Bárðarbunga GPS displacements
Horizontal displacements Sept 2014 - April 2015
Displacement velocities compared
This figure compares the displacement velocity during the last month of measurements (green arrows) to the displacement speed during all of the period, i.e. from 21 Sept. 2014 to 19 April 2015 (blue arrows).
The purpose of this comparison is to monitor velocity changes in displacements towards Bárðarbunga caldera. The date 21 Sept. was chosen because by then, displacements caused by the propagation of the dyke had become negligible, and from then on the displacement signals from stations around Bárðarbunga can be directly linked to the subsidence of the caldera. Monitoring ceased 19 April 2015.
Displacements yesterday and for the last three days
This image shows earthquakes and horizontal GPS-displacements together on one picture. The earthquakes have different colours representing how long it's been since the earthquake was measured. The GPS displacements are shown over two periods: The red arrows show displacements from yesterday and the green arrows show displacement over the past three days. The circles around the arrows represent uncertainty in the measurements. Enlarge the image. Terms, see below.
Displacements since the onset of the events
The image shows earthquakes and GPS-displacements together in one picture. The earthquakes have different colours representing how long it's been since they were measured. GPS displacements are shown with black arrows. The circles around the arrows represent uncertainty in the measurements. Click here to enlarge the image.
Terms and conditions
GPS displacements presented on this site are from preliminary analysis of data recorded by the Icelandic Meteorological Office and other institutions. Displacements may change upon further analysis and review. For any significant use of this data, please contact IMO and IES.
This data should be clearly referenced as: "Preliminary analysed data by the GPS monitoring group of the Icelandic Meteorological Office, the Institute of Earth Sciences University of Iceland and GNS Science." Date of delivery from the data bank must follow.
Further information on usage of data from IMO's web-site is given under pages about IMO.