Magnitude 3.2, Tuesday, October 12 2010 at 9:42 am (NZDT), 20 km north of Opunake.
Some scientists warn that a large eruption is "overdue". Research from Massey University indicates that significant seismic activity is likely again in the next 50 years. Prevailing winds would probably blow ash east, covering much of the North Island, and disrupting air routes, power transmission lines and local water supplies.
Taranaki's most recent eruption took place in 1854 AD.
In the last few weeks there have also been several earthquakes near Taupo, and White Island.