Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 12-10-2019 and time 05:16:32 (UTC) in region Costa Siracusana (Siracusa)

A magnitude ML 2.0 earthquake occured in region: Costa Siracusana (Siracusa), on

  • 12-10-2019 05:16:32 (UTC)
  • 12-10-2019 07:16:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 36.5960, 15.3540 at 26 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
52 Km S of Siracusa (122291 inhabitants)
60 Km SE of Modica (54633 inhabitants)
67 Km SE of Ragusa (73313 inhabitants)
83 Km SE of Vittoria (63339 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 2019-10-12
05:16:32		 36.5957 15.3535 27 2020-02-28
16:42:13		 Bollettino Sismico Italiano INGV 74573581
Reviewed
Rev100 		ML 1.9 2019-10-12
05:16:33		 36.6103 15.3988 10 2019-10-12
05:23:23		 Sala Sismica INGV-Roma 73208271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-12 05:16:32 ± 0.23
Latitude 36.5957 ± 0.0090
Longitude 15.3535 ± 0.0146
Depth (km) 27 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 74573581

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 994
Semi-minor axis of confidence ellipse (meter) 944
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 91
Circular confidence region, given by single value of horizontal uncertainty (meter) 990.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 303
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.00994
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 73208271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-12 05:23:23

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 74573581
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-12-12 09:24:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MC2.EHZ. 2019-10-12T05:18:25.85 3.0 negative manual Pg 19.379999 0
IV.MOMA.HHZ. 2019-10-12T05:18:22.27 3.0 undecidable manual Pg 15.29 0
IV.APEC.HHZ. 2019-10-12T05:18:16.76 3.0 undecidable manual Pn -0.48 0
MN.KLV.HHZ. 2019-10-12T05:18:04.38 3.0 positive manual Pg 9.97 0
IV.SRES.HHZ. 2019-10-12T05:18:02.74 3.0 negative manual Pn 2.79 0
AC.VLO.HHZ. 2019-10-12T05:17:40.30 3.0 negative manual Pn -6.11 0
IV.ALJA.HHZ. 2019-10-12T05:17:06.48 3.0 undecidable manual Pg 5.85 0
IV.HLNI.HHZ. 2019-10-12T05:17:00.35 0.3 undecidable manual S 333 93.8394 101 -0.47 60
IV.HVZN.HNZ. 2019-10-12T05:16:59.57 0.6 undecidable manual S 319 85.9473 102 0.81 36
IV.HAGA.HHZ. 2019-10-12T05:16:56.69 0.3 undecidable manual S 347 78.4659 103 -0.13 66
IV.AGST.EHE. 2019-10-12T05:16:55.88 0.3 undecidable manual S 351 74.1702 104 0.18 69
IV.SSY.HHZ. 2019-10-12T05:16:54.39 0.3 undecidable manual S 338 67.0773 106 0.51 65
IV.RAFF.HHZ. 2019-10-12T05:16:52.08 0.3 undecidable manual P 309 112.0989 99 0.26 60
IV.HLNI.HHZ. 2019-10-12T05:16:48.55 0.3 undecidable manual P 333 93.8394 101 -0.49 61
IV.ISPIC.EHZ. 2019-10-12T05:16:48.15 0.6 undecidable manual S 297 45.0216 114 -0.17 48
IV.HVZN.HNZ. 2019-10-12T05:16:47.96 0.3 undecidable manual P 319 85.9473 102 0.11 66
IV.HAGA.HHZ. 2019-10-12T05:16:46.57 0.1 undecidable manual P 347 78.4659 103 -0.16 90
IV.AGST.EHE. 2019-10-12T05:16:46.02 0.3 undecidable manual P 351 74.1702 104 -0.06 69
IV.SSY.HHZ. 2019-10-12T05:16:45.09 0.1 undecidable manual P 338 67.0773 106 0.06 93
IV.HPAC.HHZ. 2019-10-12T05:16:44.80 0.6 undecidable manual S 294 30.8469 125 -0.21 48
IT.PPL1.HGN. 2019-10-12T05:16:43.28 0.3 undecidable manual S 297 22.0668 136 0.05 77
IV.ISPIC.EHZ. 2019-10-12T05:16:41.54 0.3 undecidable manual P 297 45.0216 114 -0.28 71
IV.HPAC.HHZ. 2019-10-12T05:16:39.90 0.1 negative manual P 294 30.8469 125 -0.01 100
IT.PPL1.HGN. 2019-10-12T05:16:38.99 0.1 undecidable manual P 297 22.0668 136 0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HAGA.HHE. ML:2.0 0.00015165 0.16 AML other m 2019-10-12T05:16:57.66
IV.HAGA.HHN. ML:2.0 0.000134 1.12 AML other m 2019-10-12T05:16:57.87
IV.SSY.HHN. ML:2.5 0.00055420945 0.1824 AML other m 2019-10-12T05:16:58.98
IV.SSY.HHE. ML:2.0 0.0001822252 0.1024 AML other m 2019-10-12T05:16:55.44
IV.HLNI.HHE. ML:1.7 0.00004855391 0.1792 AML other m 2019-10-12T05:17:01.83
IV.HLNI.HHN. ML:1.6 0.00003941167 0.2624 AML other m 2019-10-12T05:17:00.85
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