Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 17-04-2019 and time 11:35:14 (UTC) in region 3 km N Sant'Alfio (CT)

A magnitude ML 2.0 earthquake occured in region: 3 km N Sant'Alfio (CT), on

  • 17-04-2019 11:35:14 (UTC)
  • 17-04-2019 13:35:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7730, 15.1540 at 7 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Sant'Alfio CT 3 1582 1582
Mascali CT 4 14282 15864
Piedimonte Etneo CT 5 3963 19827
Fiumefreddo di Sicilia CT 5 9623 29450
Giarre CT 5 27659 57109
Milo CT 6 1087 58196
Riposto CT 6 14838 73034
Linguaglossa CT 8 5403 78437
Calatabiano CT 9 5308 83745
Santa Venerina CT 10 8592 92337
Zafferana Etnea CT 10 9517 101854
Gaggi ME 12 3184 105038
Castiglione di Sicilia CT 13 3215 108253
Giardini-Naxos ME 13 9415 117668
Motta Camastra ME 14 845 118513
Taormina ME 14 10960 129473
Francavilla di Sicilia ME 14 3945 133418
Castelmola ME 15 1088 134506
Graniti ME 15 1492 135998
Moio Alcantara ME 17 717 136715
Acireale CT 18 52622 189337
Letojanni ME 18 2861 192198
Mongiuffi Melia ME 18 600 192798
Trecastagni CT 18 10910 203708
Malvagna ME 19 733 204441
Aci Sant'Antonio CT 19 17984 222425
Viagrande CT 19 8563 230988
Aci Catena CT 19 29851 260839
Gallodoro ME 19 367 261206
Pedara CT 19 14102 275308
Aci Bonaccorsi CT 20 3524 278832

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km N of Acireale (52622 inhabitants)
31 Km N of Catania (314555 inhabitants)
57 Km SW of Reggio di Calabria (183035 inhabitants)
59 Km SW of Messina (238439 inhabitants)
80 Km N of Siracusa (122291 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 2019-04-17
11:35:14		 37.7732 15.1537 7 2019-08-22
08:24:58		 Bollettino Sismico Italiano INGV 68122941
Reviewed
Rev100 		ML 2.1 2019-04-17
11:35:14		 37.7778 15.1573 7 2019-04-17
11:40:28		 Sala Sismica INGV-Roma 67675171
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-04-17 11:35:14 ± 0.1
Latitude 37.7732 ± 0.0045
Longitude 15.1537 ± 0.0068
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 68122941

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 512
Semi-minor axis of confidence ellipse (meter) 385
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 230
Circular confidence region, given by single value of horizontal uncertainty (meter) 510.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 142
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.08544
Epicentral distance of station farthest from the epicenter (degree) 0.46855
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 11
Type of magnitude ML
Reference to an origin 68122941
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-04-30 14:02:09

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 67675171
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-04-17 11:40:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GALF.HHZ. 2019-04-17T11:35:25.20 0.6 positive manual P 263 52.0035 50 0.42 43
IV.EPZF.HHE. 2019-04-17T11:35:24.60 0.6 undecidable manual S 282 26.5512 104 0.26 46
IV.MPNC.HHN. 2019-04-17T11:35:23.45 0.6 undecidable manual P 23 44.9217 50 -0.25 45
IV.MNO.SHZ. 2019-04-17T11:35:23.64 0.3 undecidable manual P 294 43.8228 50 0.12 70
IV.MUCR.HHZ. 2019-04-17T11:35:22.43 0.6 undecidable manual P 321 38.628 100 -0.25 45
IV.ENIC.HHE. 2019-04-17T11:35:21.79 0.6 undecidable manual S 216 19.5693 109 -0.21 47
IV.EMSG.HHZ. 2019-04-17T11:35:21.50 0.3 undecidable manual S 287 18.6702 110 -0.2 71
IV.EPZF.HHE. 2019-04-17T11:35:20.08 0.3 undecidable manual P 282 26.5512 104 -0.24 70
IV.NOV.HHZ. 2019-04-17T11:35:20.77 0.3 undecidable manual P 357 28.2495 104 0.13 71
IV.EPOZ.HHZ. 2019-04-17T11:35:19.50 0.3 undecidable manual S 165 11.6772 120 0 75
IV.EMCN.HNE. 2019-04-17T11:35:19.70 0.3 undecidable manual S 281 10.6782 123 0.48 68
IV.ECHR.HHE. 2019-04-17T11:35:19.44 0.6 undecidable manual P 246 23.2545 106 -0.22 47
IV.EMSG.HHZ. 2019-04-17T11:35:18.78 0.3 undecidable manual P 287 18.6702 110 -0.01 74
IV.EPIT.HHN. 2019-04-17T11:35:18.78 0.3 undecidable manual S 296 9.4794 126 -0.09 74
IV.ENIC.HHE. 2019-04-17T11:35:18.75 0.6 undecidable manual P 216 19.5693 109 -0.21 47
IV.EPOZ.HHZ. 2019-04-17T11:35:17.72 0.1 positive manual P 165 11.6772 120 0.2 96
IV.EPIT.HHN. 2019-04-17T11:35:17.19 0.1 undecidable manual P 296 9.4794 126 0.04 100
IV.EMCN.HNE. 2019-04-17T11:35:17.17 0.3 undecidable manual P 281 10.6782 123 -0.19 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EPOZ.HHE. ML:2.4 0.0034284299999999997 0.2816 AML other m 2019-04-17T11:35:24.91
IV.EPOZ.HHN. ML:2.4 0.0035617325000000003 0.384 AML other m 2019-04-17T11:35:23.71
IV.EMSG.HHN. ML:2.1 0.00119735105 0.3008 AML other m 2019-04-17T11:35:27.19
IV.EMSG.HHE. ML:2.1 0.0011920935 0.3776 AML other m 2019-04-17T11:35:24.73
IV.NOV.HHN. ML:2.0 0.00049150805 0.4032 AML other m 2019-04-17T11:35:28.42
IV.NOV.HHE. ML:2.0 0.0005695505000000001 0.384 AML other m 2019-04-17T11:35:30.77
IV.MUCR.HHN. ML:1.6 0.00012856410000000002 0.5632 AML other m 2019-04-17T11:35:36.06
IV.MUCR.HHE. ML:1.5 0.00012617909999999998 0.4352 AML other m 2019-04-17T11:35:33.97
IV.MNO.SHN. ML:0.0 0.0001687058 0.5184 AML other m 2019-04-17T11:35:33.02
IV.MNO.SHE. ML:0.0 0.00014927459999999998 0.7552 AML other m 2019-04-17T11:35:36.34
IV.GALF.HHE. ML:2.0 0.00023571239999999998 0.4416 AML other m 2019-04-17T11:35:40.99
IV.GALF.HNE. ML:1.6 0.00010470744 0.8704 AML other m 2019-04-17T11:35:46.15
IV.GALF.HHN. ML:2.0 0.0002647176 0.48 AML other m 2019-04-17T11:35:41.73
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