Earthquake with magnitude of Md 1.6 on date 25-04-2013 and time 20:38:11 (Italy) in region Confine Italia Svizzera (SVIZZERA)

A magnitude Md 1.6 earthquake occured in region: Confine Italia Svizzera (SVIZZERA), on

  • 25-04-2013 18:38:11 (UTC)
  • 25-04-2013 20:38:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.0320, 7.3860 at 10 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
Bionaz AO 18 236 236
Oyace AO 20 219 455

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 1.6 2013-04-25
18:38:11
46.0317 7.3863 10 2015-01-20
11:25:34
Bollettino Sismico Italiano INGV 3465351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2013-04-25 18:38:11 ± 0.28
Latitude 46.0317 ± 0.0189
Longitude 7.3863 ± 0.0246
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 3465351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2360
Semi-minor axis of confidence ellipse (meter) 1610
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 325
Circular confidence region, given by single value of horizontal uncertainty (meter) 2360.0
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 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.05036
Epicentral distance of station farthest from the epicenter (degree) 0.36962
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 4
Type of magnitude Md
Reference to an origin 3465351
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-05-09 08:43:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.SATI.HHZ. 2013-04-25T18:38:25.28 0.1 undecidable manual S 115 41.0256 50 0.34 92
GU.REMY.HHZ. 2013-04-25T18:38:21.27 0.1 undecidable manual S 220 27.8499 50 -0.16 98
IV.MRGE.HHZ. 2013-04-25T18:38:19.21 0.1 undecidable manual P 221 38.4282 50 0.44 90
GU.SATI.HHZ. 2013-04-25T18:38:18.65 0.1 undecidable manual P 115 41.0256 50 -0.52 88
GU.REMY.HHZ. 2013-04-25T18:38:17.19 0.1 undecidable manual P 220 27.8499 50 0.04 100
CH.DIX.HHZ. 2013-04-25T18:38:15.89 0.1 undecidable manual S 17 5.5944 151 0.63 90
CH.DIX.HHZ. 2013-04-25T18:38:12.72 0.1 undecidable manual P 17 5.5944 151 -0.87 81
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