How a tsunami is formed

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ASHLEY:
MORE THAN 800 PEOPLE DIED IN
INDONESIA LAST WEEK AFTER A
CATASTROPHIC EARTHQUAKE AND
TSUNAMI, AND THAT NUMBER IS
EXPECTED
TO GO HIGHER.
22NEWS STORM TEAM METEOROLOGIS
KELLY REARDON EXPLAINS HOW THESE
VERY
DESTRUICTIVE WALLS OF WATER
FORM.
KELLY REARDON:
TSUNAMIS ARE A DEADLY NATURAL
PHENOMENON.
THEY CAN BE STARTED BY FALLING
ROCK OR AN EARTHQUAKE, BUT
THANKFULLY, OUR RISK
OF BEING HIT HERE IN
MASSACHUSETTS IS EXTREMELY LOW.
A TSUNAMI DEVASTATED INDONESIA
ON FRIDAY KILLING AT LEAST 800
PEOPLE. BUT HOW EXACTLY DOES
THIS PHENOMENON FORM?
"
THAT CAN BE TYPICALLY ACHIEVED
BY AN EARTHQUAKE, WHICH CAN MOVE
LARGE AREAS OF LAND
EITHER UP OR DOWN. AND SUDDENLY
THE WATER HAS TO RESPOND TO IT,
AND THAT WILL START A
TSUNAMI WAVE."
TSUNAMI WAVES CAN BE MORE THAN
100 FEET TALL, AND CAN TRAVEL AT
SPEEDS OF
500 MILES PER HOUR, WHICH IS
COMPARABLE TO THE SPEED OF AN
AIRPLANE. THEY CAN
BE TRIGGERED BY EARTHQUAKES,
UNDERWATER LANDSLIDES, OR EVEN
HUGE FALLING ROCKS. THE
INDONESIAN TSUNAMI WAS 16 FEET
HIGH AND WIPED OUT
MOST OF THE CITY OF PALU.
THE AREAS WITH THE HIGHEST RISK
OF BEING HIT
BY A TSUNAMI ARE IN THE PACIFIC
OCEAN, LIKE CALIFORNIA OR
ALASKA, BUT HERE IN
MASSACHUSETTS,
OUR RISK IS NEAR ZERO.
MORE THAN 90 INDONESIAN RED
CROSS VOLUNTEERS WERE ON THE
GROUND
IMMEDIATELY, AND RELIEF EFFORTS
ARE UNDERWAY. THE RED CROSS'
FIRST PRIORITIES ARE SEARCH AND
RECUE,
MEDICAL SUPPORT AND DISTRIBUTING
EMERGENCY RELIEF SUPPLIES.
KELLY REARDON:
ALTHOUGH OUR CHANCES OF BEING
HIT BY A TSUNAMI HERE ARE NEAR
ZERO, IT'S
ALWAYS GOOD TO KNOW THAT IN THE
EVENT OF A TSUNAMI, YOUR FIRST
PLAN OF
ACTION SHOULD BE TO GET TO
HIGHER GROUND. REPORTING LIVE
FROM WESTFIELD, I'M 22NEWS STORM

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How a tsunami is formed

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