CentOS 7.x Installing EPEL
From Notes_Wiki
<yambe:breadcrumb>CentOS 7.x specific issues</yambe:breadcrumb>
Installing EPEL on CentOS 7.0
Use following commands to install EPEL on CentOS 7.0
yum -y install epel-release
Also refer to http://linuxg.net/how-to-add-the-remi-epel-and-rpmfusion-repositories-on-centos-7/