has there ever been any tsunami at that place?
Yes, the 2011 Tōhoku earthquake and tsunami.
Midway Atoll
The 2011 Tōhoku earthquake and tsunami on March 11 caused many deaths among the bird population on Midway. 
the battle of midway signaled to the american military that UNANSWERABLE when did the battle take place? 4–7 June 1942 the battle was fought between which countries? U.S. and Japan what was the impact of this battle? Some authors have stated that heavy losses in carriers and veteran aircrews at Midway permanently weakened the Imperial Japanese Navy. what was the number of casualties in this battle from both end? 3,057 Japanese and 307 Americans was there air attack in this battle as well? Yes, nine B-17s took off from Midway at 12:30 for the first air attack. where is the above mentioned place located? It is roughly equidistant between North America and Asia, and lies almost halfway around the world longitudinally from Greenwich, UK.
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Midway Atoll [SEP] 2011 tsunami
The 2011 Tōhoku earthquake and tsunami on March 11 caused many deaths among the bird population on Midway. It was reported that a 1.5 m (5 ft) high wave completely submerged the atoll's reef inlets and Spit Island, killing more than 110,000 nesting seabirds at the National Wildlife Refuge. However, scientists on the island do not think it will have long-term negative impacts on the bird populations. A U.S. Geological Survey study found that the Midway Atoll, Laysan, and Pacific islands like them could become inundated and unfit to live on during the 21st century, due to increased storm waves and rising sea levels.