Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 18-02-2023 and time 14:13:52 (UTC) in region 5 km NE Cittareale (RI)

A magnitude ML 0.7 earthquake occured in region: 5 km NE Cittareale (RI), on

  • 18-02-2023 14:13:52 (UTC)
  • 18-02-2023 15:13:52 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6610, 13.1890 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Cittareale RI 5 482 482
Accumoli RI 6 667 1149
Amatrice RI 9 2657 3806
Arquata del Tronto AP 15 1178 4984
Cascia PG 16 3217 8201
Montereale AQ 16 2581 10782
Norcia PG 17 4957 15739
Posta RI 17 694 16433
Borbona RI 17 617 17050
Capitignano AQ 18 665 17715
Campotosto AQ 19 542 18257
Monteleone di Spoleto PG 19 599 18856

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km NW of L'Aquila (69753 inhabitants)
42 Km W of Teramo (54892 inhabitants)
46 Km E of Terni (111501 inhabitants)
51 Km SE of Foligno (57155 inhabitants)
80 Km W of Montesilvano (53738 inhabitants)
82 Km SE of Perugia (166134 inhabitants)
83 Km NE of Guidonia Montecelio (88673 inhabitants)
84 Km NE of Tivoli (56533 inhabitants)
87 Km W of Pescara (121014 inhabitants)
87 Km W of Chieti (51815 inhabitants)
93 Km E of Viterbo (67173 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
Bulletin
Rev1000 		ML 0.7 2023-02-18
14:13:52		 42.6612 13.1887 10 2024-03-01
17:18:17		 Bollettino Sismico Italiano INGV 122741011
Reviewed
Rev100 		ML 0.7 2023-02-18
14:13:53		 42.6578 13.1798 8 2023-02-18
14:30:22		 Sala Sismica INGV-Roma 114549681
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-18 14:13:52 ± 0.11
Latitude 42.6612 ± 0.0045
Longitude 13.1887 ± 0.0073
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 122741011

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 599
Semi-minor axis of confidence ellipse (meter) 395
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 85
Circular confidence region, given by single value of horizontal uncertainty (meter) 600.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 106
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.25001
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations 9
Type of magnitude ML
Reference to an origin 122741011
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-11-03 11:48:50

ML:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations 9
Type of magnitude ML
Reference to an origin 114549681
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-18 14:30:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
TV.GMB1.HHZ. 2023-02-18T14:15:06.97 3.0 undecidable manual Sn -1.31 0
IV.ORI.HHZ. 2023-02-18T14:15:05.46 3.0 undecidable manual Sn 2.8 0
IV.BRMO.HHZ. 2023-02-18T14:15:00.80 3.0 undecidable manual Pg 11.26 0
IV.RUFI.EHZ. 2023-02-18T14:14:57.71 3.0 undecidable manual Sg 4.15 0
IV.BSSO.HHZ. 2023-02-18T14:14:54.07 3.0 undecidable manual Sg 20.98 0
IV.MBFT.HHZ. 2023-02-18T14:14:52.67 3.0 undecidable manual Sg 16.299999 0
IV.ALJA.HHZ. 2023-02-18T14:14:43.20 3.0 undecidable manual Sn -4.72 0
IV.PIPA.HHZ. 2023-02-18T14:14:38.62 3.0 undecidable manual Pg 15.68 0
IV.ERC.EHZ. 2023-02-18T14:14:37.06 3.0 undecidable manual Sn 5.32 0
IV.MAGA.HHZ. 2023-02-18T14:14:36.52 3.0 positive manual Pn -3.16 0
1J.FX11.HHZ. 2023-02-18T14:14:29.85 3.0 undecidable manual Pg 11.34 0
IV.MSRU.HHZ. 2023-02-18T14:14:20.80 3.0 undecidable manual Pn 3.45 0
IV.CAR1.HHZ. 2023-02-18T14:14:19.32 3.0 undecidable manual Pn 1.62 0
IV.CROCE.HHZ. 2023-02-18T14:14:18.71 3.0 undecidable manual Pn -5.85 0
IV.PLLN.EHZ. 2023-02-18T14:14:18.19 3.0 positive manual Pg 9.07 0
IV.EPOZ.HNZ. 2023-02-18T14:14:17.91 3.0 negative manual Pn -2.1 0
IV.RUFI.EHZ. 2023-02-18T14:14:17.50 3.0 undecidable manual Pg 4.96 0
IV.CAFI.HHZ. 2023-02-18T14:14:09.23 3.0 undecidable manual Pg 3.42 0
IV.ALJA.HHZ. 2023-02-18T14:14:06.93 3.0 negative manual Pn -2.44 0
IV.CAFE.HHZ. 2023-02-18T14:14:05.61 3.0 undecidable manual Pn 0.39 0
IV.MC2.EHZ. 2023-02-18T14:14:03.02 0.6 undecidable manual S 0 27.75 50 0.16 49
IV.NRCA.HHZ. 2023-02-18T14:14:00.22 0.3 undecidable manual S 342 20.0688 116 -0.2 74
IV.RM33.EHZ. 2023-02-18T14:13:59.15 0.3 undecidable manual S 173 17.0718 120 -0.34 72
IV.LNSS.HHZ. 2023-02-18T14:13:58.80 0.3 undecidable manual S 242 13.7751 125 0.28 73
IV.MC2.EHZ. 2023-02-18T14:13:58.51 0.3 undecidable manual P 0 27.75 50 -0.05 75
IV.VAGA.HHZ. 2023-02-18T14:13:58.38 3.0 undecidable manual P 1.46 0
IV.SMA1.EHZ. 2023-02-18T14:13:58.34 0.3 undecidable manual S 106 12.4764 128 0.18 75
IV.NRCA.HHZ. 2023-02-18T14:13:57.04 0.1 undecidable manual P 342 20.0688 116 -0.11 100
IV.SMA1.EHZ. 2023-02-18T14:13:56.08 0.3 undecidable manual P 106 12.4764 128 0.23 74
IV.LNSS.HHZ. 2023-02-18T14:13:56.22 0.3 undecidable manual P 242 13.7751 125 0.16 75
IV.RM33.EHZ. 2023-02-18T14:13:56.45 0.1 positive manual P 173 17.0718 120 -0.16 99
IV.VVLD.HHZ. 2023-02-18T14:13:50.18 3.0 negative manual Pn -4.9 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:0.4 0.000028766920000000002 0.32 AML other m 2023-02-18T14:13:58.50
IV.LNSS.HHN. ML:0.5 0.000032974625 0.1408 AML other m 2023-02-18T14:13:58.88
IV.LNSS.HHE. ML:0.6 0.00004071636 0.1216 AML other m 2023-02-18T14:13:58.87
IV.SMA1.EHN. ML:0.4 0.00002724829 0.2176 AML other m 2023-02-18T14:13:58.97
IV.RM33.EHN. ML:0.9 0.00006835061000000001 0.1664 AML other m 2023-02-18T14:13:59.33
IV.RM33.EHE. ML:0.8 0.000050100000000000005 0.16 AML other m 2023-02-18T14:13:59.53
IV.RM33.HNE. ML:1.3 0.00017084808 1.6096 AML other m 2023-02-18T14:13:59.18
IV.NRCA.HHE. ML:1.0 0.000077082355 0.1024 AML other m 2023-02-18T14:14:00.50
IV.NRCA.HHN. ML:0.7 0.000040105455 0.1408 AML other m 2023-02-18T14:14:00.72
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