Earthquake with magnitude of ML 1.5 on date 31-07-2010 and time 00:41:38 (UTC) in region Confine Italia Svizzera (SVIZZERA)

A magnitude ML 1.5 earthquake occured in region: Confine Italia Svizzera (SVIZZERA), on

  • 31-07-2010 00:41:38 (UTC)
  • 31-07-2010 02:41:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.5810, 9.9430 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
Livigno SO 15 6389 6389

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 2.2
ML 1.5
2010-07-31
00:41:38
46.581 9.943 9 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1090509
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2010-07-31 00:41:38 ± 0.12
Latitude 46.5810 ± 0.0063
Longitude 9.9430 ± 0.0092
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1090509

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 632
Semi-minor axis of confidence ellipse (meter) 506
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 229
Circular confidence region, given by single value of horizontal uncertainty (meter) 989.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 93
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.45
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.42358
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 1090509
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 21:04:33

Md:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations
Type of magnitude Md
Reference to an origin 1090509
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 21:04:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.IACL.HHZ. 2010-07-31T00:41:54.47 10.0 undecidable manual Pg 0 0 0
SI.MOSI.BHN. 2010-07-31T00:41:53.96 0.6 undecidable manual Sg 85 46.4202 0.443 45
MN.TUE.HHZ. 2010-07-31T00:41:53.57 0.6 undecidable manual Sg 255 47.0196 -0.115 48
IV.BRMO.HHZ. 2010-07-31T00:41:49.51 0.6 undecidable manual Sg 109 34.8429 -0.918 38
SI.MOSI.BHN. 2010-07-31T00:41:47.21 0.3 undecidable manual Pg 85 46.4202 0.159 72
CH.FUORN.HHZ. 2010-07-31T00:41:47.30 0.6 undecidable manual Sg 80 24.8529 -0.081 51
MN.TUE.HHZ. 2010-07-31T00:41:47.22 0.1 undecidable manual Pg 255 47.0196 0.072 98
CH.DAVOX.HHZ. 2010-07-31T00:41:46.21 0.3 undecidable manual Sg 348 22.6551 -0.476 70
CH.BERNI.HHZ. 2010-07-31T00:41:45.34 0.3 undecidable manual Sg 162 19.5693 -0.35 72
IV.BRMO.HHZ. 2010-07-31T00:41:45.21 0.1 undecidable manual Pg 109 34.8429 -0.057 100
CH.FUORN.HHZ. 2010-07-31T00:41:43.66 0.1 undecidable manual Pg 80 24.8529 0.152 100
CH.DAVOX.HHZ. 2010-07-31T00:41:43.34 0.1 undecidable manual Pg 348 22.6551 0.233 99
CH.BERNI.HHZ. 2010-07-31T00:41:42.87 0.1 undecidable manual Pg 162 19.5693 0.338 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