Skip to main content

Describing and Measuring Earthquakes

Ngā Whāinga Ako


Types of Earthquake Waves


P Waves


S Waves


L Waves



Whakakite: Slinky



Ngā Whāinga Ako



Measuring Earthquakes

{width=50%}


The energy ________ travels outwards as _____. The point in the Earth’s crust where this happens is called the _____, the point directly above the focus on the Earth’s surface is called the _________. Seismologists use ___________ to determine the magnitude and ________ of earthquakes.

Words: seismographs, focus, location, waves, epicentre, released


{width=80%}



{width=40%}

We can see that the epicenter is the closest place on the surface to the focus. This is why the s waves get there first.


Richter Scale


Mercalli Intensity Scale