Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 20-11-2018 and time 04:59:11 (UTC) in region 10 km N Ragalna (CT)

A magnitude ML 2.4 earthquake occured in region: 10 km N Ragalna (CT), on

  • 20-11-2018 04:59:11 (UTC)
  • 20-11-2018 05:59:11 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7220, 14.9300 at 28 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
Ragalna CT 10 3924 3924
Biancavilla CT 10 24007 27931
Adrano CT 11 36122 64053
Bronte CT 11 19172 83225
Santa Maria di Licodia CT 12 7641 90866
Maletto CT 13 3920 94786
Nicolosi CT 15 7463 102249
Belpasso CT 15 28108 130357
Zafferana Etnea CT 16 9517 139874
Paternò CT 16 48228 188102
Pedara CT 16 14102 202204
Milo CT 16 1087 203291
Trecastagni CT 18 10910 214201
Randazzo CT 18 10900 225101
Camporotondo Etneo CT 18 5023 230124
San Pietro Clarenza CT 19 7743 237867
Santa Venerina CT 19 8592 246459
Sant'Alfio CT 19 1582 248041
Maniace CT 19 3765 251806
Viagrande CT 19 8563 260369
Mascalucia CT 20 31958 292327

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km NW of Acireale (52622 inhabitants)
28 Km NW of Catania (314555 inhabitants)
76 Km SW of Messina (238439 inhabitants)
76 Km SW of Reggio di Calabria (183035 inhabitants)
80 Km NW of Siracusa (122291 inhabitants)
81 Km E of Caltanissetta (63360 inhabitants)
90 Km N of Ragusa (73313 inhabitants)
93 Km NE of Vittoria (63339 inhabitants)
94 Km NE of Gela (75827 inhabitants)
97 Km N of Modica (54633 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 2.4 2018-11-20
04:59:11		 37.7223 14.9303 28 2019-06-04
09:16:11		 Bollettino Sismico Italiano INGV 66301181
Reviewed
Rev100 		ML 2.4 2018-11-20
04:59:11		 37.7337 14.8858 33 2018-11-20
05:07:16		 Sala Sismica INGV-Roma 63222051
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-11-20 04:59:11 ± 0.23
Latitude 37.7223 ± 0.0081
Longitude 14.9303 ± 0.0159
Depth (km) 28 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 66301181

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1070
Semi-minor axis of confidence ellipse (meter) 1057
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 66
Circular confidence region, given by single value of horizontal uncertainty (meter) 1070.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 80
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.43
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.01713
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 63222051
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-11-20 05:07:16

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 66301181
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-03-08 16:50:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BULG.HHZ. 2018-11-20T05:00:22.85 3.0 undecidable manual Sg 4.55 0
IV.HPAC.HHZ. 2018-11-20T04:59:45.10 0.3 undecidable manual S 175 112.8981 100 0.61 55
IV.CROCE.HHZ. 2018-11-20T04:59:42.40 0.1 undecidable manual S 200 104.7174 100 0.05 86
IV.HMDC.HHZ. 2018-11-20T04:59:37.70 0.6 undecidable manual S 189 85.6476 103 0.33 42
IV.SSY.HHZ. 2018-11-20T04:59:32.44 3.0 undecidable manual S 64.2912 0.56 0
IV.HPAC.HHZ. 2018-11-20T04:59:31.40 0.1 undecidable manual P 175 112.8981 100 0.83 67
IV.AGST.EHZ. 2018-11-20T04:59:30.50 0.1 undecidable manual S 153 57.8976 110 0.25 90
IV.CROCE.HHZ. 2018-11-20T04:59:28.63 0.1 undecidable manual P 200 104.7174 100 -0.7 71
IV.HAGA.HHZ. 2018-11-20T04:59:28.90 0.1 undecidable manual S 158 52.4031 112 0.03 95
IV.AIO.HHZ. 2018-11-20T04:59:26.30 0.3 undecidable manual S 44 38.2284 120 0.81 58
IV.HLNI.HHZ. 2018-11-20T04:59:26.10 0.1 undecidable manual S 187 41.8248 118 -0.21 93
IV.HMDC.HHZ. 2018-11-20T04:59:25.96 0.3 undecidable manual P 189 85.6476 103 -0.49 60
IV.RAFF.HHZ. 2018-11-20T04:59:24.92 0.1 undecidable manual P 222 74.6697 105 0.11 90
IV.MNO.SHZ. 2018-11-20T04:59:24.10 0.6 undecidable manual S 318 31.0467 127 0.23 47
IV.SSY.HHZ. 2018-11-20T04:59:22.59 3.0 negative manual P 64.2912 -0.67 0
IV.AGST.EHZ. 2018-11-20T04:59:22.04 0.1 negative manual P 153 57.8976 110 -0.3 89
IV.HAGA.HHZ. 2018-11-20T04:59:21.26 0.1 negative manual P 158 52.4031 112 -0.29 90
IV.ESML.HHZ. 2018-11-20T04:59:21.50 0.1 undecidable manual S 201 12.3765 153 0.88 79
IV.EPZF.HHZ. 2018-11-20T04:59:20.90 0.3 undecidable manual S 330 12.9759 152 0.2 74
IV.CAGR.HHE. 2018-11-20T04:59:20.42 0.1 undecidable manual P 254 39.4272 120 0.68 83
IV.HLNI.HHZ. 2018-11-20T04:59:19.71 0.1 undecidable manual P 187 41.8248 118 -0.36 90
IV.AIO.HHZ. 2018-11-20T04:59:19.88 0.1 positive manual P 44 38.2284 120 0.29 92
IV.ESLN.HHZ. 2018-11-20T04:59:19.50 0.3 undecidable manual S 130 4.995 169 -0.48 71
IV.MNO.SHZ. 2018-11-20T04:59:18.44 0.1 undecidable manual P 318 31.0467 127 -0.22 95
IV.EMCN.HNZ. 2018-11-20T04:59:16.87 0.1 undecidable manual P 50 11.877 155 0.12 100
IV.EPZF.HHZ. 2018-11-20T04:59:16.12 0.1 positive manual P 330 12.9759 152 -0.71 85
IV.ESML.HHZ. 2018-11-20T04:59:16.39 0.3 undecidable manual P 201 12.3765 153 -0.4 71
IV.ESLN.HHZ. 2018-11-20T04:59:15.88 0.1 negative manual P 130 4.995 169 -0.54 92
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ESLN.HHN. ML:0.0 0.00173 0.24 AML other m 2018-11-20T04:59:20.21
IV.EPZF.HHE. ML:0.0 0.005001955 0.6016 AML other m 2018-11-20T04:59:21.44
IV.EPZF.HHN. ML:0.0 0.0022461845 0.4416 AML other m 2018-11-20T04:59:21.51
IV.ESLN.HHE. ML:0.0 0.0017586735 0.4 AML other m 2018-11-20T04:59:21.66
IV.ESML.HHE. ML:0.0 0.001371664 0.1792 AML other m 2018-11-20T04:59:22.48
IV.MNO.SHE. ML:0.0 0.0010837859000000002 0.48 AML other m 2018-11-20T04:59:24.36
IV.ESML.HHN. ML:0.0 0.001267817 1.4592 AML other m 2018-11-20T04:59:25.04
IV.MNO.SHN. ML:0.0 0.00052828395 0.24 AML other m 2018-11-20T04:59:26.38
IV.HLNI.HHN. ML:0.0 0.0005818387499999999 0.2208 AML other m 2018-11-20T04:59:26.84
IV.AIO.HHE. ML:0.0 0.0007415397 0.3392 AML other m 2018-11-20T04:59:26.67
IV.HLNI.HHE. ML:0.0 0.00045504455 0.2016 AML other m 2018-11-20T04:59:27.17
IV.AIO.HHN. ML:0.0 0.00034978710000000004 1.7568 AML other m 2018-11-20T04:59:27.98
IV.HAGA.HHE. ML:0.0 0.00032430395 0.3392 AML other m 2018-11-20T04:59:29.27
IV.RAFF.HHN. ML:2.0 0.000140683635 0.8608 AML other m 2018-11-20T04:59:29.55
IV.AGST.EHN. ML:0.0 0.00042169520000000005 0.3808 AML other m 2018-11-20T04:59:31.46
IV.HAGA.HHN. ML:0.0 0.00037343675 0.4192 AML other m 2018-11-20T04:59:31.55
IV.SSY.HHE. ML:2.9 0.0012788368 0.1792 AML other m 2018-11-20T04:59:32.31
IV.AGST.EHE. ML:0.0 0.000467386 0.2208 AML other m 2018-11-20T04:59:34.02
IV.RAFF.HHE. ML:2.0 0.00014884285 0.4416 AML other m 2018-11-20T04:59:36.89
IV.GALF.HNE. ML:1.9 0.0002787979 0.3808 AML other m 2018-11-20T04:59:26.53
IV.GALF.HNN. ML:1.8 0.00021398514999999998 0.4096 AML other m 2018-11-20T04:59:26.28
IV.GALF.HHE. ML:2.4 0.0009334489999999999 0.3808 AML other m 2018-11-20T04:59:26.33
IV.GALF.HHN. ML:2.2 0.00052781505 0.3008 AML other m 2018-11-20T04:59:25.70
IV.SSY.HHN. ML:3.2 0.0027000895 0.16 AML other m 2018-11-20T04:59:35.33
IV.HMDC.HHN. ML:2.5 0.00038690999999999997 0.2016 AML other m 2018-11-20T04:59:39.70
IV.HMDC.HHE. ML:2.7 0.0006742327999999999 0.2816 AML other m 2018-11-20T04:59:39.10
IV.CROCE.HHE. ML:2.4 0.00022530357000000002 0.3616 AML other m 2018-11-20T04:59:43.56
IV.CROCE.HHN. ML:2.6 0.00032571515 0.2976 AML other m 2018-11-20T04:59:43.43
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