Earthquake with magnitude of ML 1.8 on date 11-10-2019 and time 04:27:50 (Italy) in region 8 km S Floridia (SR)

A magnitude ML 1.8 earthquake occured in region: 8 km S Floridia (SR), on

  • 11-10-2019 02:27:50 (UTC)
  • 11-10-2019 04:27:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.02, 15.17 at 24 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.

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 8 22762 22762
Canicattini Bagni SR 10 7109 29871
Solarino SR 11 8091 37962
Avola SR 12 31708 69670
Siracusa SR 13 122291 191961
Noto SR 16 23913 215874
Priolo Gargallo SR 16 12091 227965
Melilli SR 19 13621 241586

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km W of Siracusa (122291 inhabitants)
40 Km E of Ragusa (73313 inhabitants)
40 Km E of Modica (54633 inhabitants)
55 Km S of Catania (314555 inhabitants)
56 Km E of Vittoria (63339 inhabitants)
67 Km S of Acireale (52622 inhabitants)
81 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 1.8 2019-10-11
02:27:50
37.02 15.17 25 2020-02-28
16:41:57
Bollettino Sismico Italiano INGV 73369771
Reviewed
Rev100
ML 1.6 2019-10-11
02:27:51
37.02 15.13 7 2019-10-11
02:35:39
Sala Sismica INGV-Roma 73187501
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-11 02:27:50 ± 0.18
Latitude 37.02 ± 0.01
Longitude 15.17 ± 0.01
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 73369771

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1079
Semi-minor axis of confidence ellipse (meter) 402
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 104
Circular confidence region, given by single value of horizontal uncertainty (meter) 1080
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 174
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.40739
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 73369771
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-10-21 08:32:40

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 73187501
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-11 02:35:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.LPDG.HHZ. 2019-10-11T02:28:55.26 3.0 undecidable manual Sn -3.83 0
IV.CRJA.HHZ. 2019-10-11T02:28:20.08 3.0 negative manual Pn 0.37 0
IV.HVZN.HNZ. 2019-10-11T02:28:06.54 0.6 undecidable manual S 295 0.3939 112 0.74 41
IV.HLNI.HHZ. 2019-10-11T02:28:06.09 0.3 undecidable manual S 325 0.4074 112 -0.06 72
IT.LNT.HGZ. 2019-10-11T02:28:03.23 0.3 undecidable manual S 335 0.3031 120 -0.12 72
IV.HPAC.HHZ. 2019-10-11T02:28:03.88 0.3 undecidable manual S 199 0.3229 118 -0.01 74
IV.ISPIC.EHZ. 2019-10-11T02:28:03.41 0.3 undecidable manual S 222 0.3148 118 -0.25 70
IV.HAGA.HHZ. 2019-10-11T02:28:02.56 0.3 undecidable manual S 358 0.2698 123 0.03 75
IV.AGST.EHZ. 2019-10-11T02:28:01.39 0.3 undecidable manual S 11 0.2464 126 -0.56 66
IT.PPL1.HGN. 2019-10-11T02:27:59.04 0.3 undecidable manual P 185 0.3301 117 0.52 67
IV.HVZN.HNZ. 2019-10-11T02:27:59.53 0.1 undecidable manual P 295 0.3939 112 0.01 98
IV.HLNI.HHZ. 2019-10-11T02:27:59.57 0.1 undecidable manual P 325 0.4074 112 -0.15 95
IV.SSY.HNN. 2019-10-11T02:27:59.98 0.6 undecidable manual S 333 0.1601 140 -0.09 50
IV.ISPIC.EHZ. 2019-10-11T02:27:58.00 0.1 undecidable manual P 222 0.3148 118 -0.28 94
IT.LNT.HGZ. 2019-10-11T02:27:58.22 0.1 undecidable manual P 335 0.3031 120 0.11 98
IV.HPAC.HHZ. 2019-10-11T02:27:58.35 0.3 undecidable manual P 199 0.3229 118 -0.06 74
IV.HAGA.HHZ. 2019-10-11T02:27:57.75 0.1 undecidable manual P 358 0.2698 123 0.12 98
IV.AGST.EHZ. 2019-10-11T02:27:57.37 0.1 undecidable manual P 11 0.2464 126 0.08 100
IV.SSY.HNN. 2019-10-11T02:27:56.37 0.1 undecidable manual P 333 0.1601 140 0.16 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.AGST.EHN. ML:2 0.0003675 0.6 AML other m 2019-10-11T02:28:02.42
IV.AGST.EHE. ML:1.7 0.0002212751 0.64 AML other m 2019-10-11T02:28:02.52
IV.HAGA.HHN. ML:1.6 0.0001560148 0.24 AML other m 2019-10-11T02:28:03.50
IV.HAGA.HHE. ML:1.7 0.00017765465 0.08 AML other m 2019-10-11T02:28:04.27
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download