Once again we are reminded that the Wellington region is carved up by a large number of fault lines, with an earthquake measuring 4.2 triggered just 10km West of Porirua at 10:16 this morning.
It was quite noticeable at the Emergency Management Office - the initial rumble of the primary waves felt and sounded like someone was parking a Mack truck under the floor, and then the secondary waves hit with a definite side to side shaking.
Here's the Stuff article - http://www.stuff.co.nz/dominion-post/news/6106968/4-2-quake-hits-Porirua
Here's the data from Geonet:
The following earthquake has been recorded by GNS:
Reference number: 3623397/G
Universal Time: 2011/12/07 21:16:42
Local time (NZDT): 10:16 AM on Thursday 08 December 2011
Latitude, Longitude: 41.15S, 174.75E
NZ Map Grid (E, N): 2657000, 6005000
NZ Trans Merc (E, N): 1747000, 5443000
Location: 10 km west of Porirua
Focal depth: 30
Web page: http://www.geonet.org.nz/earthquake/quakes/3623397g.html
Felt widely around the Wellington region
Click on the link, check out some of the maps and things, and fill in the Felt Earthquake Report.