* TriOptima to create depository for interest rate swaps

* Markit and DTCC to create depository for equity swaps

* Included in banks' commitments in letters to New York Fed

By Jane Baird

LONDON, Nov 5 (Reuters) - Derivatives market participants are creating entities to provide regulators with information necessary to spot system-threatening risk exposures in the $600 trillion market.

Amid intense debate on legislation and regulation of the derivatives in the wake of the financial crisis, the industry has been taking steps to make over-the-counter (OTC) markets more transparent and easier to regulate.

A committee of bankers, working through the International Swaps and Derivatives Association (ISDA), has appointed TriOptima to collect information on all trades in the $418 trillion interest rate derivatives market by the end of 2009.

For the roughly $9 trillion equity derivatives market, another committee has picked the Depository Trust & Clearing Corp (DTCC) and Markit to create a complete repository by end-July.