Tropical Storm Irene has generated an estimated 28,500 claims, totaling over $90 million in Massachusetts, according to latest estimates by the state’s insurance division. The totals include 4,800 claims of $15.6 million in western and central Massachusetts. In western and central Massachusetts, Irene generated an estimated 350 claims worth over $960,000 in Berkshire County, more than 150 claims worth nearly $750,000 in Franklin County, more than 600 claims worth over $2.5 million in Hampden County, nearly 200 claims worth almost $800,000 in Hampshire County, and over 3,500 claims worth more than $10.6 million in Worcester County.