2005 Mazda3 2.0L blew out the oil pressure gauge
 

Hey there, I have been trying to find some details on this issue... I was driving to work yesterday and my oil light came on, I got to work and checked the oil and it was full. After work heading home it came on again (about 15 mins into drive). Then this morning when I started the car at idle it made some noises and started blowing oil out on the driveway.
Checked and it blew out the oil pressure gauge (well what I think is that anyway, by the oil filter).

Is this just a faulty part? And a simple fix? or should I be concerned about why it blew in the first place?

Any help, ideas would be appreciated.

Thanks
Alex.