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If you’ve not come across them, Paul Nichols has created several time lapse earthquake maps. Working at the University of Canterbury's Digital Media Group, he takes USGS or GeoNet data and plots it using the Google Maps API to create a fascinating animation.

The main message is that “the” quake is actually a “quake swarm” - with a few prominent releases that really stand out amongst a background of thousands of smaller...

The recent 6.3 magnitude earthquake in Christchurch, New Zealand, killed many more people and caused far more damage than the September 2010 7.1 magnitude earthquake which struck the same area; the reason: even though this earthquake was weaker than last year's event, it was much shallower; was situated directly under Christchurch; hit during the lunch hour when more people were exposed to damage; and shook sediments that were prone to "liquefaction," which can magnify the damage done by the ground shaking; scientists say the same description nicely fits many major cities and towns in Washington, Oregon, California, and British Columbia.

- See the full post at: www.homelandsecuritynewswire.com/nz-earthquake-illustrates-risks-us-west-coast