Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 04-05-2019 and time 10:14:17 (Italy) in region 8 km W Motta Sant'Anastasia (CT)

A magnitude ML 1.9 earthquake occured in region: 8 km W Motta Sant'Anastasia (CT), on

  • 04-05-2019 08:14:17 (UTC)
  • 04-05-2019 10:14:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.4810, 14.8890 at 11 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
Motta Sant'Anastasia CT 8 12116 12116
Paternò CT 11 48228 60344
Misterbianco CT 11 49410 109754
Camporotondo Etneo CT 14 5023 114777
Belpasso CT 15 28108 142885
Santa Maria di Licodia CT 15 7641 150526
San Pietro Clarenza CT 16 7743 158269
Ragalna CT 17 3924 162193
Catania CT 18 314555 476748
Mascalucia CT 18 31958 508706
Gravina di Catania CT 18 25838 534544
Biancavilla CT 18 24007 558551
Sant'Agata li Battiati CT 19 9479 568030
Nicolosi CT 19 7463 575493
Tremestieri Etneo CT 19 20589 596082
Catenanuova EN 20 4866 600948

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km W of Catania (314555 inhabitants)
29 Km SW of Acireale (52622 inhabitants)
59 Km NW of Siracusa (122291 inhabitants)
63 Km N of Ragusa (73313 inhabitants)
67 Km NE of Vittoria (63339 inhabitants)
70 Km N of Modica (54633 inhabitants)
73 Km NE of Gela (75827 inhabitants)
73 Km E of Caltanissetta (63360 inhabitants)
96 Km SW of Reggio di Calabria (183035 inhabitants)
99 Km SW of Messina (238439 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 1.9 2019-05-04
08:14:17		 37.4812 14.8888 11 2019-11-13
14:31:07		 Bollettino Sismico Italiano INGV 73381541
Reviewed
Rev100 		ML 1.9 2019-05-04
08:14:17		 37.4847 14.8795 11 2019-05-04
08:22:36		 Sala Sismica INGV-Roma 68240661
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-05-04 08:14:17 ± 0.11
Latitude 37.4812 ± 0.0045
Longitude 14.8888 ± 0.0125
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 73381541

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1033
Semi-minor axis of confidence ellipse (meter) 289
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 259
Circular confidence region, given by single value of horizontal uncertainty (meter) 1030.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 90
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
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) 0.13310
Epicentral distance of station farthest from the epicenter (degree) 0.52880
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 17
Type of magnitude ML
Reference to an origin 68240661
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-05-04 08:22:36

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 17
Type of magnitude ML
Reference to an origin 73381541
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-10-21 23:26:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSY.HHZ. 2019-05-04T08:14:31.28 0.6 undecidable manual S 155 39.4272 50 0.7 40
IV.AGST.EHZ. 2019-05-04T08:14:30.57 0.3 undecidable manual S 130 38.8278 50 0.13 71
IV.HAGA.HHE. 2019-05-04T08:14:28.86 0.6 undecidable manual S 133 32.0457 50 0.25 47
IV.ESLN.HHZ. 2019-05-04T08:14:27.15 0.3 undecidable manual S 18 24.753 50 0.49 67
IV.HMDC.HHZ. 2019-05-04T08:14:27.51 0.1 undecidable manual P 189 58.6968 50 -0.51 84
IT.LNT.HGE. 2019-05-04T08:14:26.74 0.6 undecidable manual S 155 23.5542 50 0.38 46
IV.CAGR.HHZ. 2019-05-04T08:14:25.05 0.1 undecidable manual P 295 37.629 50 0.27 92
IV.EPZF.HHZ. 2019-05-04T08:14:25.27 0.6 undecidable manual P 356 38.1285 50 0.41 45
IV.EPOZ.HHE. 2019-05-04T08:14:24.29 0.3 undecidable manual P 51 33.8439 50 0.1 72
IV.GALF.HHZ. 2019-05-04T08:14:24.78 0.1 undecidable manual P 312 38.1285 50 -0.07 96
IV.AGST.EHZ. 2019-05-04T08:14:24.43 0.1 undecidable manual P 130 38.8278 50 -0.54 86
IV.EMSG.HHZ. 2019-05-04T08:14:24.98 0.3 undecidable manual P 8 38.0286 50 0.13 71
IV.SSY.HHZ. 2019-05-04T08:14:24.80 0.1 undecidable manual P 155 39.4272 50 -0.26 92
IV.HVZN.HNE. 2019-05-04T08:14:24.43 0.3 undecidable manual P 205 36.9297 50 -0.24 70
IV.HLNI.HHZ. 2019-05-04T08:14:24.59 0.3 undecidable manual S 186 14.7741 126 0.76 62
IV.ESML.HHZ. 2019-05-04T08:14:23.52 0.6 undecidable manual S 357 15.1737 125 -0.43 46
IV.HAGA.HHE. 2019-05-04T08:14:23.63 0.3 undecidable manual P 133 32.0457 50 -0.28 70
IT.LNT.HGE. 2019-05-04T08:14:22.26 0.3 undecidable manual P 155 23.5542 50 -0.36 69
IV.ESLN.HHZ. 2019-05-04T08:14:22.73 0.1 undecidable manual P 18 24.753 50 -0.06 98
IV.ESML.HHZ. 2019-05-04T08:14:21.11 0.6 undecidable manual P 357 15.1737 125 -0.12 49
IV.HLNI.HHZ. 2019-05-04T08:14:21.22 0.1 undecidable manual P 186 14.7741 126 0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HLNI.HHN. ML:2.1 0.0013234119999999997 0.1024 AML other m 2019-05-04T08:14:24.78
IV.HLNI.HHE. ML:2.1 0.001201118 0.0832 AML other m 2019-05-04T08:14:25.19
IV.ESML.HHN. ML:1.7 0.0005025123 0.16 AML other m 2019-05-04T08:14:25.36
IV.ESML.HHE. ML:1.7 0.00042896869999999997 0.16 AML other m 2019-05-04T08:14:27.92
IV.ESLN.HHN. ML:1.8 0.00041007085 0.2432 AML other m 2019-05-04T08:14:28.04
IV.ESLN.HHE. ML:1.9 0.00044369785 0.2176 AML other m 2019-05-04T08:14:29.59
IV.AGST.EHN. ML:2.2 0.0005924023 0.32 AML other m 2019-05-04T08:14:30.83
IV.AGST.EHE. ML:2.2 0.0005717881 0.1152 AML other m 2019-05-04T08:14:31.55
IV.GALF.HHE. ML:1.6 0.000128075175 1.7824 AML other m 2019-05-04T08:14:31.96
IV.EPZF.HHE. ML:1.6 0.000136164125 0.32 AML other m 2019-05-04T08:14:33.66
IV.EPZF.HHN. ML:1.8 0.0002074043 0.3584 AML other m 2019-05-04T08:14:34.12
IV.GALF.HHN. ML:1.9 0.0002758809 0.4608 AML other m 2019-05-04T08:14:34.00
IV.EMSG.HHE. ML:2.1 0.00042189835 0.5632 AML other m 2019-05-04T08:14:34.76
IV.EMSG.HHN. ML:2.0 0.00035391495 1.4368 AML other m 2019-05-04T08:14:35.17
IV.CAGR.HHN. ML:1.6 0.00014053969999999999 0.3968 AML other m 2019-05-04T08:14:37.43
IV.HMDC.HHE. ML:1.9 0.00018396269999999997 0.2176 AML other m 2019-05-04T08:14:37.36
IV.CAGR.HHE. ML:1.7 0.00018048504999999997 0.6592 AML other m 2019-05-04T08:14:39.53
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