Volcano flank instability imaged by historical air photos correlation during the 1975 M.7.7 Kalapana earthquake (Kīlauea, Hawaii)
Here attached historical aerial photos used to make optical imagery correlation during the 1975 Kalapana earthquake. These data were purchased from USGS archive and now are free to download for any user. However, here I reported only a selection of photos used for our analysis even if we bought more data.
Steps to reproduce
We purchased the data from the USGS data base. After that, we crop and prepare the image in order to make the Digital elevation model and the orthomosaics using Metashape software. Using orthomosaics of pre and post- earthquake we are able to make the image correlation using COSI-Corr software developped by Caltech University obtaining displacement maps.