Earthquake with magnitude of ML 1.7 on date 11-12-2018 and time 00:04:54 (UTC) in region 5 km S Randazzo (CT)

A magnitude ML 1.7 earthquake occured in region: 5 km S Randazzo (CT), on

  • 11-12-2018 00:04:54 (UTC)
  • 11-12-2018 01:04:54 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.83, 14.93 at 30 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.

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 5 10900 10900
Maletto CT 6 3920 14820
Bronte CT 10 19172 33992
Santa Domenica Vittoria ME 10 980 34972
Maniace CT 11 3765 38737
Moio Alcantara ME 13 717 39454
Roccella Valdemone ME 13 666 40120
Malvagna ME 15 733 40853
Floresta ME 18 485 41338
Castiglione di Sicilia CT 18 3215 44553
Linguaglossa CT 19 5403 49956
CesarĂ² ME 19 2439 52395
Francavilla di Sicilia ME 20 3945 56340

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km NW of Acireale (52622 inhabitants)
39 Km NW of Catania (314555 inhabitants)
68 Km SW of Messina (238439 inhabitants)
70 Km W of Reggio di Calabria (183035 inhabitants)
85 Km E of Caltanissetta (63360 inhabitants)
92 Km NW 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
Rev 1000 ML 1.7 2018-12-11
00:04:54
37.83 14.93 30 2019-06-04
09:16:07
Bollettino Sismico Italiano INGV 64839721
Rev 100 ML 1.8 2018-12-11
00:04:54
37.83 14.93 30 2018-12-11
00:14:34
Sala Sismica INGV-Roma 63823291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-12-11 00:04:54 ± 0.2
Latitude 37.83 ± 0.01
Longitude 14.93 ± 0.01
Depth (km) 30 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 64839721

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1102
Semi-minor axis of confidence ellipse (meter) 557
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 78
Circular confidence region, given by single value of horizontal uncertainty (meter) 1100
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
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) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.01889
Epicentral distance of station farthest from the epicenter (degree) 0.68348
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 64839721
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-01-21 12:16:42

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 63823291
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-12-11 00:14:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.HAGA.HHZ. 2018-12-11T00:05:14.90 0.3 undecidable manual S 162 0.5747 110 -0.16 69
IV.HLNI.HHZ. 2018-12-11T00:05:12.55 0.3 undecidable manual S 185 0.4856 114 -0.04 72
IV.SSY.HHZ. 2018-12-11T00:05:08.04 0.6 undecidable manual P 170 0.6835 106 -0.17 45
IV.AIO.HHZ. 2018-12-11T00:05:07.49 0.3 undecidable manual S 60 0.2761 130 0.2 72
IV.HAGA.HHZ. 2018-12-11T00:05:06.30 0.1 undecidable manual P 162 0.5747 110 -0.14 92
IV.MUCR.HHZ. 2018-12-11T00:05:05.79 0.3 undecidable manual S 348 0.2158 138 -0.2 72
IV.HLNI.HHZ. 2018-12-11T00:05:04.93 0.3 undecidable manual P 185 0.4856 114 -0.09 71
IV.EMCN.HNZ. 2018-12-11T00:05:03.89 0.3 undecidable manual S 116 0.0908 160 -0.15 75
IV.GALF.HHZ. 2018-12-11T00:05:03.10 0.6 undecidable manual P 247 0.3121 126 0.66 42
IV.EMSG.HHZ. 2018-12-11T00:05:03.91 0.3 undecidable manual S 126 0.0189 176 0.33 74
IV.EPZF.HHZ. 2018-12-11T00:05:03.71 0.3 undecidable manual S 262 0.0585 167 -0.05 77
IV.AIO.HHZ. 2018-12-11T00:05:02.08 0.3 undecidable manual P 60 0.2761 130 0.12 73
IV.EPOZ.HHZ. 2018-12-11T00:05:01.95 0.3 undecidable manual P 128 0.259 132 0.21 72
IV.MUCR.HHZ. 2018-12-11T00:05:01.05 0.3 undecidable manual P 348 0.2158 138 -0.16 73
IV.ESML.HHN. 2018-12-11T00:05:01.82 0.3 undecidable manual P 191 0.2176 137 0.59 66
IV.EMCN.HNZ. 2018-12-11T00:05:00.04 0.3 undecidable manual P 116 0.0908 160 -0.04 77
IV.EPZF.HHZ. 2018-12-11T00:04:59.67 0.1 positive manual P 262 0.0585 167 -0.25 99
IV.EMSG.HHZ. 2018-12-11T00:04:59.59 0.1 positive manual P 126 0.0189 176 -0.22 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EMSG.HHN. ML:2.1 0.0007371887 0.54 AML other m 2018-12-11T00:05:06.01
IV.EMSG.HHE. ML:2.2 0.00074947675 0.74 AML other m 2018-12-11T00:05:11.48
IV.EPZF.HHN. ML:2.1 0.0006515815 0.26 AML other m 2018-12-11T00:05:04.16
IV.EPZF.HHE. ML:1.9 0.0004164235 0.26 AML other m 2018-12-11T00:05:04.84
IV.MUCR.HHN. ML:1.7 0.0001852721 0.46 AML other m 2018-12-11T00:05:06.56
IV.MUCR.HHE. ML:1.8 0.0002610894 0.38 AML other m 2018-12-11T00:05:06.29
IV.GALF.HNE. ML:1.6 0.0001234972 0.6 AML other m 2018-12-11T00:05:09.88
IV.GALF.HNN. ML:1.7 0.0001521658 0.77 AML other m 2018-12-11T00:05:16.13
IV.GALF.HHE. ML:1.7 0.0001545907 0.44 AML other m 2018-12-11T00:05:12.11
IV.GALF.HHN. ML:1.6 0.000117920755 0.5 AML other m 2018-12-11T00:05:12.02
IV.HLNI.HHE. ML:1.3 4.1596675E-5 0.1 AML other m 2018-12-11T00:05:13.96
IV.HLNI.HHN. ML:1.6 7.4272925E-5 1.18 AML other m 2018-12-11T00:05:10.25
IV.HAGA.HHE. ML:1.9 0.00012030497 0.82 AML other m 2018-12-11T00:05:22.99
IV.HAGA.HHN. ML:2.1 0.0002046387 1.36 AML other m 2018-12-11T00:05:05.70
IV.SSY.HHN. ML:2.4 0.0003507878 0.38 AML other m 2018-12-11T00:05:21.90
IV.SSY.HHE. ML:2.3 0.00027334455 1.12 AML other m 2018-12-11T00:05:35.51
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