INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.6 on date 20-02-2019 and time 06:17:18 (Italy) in region 5 km N Adrano (CT)

A magnitude ML 1.6 earthquake occured in region: 5 km N Adrano (CT), on

  • 20-02-2019 05:17:18 (UTC)
  • 20-02-2019 06:17:18 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.71, 14.83 at 8 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Adrano CT 5 36122 36122
Bronte CT 9 19172 55294
Biancavilla CT 9 24007 79301
Santa Maria di Licodia CT 12 7641 86942
Centuripe EN 12 5470 92412
Ragalna CT 13 3924 96336
Maletto CT 14 3920 100256
Paternò CT 16 48228 148484
Maniace CT 17 3765 152249
Regalbuto EN 18 7277 159526
Cesarò ME 18 2439 161965
Belpasso CT 19 28108 190073
San Teodoro ME 19 1403 191476
Catenanuova EN 20 4866 196342

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km W of Acireale (52622 inhabitants)
33 Km NW of Catania (314555 inhabitants)
72 Km E of Caltanissetta (63360 inhabitants)
83 Km NW of Siracusa (122291 inhabitants)
84 Km SW of Messina (238439 inhabitants)
84 Km SW of Reggio di Calabria (183035 inhabitants)
88 Km N of Ragusa (73313 inhabitants)
88 Km NE of Gela (75827 inhabitants)
88 Km N of Vittoria (63339 inhabitants)
95 Km N of Modica (54633 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.6 2019-02-20
05:17:18
37.71 14.83 8 2019-02-20
05:23:41
Sala Sismica INGV-Roma 65721061
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-20 05:17:18 ± 0.25
Latitude 37.71 ± 0.01
Longitude 14.83 ± 0.03
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 65721061

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2184
Semi-minor axis of confidence ellipse (meter) 568
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 84
Circular confidence region, given by single value of horizontal uncertainty (meter) 2180
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.58
Epicentral distance of station closest to the epicenter (degree) 0.10252
Epicentral distance of station farthest from the epicenter (degree) 0.36423
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 65721061
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-20 05:23:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.HLNI.HHZ. 2019-02-20T05:17:33.77 0.3 undecidable manual S 174 0.3642 50 1.15 49
IV.MUCR.HHZ. 2019-02-20T05:17:31.36 0.6 undecidable manual S 6 0.3336 50 -0.34 45
IV.HLNI.HHZ. 2019-02-20T05:17:26.28 0.6 undecidable manual P 174 0.3642 50 -0.44 43
IV.MUCR.HHZ. 2019-02-20T05:17:25.83 1.0 undecidable manual P 6 0.3336 50 -0.36 22
IV.EPZF.HHZ. 2019-02-20T05:17:25.86 0.3 undecidable manual S 12 0.1151 122 1.99 29
IV.ESML.HHZ. 2019-02-20T05:17:23.78 0.3 undecidable manual S 156 0.1025 125 0.32 70
IV.GALF.HHZ. 2019-02-20T05:17:23.37 0.1 undecidable manual P 270 0.205 109 -0.12 96
IV.EMSG.HHZ. 2019-02-20T05:17:21.81 1.0 undecidable manual P 42 0.1466 116 -0.47 23
IV.ESLN.HHZ. 2019-02-20T05:17:21.43 0.1 undecidable manual P 99 0.1187 121 -0.3 94
IV.EPZF.HHZ. 2019-02-20T05:17:21.67 0.1 undecidable manual P 12 0.1151 122 0 100
IV.ESML.HHZ. 2019-02-20T05:17:20.93 0.1 undecidable manual P 156 0.1025 125 -0.5 90
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ESML.HHE. ML:1.7 0.0006585 1.1 AML other m 2019-02-20T05:17:24.02
IV.ESML.HHN. ML:1.6 0.000486 0.72 AML other m 2019-02-20T05:17:25.21
IV.EPZF.HHN. ML:1.8 0.0007525 0.36 AML other m 2019-02-20T05:17:26.07
IV.EPZF.HHE. ML:1.8 0.0007185 0.36 AML other m 2019-02-20T05:17:27.21
IV.ESLN.HHN. ML:1.8 0.000677 0.92 AML other m 2019-02-20T05:17:28.51
IV.ESLN.HHE. ML:1.8 0.0007185 0.5 AML other m 2019-02-20T05:17:31.15
IV.GALF.HHE. ML:1.8 0.000373 0.48 AML other m 2019-02-20T05:17:31.68
IV.GALF.HHN. ML:1.7 0.000314 1.5 AML other m 2019-02-20T05:17:34.13
IV.MUCR.HHE. ML:1.1 4.945E-5 0.3 AML other m 2019-02-20T05:17:34.18
IV.HLNI.HHE. ML:1.3 7.575E-5 0.36 AML other m 2019-02-20T05:17:34.47
IV.HLNI.HHN. ML:1.1 4.11E-5 0.34 AML other m 2019-02-20T05:17:34.98
IV.MUCR.HHN. ML:1.3 6.98E-5 0.64 AML other m 2019-02-20T05:17:39.34
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