Earthquake with magnitude of ML 1.3 on date 18-11-2021 and time 05:24:23 (UTC) in region 4 km S Leonessa (RI)

A magnitude ML 1.3 earthquake occured in region: 4 km S Leonessa (RI), on

  • 18-11-2021 05:24:23 (UTC)
  • 18-11-2021 06:24:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.5320, 12.9770 at 14 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 4 2435 2435
Poggio Bustone RI 8 2055 4490
Cantalice RI 9 2755 7245
Posta RI 10 694 7939
Rivodutri RI 10 1253 9192
Micigliano RI 11 127 9319
Morro Reatino RI 12 373 9692
Polino TR 12 233 9925
Borbona RI 13 617 10542
Monteleone di Spoleto PG 14 599 11141
Labro RI 14 374 11515
Antrodoco RI 15 2588 14103
Borgo Velino RI 16 972 15075
Castel Sant'Angelo RI 16 1308 16383
Cittaducale RI 16 6828 23211
Colli sul Velino RI 16 533 23744
Rieti RI 17 47698 71442
Cittareale RI 18 482 71924
Arrone TR 18 2763 74687
Ferentillo TR 18 1913 76600
Montefranco TR 19 1276 77876
Greccio RI 19 1558 79434

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km E of Terni (111501 inhabitants)
40 Km NW of L'Aquila (69753 inhabitants)
52 Km SE of Foligno (57155 inhabitants)
61 Km W of Teramo (54892 inhabitants)
62 Km NE of Guidonia Montecelio (88673 inhabitants)
65 Km N of Tivoli (56533 inhabitants)
73 Km E of Viterbo (67173 inhabitants)
80 Km SE of Perugia (166134 inhabitants)
82 Km NE of Roma (2864731 inhabitants)
95 Km N of Velletri (53303 inhabitants)
96 Km W of Montesilvano (53738 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 1.3 2021-11-18
05:24:23
42.5315 12.9767 14 2021-11-18
05:31:36
Sala Sismica INGV-Roma 97542191
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-18 05:24:23 ± 0.1
Latitude 42.5315 ± 0.0072
Longitude 12.9767 ± 0.0073
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97542191

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 744
Semi-minor axis of confidence ellipse (meter) 392
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 209
Circular confidence region, given by single value of horizontal uncertainty (meter) 740.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 129
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.08544
Epicentral distance of station farthest from the epicenter (degree) 0.40380
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 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 97542191
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-18 05:31:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MOMA.HHZ. 2021-11-18T05:24:38.42 0.1 undecidable manual S 312 44.8218 96 0.04 98
IV.NRCA.HHZ. 2021-11-18T05:24:35.57 0.3 undecidable manual S 18 35.3424 98 -0.28 69
IV.FIAM.HHZ. 2021-11-18T05:24:34.34 0.1 undecidable manual S 158 31.4463 100 -0.48 92
IV.SMA1.EHZ. 2021-11-18T05:24:34.98 0.1 undecidable manual S 69 31.2465 100 0.2 97
IV.MOMA.HHZ. 2021-11-18T05:24:32.65 0.1 undecidable manual P 312 44.8218 96 0.39 90
IV.GAVE.EHZ. 2021-11-18T05:24:31.38 0.1 undecidable manual S 339 19.0698 112 -0.25 96
IV.ARRO.EHZ. 2021-11-18T05:24:31.23 0.1 undecidable manual S 287 18.0708 114 -0.14 100
IV.RM33.EHZ. 2021-11-18T05:24:31.62 0.1 undecidable manual S 97 19.5693 111 -0.15 99
IV.SMA1.EHZ. 2021-11-18T05:24:30.24 0.1 undecidable manual P 69 31.2465 100 0.05 100
IV.FIAM.HHZ. 2021-11-18T05:24:30.13 1.0 undecidable manual P 158 31.4463 100 -0.08 25
IV.NRCA.HHZ. 2021-11-18T05:24:30.68 0.1 undecidable manual P 18 35.3424 98 -0.12 96
IV.LNSS.HHZ. 2021-11-18T05:24:29.33 0.1 undecidable manual S 33 9.4794 138 -0.18 100
IV.ARRO.EHZ. 2021-11-18T05:24:28.49 0.1 undecidable manual P 287 18.0708 114 0.27 97
IV.RM33.EHZ. 2021-11-18T05:24:28.63 0.1 undecidable manual P 97 19.5693 111 0.19 98
IV.GAVE.EHZ. 2021-11-18T05:24:28.52 0.1 undecidable manual P 339 19.0698 112 0.16 100
IV.LNSS.HHZ. 2021-11-18T05:24:27.38 0.1 undecidable manual P 33 9.4794 138 0.24 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHE. ML:1.5 0.0003165 0.74 AML other m 2021-11-18T05:24:29.45
IV.LNSS.HHN. ML:1.4 0.00025 1.56 AML other m 2021-11-18T05:24:29.91
IV.GAVE.EHN. ML:1.2 0.00010655 0.64 AML other m 2021-11-18T05:24:32.58
IV.GAVE.EHE. ML:1.2 0.00009850000000000001 1.2 AML other m 2021-11-18T05:24:33.95
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