Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 18-01-2024 and time 04:56:38 (UTC) in region 2 km W Greccio (RI)

A magnitude ML 1.3 earthquake occured in region: 2 km W Greccio (RI), on

  • 18-01-2024 04:56:38 (UTC)
  • 18-01-2024 05:56:38 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.4580, 12.7520 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
Greccio RI 2 1558 1558
Colli sul Velino RI 5 533 2091
Contigliano RI 5 3783 5874
Cottanello RI 8 563 6437
Stroncone TR 9 4917 11354
Labro RI 9 374 11728
Configni RI 10 633 12361
Montasola RI 10 395 12756
Morro Reatino RI 10 373 13129
Rivodutri RI 11 1253 14382
Rieti RI 11 47698 62080
Poggio Bustone RI 12 2055 64135
Vacone RI 12 256 64391
Cantalice RI 13 2755 67146
Arrone TR 14 2763 69909
Terni TR 14 111501 181410
Monte San Giovanni in Sabina RI 15 714 182124
Casperia RI 15 1246 183370
Torri in Sabina RI 15 1256 184626
Montefranco TR 16 1276 185902
Roccantica RI 16 563 186465
Polino TR 16 233 186698
Montebuono RI 16 883 187581
Calvi dell'Umbria TR 16 1856 189437
Tarano RI 17 1444 190881
Cittaducale RI 18 6828 197709
Ferentillo TR 18 1913 199622
Selci RI 19 1106 200728
Poggio Catino RI 19 1341 202069
Cantalupo in Sabina RI 19 1685 203754
Belmonte in Sabina RI 19 636 204390

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km SE of Terni (111501 inhabitants)
51 Km N of Guidonia Montecelio (88673 inhabitants)
53 Km E of Viterbo (67173 inhabitants)
54 Km W of L'Aquila (69753 inhabitants)
55 Km N of Tivoli (56533 inhabitants)
56 Km S of Foligno (57155 inhabitants)
67 Km NE of Roma (2864731 inhabitants)
78 Km SE of Perugia (166134 inhabitants)
81 Km W of Teramo (54892 inhabitants)
86 Km N of Velletri (53303 inhabitants)
87 Km NE of Fiumicino (78395 inhabitants)
89 Km E of Civitavecchia (52991 inhabitants)
90 Km N of Pomezia (62966 inhabitants)
96 Km N of Aprilia (73446 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 2024-01-18
04:56:38		 42.4585 12.7523 10 2024-01-18
05:09:56		 Sala Sismica INGV-Roma 124711511
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-01-18 04:56:38 ± 0.05
Latitude 42.4585 ± 0.0018
Longitude 12.7523 ± 0.0049
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 124711511

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 423
Semi-minor axis of confidence ellipse (meter) 232
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 269
Circular confidence region, given by single value of horizontal uncertainty (meter) 420.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 102
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.58816
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 124711511
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-01-18 05:09:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
SL.LJU.BHZ. 2024-01-18T04:58:38.17 3.0 undecidable manual Sg 15.48 0
CH.BERNI.HHZ. 2024-01-18T04:58:37.64 3.0 undecidable manual Sn -0.59 0
IV.HPAC.HHZ. 2024-01-18T04:58:25.24 3.0 positive manual Pg 15.84 0
OX.SABO.HHZ. 2024-01-18T04:58:14.08 3.0 undecidable manual Sn -3.31 0
IV.ACATE.EHZ. 2024-01-18T04:58:09.38 3.0 positive manual Pn 5.65 0
IV.CET2.HHZ. 2024-01-18T04:57:38.81 3.0 undecidable manual Pn 0.05 0
IV.SFI.EHZ. 2024-01-18T04:57:30.60 3.0 undecidable manual S 1.27 0
IX.SCL3.EHZ.02 2024-01-18T04:57:30.48 3.0 positive manual Pg 6.74 0
IV.SENI.HNZ. 2024-01-18T04:57:19.38 3.0 undecidable manual S -2.03 0
IV.MRB1.HHZ. 2024-01-18T04:57:16.37 3.0 undecidable manual Pn 0.76 0
IV.GIUL.HHZ. 2024-01-18T04:57:14.64 3.0 undecidable manual S -1.43 0
IV.SSFR.HHZ. 2024-01-18T04:57:12.80 3.0 undecidable manual S 0.4 0
IV.T0110.HHZ. 2024-01-18T04:56:54.36 3.0 negative manual P -1.14 0
IV.RM33.EHZ. 2024-01-18T04:56:51.60 0.3 undecidable manual S 81 38.2284 50 0.17 72
IV.ASSB.HHZ. 2024-01-18T04:56:50.21 0.3 undecidable manual P 353 65.2902 50 0.05 71
IV.GAVE.HNZ. 2024-01-18T04:56:48.67 0.3 undecidable manual S 24 28.3494 50 -0.14 74
IV.LNSS.HHZ. 2024-01-18T04:56:48.78 0.3 undecidable manual S 56 28.4493 50 -0.05 76
IV.NRCA.HHZ. 2024-01-18T04:56:47.91 0.3 undecidable manual P 35 51.0156 50 -0.06 72
IT.MMP1.HGZ. 2024-01-18T04:56:47.33 0.3 undecidable manual S 181 23.2545 114 -0.05 76
IV.CESX.HHZ. 2024-01-18T04:56:46.67 0.3 undecidable manual S 321 21.4674 115 -0.15 75
IV.RM33.EHZ. 2024-01-18T04:56:45.95 0.3 undecidable manual P 81 38.2284 50 -0.05 74
IV.SRES.HHE. 2024-01-18T04:56:45.16 0.3 undecidable manual P 219 31.6461 50 0.18 73
IV.LNSS.HHZ. 2024-01-18T04:56:44.45 0.3 undecidable manual P 56 28.4493 50 -0.05 76
IV.ARRO.EHZ. 2024-01-18T04:56:44.42 0.3 undecidable manual S 5 13.4754 127 -0.01 78
IV.GAVE.HNZ. 2024-01-18T04:56:44.41 0.3 undecidable manual P 24 28.3494 50 -0.07 75
IT.MMP1.HGZ. 2024-01-18T04:56:43.48 0.3 undecidable manual P 181 23.2545 114 -0.18 74
IV.CESX.HHZ. 2024-01-18T04:56:43.65 1.0 undecidable manual P 321 21.4674 115 0.32 24
IV.ARRO.EHZ. 2024-01-18T04:56:42.17 0.1 undecidable manual P 5 13.4754 127 0.21 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHE. ML:1.4 0.000144 0.18 AML other m 2024-01-18T04:56:49.50
IV.LNSS.HHN. ML:1.6 0.000202 1.14 AML other m 2024-01-18T04:56:50.77
IV.ARRO.EHE. ML:1.2 0.00016751 0.1984 AML other m 2024-01-18T04:56:46.68
IV.ARRO.EHN. ML:1.3 0.00019115845 0.1792 AML other m 2024-01-18T04:56:44.89
IV.CESX.HHE. ML:0.8 0.0000444 0.3584 AML other m 2024-01-18T04:56:47.65
IV.CESX.HHN. ML:0.9 0.000056071460000000004 0.2816 AML other m 2024-01-18T04:56:46.68
IV.RM33.EHE. ML:1.3 0.000069790975 0.1632 AML other m 2024-01-18T04:56:52.77
IV.RM33.EHN. ML:1.2 0.000061767055 0.9984 AML other m 2024-01-18T04:56:52.44
IV.NRCA.HHE. ML:1.4 0.00006152355 0.1184 AML other m 2024-01-18T04:56:57.92
IV.NRCA.HHN. ML:1.2 0.000046918045 0.1408 AML other m 2024-01-18T04:56:58.40
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