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Tsunamis are actually fairly rare; there have only been two big ones this century so far, and a half-dozen smaller ones. We have had very bad luck so far this century; first Indonesia, and now Japan, both monster quakes and enormous tsunamis.
Tsunamis aren't directly caused by earthquakes; they are caused by underwater landslides or upthrusts - which are often caused by earthquakes. So there is almost always an earthquake associated with any tsunami. If there isn't any underwater earth movement, there won't be a tsunami.
What else can I help you with?
How often moon and Venus align?
Lunar occultations of Venus - when Venus disappears behind the Moon - happen a couple of times each year.
How many earthquakes happen each year in Haiti?
1000+
How many fires happened last year?
75,000 wildfires happen each year in the USA.
What is the amount of avalanches a year?
in one year in north America over 100,000 avalanches happen each year
How many volcano eruptions happen each year in Japan?
Chilli peppers
Does drama happen to every girl each year or so?
Yes, if not more often.
How often does census happen in new zealand?
on each year ending in a 6 or a 1 (every five years).
The number of sunrises that happen each year is measured in the?
The number of sunrises that happen each year is measured in days, with each day consisting of one sunrise.
How many hurricanes happen each year?
It depends on the year.
How often moon and Venus align?
Lunar occultations of Venus - when Venus disappears behind the Moon - happen a couple of times each year.
How often does hajj happen?
Once every year
How many earthquakes happen a year?
more than a thousand each year
How often does leap year happen?
Every Four Years
How many earthquakes happen each year in Haiti?
1000+
Does Fiba happen every year?
Yes the NBA playoffs are held each year.
How often the prizes are awarded?
each year.
When and how often does it happen with Chinese New Year?
It happens every time.
