no, the only way to defeat tremorsense is to be flying or not touching the ground. You've been told this already.
check the language to make sure.
You vanish into the shadowy clefts of the natural rock and stone around you.
Encounter MartialMinor Action Personal
Requirement: You must be adjacent to a wall or other large stone feature, such as a column, a boulder, or a stalagmite.
Effect: You are hidden to any enemies that aren’t adjacent to you. You remain hidden until you move or attack.
Published in Martial Power 2, page(s) 47.
These doeskin coverings cushion your step.
Feet Slot 225,000 gp
Gain a +5 item bonus to Stealth checks. Also, you do not activate traps or hazards triggered by stepping into a particular square, nor can you be detected by tremorsense.