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Satellite measurements of coseismic displacements are typicallybased on synthetic aperture radar (SAR) interferometry or amplitude tracking,or based on optical data such as from Landsat, Sentinel-2, SPOT, ASTER,very high-resolution satellites, or air photos. Here, we evaluate a new classof optical satellite images for this purpose – data from cubesats. Morespecific, we investigate the PlanetScope cubesat constellation for horizontalsurface displacements by the 14 November 2016 <i>M</i><sub>w</sub> 7.8 Kaikoura,New Zealand, earthquake. Single PlanetScope scenes are 2–4 m-resolutionvisible and near-infrared frame images of approximately 20–30 km  ×  9–15 km in size, acquired in continuous sequence along an orbit ofapproximately 375–475 km height. From single scenes or mosaics from beforeand after the earthquake, we observe surface displacements of up to almost 10 mand estimate matching accuracies from PlanetScope data between ±0.25 and ±0.7 pixels (∼ ±0.75 to ±2.0 m), depending ontime interval and image product type. Thereby, the most optimistic accuracyestimate of ±0.25 pixels might actually be typical for the final,sun-synchronous, and near-polar-orbit PlanetScope constellation whenunrectified data are used for matching. This accuracy, the daily revisitanticipated for the PlanetScope constellation for the entire land surface ofEarth, and a number of other features, together offer new possibilities forinvestigating coseismic and other Earth surface displacements and managingrelated hazards and disasters, and complement existing SAR and opticalmethods. For comparison and for a better regional overview we also match thecoseismic displacements by the 2016 Kaikoura earthquake using Landsat 8 andSentinel-2 data

natural hazards and earth system sciences

Coseismic displacements of the 14 November 2016 &amp;lt;i&amp;gt;M&amp;lt;/i&amp;gt;&amp;lt;sub&amp;gt;w&amp;lt;/sub&amp;gt; 7.8 Kaikoura, New Zealand, earthquake using the Planet optical cubesat constellation