Do you mean the first wave of the recent Japanese tsunami? If so, the first wave struck late on Thursday night.
It could be billions of years old. There would have to be moving plates, and also oceans.
The most recent Indian Ocean Tsunami killed approximately 200 000 people.
The first recorded large tsunami in the Philippines occurred on September 20, 1658, in the province of Ilocos Norte. It was caused by an undersea earthquake along the Manila Trench. The tsunami devastated coastal areas and resulted in significant loss of life.
The largest Tsunami ever recorded (Lituya Bay, Alaska, 1958) killed only 2 people as it occurred in a very remote area.
The highest recorded tsunami in history occurred in Lituya Bay, Alaska in 1958, reaching a height of approximately 1,720 feet (524 meters). This mega-tsunami was triggered by a massive landslide into the bay.
There were tsunamis long before recorded history began, so it's impossible to answer the question.
Historical records suggest that tsunamis have been observed and documented throughout human history. The oldest recorded tsunami that has been identified is the Storegga Slide tsunami, which occurred around 8,000 years ago in Norway.
The largest recorded tsunami was a wave 1720 feet tall in Lituya Bay, Alaska.
It could be billions of years old. There would have to be moving plates, and also oceans.
nopee
The first recorded tsunami that hit Japan occurred off the shore of the Kii Peninsula, Nankaido, Shikoku, Kii, and Awaji region. It has been estimated to be a magnitude 8.4- Nancy-
The most recent Indian Ocean Tsunami killed approximately 200 000 people.
The first recorded large tsunami in the Philippines occurred on September 20, 1658, in the province of Ilocos Norte. It was caused by an undersea earthquake along the Manila Trench. The tsunami devastated coastal areas and resulted in significant loss of life.
The largest Tsunami ever recorded (Lituya Bay, Alaska, 1958) killed only 2 people as it occurred in a very remote area.
The highest recorded tsunami in history occurred in Lituya Bay, Alaska in 1958, reaching a height of approximately 1,720 feet (524 meters). This mega-tsunami was triggered by a massive landslide into the bay.
It may possibly occur, but the chances are very slim. These are called Megatsunamis. The tallest tsunami wave ever recorded was the Lituya Bay tsunami in Alaska, which measured 1,720 ft. tall.
The worst ever tsunami recorded was 9.5! that was the worst EARTHQUAKE ever recorded you retard! valdivia chile, 22 may 1960