Earthquake with magnitude of ML 2.1 on date 29-12-2005 and time 16:52:14 (Italy) in region Costa Siracusana (Siracusa)

A magnitude ML 2.1 earthquake occured in region: Costa Siracusana (Siracusa), on

  • 29-12-2005 15:52:14 (UTC)
  • 29-12-2005 16:52:14 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.1610, 15.2830 at 9 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
Priolo Gargallo SR 8 12091 12091
Augusta SR 10 36305 48396
Siracusa SR 11 122291 170687
Melilli SR 14 13621 184308
Floridia SR 14 22762 207070
Solarino SR 16 8091 215161

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km N of Siracusa (122291 inhabitants)
42 Km SE of Catania (314555 inhabitants)
51 Km S of Acireale (52622 inhabitants)
56 Km NE of Ragusa (73313 inhabitants)
57 Km NE of Modica (54633 inhabitants)
70 Km E of Vittoria (63339 inhabitants)
92 Km E of Gela (75827 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 1.9
ML 2.1
2005-12-29
15:52:14
37.161 15.283 9 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 546549
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2005-12-29 15:52:14 ± 0.65
Latitude 37.1610 ± 0.0189
Longitude 15.2830 ± 0.0350
Depth (km) 9 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 546549

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3316
Semi-minor axis of confidence ellipse (meter) 1737
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 115
Circular confidence region, given by single value of horizontal uncertainty (meter) 3744.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 304
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 5
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) 0.28688
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.7
Num. used stations
Type of magnitude ML
Reference to an origin 546549
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:32:18

Md:1.9

Field Value
Value 1.9
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 546549
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:32:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAVL.BHN. 2005-12-29T15:52:23.98 0.3 undecidable manual Sg 213 26.4513 -0.262 36
IV.AGST.SHN. 2005-12-29T15:52:22.93 10.0 undecidable manual Sg 0 0 0
IV.SSY.BHE. 2005-12-29T15:52:21.85 0.3 undecidable manual Sg 269 18.4704 0.247 37
IV.PZI.SHZ. 2005-12-29T15:52:21.14 0.3 undecidable manual Pg 249 31.8459 0.28 72
IV.AGST.SHN. 2005-12-29T15:52:20.41 10.0 undecidable manual Pg 0 0 0
IV.HAVL.BHN. 2005-12-29T15:52:19.98 0.1 undecidable manual Pg 213 26.4513 0.098 100
IV.SSY.BHE. 2005-12-29T15:52:18.10 0.1 undecidable manual Pg 269 18.4704 -0.299 97
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