GDB shows that /usr/lib/libexpat.so.1 crashes trying to parse an XML file.
Searching with Google I have discovered that the file is /etc/fonts/conf.d/65-fonts-persian.conf (a symbolic link to /etc/fonts/conf.avail/65-fonts-persian.conf).
Removing that symbolic link, GoogleEarth 7 starts correctly ... but ...

It is very slow.
It crashes on exit.
Panoramio photos are displayed but, clicking on them, nothing happens.
Missing a lot of features available in the Windows version.
The "coordinates bug" has come back for non US/EN users (GE displays the wrong location).

In short, as usual, GE for Linux is pure garbage!

To solve the coordinates bug:
edit (as root) the script /opt/google/earth/free/googleearth
before the line LD_LIBRARY_PATH=.:$LD_LIBRARY_PATH ./googleearth-bin "$@" add

export LC_NUMERIC=en_US.UTF-8