have a new version of Vrui with usability improvements. Get it from
http://stout.idav.ucdavis.edu/Software/Vrui/Vrui-5.1-001.tar.gz
Installation works the same as before.

The Earthquake viewer is part of the Vrui example programs. Inside
Vrui's source directory, cd into ExamplePrograms, and then build:

make INSTALLDIR=/opt/Vrui-5.1-Examples -j8

followed by

make INSTALLDIR=/opt/Vrui-5.1-Examples install

Here's the new Nanotech Construction Kit with collaborative component:
http://stout.idav.ucdavis.edu/Software/NCK/NCK-2.3.tar.gz

To build, you have to point it at your Vrui installation. Say you put
Vrui into /opt/Vrui-5.1 (recommended) via

make INSTALLDIR=/opt/Vrui-5.1 STEAMVRDIR=...../common/SteamVR -j8

followed by

make INSTALLDIR=/opt/Vrui-5.1 STEAMVRDIR=...../common/SteamVR install
make INSTALLDIR=/opt/Vrui-5.1 STEAMVRDIR=...../common/SteamVR
installudevrules

Then build NCK by

make INSTALLDIR=/opt/NCK-2.3 VRUI_MAKEDIR=/opt/Vrui-5.1/share/make -j8

and then

make INSTALLDIR=/opt/NCK-2.3 VRUI_MAKEDIR=/opt/Vrui-5.1/share/make install