Earthquake with magnitude of ML 2.1 on date 02-02-2009 and time 15:42:53 (UTC) in region Svizzera (SVIZZERA)

A magnitude ML 2.1 earthquake occured in region: Svizzera (SVIZZERA), on

  • 02-02-2009 15:42:53 (UTC)
  • 02-02-2009 16:42:53 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 47.0350, 9.2650 at 5 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

No Italian municipalities within 100 km from the epicenter with at least 50000 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 2.4
ML 2.1
2009-02-02
15:42:53
47.035 9.265 5 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 741969
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-02-02 15:42:53 ± 1.62
Latitude 47.0350 ± 0.0728
Longitude 9.2650 ± 0.0910
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 741969

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 9737
Semi-minor axis of confidence ellipse (meter) 4263
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 322
Circular confidence region, given by single value of horizontal uncertainty (meter) 10640.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 298
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.19
Epicentral distance of station closest to the epicenter (degree) 0.49103
Epicentral distance of station farthest from the epicenter (degree) 1.45510
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 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 741969
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:01:57

Md:2.4

Field Value
Value 2.4
Uncertainty 0.4
Num. used stations
Type of magnitude Md
Reference to an origin 741969
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:01:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.APPI.EHZ. 2009-02-02T15:43:40.95 0.6 undecidable manual Sg 112 161.5161 0.046 40
IV.APPI.EHZ. 2009-02-02T15:43:20.98 0.3 undecidable manual Pg 112 161.5161 -0.097 59
MN.TUE.HHZ. 2009-02-02T15:43:14.58 0.6 undecidable manual Sg 174 62.7927 0.028 50
IV.BRMO.HHZ. 2009-02-02T15:43:10.54 0.3 undecidable manual Pg 126 104.6175 -1.773 33
MN.TUE.HHZ. 2009-02-02T15:43:05.90 0.1 positive manual Pg 174 62.7927 0.037 100
CH.DAVOX.HHZ. 2009-02-02T15:43:05.63 0.3 undecidable manual Pg 121 54.501 1.04 55
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
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