Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 09-07-2024 and time 20:05:32 (UTC) in region 4 km NW Norcia (PG)

A magnitude ML 1.1 earthquake occured in region: 4 km NW Norcia (PG), on

  • 09-07-2024 20:05:32 (UTC)
  • 09-07-2024 22:05:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8270, 13.0680 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
Preci PG 6 724 5681
Castelsantangelo sul Nera MC 10 281 5962
Visso MC 12 1107 7069
Cerreto di Spoleto PG 12 1075 8144
Cascia PG 13 3217 11361
Sellano PG 13 1079 12440
Ussita MC 14 444 12884
Poggiodomo PG 17 117 13001
Vallo di Nera PG 18 364 13365
Monte Cavallo MC 19 145 13510
Arquata del Tronto AP 20 1178 14688

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of Foligno (57155 inhabitants)
45 Km NE of Terni (111501 inhabitants)
55 Km W of Teramo (54892 inhabitants)
59 Km NW of L'Aquila (69753 inhabitants)
63 Km E of Perugia (166134 inhabitants)
91 Km NE of Viterbo (67173 inhabitants)
95 Km W of Montesilvano (53738 inhabitants)
95 Km SW of Ancona (100861 inhabitants)
96 Km N of Guidonia Montecelio (88673 inhabitants)
98 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
Reviewed
Rev100 		ML 1.1 2024-07-09
20:05:32		 42.8267 13.0677 10 2024-07-09
20:12:59		 Sala Sismica INGV-Roma 129672271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-07-09 20:05:32 ± 0.05
Latitude 42.8267 ± 0.0027
Longitude 13.0677 ± 0.0061
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 129672271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 440
Semi-minor axis of confidence ellipse (meter) 82
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 271
Circular confidence region, given by single value of horizontal uncertainty (meter) 440.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 103
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 22
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) 0.33545
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 129672271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-07-09 20:12:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSNT.HHZ. 2024-07-09T20:06:19.76 3.0 undecidable manual S 2.26 0
IV.ARVD.HHZ. 2024-07-09T20:05:56.51 3.0 undecidable manual S -0.04 0
IV.GIUL.HHZ. 2024-07-09T20:05:54.13 3.0 positive manual P -0.72 0
IV.CRE.HHZ. 2024-07-09T20:05:53.28 3.0 undecidable manual P 0.08 0
IV.CING.HHZ. 2024-07-09T20:05:52.21 3.0 undecidable manual S -0.22 0
IV.ARRO.EHZ. 2024-07-09T20:05:45.17 0.6 undecidable manual S 222 36.8298 50 0.29 46
IV.GUMA.HHZ. 2024-07-09T20:05:44.60 0.3 undecidable manual S 40 34.0437 50 0.48 67
IV.RM33.EHZ. 2024-07-09T20:05:44.78 0.6 undecidable manual S 161 37.2294 50 -0.19 47
IV.SMA1.EHZ. 2024-07-09T20:05:43.09 0.3 undecidable manual S 135 30.8469 50 -0.17 72
IV.CSP1.EHZ. 2024-07-09T20:05:43.35 0.3 undecidable manual S 21 31.4463 50 -0.08 73
IV.CING.HHZ. 2024-07-09T20:05:43.73 3.0 positive manual P 0.25 0
IV.MML1.EHZ. 2024-07-09T20:05:43.69 0.6 undecidable manual S 346 32.745 50 -0.1 49
IV.CESI.HHZ. 2024-07-09T20:05:41.22 0.3 undecidable manual S 326 23.754 113 -0.09 74
IV.SNTG.HHZ. 2024-07-09T20:05:41.51 3.0 undecidable manual P 0.09 0
IV.MOMA.HHZ. 2024-07-09T20:05:41.37 3.0 undecidable manual P 1.07 0
IV.LNSS.HHZ. 2024-07-09T20:05:41.50 0.6 undecidable manual S 185 24.9528 112 -0.18 48
IV.TERO.HHZ. 2024-07-09T20:05:41.21 3.0 undecidable manual P 0.08 0
IV.ASSB.HHZ. 2024-07-09T20:05:40.10 3.0 undecidable manual P -0.23 0
IV.GAVE.EHZ. 2024-07-09T20:05:40.27 0.6 undecidable manual S 223 20.5683 116 -0.01 51
IV.FDMO.HHZ. 2024-07-09T20:05:40.79 0.3 undecidable manual S 4 23.3544 113 -0.38 70
IV.ARRO.EHZ. 2024-07-09T20:05:39.80 1.0 positive manual P 222 36.8298 50 0.21 24
IV.GUMA.HHZ. 2024-07-09T20:05:39.43 0.6 positive manual P 40 34.0437 50 0.28 47
IV.RM33.EHZ. 2024-07-09T20:05:39.44 1.0 positive manual P 161 37.2294 50 -0.2 24
IV.CSP1.EHZ. 2024-07-09T20:05:38.73 1.0 positive manual P 21 31.4463 50 -0.03 25
IV.MML1.EHZ. 2024-07-09T20:05:38.85 0.1 undecidable manual P 346 32.745 50 -0.1 97
IV.SMA1.EHZ. 2024-07-09T20:05:38.53 0.1 undecidable manual P 135 30.8469 50 -0.12 97
IV.FDMO.HHZ. 2024-07-09T20:05:37.39 0.3 negative manual P 4 23.3544 113 -0.05 75
IV.LNSS.HHZ. 2024-07-09T20:05:37.60 0.1 undecidable manual P 185 24.9528 112 -0.13 98
IV.CESI.HHZ. 2024-07-09T20:05:37.56 0.1 negative manual P 326 23.754 113 0.04 100
IV.GAVE.EHZ. 2024-07-09T20:05:37.23 0.3 negative manual P 223 20.5683 116 0.29 72
IV.NRCA.HHZ. 2024-07-09T20:05:36.15 0.3 undecidable manual S 79 3.8961 159 0.06 77
IV.NRCA.HHZ. 2024-07-09T20:05:34.78 0.1 undecidable manual P 79 3.8961 159 0.27 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHE. ML:1.3 0.0001545 0.32 AML other m 2024-07-09T20:05:40.88
IV.FDMO.HHN. ML:1.4 0.000161 0.88 AML other m 2024-07-09T20:05:41.56
IV.GAVE.EHN. ML:1.3 0.000134 1.2 AML other m 2024-07-09T20:05:41.74
IV.FDMO.HHE. ML:1.4 0.00017199999999999998 0.14 AML other m 2024-07-09T20:05:41.46
IV.LNSS.HHE. ML:1.6 0.00021799999999999999 0.12 AML other m 2024-07-09T20:05:41.72
IV.CESI.HHN. ML:1.3 0.000127 0.38 AML other m 2024-07-09T20:05:41.67
IV.CESI.HHE. ML:1.1 0.000087 0.22 AML other m 2024-07-09T20:05:41.64
IV.LNSS.HHN. ML:1.3 0.000131 0.3 AML other m 2024-07-09T20:05:42.06
IV.CSP1.EHE. ML:1.6 0.000195 0.94 AML other m 2024-07-09T20:05:43.76
IV.MML1.EHE. ML:1.0 0.00003945 0.56 AML other m 2024-07-09T20:05:44.58
IV.CSP1.EHN. ML:1.6 0.0001915 0.42 AML other m 2024-07-09T20:05:45.02
IV.MML1.EHN. ML:0.8 0.0000318 1.1 AML other m 2024-07-09T20:05:45.13
IV.SMA1.EHE. ML:1.1 0.0000576 0.2 AML other m 2024-07-09T20:05:45.22
IV.RM33.EHN. ML:0.9 0.000028949999999999996 0.84 AML other m 2024-07-09T20:05:46.09
IV.RM33.EHE. ML:0.9 0.000028999999999999997 0.34 AML other m 2024-07-09T20:05:46.10
IV.ARRO.EHN. ML:0.7 0.000020900000000000003 0.16 AML other m 2024-07-09T20:05:46.33
IV.ARRO.EHE. ML:0.8 0.00002395 0.72 AML other m 2024-07-09T20:05:46.88
IV.SMA1.EHN. ML:1.0 0.000045700000000000006 0.82 AML other m 2024-07-09T20:05:46.70
IV.MOMA.HHE. ML:1.0 0.0000307 1.36 AML other m 2024-07-09T20:05:47.00
IV.MOMA.HHN. ML:1.0 0.00003485 1.86 AML other m 2024-07-09T20:05:48.97
IV.SNTG.HHN. ML:0.7 0.000013135 1.4 AML other m 2024-07-09T20:05:49.20
IV.SNTG.HHE. ML:0.9 0.00001865 1.2 AML other m 2024-07-09T20:05:50.64
IV.CING.HHN. ML:0.9 0.0000155 0.86 AML other m 2024-07-09T20:05:52.46
IV.CING.HHE. ML:1.0 0.000018849999999999997 0.76 AML other m 2024-07-09T20:05:53.62
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