Due to the warm period in May 2018, we experienced some forest fires in Norway. At least one of these could be seen directly on a Sentinel-2A scene. Read the full article from the Ombo event at NRK here, and take a look at the Sentinel-2 satellite image in multiple RGB composites in our portal here.
Another episode where Sentinel-2 data could detect a nature hazard was during the oil spill situation from Alnaelva in the Oslofjord: