5.4 Earthquake in Diamond Bar Posted by David R. Duringer, JD, LL.M on July 29, 2008 Major jolt, long duration here in Ladera Ranch:http://www.data.scec.org/recenteqs/Quakes/ci14383980.html Fire at will:FacebookTwitterLinkedInEmailPrintLike this:LikeBe the first to like this post.