Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 18-02-2006 and time 10:37:22 (UTC) in region 4 km NW Motta Sant'Anastasia (CT)

A magnitude ML 1.9 earthquake occured in region: 4 km NW Motta Sant'Anastasia (CT), on

  • 18-02-2006 10:37:22 (UTC)
  • 18-02-2006 11:37:22 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.5410, 14.9500 at 10 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
Motta Sant'Anastasia CT 4 12116 12116
Misterbianco CT 6 49410 61526
Paternò CT 6 48228 109754
Camporotondo Etneo CT 6 5023 114777
Belpasso CT 6 28108 142885
San Pietro Clarenza CT 8 7743 150628
Mascalucia CT 10 31958 182586
Santa Maria di Licodia CT 10 7641 190227
Ragalna CT 10 3924 194151
Gravina di Catania CT 10 25838 219989
Nicolosi CT 11 7463 227452
Tremestieri Etneo CT 12 20589 248041
Sant'Agata li Battiati CT 12 9479 257520
Catania CT 13 314555 572075
Pedara CT 13 14102 586177
Biancavilla CT 13 24007 610184
San Giovanni la Punta CT 13 23060 633244
Trecastagni CT 14 10910 644154
San Gregorio di Catania CT 14 11966 656120
Viagrande CT 15 8563 664683
Aci Bonaccorsi CT 15 3524 668207
Valverde CT 16 7840 676047
Adrano CT 17 36122 712169
Aci Sant'Antonio CT 17 17984 730153
Aci Castello CT 17 18723 748876
Aci Catena CT 18 29851 778727

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km W of Catania (314555 inhabitants)
21 Km W of Acireale (52622 inhabitants)
61 Km NW of Siracusa (122291 inhabitants)
71 Km N of Ragusa (73313 inhabitants)
75 Km NE of Vittoria (63339 inhabitants)
78 Km N of Modica (54633 inhabitants)
78 Km E of Caltanissetta (63360 inhabitants)
81 Km NE of Gela (75827 inhabitants)
88 Km SW of Reggio di Calabria (183035 inhabitants)
90 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 2.1
ML 1.9 		2006-02-18
10:37:22		 37.541 14.95 10 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 554059
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2006-02-18 10:37:22 ± 0.81
Latitude 37.5410 ± 0.0477
Longitude 14.9500 ± 0.0340
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 554059

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 5368
Semi-minor axis of confidence ellipse (meter) 2842
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 12
Circular confidence region, given by single value of horizontal uncertainty (meter) 6090.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 295
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.58
Epicentral distance of station closest to the epicenter (degree) 0.35973
Epicentral distance of station farthest from the epicenter (degree) 0.59715
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 554059
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:39:57

Md:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 554059
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:39:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSY.BHZ. 2006-02-18T10:37:37.91 0.3 undecidable manual Sg 166 43.9227 0.6 34
IV.AGST.EHE. 2006-02-18T10:37:35.41 0.3 undecidable manual Sg 142 39.9267 -0.836 31
IV.HAVL.BHE. 2006-02-18T10:37:34.54 0.1 undecidable manual Pg 167 66.2781 -0.126 98
IV.PZI.SHZ. 2006-02-18T10:37:32.97 0.1 negative manual Pg 180 53.6019 0.243 98
IV.HVZN.BHZ. 2006-02-18T10:37:31.22 0.3 undecidable manual Pg 207 45.2214 -0.206 75
IV.AGST.EHE. 2006-02-18T10:37:30.95 0.1 undecidable manual Pg 142 39.9267 0.344 99
IV.SSY.BHZ. 2006-02-18T10:37:30.98 0.1 positive manual Pg 166 43.9227 -0.239 100
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