Aplace located at -18.156290, 147.485962 is located in the and hemispheres.

A place located at -18.156290, 147.485962 is located in the South and East hemispheres.

Explanation:

Let's begin by explaining that these are geographical coordinates called Latitude and Longitude.

-Latitude is the angular distance between the equatorial line, and a specific point on the Earth. It is measured in degrees and is represented according to the hemisphere in which the point is located, which can be north or south latitude.  

So, latitude refers to the equatorial line that divides the Earth in two hemispheres (North and South), a positive latitude refers to the northern hemisphere and a negative latitude refers to the southern hemisphere.

-Longitude represents the specific east–west position of a point on the Earth's surface, being longitude the prime meridian or Greenwich meridian.

So, a positive longitude means the point is to the East and a negative longitude means the point is to the West.

Therefore, if we have latitude and longitude  we know the point is located in the South and East hemispheres.