Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.0 on date 18-06-2021 and time 06:15:11 (UTC) in region 7 km E Castel di Iudica (CT)

A magnitude Md 2.0 earthquake occured in region: 7 km E Castel di Iudica (CT), on

  • 18-06-2021 06:15:11 (UTC)
  • 18-06-2021 08:15:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.4910, 14.7310 at 17 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
Castel di Iudica CT 7 4625 4625
Catenanuova EN 9 4866 9491
Ramacca CT 12 10894 20385
Centuripe EN 15 5470 25855
Raddusa CT 18 3178 29033
Paternò CT 18 48228 77261
Palagonia CT 18 16608 93869
Regalbuto EN 20 7277 101146
Santa Maria di Licodia CT 20 7641 108787

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km W of Catania (314555 inhabitants)
41 Km W of Acireale (52622 inhabitants)
59 Km E of Caltanissetta (63360 inhabitants)
63 Km N of Vittoria (63339 inhabitants)
63 Km N of Ragusa (73313 inhabitants)
64 Km NE of Gela (75827 inhabitants)
69 Km NW of Siracusa (122291 inhabitants)
70 Km N of Modica (54633 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 		Md 2.0 2021-06-18
06:15:11		 37.4908 14.7307 17 2021-12-29
11:12:09		 Bollettino Sismico Italiano INGV 92310951
Reviewed
Rev100 		Md 1.6 2021-06-18
06:15:11		 37.4648 14.7163 11 2021-06-18
06:27:17		 Sala Sismica INGV-Roma 91480271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-18 06:15:11 ± 0.29
Latitude 37.4908 ± 0.0153
Longitude 14.7307 ± 0.0102
Depth (km) 17 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 92310951

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1739
Semi-minor axis of confidence ellipse (meter) 93
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 182
Circular confidence region, given by single value of horizontal uncertainty (meter) 1740.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 253
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.61514
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 8
Magnitudes information

Md:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 8
Type of magnitude Md
Reference to an origin 92310951
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-10-25 16:18:49

Md:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 8
Type of magnitude Md
Reference to an origin 91480271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-18 06:27:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GIZZ.HHZ. 2021-06-18T06:15:36.17 3.0 undecidable manual Sn -6.41 0
IV.HAVL.HHZ. 2021-06-18T06:15:32.36 0.6 undecidable manual S 149 68.2761 96 0.17 45
IV.HMDC.HHZ. 2021-06-18T06:15:29.53 0.6 undecidable manual S 175 59.1963 98 -0.24 45
IV.HVIT.HHZ. 2021-06-18T06:15:28.94 0.6 undecidable manual S 199 58.2972 98 -0.59 41
IV.SSY.HHZ. 2021-06-18T06:15:27.17 0.6 undecidable manual S 141 47.7189 100 0.41 44
IV.RAFF.HHZ. 2021-06-18T06:15:27.56 0.6 undecidable manual S 228 44.0226 101 1.77 23
IV.HAGA.HHZ. 2021-06-18T06:15:26.03 0.6 undecidable manual S 121 43.8228 101 0.31 46
IV.HCRL.HHZ. 2021-06-18T06:15:23.64 0.6 undecidable manual S 131 35.2425 105 0.16 48
IV.HAVL.HHZ. 2021-06-18T06:15:23.20 0.3 undecidable manual P 149 68.2761 96 -0.21 67
IV.TDS.HHZ. 2021-06-18T06:15:22.20 3.0 undecidable manual Sn -7.51 0
IV.HVIT.HHZ. 2021-06-18T06:15:21.49 0.3 undecidable manual P 199 58.2972 98 -0.38 65
IV.HMDC.HHZ. 2021-06-18T06:15:21.75 0.3 undecidable manual P 175 59.1963 98 -0.26 67
IV.SSY.HHZ. 2021-06-18T06:15:20.33 0.1 undecidable manual P 141 47.7189 100 0.06 95
IV.RAFF.HHZ. 2021-06-18T06:15:19.77 0.1 positive manual P 228 44.0226 101 0.06 96
IV.HAGA.HHZ. 2021-06-18T06:15:19.86 0.3 undecidable manual P 121 43.8228 101 0.19 70
IV.HLNI.HHZ. 2021-06-18T06:15:19.35 0.6 undecidable manual S 142 20.0688 121 -0.4 46
IV.HCRL.HHZ. 2021-06-18T06:15:18.44 0.1 undecidable manual P 131 35.2425 105 0.06 97
GU.PZZ.HHZ. 2021-06-18T06:15:17.14 3.0 positive manual Pg 11.94 0
IV.HLNI.HHZ. 2021-06-18T06:15:16.18 0.1 negative manual P 142 20.0688 121 -0.05 100
IV.PTRP.HHZ. 2021-06-18T06:15:03.42 3.0 undecidable manual Sn -6.64 0
GU.BURY.HHZ. 2021-06-18T06:14:58.13 3.0 undecidable manual Pn -0.11 0
IV.EUCT.HNZ. 2021-06-18T06:14:55.40 3.0 positive manual Pg 3.14 0
CH.FUORN.HHZ. 2021-06-18T06:14:53.71 3.0 undecidable manual Pn -5.9 0
IV.NOCI.HHZ. 2021-06-18T06:14:46.04 3.0 negative manual Pg 4.56 0
IV.COLB.HHZ. 2021-06-18T06:14:46.43 3.0 undecidable manual Sg 0.27 0
IV.SANR.HNZ. 2021-06-18T06:14:40.69 3.0 undecidable manual Pg -0.97 0
IV.MNTV.EHZ. 2021-06-18T06:14:38.10 3.0 negative manual Pn -2.05 0
IV.SENA.HHZ. 2021-06-18T06:14:36.74 3.0 positive manual Pn -9.99 0
IV.MRB1.HHZ. 2021-06-18T06:14:35.29 3.0 undecidable manual Sn -9.99 0
IV.MMN.HHZ. 2021-06-18T06:14:32.08 3.0 positive manual Pn -9.99 0
IV.TST01.HHZ. 2021-06-18T06:14:21.09 3.0 undecidable manual Sn -6.09 0
IV.MRB1.HHZ. 2021-06-18T06:14:14.42 3.0 undecidable manual Pn -8.22 0
IV.RMP.HHZ. 2021-06-18T06:14:00.91 3.0 positive manual P -9.89 0
IV.MMO1.EHZ. 2021-06-18T06:13:55.12 3.0 undecidable manual P -5.52 0
IV.FAGN.HHZ. 2021-06-18T06:13:54.82 3.0 undecidable manual P -7.41 0
IV.FIAM.HNZ. 2021-06-18T06:13:53.01 3.0 undecidable manual P -9.99 0
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