Ways to Get Tremorsense?

[Ogrork the Mighty]

Are there any ways for a monster to gain tremorsense/blindsight? A "Blind" template, for example?

 

[blargney the second]

Scorpion's Sense is a feat that gives a limited short-range form of tremorsense. Sandstorm p.53.
-blarg

 

[blargney the second]

Advanced Bestiary's Element-Infused (earth) template gives tremorsense. (p.111)
-blarg

 

[Egres]

The Cavernous (Planar) Terrain Mastery of the Horizon Walker gives you tremorsense with a 30-foot range.

 

[Ogrork the Mighty]

Or, alternatively, a way to upgrade blindsense to blindsight.