Earthquake with magnitude of ML 1.8 on date 18-06-2021 and time 02:31:27 (Italy) in region 6 km E Carlentini (SR)

A magnitude ML 1.8 earthquake occured in region: 6 km E Carlentini (SR), on

  • 18-06-2021 00:31:27 (UTC)
  • 18-06-2021 02:31:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.271, 15.083 at 23 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
Carlentini SR 6 17798 17798
Lentini SR 8 24085 41883
Melilli SR 11 13621 55504
Sortino SR 13 8690 64194
Augusta SR 13 36305 100499
Priolo Gargallo SR 16 12091 112590
Francofonte SR 18 12800 125390
Solarino SR 19 8091 133481

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km S of Catania (314555 inhabitants)
30 Km NW of Siracusa (122291 inhabitants)
39 Km S of Acireale (52622 inhabitants)
49 Km NE of Ragusa (73313 inhabitants)
54 Km NE of Modica (54633 inhabitants)
60 Km NE of Vittoria (63339 inhabitants)
77 Km E of Gela (75827 inhabitants)
94 Km E of Caltanissetta (63360 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.8 2021-06-18
00:31:27
37.2712 15.0828 23 2021-06-18
00:42:19
Sala Sismica INGV-Roma 91473661
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-18 00:31:27 ± 0.12
Latitude 37.2712 ± 0.0054
Longitude 15.0828 ± 0.0079
Depth (km) 23 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 91473661

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 511
Semi-minor axis of confidence ellipse (meter) 505
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 232
Circular confidence region, given by single value of horizontal uncertainty (meter) 510
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 71
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.89932
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 16
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 28
Type of magnitude ML
Reference to an origin 91473661
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-18 00:42:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CLTA.HHE. 2021-06-18T00:31:45.37 0.6 undecidable manual P 263 0.8993 98 0.69 36
IV.AIO.HHE. 2021-06-18T00:31:41.49 0.3 undecidable manual P 10 0.7096 100 0.01 65
IV.HAVL.HHZ. 2021-06-18T00:31:40.41 0.3 undecidable manual S 174 0.313 116 0.15 69
IV.HPAC.HHZ. 2021-06-18T00:31:39.05 0.3 undecidable manual P 184 0.5639 103 0.02 68
IV.ESCV.HHE. 2021-06-18T00:31:39.11 0.3 undecidable manual P 336 0.5207 105 0.79 56
IV.CROCE.HHZ. 2021-06-18T00:31:39.80 0.3 undecidable manual P 225 0.6196 102 -0.16 64
IV.RAFF.HHZ. 2021-06-18T00:31:39.43 0.1 undecidable manual P 265 0.5756 103 0.2 87
IV.HVIT.HHZ. 2021-06-18T00:31:38.18 0.1 undecidable manual P 238 0.527 104 -0.24 86
IV.HSRS.HHE. 2021-06-18T00:31:37.84 0.3 undecidable manual S 148 0.2095 129 0.17 70
IV.ENIC.HHZ. 2021-06-18T00:31:36.68 3.0 undecidable manual Sn 0.31 0
IV.SSY.HHZ. 2021-06-18T00:31:36.07 0.3 undecidable manual S 184 0.1133 147 0.32 69
IV.HMDC.HHZ. 2021-06-18T00:31:36.18 0.3 undecidable manual P 218 0.393 110 -0.05 69
IV.HLNI.HHZ. 2021-06-18T00:31:36.70 0.3 undecidable manual S 295 0.1844 133 -0.4 67
IV.ESPC.HHE. 2021-06-18T00:31:36.75 0.3 undecidable manual P 354 0.4236 109 0.03 69
IV.HCRL.HHZ. 2021-06-18T00:31:35.16 0.1 undecidable manual S 287 0.0414 167 0.24 94
IT.LNT.HGE. 2021-06-18T00:31:35.13 0.3 undecidable manual S 285 0.0665 160 0.01 74
IV.HAVL.HHZ. 2021-06-18T00:31:34.87 0.1 undecidable manual P 174 0.313 116 -0.11 93
IV.HAGA.HHZ. 2021-06-18T00:31:34.93 0.1 undecidable manual S 77 0.0594 162 -0.12 98
IV.HSRS.HHE. 2021-06-18T00:31:33.30 0.1 undecidable manual P 148 0.2095 129 -0.18 93
IV.SSY.HHZ. 2021-06-18T00:31:32.39 0.1 undecidable manual P 184 0.1133 147 0.02 98
IV.HLNI.HHZ. 2021-06-18T00:31:32.84 0.1 undecidable manual P 295 0.1844 133 -0.31 91
IV.HAGA.HHZ. 2021-06-18T00:31:31.79 0.1 undecidable manual P 77 0.0594 162 -0.18 96
IV.HCRL.HHZ. 2021-06-18T00:31:31.89 0.1 undecidable manual P 287 0.0414 167 0 100
IT.LNT.HGE. 2021-06-18T00:31:31.89 0.3 undecidable manual P 285 0.0665 160 -0.12 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HAGA.HHN. ML:2.1 0.0009095 0.08 AML other m 2021-06-18T00:31:35.07
IV.HAGA.HHE. ML:1.9 0.000595 1.72 AML other m 2021-06-18T00:31:35.09
IV.HCRL.HHN. ML:1.8 0.000487 0.08 AML other m 2021-06-18T00:31:35.17
IV.HCRL.HHE. ML:1.8 0.000447 0.6 AML other m 2021-06-18T00:31:35.23
IV.HLNI.HHN. ML:2 0.000471 0.1 AML other m 2021-06-18T00:31:36.93
IV.HLNI.HHE. ML:1.6 0.0002 1.88 AML other m 2021-06-18T00:31:37.00
IV.SSY.HHE. ML:1.9 0.000509 0.64 AML other m 2021-06-18T00:31:37.45
IV.SSY.HHN. ML:2.2 0.000917 1.7 AML other m 2021-06-18T00:31:37.04
IV.HAVL.HHN. ML:2.1 0.000463 0.38 AML other m 2021-06-18T00:31:41.26
IV.HAVL.HHE. ML:1.9 0.000281 1.12 AML other m 2021-06-18T00:31:41.56
IV.HMDC.HHE. ML:1.7 0.0001276 0.22 AML other m 2021-06-18T00:31:43.35
IV.HMDC.HHN. ML:1.5 9.39E-5 1.32 AML other m 2021-06-18T00:31:44.33
IV.EMPL.HHE. ML:2.5 0.000798 1.06 AML other m 2021-06-18T00:31:46.21
IV.ENIC.HHE. ML:1.9 0.00022 0.14 AML other m 2021-06-18T00:31:47.02
IV.HVIT.HHN. ML:1.5 6.24E-5 0.6 AML other m 2021-06-18T00:31:47.03
IV.ENIC.HHN. ML:1.8 0.0002045 1.58 AML other m 2021-06-18T00:31:47.02
IV.HPAC.HHE. ML:1.9 0.000132 0.8 AML other m 2021-06-18T00:31:48.53
IV.HPAC.HHN. ML:1.8 0.0001245 1.24 AML other m 2021-06-18T00:31:48.05
IV.HVIT.HHE. ML:1.4 5.45E-5 1.42 AML other m 2021-06-18T00:31:48.86
IV.EMPL.HHN. ML:2.3 0.0005925 0.84 AML other m 2021-06-18T00:31:48.51
IV.RAFF.HHN. ML:1.5 5.69E-5 0.32 AML other m 2021-06-18T00:31:49.55
IV.CROCE.HHE. ML:1.3 2.81E-5 0.52 AML other m 2021-06-18T00:31:49.56
IV.ECTS.HHE. ML:1.6 6.495E-5 0.94 AML other m 2021-06-18T00:31:50.13
IV.CROCE.HHN. ML:1.4 4.255E-5 1.22 AML other m 2021-06-18T00:31:50.84
IV.EPZF.HHE. ML:1.8 0.0001195 1 AML other m 2021-06-18T00:31:51.37
IV.RAFF.HHE. ML:1.4 5.21E-5 0.24 AML other m 2021-06-18T00:31:52.41
IV.ECTS.HHN. ML:1.9 0.00012885 0.8 AML other m 2021-06-18T00:31:52.31
IV.EPZF.HHN. ML:2 0.0001645 0.9 AML other m 2021-06-18T00:31:59.54
IV.MSRU.HHN. ML:1.5 2.645E-5 0.36 AML other m 2021-06-18T00:32:03.10
IV.MSRU.HHE. ML:1.6 2.91E-5 0.78 AML other m 2021-06-18T00:32:03.82
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