Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 20-11-2018 and time 08:30:38 (Italy) in region 9 km NE Adrano (CT)

A magnitude ML 2.3 earthquake occured in region: 9 km NE Adrano (CT), on

  • 20-11-2018 07:30:38 (UTC)
  • 20-11-2018 08:30:38 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7240, 14.9020 at 25 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
Adrano CT 9 36122 36122
Bronte CT 9 19172 55294
Biancavilla CT 9 24007 79301
Ragalna CT 11 3924 83225
Santa Maria di Licodia CT 12 7641 90866
Maletto CT 12 3920 94786
Belpasso CT 16 28108 122894
Paternò CT 16 48228 171122
Nicolosi CT 16 7463 178585
Maniace CT 18 3765 182350
Randazzo CT 18 10900 193250
Zafferana Etnea CT 18 9517 202767
Centuripe EN 18 5470 208237
Pedara CT 18 14102 222339
Milo CT 19 1087 223426
Camporotondo Etneo CT 20 5023 228449
Trecastagni CT 20 10910 239359
San Pietro Clarenza CT 20 7743 247102

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km NW of Acireale (52622 inhabitants)
29 Km NW of Catania (314555 inhabitants)
78 Km SW of Messina (238439 inhabitants)
78 Km SW of Reggio di Calabria (183035 inhabitants)
78 Km E of Caltanissetta (63360 inhabitants)
81 Km NW of Siracusa (122291 inhabitants)
90 Km N of Ragusa (73313 inhabitants)
92 Km NE of Vittoria (63339 inhabitants)
93 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 2.3 2018-11-20
07:30:38		 37.7235 14.902 25 2019-06-04
09:16:17		 Bollettino Sismico Italiano INGV 68535861
Reviewed
Rev100 		ML 2.1 2018-11-20
07:30:38		 37.7208 14.8817 24 2018-11-20
07:52:17		 Sala Sismica INGV-Roma 63229111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-11-20 07:30:38 ± 0.15
Latitude 37.7235 ± 0.0054
Longitude 14.9020 ± 0.0091
Depth (km) 25 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 68535861

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 847
Semi-minor axis of confidence ellipse (meter) 98
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 71
Circular confidence region, given by single value of horizontal uncertainty (meter) 850.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 55
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.76982
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 68535861
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-05-14 09:19:15

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 63229111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-11-20 07:52:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MTGR.HHZ. 2018-11-20T07:31:07.49 3.0 negative manual Pn 0.97 0
IV.HMDC.HHZ. 2018-11-20T07:31:04.58 0.6 undecidable manual S 187 85.4478 101 0.23 45
IV.SSY.HHZ. 2018-11-20T07:30:59.11 0.3 undecidable manual S 166 64.5909 105 0.2 70
IV.HAGA.HHZ. 2018-11-20T07:30:55.70 0.6 undecidable manual S 155 53.502 108 -0.37 46
IV.HMDC.HHZ. 2018-11-20T07:30:54.01 0.3 undecidable manual P 187 85.4478 101 0.48 64
IV.HLNI.HHZ. 2018-11-20T07:30:53.01 0.6 undecidable manual S 184 41.7249 114 -0.12 50
IV.AIO.HHZ. 2018-11-20T07:30:53.41 0.6 undecidable manual S 46 39.9267 115 0.71 42
IV.MUCR.HHE. 2018-11-20T07:30:52.11 0.6 undecidable manual S 356 35.5422 118 0.46 47
IV.GALF.HHZ. 2018-11-20T07:30:51.28 0.3 undecidable manual S 267 29.4483 124 1.02 56
IV.RAFF.HHZ. 2018-11-20T07:30:51.68 0.3 undecidable manual P 221 73.0713 103 0.01 72
IV.SSY.HHZ. 2018-11-20T07:30:50.58 0.3 undecidable manual P 166 64.5909 105 0.19 71
IV.MNO.SHZ. 2018-11-20T07:30:49.77 0.6 undecidable manual S 322 29.3484 124 -0.46 47
IV.HAGA.HHZ. 2018-11-20T07:30:48.18 0.3 undecidable manual P 155 53.502 108 -0.57 65
IV.EMCN.HNZ. 2018-11-20T07:30:47.50 0.6 undecidable manual S 57 13.7751 147 0.21 51
IV.EPZF.HHZ. 2018-11-20T07:30:47.49 0.6 undecidable manual S 341 11.7771 151 0.47 49
IV.ESML.HHZ. 2018-11-20T07:30:47.19 0.6 undecidable manual S 190 11.877 151 0.16 52
IV.AIO.HHZ. 2018-11-20T07:30:46.92 0.1 positive manual P 46 39.9267 115 0.12 100
IV.ESLN.HHZ. 2018-11-20T07:30:46.32 0.3 undecidable manual S 118 7.1928 162 -0.21 78
IV.HLNI.HHZ. 2018-11-20T07:30:46.87 0.1 undecidable manual P 184 41.7249 114 -0.18 98
IV.EPOZ.HNZ. 2018-11-20T07:30:45.21 0.3 undecidable manual P 103 25.752 128 0.28 74
IV.MUCR.HHE. 2018-11-20T07:30:45.85 0.1 undecidable manual P 356 35.5422 118 -0.35 96
IV.GALF.HHZ. 2018-11-20T07:30:45.19 0.1 undecidable manual P 267 29.4483 124 -0.21 100
IV.MNO.SHZ. 2018-11-20T07:30:45.22 0.3 undecidable manual P 322 29.3484 124 -0.15 76
IV.ESML.HHZ. 2018-11-20T07:30:43.31 0.3 undecidable manual P 190 11.877 151 -0.22 77
IV.EMCN.HNZ. 2018-11-20T07:30:43.98 0.6 undecidable manual P 57 13.7751 147 0.3 50
IV.EPZF.HHZ. 2018-11-20T07:30:43.06 0.1 undecidable manual P 341 11.7771 151 -0.47 98
IV.ESLN.HHZ. 2018-11-20T07:30:42.95 0.3 undecidable manual P 118 7.1928 162 -0.29 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ESLN.HHN. ML:2.3 0.0013199999999999998 1.64 AML other m 2018-11-20T07:30:46.93
IV.EPZF.HHE. ML:3.0 0.005574999999999999 0.52 AML other m 2018-11-20T07:30:48.39
IV.EPZF.HHN. ML:2.7 0.0029050000000000005 0.28 AML other m 2018-11-20T07:30:48.28
IV.MNO.SHN. ML:0.0 0.0004575 0.56 AML other m 2018-11-20T07:30:50.32
IV.MNO.SHE. ML:0.0 0.000814 1.28 AML other m 2018-11-20T07:30:51.90
IV.GALF.HHN. ML:2.0 0.00039 0.94 AML other m 2018-11-20T07:30:52.63
IV.ESML.HHN. ML:2.3 0.0011200000000000001 0.52 AML other m 2018-11-20T07:30:52.97
IV.ESML.HHE. ML:2.2 0.0008655000000000001 1.74 AML other m 2018-11-20T07:30:52.91
IV.GALF.HHE. ML:2.3 0.000836 0.42 AML other m 2018-11-20T07:30:53.17
IV.GALF.HNE. ML:1.8 0.000265 0.4 AML other m 2018-11-20T07:30:53.38
IV.HLNI.HHN. ML:2.3 0.0005645 0.34 AML other m 2018-11-20T07:30:53.71
IV.ESLN.HHE. ML:2.5 0.00183 1.24 AML other m 2018-11-20T07:30:53.91
IV.AIO.HHE. ML:2.2 0.0004525 0.34 AML other m 2018-11-20T07:30:53.75
IV.HLNI.HHE. ML:2.2 0.00042699999999999997 0.72 AML other m 2018-11-20T07:30:54.40
IV.GALF.HNN. ML:1.7 0.000178 1.28 AML other m 2018-11-20T07:30:55.05
IV.AIO.HHN. ML:2.0 0.00026649999999999997 1.42 AML other m 2018-11-20T07:30:56.74
IV.SSY.HHE. ML:2.7 0.000878 0.58 AML other m 2018-11-20T07:30:59.22
IV.SSY.HHN. ML:2.9 0.0014100000000000002 0.28 AML other m 2018-11-20T07:31:05.63
IV.HMDC.HHN. ML:2.4 0.0003355 0.52 AML other m 2018-11-20T07:31:06.39
IV.HMDC.HHE. ML:2.7 0.0005710000000000001 0.78 AML other m 2018-11-20T07:31:06.85
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