Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 03-04-2016 and time 04:36:25 (Italy) in region 5 km S Floridia (SR)

A magnitude ML 2.0 earthquake occured in region: 5 km S Floridia (SR), on

  • 03-04-2016 02:36:25 (UTC)
  • 03-04-2016 04:36:25 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.0370, 15.1440 at 25 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
Floridia SR 5 22762 22762
Canicattini Bagni SR 7 7109 29871
Solarino SR 8 8091 37962
Siracusa SR 14 122291 160253
Avola SR 14 31708 191961
Priolo Gargallo SR 14 12091 204052
Melilli SR 16 13621 217673
Sortino SR 17 8690 226363
Noto SR 17 23913 250276
Cassaro SR 19 821 251097

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km W of Siracusa (122291 inhabitants)
39 Km E of Ragusa (73313 inhabitants)
39 Km NE of Modica (54633 inhabitants)
52 Km S of Catania (314555 inhabitants)
55 Km E of Vittoria (63339 inhabitants)
64 Km S of Acireale (52622 inhabitants)
79 Km E of Gela (75827 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 2.0 2016-04-03
02:36:25		 37.0368 15.1437 25 2016-05-17
13:18:33		 Bollettino Sismico Italiano INGV 24952191
Reviewed
Rev100 		ML 2.0 2016-04-03
02:36:25		 37.0378 15.1347 25 2016-04-03
02:43:58		 Sala Sismica INGV-Roma 24093911
Reviewed
Rev100 		ML 2.0 2016-04-03
02:36:25		 37.0378 15.1347 25 2016-04-03
02:43:43		 Sala Sismica INGV-Roma 24093901
Reviewed
Rev100 		ML 2.0 2016-04-03
02:36:25		 37.0378 15.1347 25 2016-04-03
02:43:31		 Sala Sismica INGV-Roma 24093891
Reviewed
Rev100 		ML 2.0 2016-04-03
02:36:25		 37.0378 15.1347 25 2016-04-03
02:42:52		 Sala Sismica INGV-Roma 24093871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-04-03 02:36:25 ± 0.18
Latitude 37.0368 ± 0.0045
Longitude 15.1437 ± 0.0090
Depth (km) 25 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 24952191

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 780
Semi-minor axis of confidence ellipse (meter) 98
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 107
Circular confidence region, given by single value of horizontal uncertainty (meter) 780.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 176
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.07914
Epicentral distance of station farthest from the epicenter (degree) 0.37951
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 5
Type of magnitude ML
Reference to an origin 24093891
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-04-03 02:43:31

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 5
Type of magnitude ML
Reference to an origin 24952191
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2016-05-08 22:59:27

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 5
Type of magnitude ML
Reference to an origin 24093871
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-04-03 02:42:52

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 5
Type of magnitude ML
Reference to an origin 24093911
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-04-03 02:43:58

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 5
Type of magnitude ML
Reference to an origin 24093901
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-04-03 02:43:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HLNI.HHZ. 2016-04-03T02:36:39.64 0.3 undecidable manual S 325 42.1245 114 -0.07 71
IV.HPAC.HHZ. 2016-04-03T02:36:38.37 0.3 undecidable manual S 195 37.629 117 -0.27 68
IV.HMDC.HHZ. 2016-04-03T02:36:37.71 0.3 undecidable manual S 255 33.0447 120 0.14 71
IV.HAGA.HHZ. 2016-04-03T02:36:36.45 0.3 undecidable manual S 2 27.5502 126 0.12 72
IV.MEU.SHZ. 2016-04-03T02:36:36.74 0.3 undecidable manual S 287 28.9488 124 0.1 72
IV.AGST.EHZ. 2016-04-03T02:36:35.97 0.3 undecidable manual S 17 25.4523 129 0.08 72
IV.HPAC.HHZ. 2016-04-03T02:36:33.00 0.3 undecidable manual P 195 37.629 117 0.03 72
IV.HAVL.HHZ. 2016-04-03T02:36:33.41 0.6 undecidable manual S 193 8.7801 158 0.24 48
IV.HLNI.HHZ. 2016-04-03T02:36:33.48 0.1 negative manual P 325 42.1245 114 -0.11 93
IV.SSY.HHZ. 2016-04-03T02:36:33.38 0.3 undecidable manual S 335 14.7741 145 -0.55 66
IV.HMDC.HHZ. 2016-04-03T02:36:32.32 0.1 undecidable manual P 255 33.0447 120 -0.04 96
IV.AGST.EHZ. 2016-04-03T02:36:31.42 0.3 undecidable manual P 17 25.4523 129 0.04 73
IV.HAGA.HHZ. 2016-04-03T02:36:31.63 0.1 undecidable manual P 2 27.5502 126 -0.01 98
IV.MEU.SHZ. 2016-04-03T02:36:31.74 0.1 undecidable manual P 287 28.9488 124 -0.08 96
IV.SSY.HHZ. 2016-04-03T02:36:30.52 0.1 undecidable manual P 335 14.7741 145 0.27 95
IV.HAVL.HHZ. 2016-04-03T02:36:29.87 0.1 undecidable manual P 193 8.7801 158 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HAGA.HHE. ML:1.8 0.00027100000000000003 0.26 AML other m 2016-04-03T02:36:37.15
IV.HAGA.HHN. ML:1.9 0.0003355 1.58 AML other m 2016-04-03T02:36:37.01
IV.HAVL.HHE. ML:2.4 0.0016899999999999999 0.2 AML other m 2016-04-03T02:36:33.56
IV.HAVL.HHN. ML:2.3 0.0013 0.96 AML other m 2016-04-03T02:36:33.69
IV.HMDC.HHN. ML:1.9 0.000255 0.26 AML other m 2016-04-03T02:36:37.98
IV.HMDC.HHE. ML:1.9 0.0002475 1.24 AML other m 2016-04-03T02:36:38.46
IV.MEU.SHN. ML:0.0 0.0009435 0.24 AML other m 2016-04-03T02:36:37.04
IV.MEU.SHE. ML:0.0 0.00031 0.96 AML other m 2016-04-03T02:36:40.74
IV.SSY.HHE. ML:1.7 0.000297 1.28 AML other m 2016-04-03T02:36:34.54
IV.SSY.HHN. ML:2.2 0.0008765000000000001 0.72 AML other m 2016-04-03T02:36:35.94
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
Waveforms Seismic signals in miniseed + resp format Download