0
The earthquake giving rise to the tsunami occurred at 6,000 feet below sea level 80 miles from northern Japan and 240 miles from Tokyo. Seismic waves (sound traveling through the solid crust of the earth below the ocean floor) move at around 14,000 KM/hr or about 8,300 miles/hr. This means that the shock wave hit northern Japan (80 miles away) about 36 seconds after the quake. Japan knew, at least at this point, that a tsunami and probably a tidal wave were on their way and would hit the island nation within minutes. With the modern warning systems that are in place using both radio and sound equipment, Japan knew the moment the quake occurred that a tsunami was on its way.
A tsunami travels at about 600 mph which means that it would have reached northern Japan (80 miles away) about 8 minutes after the quake and Tokyo (240 miles away) in about 24 minutes. The actual time was probably slightly greater because a tsunami slows as it gets into shallow water so it was probably attenuated considerably from its spot of origin to the various points of contact with land thus increasing the time of travel somewhat.
Wiki User
∙ 12y ago
Wiki User
∙ 7y agoThe major 9.0 magnitude earthquake occurred off the coast of Japan at 2:46:23 PM (local time) on March 11, 2011, or 05:46:23 UTC followed a few minutes later by a large tsunami. At 3:27pm, the first tsunami strikes the Fukushima nuclear plant.
A timeline of events on March 11 and following days can be found here. More details of the 2011 TÅhoku earthquake can be found here.
Wiki User
∙ 13y agoThe large tsunami that occured in Japan hit on March 11th, 2011.
Wiki User
∙ 13y agoThe earthquake occurred at 14:46 local time (05:46 UTC) on Friday 11 March 2011.
Wiki User
∙ 13y agoJust a few miles off the north-east coast, the earthquake shifted part of the sea bed upwards, dissplacing the ocean water above it and sending a tsunami towards Japan.
Wiki User
∙ 12y agoThe major 9.0 magnitude earthquake occurred off the coast of Japan at 2:46:23 PM (local time) on March 11, 2011, or 05:46:23 UTC followed a few minutes later by a large tsunami.
Wiki User
∙ 11y ago2:46pm local time
Wiki User
∙ 11y agoThe Tohoku Tsunami in Japan was in 2011
Wiki User
∙ 11y agoNovember 23, 2003
Add your answer:
Earn +20 pts
Where do most earthquakes and tsunami occurs?
Japan. Tsunami's really don`t happen in most countries(Hawaii may vary). Earthquakes are popular in Japan,so yes.
What type of fault was in the japan earthquake?
tsunami
Who was affected in the tsunami in japan?
The people who were affected in the Japanese tsunami was the prime minister because its his country and of course the people who was trapped in the tsunami.
What caused the tsunami in Italy Messina in 1908 to happen?
The Tsunami was created by an underwater earthquake/volcano.
How fast were the waves going in japan's tsunami?
Very very fast
What exact time did the japan tsunami happen?
3:00pm
Where in Japan did the tsunami happen?
off the cost of Honsho, Japan
What happen after the Japan earthquake?
A tsunami hit japan after the earthquake.
What year did the japan eartquake and tsunami happen?
The most recent Tsunami to hit Japan was in March of 2011.
When did Japan earthquake happen before or after the tsunami?
The Earthquake occurred before the tsunami as it is what caused the tsunami.
When did the most frequent tsunami happen?
Japan
How does a tsunami happen in japan?
earthquake in ocean
When did the Japan Earthquake and Tsunami happen?
Friday
When did the worlds largest tsunami happen?
in japan
Where did the Japanese tsunami happen?
It happened in Japan.
How did the japan tsunami happen?
and earhtquake scoring 8.9 on the rictor scale triggered the tsunami
What time did the tsunami occur in japan March 11 2011?
The tsunami hit Japan at approximately at 3:00pm local time of japan
