Earthquake with magnitude of ML 2.1 on date 21-12-2005 and time 22:10:26 (Italy) in region 3 km SE Santa Venerina (CT)

A magnitude ML 2.1 earthquake occured in region: 3 km SE Santa Venerina (CT), on

  • 21-12-2005 21:10:26 (UTC)
  • 21-12-2005 22:10:26 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.6630, 15.1550 at 12 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
Santa Venerina CT 3 8592 8592
Acireale CT 6 52622 61214
Zafferana Etnea CT 6 9517 70731
Aci Catena CT 7 29851 100582
Aci Sant'Antonio CT 7 17984 118566
Milo CT 8 1087 119653
Viagrande CT 8 8563 128216
Giarre CT 8 27659 155875
Aci Bonaccorsi CT 8 3524 159399
Trecastagni CT 8 10910 170309
Riposto CT 9 14838 185147
Sant'Alfio CT 9 1582 186729
Valverde CT 10 7840 194569
Pedara CT 10 14102 208671
San Giovanni la Punta CT 11 23060 231731
Mascali CT 11 14282 246013
San Gregorio di Catania CT 12 11966 257979
Aci Castello CT 12 18723 276702
Tremestieri Etneo CT 12 20589 297291
Nicolosi CT 12 7463 304754
Sant'Agata li Battiati CT 13 9479 314233
Mascalucia CT 13 31958 346191
Gravina di Catania CT 14 25838 372029
San Pietro Clarenza CT 15 7743 379772
Fiumefreddo di Sicilia CT 15 9623 389395
Piedimonte Etneo CT 16 3963 393358
Camporotondo Etneo CT 17 5023 398381
Belpasso CT 18 28108 426489
Catania CT 19 314555 741044
Calatabiano CT 19 5308 746352
Ragalna CT 19 3924 750276
Linguaglossa CT 20 5403 755679

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km N of Acireale (52622 inhabitants)
19 Km NE of Catania (314555 inhabitants)
66 Km SW of Reggio di Calabria (183035 inhabitants)
68 Km N of Siracusa (122291 inhabitants)
69 Km SW of Messina (238439 inhabitants)
90 Km NE of Ragusa (73313 inhabitants)
96 Km NE of Modica (54633 inhabitants)
96 Km NE of Vittoria (63339 inhabitants)
98 Km E of Caltanissetta (63360 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
2005-12-21
21:10:26
37.663 15.155 13 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 545399
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2005-12-21 21:10:26 ± 0.36
Latitude 37.6630 ± 0.0153
Longitude 15.1550 ± 0.0193
Depth (km) 13 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 545399

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2316
Semi-minor axis of confidence ellipse (meter) 632
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 44
Circular confidence region, given by single value of horizontal uncertainty (meter) 2404.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 250
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) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.14569
Epicentral distance of station farthest from the epicenter (degree) 0.70327
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 545399
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:31:08

Md:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 545399
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:31:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAVL.BHN. 2005-12-21T21:10:51.83 0.3 undecidable manual Sg 182 78.0663 0.223 34
IV.AGST.SHN. 2005-12-21T21:10:42.13 0.3 undecidable manual Sg 172 45.5211 0.185 36
IV.HAVL.BHN. 2005-12-21T21:10:40.19 0.1 undecidable manual Pg 182 78.0663 -0.369 86
IV.SSY.BHE. 2005-12-21T21:10:37.00 0.1 undecidable manual Pg 187 56.499 0.042 97
IV.AGST.SHN. 2005-12-21T21:10:35.19 0.1 undecidable manual Pg 172 45.5211 0.057 99
IV.ESLN.BHE. 2005-12-21T21:10:33.26 0.1 undecidable manual Sg 282 16.1727 -0.154 51
IV.ESLN.BHE. 2005-12-21T21:10:30.52 0.1 undecidable manual Pg 282 16.1727 0.189 100
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