Mary Anna (30 June 2012)
"Stunning Map Reveals World's Earthquakes Since 1898"

 
http://www.ouramazingplanet.com/3114-world-earthquakes-map.html

If you've ever wondered where ‹ and why ‹ earthquakes happen the most, look no further than a new map, which plots more than a century's worth of nearly every recorded earthquake strong enough to at least rattle the bookshelves.

The map shows earthquakes of magnitude 4.0 or greater since 1898; each is marked in a lightning-bug hue that glows brighter
with increasing magnitude.

The overall effect is both beautiful and arresting, revealing the silhouettes of Earth's tectonic boundaries in stark, luminous swarms of color.