11T14:53:17.08 0.3 undecidable manual S 126 25.3524 50 0.35 69
IV.SNTG.HHZ. 2024-08-11T14:53:17.46 0.1 undecidable manual P 348 55.5999 50 0.05 94
IV.ASSB.HHZ. 2024-08-11T14:53:16.01 0.6 undecidable manual P 312 46.3203 50 0.04 48
IV.TERO.HHZ. 2024-08-11T14:53:15.69 0.6 negative manual P 110 45.2214 50 -0.12 46
IV.MML1.EHZ. 2024-08-11T14:53:15.04 0.6 undecidable manual P 347 39.7269 50 0.07 48
7F.SIB2.EHN. 2024-08-11T14:53:15.59 0.3 undecidable manual S 52 22.755 114 -0.38 70
IV.CSP1.EHZ. 2024-08-11T14:53:14.71 0.1 undecidable manual P 15 37.629 50 0.08 97
IV.LNSS.HHZ. 2024-08-11T14:53:14.54 0.3 undecidable manual S 191 18.2706 119 -0.04 75
IV.MC2.EHE. 2024-08-11T14:53:14.87 0.3 undecidable manual S 28 18.3705 119 0.26 71
IV.RM33.EHZ. 2024-08-11T14:53:13.35 0.3 positive manual P 159 30.3474 50 -0.16 71
IV.FDMO.HHZ. 2024-08-11T14:53:13.44 0.1 positive manual P 1 30.1476 50 -0.05 96
IV.SMA1.EHZ. 2024-08-11T14:53:12.95 0.3 positive manual P 126 25.3524 50 0.2 71
7F.SIB2.EHN. 2024-08-11T14:53:12.19 0.6 undecidable manual P 52 22.755 114 -0.12 49
IV.MC2.EHE. 2024-08-11T14:53:11.76 0.1 undecidable manual P 28 18.3705 119 0.24 95
IV.NRCA.HHZ. 2024-08-11T14:53:11.54 0.1 undecidable manual S 18 8.0808 142 -0.28 98
IV.LNSS.HHZ. 2024-08-11T14:53:11.46 0.6 undecidable manual P 191 18.2706 119 -0.04 50
IV.NRCA.HHZ. 2024-08-11T14:53:09.98 0.1 undecidable manual P 18 8.0808 142 0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.8 0.0010305 0.16 AML other m 2024-08-11T14:53:11.59
IV.NRCA.HHE. ML:1.9 0.0010875 0.12 AML other m 2024-08-11T14:53:11.68
IV.LNSS.HHE. ML:1.6 0.000286 0.12 AML other m 2024-08-11T14:53:14.72
IV.LNSS.HHN. ML:1.6 0.0002855 0.76 AML other m 2024-08-11T14:53:14.99
IV.SMA1.EHN. ML:1.1 0.00007615 1.36 AML other m 2024-08-11T14:53:18.92
IV.ATCC.EHN. ML:1.2 0.000031549999999999994 0.54 AML other m 2024-08-11T14:53:18.41
IV.FDMO.HHN. ML:1.2 0.00006765 0.34 AML other m 2024-08-11T14:53:18.48
IV.SMA1.EHE. ML:1.3 0.0001215 0.6 AML other m 2024-08-11T14:53:18.19
IV.RM33.EHN. ML:1.1 0.000057 0.46 AML other m 2024-08-11T14:53:18.40
IV.FDMO.HHE. ML:1.1 0.000057900000000000005 0.3 AML other m 2024-08-11T14:53:18.80
IV.RM33.EHE. ML:0.9 0.000041800000000000006 0.14 AML other m 2024-08-11T14:53:18.84
IV.CSP1.EHE. ML:1.5 0.00011829999999999999 1.7 AML other m 2024-08-11T14:53:21.95
IV.CSP1.EHN. ML:1.5 0.00010954999999999999 0.34 AML other m 2024-08-11T14:53:21.82
IV.TERO.HHN. ML:1.3 0.0000576 0.1 AML other m 2024-08-11T14:53:22.36
IV.MML1.EHE. ML:0.9 0.0000256 1.02 AML other m 2024-08-11T14:53:22.69
IV.MML1.EHN. ML:0.9 0.000029350000000000002 1.36 AML other m 2024-08-11T14:53:22.94
IV.TERO.HHE. ML:1.1 0.0000369 0.7 AML other m 2024-08-11T14:53:23.57
IV.ASSB.HHE. ML:1.1 0.0000329 0.24 AML other m 2024-08-11T14:53:23.50
IV.ASSB.HHN. ML:1.1 0.00003845 1.84 AML other m 2024-08-11T14:53:25.96
IV.SNTG.HHN. ML:0.8 0.000013999999999999998 0.14 AML other m 2024-08-11T14:53:26.90
IV.SNTG.HHE. ML:0.8 0.0000141 0.4 AML other m 2024-08-11T14:53:27.31
IV.MURB.HHN. ML:1.4 0.0000401 0.56 AML other m 2024-08-11T14:53:32.32
IV.MURB.HHE. ML:1.5 0.00005035 0.2 AML other m 2024-08-11T14:53:33.18
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