Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 03-04-2024 and time 08:17:15 (Italy) in region Costa Siracusana (Siracusa)

A magnitude ML 1.8 earthquake occured in region: Costa Siracusana (Siracusa), on

  • 03-04-2024 06:17:15 (UTC)
  • 03-04-2024 08:17:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.3320, 15.1840 at 16 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Augusta SR 12 36305 36305
Carlentini SR 16 17798 54103
Lentini SR 17 24085 78188
Melilli SR 18 13621 91809
Priolo Gargallo SR 19 12091 103900

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km SE of Catania (314555 inhabitants)
31 Km S of Acireale (52622 inhabitants)
32 Km N of Siracusa (122291 inhabitants)
60 Km NE of Ragusa (73313 inhabitants)
65 Km NE of Modica (54633 inhabitants)
71 Km NE of Vittoria (63339 inhabitants)
88 Km E of Gela (75827 inhabitants)
96 Km SW of Reggio di Calabria (183035 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 1.8 2024-04-03
06:17:15		 37.3318 15.1842 17 2024-04-03
06:23:10		 Sala Sismica INGV-Roma 126432201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-04-03 06:17:15 ± 0.12
Latitude 37.3318 ± 0.0045
Longitude 15.1842 ± 0.0057
Depth (km) 17 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 126432201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 667
Semi-minor axis of confidence ellipse (meter) 152
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 43
Circular confidence region, given by single value of horizontal uncertainty (meter) 670.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 242
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.05216
Epicentral distance of station farthest from the epicenter (degree) 0.49103
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.1
Num. used stations 14
Type of magnitude ML
Reference to an origin 126432201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-04-03 06:23:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAVL.HHZ. 2024-04-03T06:17:28.92 0.3 undecidable manual S 188 41.625 101 0.11 69
IV.HLNI.HHZ. 2024-04-03T06:17:25.17 0.3 undecidable manual S 274 27.5502 109 0 72
IV.HMDC.HHZ. 2024-04-03T06:17:24.75 0.3 undecidable manual P 221 54.501 97 -0.22 67
IV.HAVL.HHZ. 2024-04-03T06:17:23.05 0.3 undecidable manual P 188 41.625 101 0.04 70
IV.SSY.HHZ. 2024-04-03T06:17:23.67 0.3 undecidable manual S 207 21.6672 116 -0.03 73
IV.HCRL.HHE. 2024-04-03T06:17:22.03 0.3 undecidable manual S 248 14.4744 130 -0.05 74
IV.AGST.EHZ. 2024-04-03T06:17:21.05 0.3 undecidable manual S 156 9.1797 145 -0.09 73
IV.HLNI.HHZ. 2024-04-03T06:17:20.81 0.3 positive manual P 274 27.5502 109 -0.1 72
IV.SSY.HHZ. 2024-04-03T06:17:20.04 0.1 positive manual P 207 21.6672 116 -0.03 98
IV.HAGA.HHE. 2024-04-03T06:17:20.77 0.3 undecidable manual S 206 5.7942 157 0.07 75
IV.HCRL.HHE. 2024-04-03T06:17:19.35 0.1 undecidable manual P 248 14.4744 130 0.22 95
IV.HAGA.HHE. 2024-04-03T06:17:18.37 0.1 undecidable manual P 206 5.7942 157 0.04 100
IV.AGST.EHZ. 2024-04-03T06:17:18.51 0.1 positive manual P 156 9.1797 145 -0.08 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.AGST.EHE. ML:1.6 0.00039150000000000003 0.62 AML other m 2024-04-03T06:17:21.12
IV.AGST.EHN. ML:1.7 0.0004115 0.68 AML other m 2024-04-03T06:17:21.18
IV.SSY.HHE. ML:1.7 0.00026649999999999997 0.76 AML other m 2024-04-03T06:17:24.07
IV.SSY.HNN. ML:1.7 0.0003145 0.48 AML other m 2024-04-03T06:17:24.72
IV.HLNI.HHE. ML:1.9 0.0003885 0.18 AML other m 2024-04-03T06:17:25.32
IV.HLNI.HNE. ML:1.9 0.00039600000000000003 0.18 AML other m 2024-04-03T06:17:25.33
IV.HLNI.HHN. ML:2.0 0.000481 0.16 AML other m 2024-04-03T06:17:25.26
IV.HLNI.HNN. ML:2.0 0.00046049999999999997 0.26 AML other m 2024-04-03T06:17:25.27
IV.SSY.HHN. ML:1.8 0.0004055 0.58 AML other m 2024-04-03T06:17:25.17
IV.SSY.HNE. ML:1.8 0.00034899999999999997 1.06 AML other m 2024-04-03T06:17:25.02
IV.HAVL.HHE. ML:1.7 0.00014250000000000002 0.6 AML other m 2024-04-03T06:17:29.05
IV.HAVL.HHN. ML:1.6 0.0001315 0.42 AML other m 2024-04-03T06:17:29.46
IV.HVZN.HHE. ML:1.8 0.000183 1.58 AML other m 2024-04-03T06:17:31.85
IV.HVZN.HHN. ML:1.8 0.00017999999999999998 1.38 AML other m 2024-04-03T06:17:32.73
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