Earthquake with magnitude of ML 2.1 on date 13-09-2009 and time 20:53:53 (Italy) in region 6 km SW Caltagirone (CT)

A magnitude ML 2.1 earthquake occured in region: 6 km SW Caltagirone (CT), on

  • 13-09-2009 18:53:53 (UTC)
  • 13-09-2009 20:53:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.1910, 14.4760 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
Caltagirone CT 6 38686 38686
Niscemi CL 9 27558 66244
San Michele di Ganzaria CT 11 3245 69489
Mazzarrone CT 14 4078 73567
Grammichele CT 15 13418 86985
San Cono CT 15 2697 89682
Mirabella Imbaccari CT 15 4912 94594
Acate RG 18 10954 105548

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km NE of Gela (75827 inhabitants)
27 Km N of Vittoria (63339 inhabitants)
37 Km NW of Ragusa (73313 inhabitants)
45 Km NW of Modica (54633 inhabitants)
50 Km SE of Caltanissetta (63360 inhabitants)
64 Km SW of Catania (314555 inhabitants)
74 Km W of Siracusa (122291 inhabitants)
77 Km SW of Acireale (52622 inhabitants)
80 Km E of Agrigento (59770 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 2.1
2009-09-13
18:53:53
37.191 14.476 30 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 964189
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-09-13 18:53:53 ± 0.35
Latitude 37.1910 ± 0.0171
Longitude 14.4760 ± 0.0135
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 964189

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1468
Semi-minor axis of confidence ellipse (meter) 1438
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 211
Circular confidence region, given by single value of horizontal uncertainty (meter) 2247.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 156
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.60075
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 964189
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 18:25:17

Md:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 964189
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 18:25:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.AGST.EHZ. 2009-09-13T18:54:14.20 0.1 undecidable manual Sg 84 66.6777 -0.163 93
IV.HAVL.HHE. 2009-09-13T18:54:13.91 0.1 undecidable manual Sg 114 62.6928 0.567 82
IV.ECNV.HHZ. 2009-09-13T18:54:12.07 10.0 undecidable manual Pg 0 0 0
IV.SSY.HHZ. 2009-09-13T18:54:11.40 0.1 undecidable manual Sg 94 52.9026 0.463 87
IV.CSLB.SHZ. 2009-09-13T18:54:09.68 10.0 undecidable manual Pg 0 0 0
IV.HCRL.HHE. 2009-09-13T18:54:09.90 0.1 undecidable manual Sg 78 50.2164 -0.368 92
IV.HMDC.HHZ. 2009-09-13T18:54:07.44 0.1 undecidable manual Sg 133 37.4292 0.148 97
IV.ROVR.HHE. 2009-09-13T18:54:06.67 10.0 undecidable manual Pg 0 0 0
IV.AGST.EHZ. 2009-09-13T18:54:05.09 0.1 undecidable manual Pg 84 66.6777 -0.355 89
IV.HAVL.HHE. 2009-09-13T18:54:04.80 0.1 undecidable manual Pg 114 62.6928 -0.059 95
IV.GALF.HHN. 2009-09-13T18:54:04.78 0.1 undecidable manual Pg 8 58.1973 0.565 85
IV.HVZN.HHZ. 2009-09-13T18:54:03.62 0.3 undecidable manual Sg 94 21.1677 -0.441 70
IV.SSY.HHZ. 2009-09-13T18:54:03.46 0.1 undecidable manual Pg 94 52.9026 -0.007 97
IV.RAFF.HHN. 2009-09-13T18:54:02.97 0.1 undecidable manual Sg 289 10.6782 0.341 100
IV.HCRL.HHE. 2009-09-13T18:54:02.75 0.1 undecidable manual Pg 78 50.2164 -0.331 92
IV.HMDC.HHZ. 2009-09-13T18:54:01.39 0.1 undecidable manual Pg 133 37.4292 0.028 99
IV.HVZN.HHZ. 2009-09-13T18:53:59.23 0.1 undecidable manual Pg 94 21.1677 -0.27 97
IV.RAFF.HHN. 2009-09-13T18:53:58.50 0.1 undecidable manual Pg 289 10.6782 -0.171 99
IV.MGAB.HHE. 2009-09-13T18:53:46.08 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
Waveforms Seismic signals in miniseed + resp format Download