In early 1914 when displaced by G-class destroyers she joined the 9th Destroyer Flotilla based at Chatham tendered to HMS "St George". The 9th Flotilla was a patrol flotilla tasked with anti-submarine and counter-mining patrols in the Firth of Forth area. On 16 December 1914 under division leader HMS "Doon" along with HMS "Waveney", HMS "Test" and HMS "Moy" under the command of Lieutenant C. C. Naylor were sent to patrol off Hartlepool. During the German Battlecruiser raid on Hartlepool, she was damaged by German shellfire. She was struck by fragments from a shell, bursting short and superficial suffered splinter damage and no casualties. In August 1915 with the amalgamation of the 9th and 7th Flotillas she was deployed to the 7th Destroyer Flotilla based at the River Humber. She remained employed on the Humber Patrol participating in counter-mining operations and anti-submarine patrols for the remainder of the war.