Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 01-06-2023 and time 17:56:05 (UTC) in region 1 km SE Labro (RI)

A magnitude ML 1.2 earthquake occured in region: 1 km SE Labro (RI), on

  • 01-06-2023 17:56:05 (UTC)
  • 01-06-2023 19:56:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.5220, 12.8110 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
Labro RI 1 374 374
Morro Reatino RI 2 373 747
Colli sul Velino RI 4 533 1280
Rivodutri RI 4 1253 2533
Poggio Bustone RI 7 2055 4588
Arrone TR 8 2763 7351
Polino TR 8 233 7584
Greccio RI 8 1558 9142
Montefranco TR 9 1276 10418
Cantalice RI 10 2755 13173
Ferentillo TR 11 1913 15086
Stroncone TR 12 4917 20003
Contigliano RI 13 3783 23786
Leonessa RI 13 2435 26221
Rieti RI 14 47698 73919
Terni TR 14 111501 185420
Cottanello RI 16 563 185983
Configni RI 18 633 186616
Montasola RI 18 395 187011
Monteleone di Spoleto PG 19 599 187610
Cittaducale RI 19 6828 194438

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km E of Terni (111501 inhabitants)
49 Km S of Foligno (57155 inhabitants)
52 Km W of L'Aquila (69753 inhabitants)
58 Km N of Guidonia Montecelio (88673 inhabitants)
59 Km E of Viterbo (67173 inhabitants)
62 Km N of Tivoli (56533 inhabitants)
74 Km SE of Perugia (166134 inhabitants)
75 Km W of Teramo (54892 inhabitants)
75 Km NE of Roma (2864731 inhabitants)
93 Km N of Velletri (53303 inhabitants)
96 Km NE of Fiumicino (78395 inhabitants)
96 Km NE of Civitavecchia (52991 inhabitants)
98 Km N of Pomezia (62966 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 2023-06-01
17:56:05		 42.5223 12.8107 10 2023-06-01
17:59:44		 Sala Sismica INGV-Roma 117967071
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-06-01 17:56:05 ± 0.1
Latitude 42.5223 ± 0.0045
Longitude 12.8107 ± 0.0037
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 117967071

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 540
Semi-minor axis of confidence ellipse (meter) 312
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 176
Circular confidence region, given by single value of horizontal uncertainty (meter) 540.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 264
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.09
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.38311
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 117967071
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-06-01 17:59:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MML1.EHZ. 2023-06-01T17:56:25.88 3.0 undecidable manual S -0.82 0
IV.FDMO.HHZ. 2023-06-01T17:56:23.40 3.0 undecidable manual S -1.73 0
IV.NRCA.HHZ. 2023-06-01T17:56:19.42 0.1 undecidable manual S 36 42.5241 50 0.06 95
IV.CESI.HHZ. 2023-06-01T17:56:15.37 3.0 negative manual P 0.09 0
IV.NRCA.HHZ. 2023-06-01T17:56:13.34 0.3 undecidable manual P 36 42.5241 50 -0.12 70
IV.GAVE.EHZ. 2023-06-01T17:56:13.19 0.1 undecidable manual S 20 20.0688 117 0 100
IV.LNSS.HHZ. 2023-06-01T17:56:13.38 0.3 undecidable manual S 64 20.7681 116 -0.04 74
IV.MOMA.HHZ. 2023-06-01T17:56:12.51 0.6 undecidable manual P 328 36.8298 50 -0.08 48
IV.LNSS.HHZ. 2023-06-01T17:56:10.02 0.1 undecidable manual P 64 20.7681 116 0 100
IV.ARRO.EHZ. 2023-06-01T17:56:09.63 0.3 undecidable manual S 330 7.2927 145 -0.12 75
IV.GAVE.EHZ. 2023-06-01T17:56:09.94 0.1 undecidable manual P 20 20.0688 117 0.05 99
IV.ARRO.EHZ. 2023-06-01T17:56:08.03 0.1 undecidable manual P 330 7.2927 145 0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHN. ML:1.3 0.00027100000000000003 1.86 AML other m 2023-06-01T17:56:09.96
IV.ARRO.EHE. ML:1.1 0.0001855 0.6 AML other m 2023-06-01T17:56:10.91
IV.GAVE.EHN. ML:1.5 0.0002385 0.56 AML other m 2023-06-01T17:56:13.46
IV.GAVE.EHE. ML:1.4 0.000185 0.32 AML other m 2023-06-01T17:56:13.48
IV.LNSS.HHN. ML:1.3 0.00014150000000000002 0.12 AML other m 2023-06-01T17:56:13.68
IV.LNSS.HHE. ML:1.3 0.000145 1.62 AML other m 2023-06-01T17:56:13.99
IV.NRCA.HHE. ML:1.0 0.00002945 1.86 AML other m 2023-06-01T17:56:19.96
IV.NRCA.HHN. ML:0.9 0.0000226 0.82 AML other m 2023-06-01T17:56:20.29
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