Earthquake with magnitude of ML 1.1 on date 11-01-2024 and time 10:18:38 (Italy) in region 3 km SW Norcia (PG)

A magnitude ML 1.1 earthquake occured in region: 3 km SW Norcia (PG), on

  • 11-01-2024 09:18:38 (UTC)
  • 11-01-2024 10:18:38 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7710, 13.0690 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.

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 7 3217 8174
Preci PG 12 724 8898
Poggiodomo PG 13 117 9015
Cerreto di Spoleto PG 14 1075 10090
Castelsantangelo sul Nera MC 16 281 10371
Monteleone di Spoleto PG 16 599 10970
Vallo di Nera PG 17 364 11334
Accumoli RI 17 667 12001
Sellano PG 18 1079 13080
Visso MC 18 1107 14187
Cittareale RI 19 482 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)
42 Km NE of Terni (111501 inhabitants)
53 Km W of Teramo (54892 inhabitants)
54 Km NW of L'Aquila (69753 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 1.1 2024-01-11
09:18:38
42.7712 13.069 10 2024-01-11
09:56:34
Sala Sismica INGV-Roma 124578101
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-01-11 09:18:38 ± 0.06
Latitude 42.7712 ± 0.0018
Longitude 13.0690 ± 0.0074
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 124578101

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 622
Semi-minor axis of confidence ellipse (meter) 43
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 272
Circular confidence region, given by single value of horizontal uncertainty (meter) 620.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 176
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
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) 0.07105
Epicentral distance of station farthest from the epicenter (degree) 0.33545
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 124578101
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-01-11 09:56:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SMA1.EHZ. 2024-01-11T09:18:48.06 0.3 undecidable manual S 126 26.751 50 0.03 74
IV.FDMO.HHZ. 2024-01-11T09:18:48.64 0.6 undecidable manual S 3 29.4483 50 -0.12 48
IV.LNSS.HHZ. 2024-01-11T09:18:45.48 0.3 undecidable manual S 187 18.7701 118 -0.07 74
IV.CSP1.EHZ. 2024-01-11T09:18:45.69 1.0 negative manual P 17 37.2294 50 0.21 23
IV.FDMO.HHZ. 2024-01-11T09:18:44.28 0.1 undecidable manual P 3 29.4483 50 -0.01 99
IV.SMA1.EHZ. 2024-01-11T09:18:43.82 0.1 undecidable manual P 126 26.751 50 -0.05 98
IV.NRCA.HHZ. 2024-01-11T09:18:42.44 0.1 undecidable manual S 28 7.881 142 -0.12 100
IV.LNSS.HHZ. 2024-01-11T09:18:42.47 0.1 undecidable manual P 187 18.7701 118 0.03 100
IV.NRCA.HHZ. 2024-01-11T09:18:40.89 0.1 positive manual P 28 7.881 142 0.19 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.2 0.0002105 0.16 AML other m 2024-01-11T09:18:42.53
IV.NRCA.HHE. ML:1.1 0.00018063815 0.1792 AML other m 2024-01-11T09:18:43.80
IV.LNSS.HHN. ML:1.0 0.00008335 1.84 AML other m 2024-01-11T09:18:45.07
IV.LNSS.HHE. ML:1.0 0.00007425589 0.1408 AML other m 2024-01-11T09:18:46.27
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download