Use your mouse to click on the + and - (or drag the zip tie) to zoom in and out of the map.
Choose between Map view (showing place and street names), Satellite view (photographic rendering of the place) or Hybrid view (a combination of Map and Satellite).
The 'bubble' is placed as near as possible to the event described so it is generally worth zooming in to get a better sense of it's location. In a few cases where there is little detail available you may need to zoom out (click on '-' a few times) to see the map properly.
You can also click in the map and drag to see other places - the whole world can be viewed. If you live in a city you can probably even find your house!
Please let us know if you would like to make a comment about the map or if you have any problems using it.