Aug 10 (Reuters) - Coinbase Global Inc reported a more than 1,500% jump in quarterly trading volumes on Tuesday, as the U.S. cryptocurrency exchange consolidated its huge expansion at the start of this year and a surge in bitcoin trades continued well into the quarter. Coinbase’s trading volumes stood at $462 billion for the quarter ended June 30, compared to $28 billion in the year-ago period. The crypto exchange posted a net income attributable to common shareholders of $1.59 billion, or $6.42 per share, for the quarter ended June 30. Reporting by Sohini Podder in Bengaluru; Editing by Shailesh Kuber Our Standards: The Thomson Reuters Trust Principles.