Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 15-02-2018 and time 15:39:23 (Italy) in region 7 km SE Randazzo (CT)

A magnitude ML 2.0 earthquake occured in region: 7 km SE Randazzo (CT), on

  • 15-02-2018 14:39:23 (UTC)
  • 15-02-2018 15:39:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.8260, 14.9800 at 27 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
Randazzo CT 7 10900 10900
Maletto CT 10 3920 14820
Santa Domenica Vittoria ME 10 980 15800
Moio Alcantara ME 10 717 16517
Roccella Valdemone ME 12 666 17183
Malvagna ME 12 733 17916
Bronte CT 14 19172 37088
Castiglione di Sicilia CT 14 3215 40303
Linguaglossa CT 15 5403 45706
Maniace CT 16 3765 49471
Francavilla di Sicilia ME 16 3945 53416
Milo CT 17 1087 54503
Sant'Alfio CT 17 1582 56085
Piedimonte Etneo CT 18 3963 60048
Zafferana Etnea CT 18 9517 69565
Motta Camastra ME 19 845 70410
Floresta ME 19 485 70895

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NW of Acireale (52622 inhabitants)
37 Km N of Catania (314555 inhabitants)
65 Km SW of Messina (238439 inhabitants)
66 Km SW of Reggio di Calabria (183035 inhabitants)
89 Km E of Caltanissetta (63360 inhabitants)
90 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 2018-02-15
14:39:23		 37.8258 14.9795 27 2019-04-24
14:49:19		 Bollettino Sismico Italiano INGV 54215361
Reviewed
Rev100 		ML 2.0 2018-02-15
14:39:23		 37.8598 14.9958 30 2018-02-15
14:46:52		 Sala Sismica INGV-Roma 53917861
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-02-15 14:39:23 ± 0.17
Latitude 37.8258 ± 0.0072
Longitude 14.9795 ± 0.0102
Depth (km) 27 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 54215361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 935
Semi-minor axis of confidence ellipse (meter) 306
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 61
Circular confidence region, given by single value of horizontal uncertainty (meter) 930.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 101
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.02428
Epicentral distance of station farthest from the epicenter (degree) 0.88223
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:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 54215361
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-02-28 08:43:48

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 53917861
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-02-15 14:46:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSY.HHE. 2018-02-15T14:39:46.63 0.6 undecidable manual S 174 74.5698 104 0.14 58
IV.SOI.EHN. 2018-02-15T14:39:40.81 0.6 undecidable manual P 73 97.9242 101 0.49 51
IV.HLNI.HHE. 2018-02-15T14:39:40.76 0.6 undecidable manual S 190 53.8017 111 -0.43 57
IV.RAFF.HHZ. 2018-02-15T14:39:38.74 0.3 undecidable manual P 219 86.1471 102 0.2 83
IV.CSLB.HHZ. 2018-02-15T14:39:38.82 0.6 undecidable manual P 279 81.6516 103 0.96 43
IV.MSFR.HHZ. 2018-02-15T14:39:37.98 0.6 undecidable manual S 304 41.0256 118 -0.1 62
IV.SSY.HHE. 2018-02-15T14:39:36.37 0.6 undecidable manual P 174 74.5698 104 -0.43 55
IV.MSRU.HHE. 2018-02-15T14:39:36.04 0.6 undecidable manual P 43 67.0773 106 0.36 56
IV.AIO.HHZ. 2018-02-15T14:39:35.27 0.6 undecidable manual S 54 27.4503 130 0.23 62
IV.NOV.HHE. 2018-02-15T14:39:34.40 0.6 undecidable manual S 32 26.2515 131 -0.41 59
IV.MUCR.HHZ. 2018-02-15T14:39:34.58 0.6 undecidable manual S 339 25.752 132 -0.13 63
IV.MPNC.HHE. 2018-02-15T14:39:33.07 0.6 undecidable manual P 42 48.3183 113 0.12 61
IV.HLNI.HHE. 2018-02-15T14:39:33.29 0.6 undecidable manual P 190 53.8017 111 -0.46 57
IV.GALF.HHZ. 2018-02-15T14:39:32.14 0.6 undecidable manual P 251 38.4282 119 0.55 56
IV.EMSG.HHZ. 2018-02-15T14:39:32.34 0.6 undecidable manual S 258 2.6973 174 0.6 60
IV.EPZF.HHZ. 2018-02-15T14:39:32.63 0.6 undecidable manual S 269 10.7781 156 0.33 63
IV.MSFR.HHZ. 2018-02-15T14:39:31.91 0.6 undecidable manual P 304 41.0256 118 -0.04 63
IV.AIO.HHZ. 2018-02-15T14:39:30.11 0.6 undecidable manual P 54 27.4503 130 -0.08 64
IV.MUCR.HHZ. 2018-02-15T14:39:29.54 0.3 undecidable manual P 339 25.752 132 -0.46 89
IV.NOV.HHE. 2018-02-15T14:39:29.72 0.6 undecidable manual P 32 26.2515 131 -0.34 61
IV.EPZF.HHZ. 2018-02-15T14:39:28.24 0.3 undecidable manual P 269 10.7781 156 -0.37 92
IV.EMSG.HHZ. 2018-02-15T14:39:28.23 0.3 undecidable manual P 258 2.6973 174 -0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EMSG.HHN. ML:2.3 0.0011407295 0.4032 AML other m 2018-02-15T14:39:32.50
IV.EMSG.HHE. ML:2.2 0.00087254705 0.2048 AML other m 2018-02-15T14:39:34.60
IV.EPZF.HHN. ML:2.1 0.0007086235 0.2624 AML other m 2018-02-15T14:39:33.76
IV.EPZF.HHE. ML:1.9 0.00039120015 0.416 AML other m 2018-02-15T14:39:33.70
IV.MUCR.HHN. ML:1.9 0.00032294495000000003 0.32 AML other m 2018-02-15T14:39:34.81
IV.MUCR.HHE. ML:1.7 0.0002027034 0.32 AML other m 2018-02-15T14:39:34.85
IV.AIO.HHE. ML:2.0 0.0003707011 0.3392 AML other m 2018-02-15T14:39:35.58
IV.AIO.HHN. ML:2.0 0.00039173295 0.2176 AML other m 2018-02-15T14:39:35.71
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