Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 28-07-2011 and time 12:11:57 (Italy) in region 1 km SW Santa Maria di Licodia (CT)

A magnitude ML 2.0 earthquake occured in region: 1 km SW Santa Maria di Licodia (CT), on

  • 28-07-2011 10:11:57 (UTC)
  • 28-07-2011 12:11:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.6090, 14.8770 at 8 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
Santa Maria di Licodia CT 1 7641 7641
Biancavilla CT 4 24007 31648
Paternò CT 4 48228 79876
Ragalna CT 6 3924 83800
Adrano CT 7 36122 119922
Belpasso CT 9 28108 148030
Centuripe EN 12 5470 153500
Camporotondo Etneo CT 12 5023 158523
Nicolosi CT 13 7463 165986
Motta Sant'Anastasia CT 14 12116 178102
San Pietro Clarenza CT 14 7743 185845
Misterbianco CT 15 49410 235255
Mascalucia CT 16 31958 267213
Pedara CT 16 14102 281315
Catenanuova EN 17 4866 286181
Gravina di Catania CT 17 25838 312019
Tremestieri Etneo CT 18 20589 332608
Trecastagni CT 18 10910 343518
Sant'Agata li Battiati CT 19 9479 352997
Viagrande CT 19 8563 361560
San Giovanni la Punta CT 20 23060 384620

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km NW of Catania (314555 inhabitants)
26 Km W of Acireale (52622 inhabitants)
71 Km NW of Siracusa (122291 inhabitants)
73 Km E of Caltanissetta (63360 inhabitants)
77 Km N of Ragusa (73313 inhabitants)
79 Km NE of Vittoria (63339 inhabitants)
82 Km NE of Gela (75827 inhabitants)
84 Km N of Modica (54633 inhabitants)
87 Km SW of Reggio di Calabria (183035 inhabitants)
88 Km SW of Messina (238439 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 		Md 2.4
ML 2.0 		2011-07-28
10:11:57		 37.609 14.877 8 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 1264669
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-07-28 10:11:57 ± 0.15
Latitude 37.6090 ± 0.0081
Longitude 14.8770 ± 0.0125
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1264669

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 875
Semi-minor axis of confidence ellipse (meter) 840
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 141
Circular confidence region, given by single value of horizontal uncertainty (meter) 1421.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 116
Number of associated phases, regardless of their use for origin computation 37
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.67
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.82198
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 1264669
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 00:56:55

Md:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1264669
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 00:56:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FSSB.HHE. 2011-07-28T10:13:24.20 10.0 undecidable manual Pg 0 0 0
IV.STAL.HHE. 2011-07-28T10:13:11.67 10.0 undecidable manual Pg 0 0 0
IV.MTGR.SHZ. 2011-07-28T10:13:10.07 10.0 undecidable manual Pg 0 0 0
IV.ZCCA.HHN. 2011-07-28T10:13:07.13 10.0 undecidable manual Pg 0 0 0
IV.PLAC.HHN. 2011-07-28T10:12:49.56 10.0 undecidable manual Pg 0 0 0
IV.PRMA.HHN. 2011-07-28T10:12:43.20 10.0 undecidable manual Pg 0 0 0
IV.SOI.EHZ. 2011-07-28T10:12:34.68 10.0 undecidable manual Pg 0 0 0
IV.GMB.BHE. 2011-07-28T10:12:34.20 10.0 undecidable manual Pg 0 0 0
IV.MPAZ.HHN. 2011-07-28T10:12:33.50 10.0 undecidable manual Pg 0 0 0
IV.PLLN.SHE. 2011-07-28T10:12:28.23 10.0 undecidable manual Pg 0 0 0
IV.MSCL.HHZ. 2011-07-28T10:12:16.57 10.0 undecidable manual Pg 0 0 0
IV.MSRU.HHZ. 2011-07-28T10:12:13.68 0.6 undecidable manual Pg 37 91.242 0.228 48
IV.IVPL.HHZ. 2011-07-28T10:12:13.21 0.3 undecidable manual Pg 6 85.5477 0.636 65
IV.ATN.BHE. 2011-07-28T10:12:12.46 10.0 undecidable manual Pg 0 0 0
IV.MILZ.HHE. 2011-07-28T10:12:11.99 0.3 undecidable manual Pg 23 79.7646 0.313 72
IV.HMDC.HHE. 2011-07-28T10:12:11.72 0.3 undecidable manual Pg 187 72.5718 1.145 53
IV.HAVL.HHE. 2011-07-28T10:12:10.48 0.3 undecidable manual Pg 163 75.2691 -0.501 69
IV.MPNC.HHZ. 2011-07-28T10:12:10.96 0.6 undecidable manual Pg 35 72.7716 0.364 48
IV.RAFF.HHE. 2011-07-28T10:12:09.02 0.3 undecidable manual Pg 227 62.3931 0.019 79
IV.MCSR.HHZ. 2011-07-28T10:12:08.53 0.3 undecidable manual Pg 31 59.2962 0.012 79
IV.MSFR.HHZ. 2011-07-28T10:12:08.50 0.3 undecidable manual Pg 332 53.3022 0.896 62
IV.HLNI.HHZ. 2011-07-28T10:12:08.96 0.6 undecidable manual Sg 181 28.9488 1.094 39
IV.SSY.HHN. 2011-07-28T10:12:07.21 0.3 undecidable manual Pg 161 53.0025 -0.344 75
IV.GALF.HHZ. 2011-07-28T10:12:07.82 0.6 undecidable manual Sg 293 29.4483 -0.232 53
IV.NOV.HHZ. 2011-07-28T10:12:07.37 0.3 undecidable manual Pg 26 51.7038 0.012 80
IV.MUCR.HHZ. 2011-07-28T10:12:06.55 0.3 undecidable manual Pg 360 48.1185 -0.252 77
IV.HVZN.HHZ. 2011-07-28T10:12:06.90 0.6 undecidable manual Pg 197 49.8168 -0.171 52
IV.MMME.HHZ. 2011-07-28T10:12:06.72 0.3 undecidable manual Pg 42 49.0176 -0.222 77
IV.CAGR.HHE. 2011-07-28T10:12:05.16 0.3 undecidable manual Pg 273 33.1446 0.852 65
IV.HCRL.HHN. 2011-07-28T10:12:04.98 0.6 undecidable manual Pg 159 38.7279 -0.368 51
IV.MNO.SHZ. 2011-07-28T10:12:04.33 0.3 undecidable manual Pg 336 39.1275 -1.083 58
IV.ESLN.HHZ. 2011-07-28T10:12:03.66 0.6 undecidable manual Sg 43 12.6762 1.047 41
IV.GALF.HHZ. 2011-07-28T10:12:03.18 0.3 undecidable manual Pg 293 29.4483 -0.415 77
IV.ECNV.HHZ. 2011-07-28T10:12:03.89 0.6 undecidable manual Sg 264 14.4744 0.728 47
IV.HLNI.HHZ. 2011-07-28T10:12:03.14 0.3 undecidable manual Pg 181 28.9488 -0.346 78
IV.ECNV.HHZ. 2011-07-28T10:12:00.06 0.1 undecidable manual Pg 264 14.4744 -0.712 95
IV.ESLN.HHZ. 2011-07-28T10:11:59.86 0.1 undecidable manual Pg 43 12.6762 -0.595 100
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