Earthquake with magnitude of ML 1.0 on date 18-08-2012 and time 04:51:12 (UTC) in region 5 km N Valdidentro (SO)

A magnitude ML 1.0 earthquake occured in region: 5 km N Valdidentro (SO), on

  • 18-08-2012 04:51:12 (UTC)
  • 18-08-2012 06:51:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.5340, 10.2910 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
Valdidentro SO 5 4125 4125
Bormio SO 10 4121 8246
Livigno SO 12 6389 14635
Valfurva SO 12 2638 17273
Valdisotto SO 12 3556 20829
Tubre BZ 18 977 21806

Municipalities with at least 50000 inhabitants

An earthquake occurred to
82 Km W of Bolzano (106441 inhabitants)
82 Km NW of Trento (117317 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
Reviewed
Rev100
ML 1.0 2012-08-18
04:51:12
46.5307 10.2848 10 2014-10-21
12:08:56
Sala Sismica INGV-Roma 2019681
Bulletin
Rev1000
ML 1.0 2012-08-18
04:51:12
46.5337 10.2912 10 2014-09-19
08:14:18
Bollettino Sismico Italiano INGV 2657391
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2012-08-18 04:51:12 ± 0.16
Latitude 46.5337 ± 0.0099
Longitude 10.2912 ± 0.0131
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 2657391

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 924
Semi-minor axis of confidence ellipse (meter) 841
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 115
Circular confidence region, given by single value of horizontal uncertainty (meter) 920.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 97
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.46
Epicentral distance of station closest to the epicenter (degree) 0.08813
Epicentral distance of station farthest from the epicenter (degree) 0.50272
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 2019681
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2012-08-18 04:55:57

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 2
Type of magnitude ML
Reference to an origin 2657391
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2014-09-18 12:42:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MABI.HHZ. 2012-08-18T04:51:29.57 0.3 undecidable manual S 162 55.7997 50 -0.69 61
CH.DAVOX.HHZ. 2012-08-18T04:51:26.11 0.1 undecidable manual S 311 41.625 50 -0.36 92
IV.MABI.HHZ. 2012-08-18T04:51:23.37 0.1 undecidable manual P 162 55.7997 50 0.58 84
CH.BERNI.HHZ. 2012-08-18T04:51:21.35 0.1 undecidable manual S 237 24.4533 112 -0.36 95
CH.DAVOX.HHZ. 2012-08-18T04:51:20.98 0.1 undecidable manual P 311 41.625 50 0.37 92
SI.MOSI.HHZ. 2012-08-18T04:51:20.54 0.1 undecidable manual S 65 21.7671 114 -0.31 96
CH.BERNI.HHZ. 2012-08-18T04:51:18.19 0.1 undecidable manual P 237 24.4533 112 0.33 95
SI.MOSI.HHZ. 2012-08-18T04:51:17.51 0.1 undecidable manual P 65 21.7671 114 0.15 100
CH.FUORN.HHZ. 2012-08-18T04:51:17.15 0.1 undecidable manual S 348 9.7791 135 -0.23 100
CH.FUORN.HHZ. 2012-08-18T04:51:15.70 0.1 undecidable manual P 348 9.7791 135 0.34 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MABI.HHN. ML:0.7 0.000011599999999999999 0.66 AML other m 2012-08-18T04:51:30.37
IV.MABI.HHE. ML:1.0 0.000022 0.72 AML other m 2012-08-18T04:51:30.25
SI.MOSI.HHN. ML:1.2 0.00011999999999999999 0.36 AML other m 2012-08-18T04:51:21.99
SI.MOSI.HHE. ML:1.0 0.0000658 0.4 AML other m 2012-08-18T04:51:22.80
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