Earthquake with magnitude of ML 2.3 on date 21-01-2007 and time 12:10:31 (Italy) in region Costa Sarda Nuorese (Nuoro)

A magnitude ML 2.3 earthquake occured in region: Costa Sarda Nuorese (Nuoro), on

  • 21-01-2007 11:10:31 (UTC)
  • 21-01-2007 12:10:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.6720, 9.8790 at 0 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
Posada NU 14 2965 2965
Budoni OT 16 5133 8098
Torpè NU 18 2880 10978
Siniscola NU 19 11486 22464

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km SE of Olbia (59368 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 2.7
ML 2.3
2007-01-21
11:10:31
40.672 9.879 1 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 610799
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2007-01-21 11:10:31 ± 0.13
Latitude 40.6720 ± 0.0081
Longitude 9.8790 ± 0.0166
Depth (km) 1 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 610799

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1421
Semi-minor axis of confidence ellipse (meter) 789
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 72
Circular confidence region, given by single value of horizontal uncertainty (meter) 1664.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 128
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 2.69077
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.6
Num. used stations
Type of magnitude ML
Reference to an origin 610799
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 11:39:16

Md:2.7

Field Value
Value 2.7
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 610799
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 11:39:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GIUL.BHZ. 2007-01-21T11:11:16.79 0.3 undecidable manual Pg 70 298.6788 -0.501 19
IV.TOLF.HHZ. 2007-01-21T11:11:09.07 0.3 undecidable manual Pg 48 234.5874 -0.236 37
IV.MAON.HHZ. 2007-01-21T11:11:07.75 0.3 undecidable manual Pg 28 220.8123 0.156 41
.SMPL.BHZ. 2007-01-21T11:11:00.33 0.1 undecidable manual Pg 343 165.3123 0.245 73
HL.KEK.BHZ. 2007-01-21T11:10:59.00 10.0 undecidable manual Sg 0 0 0
HL.KEK.BHZ. 2007-01-21T11:10:56.93 10.0 undecidable manual Pg 0 0 0
MN.VSL.HHZ. 2007-01-21T11:10:55.98 0.1 undecidable manual Pg 198 137.2626 0.219 81
IV.OSKI.BHZ. 2007-01-21T11:10:44.73 0.1 positive manual Pg 285 66.8775 -0.185 94
IV.DGI.BHZ. 2007-01-21T11:10:40.90 0.1 positive manual Pg 210 45.5211 -0.062 100
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