Natural Hazards frequently asked questions

Some commonly-asked questions about tornadoes in New Zealand.
The probability that events such as floods, wind storms or tornadoes will occur is often expressed as a return period.
Rob Bell's analysis of the tsunami signature.
A powerful magnitude 8.0 earthquake ruptured the seafloor south of Samoa on 30 September 2009, unleashing a destructive tsunami on Samoa, American Samoa, and northern Tonga (Niuatoputapu).