Earthquake with magnitude of ML 2.3 on date 23-12-2009 and time 14:37:56 (Italy) in region 9 km SE Maletto (CT)

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

  • 23-12-2009 13:37:56 (UTC)
  • 23-12-2009 14:37:56 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7860, 14.9470 at 30 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Maletto CT 9 3920 3920
Bronte CT 10 19172 23092
Randazzo CT 10 10900 33992
Santa Domenica Vittoria ME 15 980 34972
Maniace CT 15 3765 38737
Moio Alcantara ME 16 717 39454
Milo CT 16 1087 40541
Adrano CT 17 36122 76663
Zafferana Etnea CT 17 9517 86180
Ragalna CT 17 3924 90104
Biancavilla CT 17 24007 114111
Roccella Valdemone ME 17 666 114777
Malvagna ME 18 733 115510
Sant'Alfio CT 18 1582 117092
Linguaglossa CT 18 5403 122495
Castiglione di Sicilia CT 19 3215 125710
Santa Maria di Licodia CT 20 7641 133351

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km NW of Acireale (52622 inhabitants)
34 Km NW of Catania (314555 inhabitants)
70 Km SW of Messina (238439 inhabitants)
71 Km SW of Reggio di Calabria (183035 inhabitants)
84 Km E of Caltanissetta (63360 inhabitants)
86 Km NW of Siracusa (122291 inhabitants)
98 Km N of Ragusa (73313 inhabitants)
100 Km NE of Vittoria (63339 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 2009-12-23
13:37:56
37.786 14.947 30 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1001329
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-12-23 13:37:56 ± 0.2
Latitude 37.7860 ± 0.0081
Longitude 14.9470 ± 0.0114
Depth (km) 30 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1001329

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 895
Semi-minor axis of confidence ellipse (meter) 700
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 118
Circular confidence region, given by single value of horizontal uncertainty (meter) 1345.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.46
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.85256
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 9
Magnitude information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 1001329
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 19:11:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAVL.HHN. 2009-12-23T13:38:24.41 0.6 undecidable manual Sg 170 93.0402 -0.017 46
IV.IVPL.HHZ. 2009-12-23T13:38:17.51 0.6 undecidable manual Sg 3 65.49 0.134 48
IV.HCRL.HHE. 2009-12-23T13:38:15.01 0.3 undecidable manual Sg 172 56.2992 -0.07 74
IV.MPAZ.HHN. 2009-12-23T13:38:13.82 0.3 undecidable manual Pg 78 94.6386 0.918 53
IV.HAVL.HHN. 2009-12-23T13:38:12.27 0.3 undecidable manual Pg 170 93.0402 -0.383 64
IV.GALF.HHZ. 2009-12-23T13:38:10.17 0.3 undecidable manual Sg 256 34.3434 0.218 74
IV.MMME.HHZ. 2009-12-23T13:38:09.05 0.6 undecidable manual Sg 58 31.5462 -0.309 49
IV.MSRU.HHN. 2009-12-23T13:38:09.61 0.1 undecidable manual Pg 43 72.2721 0.046 96
IV.HVZN.HHE. 2009-12-23T13:38:09.58 0.3 undecidable manual Pg 197 70.4739 0.277 69
IV.IVPL.HHZ. 2009-12-23T13:38:08.36 0.3 undecidable manual Pg 3 65.49 -0.223 70
IV.ECNV.HHZ. 2009-12-23T13:38:08.71 0.6 undecidable manual Sg 224 29.4483 -0.234 50
IV.HCRL.HHE. 2009-12-23T13:38:06.90 0.6 undecidable manual Pg 172 56.2992 -0.358 46
IV.ECNV.HHZ. 2009-12-23T13:38:04.44 0.3 undecidable manual Pg 224 29.4483 0.735 64
IV.MMME.HHZ. 2009-12-23T13:38:03.73 0.1 undecidable manual Pg 58 31.5462 -0.222 100
IV.GALF.HHZ. 2009-12-23T13:38:03.78 0.3 undecidable manual Pg 256 34.3434 -0.514 69
IV.GIB.HHN. 2009-12-23T13:37:43.95 10.0 undecidable manual Pg 0 0 0
IV.SSY.HHE. 2009-12-23T13:37:38.34 10.0 undecidable manual Pg 0 0 0
IV.CRE.HHE. 2009-12-23T13:37:38.54 10.0 undecidable manual Pg 0 0 0
IV.CSLB.SHZ. 2009-12-23T13:37:30.70 10.0 undecidable manual Pg 0 0 0
IV.CRMI.HHZ. 2009-12-23T13:37:29.38 10.0 undecidable manual Pg 0 0 0
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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