Earthquakes-last thirty days

Are these a lot of earthquakes? Is there a way to go back 10-15 years to see earthquake history?

Dragonrider, maybe you can help?

Link

This is a search engine for the Advanced National Seismic System, that will search recorded seismic events as far back as 1898.

quake.geo.berkeley.edu...

If you let me know what you are wanting to do in terms of research, I will help how I can, although I dont have a lot of time to devote to a major research project.