Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 20-11-2018 and time 06:39:51 (Italy) in region 9 km NE Adrano (CT)

A magnitude ML 2.1 earthquake occured in region: 9 km NE Adrano (CT), on

  • 20-11-2018 05:39:51 (UTC)
  • 20-11-2018 06:39:51 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7200, 14.9030 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.

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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
Biancavilla CT 9 24007 60129
Bronte CT 10 19172 79301
Ragalna CT 10 3924 83225
Santa Maria di Licodia CT 12 7641 90866
Maletto CT 13 3920 94786
Belpasso CT 16 28108 122894
Paternò CT 16 48228 171122
Nicolosi CT 16 7463 178585
Pedara CT 18 14102 192687
Centuripe EN 18 5470 198157
Zafferana Etnea CT 18 9517 207674
Maniace CT 18 3765 211439
Randazzo CT 18 10900 222339
Milo CT 19 1087 223426
Camporotondo Etneo CT 19 5023 228449
Trecastagni CT 19 10910 239359
San Pietro Clarenza CT 20 7743 247102

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km W 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)
96 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 2.1 2018-11-20
05:39:51		 37.7197 14.9033 27 2019-06-04
09:16:17		 Bollettino Sismico Italiano INGV 68535131
Reviewed
Rev100 		ML 2.0 2018-11-20
05:39:51		 37.725 14.9225 28 2018-11-20
08:25:55		 Sala Sismica INGV-Roma 63229451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-11-20 05:39:51 ± 0.18
Latitude 37.7197 ± 0.0063
Longitude 14.9033 ± 0.0148
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 68535131

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 980
Semi-minor axis of confidence ellipse (meter) 877
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 286
Circular confidence region, given by single value of horizontal uncertainty (meter) 980.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.76622
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 68535131
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-05-14 08:48:21

ML:2.0

Field Value
Value 2.0
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 63229451
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-11-20 08:25:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GIUL.HHZ. 2018-11-20T05:41:45.92 3.0 undecidable manual Sg 9.34 0
IV.SBPO.HNZ. 2018-11-20T05:41:38.90 3.0 positive manual Pn -2.31 0
IV.PTRJ.HNZ. 2018-11-20T05:41:32.74 3.0 undecidable manual Sg 6.07 0
IV.PE3.EHZ. 2018-11-20T05:41:30.39 3.0 positive manual Pg 12.12 0
IV.SEI.HHZ. 2018-11-20T05:41:29.44 3.0 undecidable manual Pn 2.44 0
IV.VIVA.HHZ. 2018-11-20T05:41:28.63 3.0 undecidable manual Sn -9.99 0
GU.CARD.HHZ. 2018-11-20T05:41:26.61 3.0 undecidable manual Pn -4.04 0
GU.SARM.EHZ. 2018-11-20T05:41:25.49 3.0 undecidable manual Pn -7.44 0
IV.MGR.HNZ. 2018-11-20T05:40:59.65 3.0 undecidable manual Sg 2.23 0
IV.SRES.HHZ. 2018-11-20T05:40:57.74 3.0 positive manual Pn -1.89 0
IV.VIVA.HHZ. 2018-11-20T05:40:55.26 3.0 positive manual Pg 2.76 0
IV.MTGR.HHZ. 2018-11-20T05:40:40.52 3.0 undecidable manual Sg -0.05 0
IV.CMPR.HHZ. 2018-11-20T05:40:33.78 3.0 undecidable manual Pg 5.43 0
IV.MGR.HNZ. 2018-11-20T05:40:17.35 3.0 undecidable manual Pn -8.88 0
IV.HMDC.HHZ. 2018-11-20T05:40:17.59 0.3 undecidable manual S 187 85.0482 102 0.28 65
IV.SSY.HHZ. 2018-11-20T05:40:12.12 0.3 undecidable manual S 166 64.0914 106 0.23 69
IV.AIO.HHE. 2018-11-20T05:40:06.55 0.6 undecidable manual S 46 40.1265 117 0.63 42
IV.HMDC.HHZ. 2018-11-20T05:40:06.72 0.6 undecidable manual P 187 85.0482 102 0.23 44
IV.HLNI.HHZ. 2018-11-20T05:40:06.03 0.3 undecidable manual S 184 41.2254 117 -0.16 73
IV.MUCR.HHE. 2018-11-20T05:40:05.16 0.6 undecidable manual S 356 35.9418 120 0.22 48
IV.GALF.HHZ. 2018-11-20T05:40:04.28 0.3 undecidable manual S 268 29.5482 126 0.76 63
IV.SSY.HHZ. 2018-11-20T05:40:03.53 0.3 undecidable manual P 166 64.0914 106 0.17 69
IV.EPZF.HHZ. 2018-11-20T05:40:00.94 0.3 undecidable manual S 341 12.2766 152 0.49 71
IV.ESML.HHZ. 2018-11-20T05:40:00.52 0.3 undecidable manual S 191 11.4774 154 0.16 77
IV.EMCN.HNZ. 2018-11-20T05:40:00.77 0.6 undecidable manual S 55 13.875 149 0.1 51
IV.ESLN.HHZ. 2018-11-20T05:39:59.26 0.3 undecidable manual S 115 6.8931 164 -0.66 68
IV.AIO.HHE. 2018-11-20T05:39:59.91 0.1 undecidable manual P 46 40.1265 117 -0.01 100
IV.HLNI.HHZ. 2018-11-20T05:39:59.62 0.3 undecidable manual P 184 41.2254 117 -0.45 68
IV.MUCR.HHE. 2018-11-20T05:39:59.03 0.3 undecidable manual P 356 35.9418 120 -0.32 71
IV.GALF.HHZ. 2018-11-20T05:39:58.24 0.3 undecidable manual P 268 29.5482 126 -0.29 72
IV.MNO.SHZ. 2018-11-20T05:39:58.37 0.3 undecidable manual P 322 29.748 126 -0.18 74
IV.EPOZ.HHZ. 2018-11-20T05:39:58.12 0.3 undecidable manual P 102 25.5522 131 0.07 76
IV.EMCN.HNZ. 2018-11-20T05:39:57.15 0.1 undecidable manual P 55 13.875 149 0.27 99
IV.ESLN.HHZ. 2018-11-20T05:39:56.01 0.1 undecidable manual P 115 6.8931 164 -0.44 97
IV.EPZF.HHZ. 2018-11-20T05:39:56.14 0.1 undecidable manual P 341 12.2766 152 -0.62 91
IV.ESML.HHZ. 2018-11-20T05:39:56.99 0.3 undecidable manual P 191 11.4774 154 0.29 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EPZF.HHN. ML:2.6 0.00213 0.26 AML other m 2018-11-20T05:40:01.35
IV.EPZF.HHE. ML:2.8 0.0031149999999999997 0.5 AML other m 2018-11-20T05:40:01.45
IV.ESML.HHN. ML:2.0 0.00057 1.44 AML other m 2018-11-20T05:40:05.02
IV.GALF.HHE. ML:2.1 0.00041749999999999996 0.42 AML other m 2018-11-20T05:40:06.21
IV.HLNI.HHE. ML:2.0 0.00026250000000000004 0.32 AML other m 2018-11-20T05:40:06.45
IV.HLNI.HHN. ML:2.1 0.00034250000000000003 0.28 AML other m 2018-11-20T05:40:06.75
IV.GALF.HHN. ML:1.8 0.00023549999999999998 0.66 AML other m 2018-11-20T05:40:06.59
IV.ESML.HHE. ML:2.0 0.000499 0.36 AML other m 2018-11-20T05:40:11.30
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