Earthquake with magnitude of ML 1.1 on date 11-01-2023 and time 03:20:24 (UTC) in region 4 km SW Leonessa (RI)

A magnitude ML 1.1 earthquake occured in region: 4 km SW Leonessa (RI), on

  • 11-01-2023 03:20:24 (UTC)
  • 11-01-2023 04:20:24 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.5300, 12.9330 at 12 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
Leonessa RI 5 2435 2435
Poggio Bustone RI 5 2055 4490
Rivodutri RI 7 1253 5743
Cantalice RI 7 2755 8498
Morro Reatino RI 8 373 8871
Polino TR 10 233 9104
Labro RI 11 374 9478
Colli sul Velino RI 13 533 10011
Micigliano RI 13 127 10138
Posta RI 14 694 10832
Monteleone di Spoleto PG 14 599 11431
Arrone TR 15 2763 14194
Rieti RI 15 47698 61892
Ferentillo TR 16 1913 63805
Montefranco TR 16 1276 65081
Greccio RI 16 1558 66639
Cittaducale RI 16 6828 73467
Borbona RI 17 617 74084
Castel Sant'Angelo RI 17 1308 75392
Borgo Velino RI 17 972 76364
Antrodoco RI 17 2588 78952
Contigliano RI 19 3783 82735

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km E of Terni (111501 inhabitants)
43 Km W of L'Aquila (69753 inhabitants)
51 Km SE of Foligno (57155 inhabitants)
61 Km N of Guidonia Montecelio (88673 inhabitants)
64 Km N of Tivoli (56533 inhabitants)
65 Km W of Teramo (54892 inhabitants)
69 Km E of Viterbo (67173 inhabitants)
78 Km SE of Perugia (166134 inhabitants)
80 Km NE of Roma (2864731 inhabitants)
95 Km N of Velletri (53303 inhabitants)
100 Km W of Montesilvano (53738 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 2023-01-11
03:20:24
42.5297 12.933 12 2023-01-11
03:28:15
Sala Sismica INGV-Roma 113464341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-11 03:20:24 ± 0.04
Latitude 42.5297 ± 0.0036
Longitude 12.9330 ± 0.0037
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 113464341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 313
Semi-minor axis of confidence ellipse (meter) 218
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 188
Circular confidence region, given by single value of horizontal uncertainty (meter) 310.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 135
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.10792
Epicentral distance of station farthest from the epicenter (degree) 0.33185
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 113464341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-01-11 03:28:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FIAM.HHZ. 2023-01-11T03:20:35.20 0.3 undecidable manual S 152 32.745 93 -0.17 94
IV.CESX.HHZ. 2023-01-11T03:20:34.53 0.3 undecidable manual S 287 29.6481 93 -0.01 96
IV.RM33.EHZ. 2023-01-11T03:20:32.92 0.3 undecidable manual S 96 23.1546 95 0.1 96
IV.NRCA.HHZ. 2023-01-11T03:20:31.14 0.3 undecidable manual P 24 36.8298 92 -0.13 94
IV.GAVE.EHZ. 2023-01-11T03:20:31.37 0.3 undecidable manual S 350 18.2706 100 -0.17 96
IV.FIAM.HHZ. 2023-01-11T03:20:30.60 0.3 undecidable manual P 152 32.745 93 -0.04 97
IV.ARRO.EHZ. 2023-01-11T03:20:30.50 0.3 undecidable manual S 292 14.7741 108 -0.12 97
IV.CESX.HHZ. 2023-01-11T03:20:30.31 0.3 undecidable manual P 287 29.6481 93 0.15 95
IV.LNSS.HHZ. 2023-01-11T03:20:29.85 0.3 undecidable manual S 47 11.9769 118 -0.08 100
IV.RM33.EHZ. 2023-01-11T03:20:29.17 0.3 undecidable manual P 96 23.1546 95 0 98
IV.ARRO.EHZ. 2023-01-11T03:20:28.01 0.3 undecidable manual P 292 14.7741 108 0.12 98
IV.GAVE.EHZ. 2023-01-11T03:20:28.48 0.3 undecidable manual P 350 18.2706 100 0.05 99
IV.LNSS.HHZ. 2023-01-11T03:20:27.63 0.3 undecidable manual P 47 11.9769 118 0.13 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHE. ML:1.4 0.00022849999999999997 0.1 AML other m 2023-01-11T03:20:30.09
IV.LNSS.HHN. ML:1.4 0.0002475 0.3 AML other m 2023-01-11T03:20:30.33
IV.ARRO.EHE. ML:1.0 0.0000932 0.18 AML other m 2023-01-11T03:20:30.61
IV.ARRO.EHN. ML:1.0 0.0000802 0.42 AML other m 2023-01-11T03:20:31.98
IV.GAVE.EHE. ML:1.3 0.000152 0.24 AML other m 2023-01-11T03:20:31.69
IV.GAVE.EHN. ML:1.4 0.000185 0.38 AML other m 2023-01-11T03:20:31.85
IV.RM33.EHE. ML:0.8 0.0000424750855 0.16 AML other m 2023-01-11T03:20:33.25
IV.RM33.EHN. ML:0.8 0.000039543839999999995 0.1008 AML other m 2023-01-11T03:20:33.44
IV.CESX.HHE. ML:0.6 0.000022231712000000002 0 AML other m 2023-01-11T03:20:34.83
IV.CESX.HHN. ML:0.8 0.00002774638 0.4016 AML other m 2023-01-11T03:20:34.84
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