Seismograph
It's very possible that Christchurch could have another earthquake. However, the possibility is low, as Christchurch had no major earthquake before the earthquake in 2010.
Measure the size of the earthquake.
An epicenter.
Magnitude.
Another name for tsunami is tidal wave. They are both huge waves caused by earthquakes. Also, both their sizes depend on where the earthquake's epicenter and focus is. So, they are exactly the same thing.
Another name for an earthquake is a temblor.
Another name for the focus of an earthquake is the hypocenter of an earthquake. This is the strongest point in the earthquake, like the eye of the storm.
Magnitude is another term for the strength of an earthquake.
Zhang Heng was the firts to invent the earthquake weathercock in 132 A.D.
Hypocenter.
Seismologist
Seismic waves.
Tsunami
GPX 5000 Gold Detector
I think it is called as ground roll ___________________________ An earth tremor
Another Earthquake was created on 2002-09-03.
is there any metal detector company by the name "Zealot"