If an asteroid 5% the size of the moon hit the pacific ocean how tall would the Tsunami be?

Ok For this it's quite simple. you take the m of the moon which is 7.36 x 10 to the 22nd kilograms wich is 73,600,000,000,000,000,000,000.. now we need to take 5% of that which is 3,680,000,000,000,000,000,000 kilo grams or 8,113,011,241,600,000,000,000lbs... We need the speed of this asteroid to determine the force of impact. However if it was just to drop into the Ocean it would throw waves up as tall as Give or take 20ft I'd say 50' tall on the farthest shore