The problem that you encounter maybe it derives from the projection of your geodataframe. The explore() method uses the crs EPSG:4327

First you can check your crs(Coordinate Reference System) by using:

• print(yourgeodataframe.crs)

Then change your crs of your data frame to EPSG:4326 by:

• yourgeodataframe = yourgeodataframe.to_crs('EPSG:4326')

Finally try the explore() method again.