Earthquake with magnitude of ML 1.6 on date 26-12-2011 and time 09:19:54 (UTC) in region 11 km E Valfurva (SO)

A magnitude ML 1.6 earthquake occured in region: 11 km E Valfurva (SO), on

  • 26-12-2011 09:19:54 (UTC)
  • 26-12-2011 10:19:54 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.4580, 10.5560 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Valfurva SO 11 2638 2638
Bormio SO 14 4121 6759
Peio TN 15 1860 8619
Valdisotto SO 16 3556 12175
Stelvio BZ 16 1161 13336
Prato allo Stelvio BZ 18 3474 16810

Municipalities with at least 50000 inhabitants

An earthquake occurred to
61 Km NW of Trento (117317 inhabitants)
62 Km W of Bolzano (106441 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 2.0
ML 1.6
2011-12-26
09:19:54
46.458 10.556 5 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1326149
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-12-26 09:19:54 ± 0.17
Latitude 46.4580 ± 0.0099
Longitude 10.5560 ± 0.0117
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1326149

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1105
Semi-minor axis of confidence ellipse (meter) 947
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 13
Circular confidence region, given by single value of horizontal uncertainty (meter) 1421.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 102
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.55
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.68438
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 1326149
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 02:22:50

Md:2.0

Field Value
Value 2.0
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 1326149
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 02:22:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TEOL.HHZ. 2011-12-26T09:20:21.92 10.0 undecidable manual Pg 0 0 0
IV.ALJA.HHZ. 2011-12-26T09:20:20.10 10.0 undecidable manual Pg 0 0 0
IV.MAGA.HHN. 2011-12-26T09:20:17.86 0.6 undecidable manual Sg 176 75.9684 -0.713 38
IV.APPI.EHN. 2011-12-26T09:20:11.19 0.3 undecidable manual Sg 87 51.4152 -0.821 58
IV.MAGA.HHN. 2011-12-26T09:20:08.89 0.1 undecidable manual Pg 176 75.9684 0.497 84
SI.ABSI.HHE. 2011-12-26T09:20:06.93 0.1 undecidable manual Pg 62 65.49 0.145 92
IV.APPI.EHN. 2011-12-26T09:20:04.89 0.1 undecidable manual Pg 87 51.4152 0.285 92
SI.MOSI.HHZ. 2011-12-26T09:20:00.68 0.3 undecidable manual Sg 358 17.5713 -0.141 75
IV.BRMO.HHE. 2011-12-26T09:19:59.34 0.1 undecidable manual Sg 278 14.1747 -0.349 97
SI.MOSI.HHZ. 2011-12-26T09:19:58.30 0.1 undecidable manual Pg 358 17.5713 0.157 100
IV.BRMO.HHE. 2011-12-26T09:19:57.79 0.3 undecidable manual Pg 278 14.1747 0.298 73
IV.VMG.SHZ. 2011-12-26T09:19:55.31 10.0 undecidable manual Pg 0 0 0
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