Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 15-02-2018 and time 13:47:57 (Italy) in region 7 km SE Randazzo (CT)

A magnitude ML 2.1 earthquake occured in region: 7 km SE Randazzo (CT), on

  • 15-02-2018 12:47:57 (UTC)
  • 15-02-2018 13:47:57 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.8250, 14.9850 at 26 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
Randazzo CT 7 10900 10900
Moio Alcantara ME 10 717 11617
Santa Domenica Vittoria ME 10 980 12597
Maletto CT 10 3920 16517
Malvagna ME 12 733 17250
Roccella Valdemone ME 12 666 17916
Castiglione di Sicilia CT 14 3215 21131
Bronte CT 14 19172 40303
Linguaglossa CT 14 5403 45706
Francavilla di Sicilia ME 16 3945 49651
Maniace CT 16 3765 53416
Milo CT 16 1087 54503
Sant'Alfio CT 17 1582 56085
Piedimonte Etneo CT 17 3963 60048
Zafferana Etnea CT 18 9517 69565
Motta Camastra ME 18 845 70410
Floresta ME 19 485 70895
Fiumefreddo di Sicilia CT 20 9623 80518
Mascali CT 20 14282 94800

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 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)
89 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 2.1 2018-02-15
12:47:57		 37.8248 14.9852 26 2019-04-24
14:49:19		 Bollettino Sismico Italiano INGV 54197451
Reviewed
Rev100 		ML 2.0 2018-02-15
12:47:57		 37.8613 14.9758 28 2018-02-15
12:54:24		 Sala Sismica INGV-Roma 53916691
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-02-15 12:47:57 ± 0.19
Latitude 37.8248 ± 0.0072
Longitude 14.9852 ± 0.0102
Depth (km) 26 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 54197451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 972
Semi-minor axis of confidence ellipse (meter) 566
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 116
Circular confidence region, given by single value of horizontal uncertainty (meter) 970.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 61
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.02788
Epicentral distance of station farthest from the epicenter (degree) 0.88044
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
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 53916691
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-02-15 12:54:24

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 7
Type of magnitude ML
Reference to an origin 54197451
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-02-27 10:49:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HMDC.HHZ. 2018-02-15T12:48:26.82 0.6 undecidable manual S 191 97.7244 100 0.08 83
IV.SSY.HHE. 2018-02-15T12:48:20.56 0.6 undecidable manual S 174 74.4699 103 -0.1 87
IV.HMDC.HHZ. 2018-02-15T12:48:15.03 0.6 undecidable manual P 191 97.7244 100 0.49 76
IV.HLNI.HHE. 2018-02-15T12:48:14.87 0.6 undecidable manual S 191 53.8017 109 -0.5 83
IV.SOI.EHN. 2018-02-15T12:48:14.68 0.6 undecidable manual P 73 97.5246 100 0.17 82
IV.MPNC.HHZ. 2018-02-15T12:48:14.56 0.6 undecidable manual S 42 48.0186 112 0.63 79
IV.CSLB.HHZ. 2018-02-15T12:48:13.00 0.6 undecidable manual P 279 82.1511 102 0.82 69
IV.RAFF.HHZ. 2018-02-15T12:48:12.85 0.6 undecidable manual P 220 86.4468 101 0.02 86
IV.SSY.HHE. 2018-02-15T12:48:10.61 0.6 undecidable manual P 174 74.4699 103 -0.41 81
IV.MSRU.HHE. 2018-02-15T12:48:10.02 0.6 undecidable manual P 43 66.7776 105 0.14 88
IV.AIO.HHZ. 2018-02-15T12:48:09.44 0.6 undecidable manual S 53 27.0507 128 0.38 89
IV.MUCR.HHZ. 2018-02-15T12:48:08.58 0.6 undecidable manual S 338 26.0517 130 -0.27 92
IV.NOV.HHZ. 2018-02-15T12:48:08.47 0.6 undecidable manual S 30 26.1516 130 -0.39 90
IV.MPNC.HHZ. 2018-02-15T12:48:07.05 0.6 undecidable manual P 42 48.0186 112 -0.09 92
IV.HLNI.HHE. 2018-02-15T12:48:07.52 0.6 undecidable manual P 191 53.8017 109 -0.45 84
IV.EPZF.HHZ. 2018-02-15T12:48:06.60 0.6 undecidable manual S 270 11.1777 154 0.24 94
IV.GALF.HHZ. 2018-02-15T12:48:06.23 0.6 undecidable manual P 251 38.8278 118 0.38 87
IV.MSFR.HHZ. 2018-02-15T12:48:06.03 0.6 undecidable manual P 304 41.5251 116 -0.19 91
IV.ESML.HHZ. 2018-02-15T12:48:04.70 0.6 undecidable manual P 202 24.753 131 0.65 82
IV.AIO.HHZ. 2018-02-15T12:48:04.17 0.6 undecidable manual P 53 27.0507 128 -0.16 94
IV.EPOZ.HHN. 2018-02-15T12:48:04.38 0.6 undecidable manual P 134 24.6531 131 0.34 90
IV.MUCR.HHZ. 2018-02-15T12:48:03.64 0.6 undecidable manual P 338 26.0517 130 -0.57 86
IV.NOV.HHZ. 2018-02-15T12:48:03.84 0.6 undecidable manual P 30 26.1516 130 -0.37 90
IV.EPZF.HHZ. 2018-02-15T12:48:02.34 0.6 undecidable manual P 270 11.1777 154 -0.43 91
IV.EMSG.HHZ. 2018-02-15T12:48:02.34 0.6 undecidable manual P 262 3.0969 172 -0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EPZF.HHN. ML:2.2 0.0009078085499999999 0.3584 AML other m 2018-02-15T12:48:07.62
IV.EPZF.HHE. ML:1.9 0.00048246060000000003 0.256 AML other m 2018-02-15T12:48:08.11
IV.EMSG.HHN. ML:2.4 0.0015467089999999998 0.2816 AML other m 2018-02-15T12:48:06.58
IV.MUCR.HHN. ML:1.9 0.0003326423 0.32 AML other m 2018-02-15T12:48:09.05
IV.MUCR.HHE. ML:2.0 0.00037150355 0.4608 AML other m 2018-02-15T12:48:08.95
IV.NOV.HHN. ML:2.1 0.0005587545 0.3008 AML other m 2018-02-15T12:48:10.57
IV.NOV.HHE. ML:2.3 0.0007687153 0.2816 AML other m 2018-02-15T12:48:08.74
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