It's being reported that the degree of liquifaction in this 6.3 quake was orders of magnitude worse than in last fall's 7.1 quake. Must be crazy to see the water and silt seeping up through everything.

ETS members in quake country -- do you all know the liquifaction potential in the areas in which your homes and workplaces reside?

As I recall from news reports of the 1989 Loma Prieta quake, San Francisco's heavily damaged Marina District was known to be on land prone to liquifaction.


Video:
http://tvnz.co.nz/national-news/liquefaction-across-christchurch-2-23-video-4039338

http://www.nzherald.co.nz/natural-disasters/news/article.cfm?c_id=68&objectid=10708723

Christchurch earthquake: Levels of liquefaction 300 - 500 pc worse

By Hayden Donnell and Paul Harper

http://www.es.ucsc.edu/~es10/fieldtripEarthQ/Damage1.html