Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 09-04-2019 and time 05:02:04 (Italy) in region 6 km SE Bronte (CT)

A magnitude ML 1.6 earthquake occured in region: 6 km SE Bronte (CT), on

  • 09-04-2019 03:02:04 (UTC)
  • 09-04-2019 05:02:04 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7360, 14.8600 at 9 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
Bronte CT 6 19172 19172
Adrano CT 8 36122 55294
Biancavilla CT 10 24007 79301
Maletto CT 11 3920 83221
Santa Maria di Licodia CT 13 7641 90862
Ragalna CT 14 3924 94786
Maniace CT 15 3765 98551
Centuripe EN 16 5470 104021
Randazzo CT 18 10900 114921
Cesarò ME 18 2439 117360
Paternò CT 18 48228 165588
San Teodoro ME 19 1403 166991
Belpasso CT 19 28108 195099
Nicolosi CT 20 7463 202562

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km W of Acireale (52622 inhabitants)
33 Km NW of Catania (314555 inhabitants)
75 Km E of Caltanissetta (63360 inhabitants)
80 Km SW of Messina (238439 inhabitants)
80 Km SW of Reggio di Calabria (183035 inhabitants)
84 Km NW of Siracusa (122291 inhabitants)
91 Km N of Ragusa (73313 inhabitants)
92 Km NE of Gela (75827 inhabitants)
92 Km N of Vittoria (63339 inhabitants)
98 Km N of Modica (54633 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 1.6 2019-04-09
03:02:04		 37.7355 14.8605 9 2019-08-22
08:25:06		 Bollettino Sismico Italiano INGV 69871951
Reviewed
Rev100 		ML 1.6 2019-04-09
03:02:04		 37.7357 14.8805 8 2019-04-09
03:25:05		 Sala Sismica INGV-Roma 67394821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-04-09 03:02:04 ± 0.11
Latitude 37.7355 ± 0.0063
Longitude 14.8605 ± 0.0068
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 69871951

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 654
Semi-minor axis of confidence ellipse (meter) 293
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 346
Circular confidence region, given by single value of horizontal uncertainty (meter) 650.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 69
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.08813
Epicentral distance of station farthest from the epicenter (degree) 0.38671
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 67394821
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-04-09 03:25:05

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 69871951
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-06-24 14:40:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ECTS.EHE. 2019-04-09T03:02:15.29 0.3 undecidable manual S 54 28.0497 108 0.37 72
IV.GALF.HHZ. 2019-04-09T03:02:14.15 0.3 undecidable manual S 264 25.9518 109 -0.08 77
IV.MSFR.HHE. 2019-04-09T03:02:13.05 0.3 undecidable manual P 325 40.626 50 0.4 71
IV.AIO.HHE. 2019-04-09T03:02:13.01 0.6 undecidable manual P 51 41.8248 50 0.17 50
IV.HLNI.HHE. 2019-04-09T03:02:12.95 0.3 undecidable manual P 179 42.9237 50 -0.06 72
IV.ENIC.HHE. 2019-04-09T03:02:12.18 0.3 undecidable manual S 129 18.2706 116 0.41 72
IV.CAGR.HHE. 2019-04-09T03:02:12.47 0.1 undecidable manual P 248 34.0437 50 0.82 83
IV.EMCN.HNE. 2019-04-09T03:02:11.28 0.6 undecidable manual S 68 16.3725 119 0.09 51
IV.MUCR.HHZ. 2019-04-09T03:02:11.34 0.1 undecidable manual P 2 34.1436 50 -0.31 93
IV.GALF.HHZ. 2019-04-09T03:02:10.38 0.6 undecidable manual P 264 25.9518 109 0.17 49
IV.EMSG.HHZ. 2019-04-09T03:02:10.48 0.3 undecidable manual S 40 12.2766 126 0.5 70
IV.ECTS.EHE. 2019-04-09T03:02:10.58 0.3 undecidable manual P 54 28.0497 108 -0.02 76
IV.EPZF.HHZ. 2019-04-09T03:02:09.23 0.6 undecidable manual S 358 9.7791 132 -0.09 53
IV.ESLN.HHZ. 2019-04-09T03:02:09.95 0.6 undecidable manual S 115 10.9779 129 0.31 49
IV.EMCN.HNE. 2019-04-09T03:02:08.18 0.1 undecidable manual P 68 16.3725 119 -0.27 99
IV.ENIC.HHE. 2019-04-09T03:02:08.61 0.6 undecidable manual P 129 18.2706 116 -0.17 50
IV.EPZF.HHZ. 2019-04-09T03:02:07.04 0.1 undecidable manual P 358 9.7791 132 -0.33 100
IV.EMSG.HHZ. 2019-04-09T03:02:07.45 0.1 undecidable manual P 40 12.2766 126 -0.3 99
IV.ESLN.HHZ. 2019-04-09T03:02:07.22 0.1 undecidable manual P 115 10.9779 129 -0.34 99
IV.ESML.HHZ. 2019-04-09T03:02:07.48 0.1 undecidable manual P 173 13.0758 124 -0.41 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EMSG.HHE. ML:1.8 0.0006972049 0.36 AML other m 2019-04-09T03:02:10.71
IV.EPZF.HHN. ML:1.6 0.0006339999999999999 0.3 AML other m 2019-04-09T03:02:11.49
IV.ESLN.HHN. ML:1.5 0.0004125956 0.36 AML other m 2019-04-09T03:02:13.32
IV.ESLN.HHE. ML:1.6 0.00047357479999999994 0.24 AML other m 2019-04-09T03:02:13.93
IV.EPZF.HHE. ML:1.6 0.000533 0.4 AML other m 2019-04-09T03:02:14.39
IV.ESML.HHE. ML:1.4 0.00030797715 0.4992 AML other m 2019-04-09T03:02:14.78
IV.EMSG.HHN. ML:1.7 0.00055983105 0.4 AML other m 2019-04-09T03:02:15.60
IV.ESML.HHN. ML:1.3 0.00020180055 0.5392 AML other m 2019-04-09T03:02:15.41
IV.GALF.HHN. ML:1.8 0.00034923930000000004 1.5808 AML other m 2019-04-09T03:02:19.84
IV.GALF.HHE. ML:1.6 0.00023321664999999996 0.3392 AML other m 2019-04-09T03:02:21.25
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