Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 18-06-2009 and time 23:12:07 (UTC) in region 4 km N Ragalna (CT)

A magnitude ML 1.5 earthquake occured in region: 4 km N Ragalna (CT), on

  • 18-06-2009 23:12:07 (UTC)
  • 19-06-2009 01:12:07 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.6670, 14.9320 at 27 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 4 3924 3924
Biancavilla CT 6 24007 27931
Santa Maria di Licodia CT 7 7641 35572
Adrano CT 9 36122 71694
Belpasso CT 9 28108 99802
Nicolosi CT 10 7463 107265
Paternò CT 10 48228 155493
Pedara CT 13 14102 169595
Camporotondo Etneo CT 13 5023 174618
San Pietro Clarenza CT 13 7743 182361
Trecastagni CT 14 10910 193271
Mascalucia CT 15 31958 225229
Zafferana Etnea CT 16 9517 234746
Viagrande CT 16 8563 243309
Tremestieri Etneo CT 16 20589 263898
Bronte CT 16 19172 283070
Gravina di Catania CT 16 25838 308908
Aci Bonaccorsi CT 17 3524 312432
San Giovanni la Punta CT 17 23060 335492
Motta Sant'Anastasia CT 17 12116 347608
Misterbianco CT 17 49410 397018
Milo CT 18 1087 398105
Centuripe EN 18 5470 403575
Sant'Agata li Battiati CT 18 9479 413054
Aci Sant'Antonio CT 18 17984 431038
Santa Venerina CT 18 8592 439630
Maletto CT 19 3920 443550
San Gregorio di Catania CT 19 11966 455516
Valverde CT 20 7840 463356
Aci Catena CT 20 29851 493207

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km W of Acireale (52622 inhabitants)
23 Km NW of Catania (314555 inhabitants)
75 Km NW of Siracusa (122291 inhabitants)
79 Km E of Caltanissetta (63360 inhabitants)
80 Km SW of Reggio di Calabria (183035 inhabitants)
80 Km SW of Messina (238439 inhabitants)
84 Km N of Ragusa (73313 inhabitants)
87 Km NE of Vittoria (63339 inhabitants)
90 Km NE of Gela (75827 inhabitants)
91 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 		Md 2.0
ML 1.5 		2009-06-18
23:12:07		 37.667 14.932 27 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 897849
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-06-18 23:12:07 ± 0.63
Latitude 37.6670 ± 0.0117
Longitude 14.9320 ± 0.0295
Depth (km) 27 ± 5 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 897849

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2176
Semi-minor axis of confidence ellipse (meter) 1589
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 282
Circular confidence region, given by single value of horizontal uncertainty (meter) 2906.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 125
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.64
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.72216
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 897849
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 17:04:25

Md:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 897849
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 17:04:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAVL.HHE. 2009-06-18T23:12:31.94 0.3 undecidable manual Sg 168 80.1642 0.45 71
IV.SSY.HHE. 2009-06-18T23:12:26.18 0.1 undecidable manual Sg 168 57.7977 0.437 99
IV.HCRL.HHN. 2009-06-18T23:12:21.77 0.3 undecidable manual Sg 168 43.4232 -0.422 78
IV.MMME.HHE. 2009-06-18T23:12:21.66 0.3 undecidable manual Sg 43 41.0256 0.043 84
IV.HAVL.HHE. 2009-06-18T23:12:20.93 0.1 undecidable manual Pg 168 80.1642 -0.262 100
IV.GALF.HHZ. 2009-06-18T23:12:18.91 0.6 undecidable manual Sg 279 32.4453 -0.75 46
IV.SSY.HHE. 2009-06-18T23:12:17.69 0.3 undecidable manual Pg 168 57.7977 -0.187 79
IV.ECNV.HHE. 2009-06-18T23:12:16.62 0.6 undecidable manual Sg 248 20.868 -0.695 48
IV.GALF.HHZ. 2009-06-18T23:12:15.04 0.3 undecidable manual Pg 279 32.4453 0.679 72
IV.HCRL.HHN. 2009-06-18T23:12:15.31 0.3 undecidable manual Pg 168 43.4232 -0.513 76
IV.MMME.HHE. 2009-06-18T23:12:15.33 0.3 undecidable manual Pg 43 41.0256 -0.162 82
IV.ECNV.HHE. 2009-06-18T23:12:13.91 0.3 undecidable manual Pg 248 20.868 0.9 67
IV.MEU.SHZ. 2009-06-18T23:12:13.77 10.0 undecidable manual Pg 0 0 0
GE.MATE.HHE. 2009-06-18T23:12:11.21 10.0 undecidable manual Pg 0 0 0
IV.HMDC.HHN. 2009-06-18T23:11:56.95 10.0 undecidable manual Pg 0 0 0
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