U.S. Rep. Colleen Hanabusa raised $500,000 in the past quarter for her Democratic primary challenge against U.S. Sen. Brian Schatz, her campaign said today.

Her campaign said the donations reflect six weeks of fundraising since she announced she was would run against Schatz in May. Seventy-five percent of the donations came from Hawaii, her campaign said.

Schatz raised $911,000 during the last quarter, according to his campaign, and more than $2 million overall.

“This is a good number for us,” Cameron Nekota, Hanabusa’s campaign chairman, said in a statement. “Colleen announced her candidacy almost halfway through the quarter and we want to say ‘Mahalo’ to our donors who mobilized so quickly. We are thankful and humbled by the tremendous support we received in a very short period of time.”

Hanabusa also had $248,600 in her House account at the end of the first quarter that she can use for her Senate campaign.

The election next year is for the remainder of the late U.S. Sen. Daniel Inouye’s term, which runs through 2016.