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Tsunami Sense
By Thom Henley
Confused and awed by the rapid retreat of
sea water
from the region’s shorelines, many people lost their lives when they
unknowingly walked toward impending doom. But, in nature, the animals knew
what to do.
It isn’t easy for humanity to make sense of a natural disaster on the
magnitude of the December 26th South Asian tsunami. The Western world in
particular has had its notion of a benign and caring Mother Earth shattered
by this event. Our cute and cuddly, Disney-like view of the world, à la Nemo,
Bambi, Lion King and The Jungle Book, has had a rude awakening. We have now
swung our mental pendulum to the other extreme. For days after the tragedy,
headlines world-wide screamed of “nature’s wrath”, “a dark and evil thing”,
“the ocean’s fury”, and the “merciless sea”.
But is Nature really capable of being kind or cruel; or is she just
indifferent? The 158,000 or more people in this part of the world that lost
their lives, and the millions more that were affected by the tsunami, were
not being punished by some vengeful god. They were simply in the path of
destruction caused by a periodic, if not totally predictable, natural event.
Children are taught from kindergarten to look in both directions for traffic
before crossing a street. Fire drills are regularly practised in schools
around the world, and there are well-rehearsed emergency procedures for
tornado warnings, hurricanes, bombing raids and other possible disasters. So
why do we in the modern age fail to inform our children of the most telltale
sign of an impending tsunami?
There are chilling photos and video footage of hundreds of tourists in
Thailand, on the morning of 26 December, following the rapidly receding
water right into the path of destruction. They were exploring tide pools and
stranded fish when they should have been moving inland and to high ground as
fast as they could. Eyewitnesses at Khao Lak, Thailand’s worst disaster
area, where thousands lost their lives, estimate that the sea was receding
for a full five to eight minutes before it came surging back in as killer
waves. That period should have been sufficient, had anyone been educated in
the only visible sign of an impending tsunami, to evacuate everyone from the
beach and warn those in restaurants and hotel rooms. Simply put: “When the
ocean pulls its plug, head for the hills.”
The animals knew what to do. Eight elephants at Khao Lak that were
transporting tourists as the sea started to recede suddenly ignored all the
prodding orders from their mahouts and charged up the jungle-clad hill
behind the beach resorts. Those elephants not engaged with tourists at the
time are said to have broken their chains in their panic to follow. The
entire herd stopped running just above the point on the hill that the
highest wave reached.
Water buffalo grazing along the beach of Baan Bang Koey, in Ranong Province,
are credited with saving an entire village. According to the village
headman, about 100 buffalo were grazing near the beach when the entire herd
suddenly lifted their heads in unison and, with ears standing upright,
looked out to sea. They then turned and stampeded up the hill, forcing
bewildered villagers, fearful of losing their livestock, to follow. Khun
Kornee said that within minutes of people making their way to the safety of
the hilltop, the tsunami slammed into their fishing community and destroyed
it.
Animals, both domesticated and wild, may have some sort of genetic
imprinting that allows them to sense imminent natural disasters. Or they may
just have far more acute vision, hearing, olfactory senses, and an ability
to flee faster than humans. At Yala National Park, in Sri Lanka, wildlife
officials were surprised to find no evidence of large-scale animal deaths
from the massive waves that slammed into this coastal refuge to leave the
bodies of tens of thousands of humans in its wake. Yala is Sri Lanka’s
largest wildlife reserve, home to more than 200 Asian elephants, crocodile,
wild boar, water buffalo, gray langur monkeys, and Asia’s highest
concentration of leopards.
An Associated Press photographer who flew over Yala National Park in an air
force helicopter shortly after the tsunami retreated was amazed to see
abundant wildlife and not a single animal corpse. The tsunami hit the park
with such force that it uprooted trees and left cars atop the roofs of park
facilities, but the animals, having apparently fled to the safety of higher
ground, were unharmed.
When Nature’s cycles occur with enough regularity, we’re usually clever
enough creatures ourselves to keep out of harm’s way. No one would build a
house, for instance, in a flood zone where a river bursts its banks annually
— at least no one would insure it, if they did. Earthquakes and tsunamis are
the least predictable of all natural disasters, but they still occur with
enough regularity for plants, animals and indigenous humans to have learned
to cope with them over time. Just look at the aftermath images of the
tsunami-devastated coasts in South Asia, if you want a lesson in how
superbly adapted coconut trees are to withstanding tidal waves. The tall
slender trunks of these palms offer little resistance to the force of the
waves. Only old and rotted trees, or very young ones with their fronds at
wave height, were toppled. In many coastal areas, coconut palms were the
only things left standing.
Tsunamis are not only the rarest of natural disasters; they are also the
most deceptive. Impossible to predict their impact with any degree of
certainty, they travel at the speed of a jet and hide the energy of a
hydrogen bomb in an almost imperceptible swell. On the geological time
clock, they are as common as the tide, although in human time they may only
occur once every generation or two.
In the past, humans held a great deal of tsunami sense in ancient wisdom
passed on through oral traditions. Indigenous peoples, for instance, still
know where to locate their homes to remain safe. The Penan, the last nomadic
forest dwellers in Borneo, never build their sulaps — their elevated
sleeping shelters — beneath a big tree for fear of limbs breaking or the
tree toppling during a tropical storm. Similarly, coastal villages were
traditionally built above broad tidal flats or inside mangrove estuaries.
Both locations not only offer superior food gathering potential, but provide
a good deal more protection from storms and tsunamis than the exposed coast.
Long tidal flats can completely steal the power of huge waves, as they must
break repeatedly on the flat before ever reaching shore. So too do mangrove
forests with their myriad channels and maze of roots act as efficient shock
absorbers to tame tsunamis long before they reach villages perched on stilts
behind the mangrove barrier. Ranong, the province with the most extensive
mangroves in South Thailand, sustained the least damage. By contrast, Patong
Beach, Ton Sai Bay on Phi Phi Island and Khao Lak, the hardest hit shores in
Thailand, offered no protection from tsunamis at all. These sites are the
quintessential picture postcard tourist beaches, but they drop off
dangerously fast into deep Andaman waters and they are sitting ducks for
tsunamis. Only a resort developer oblivious to the danger, or seeking to
profit in spite of it, would build at such a location. There’s now talk of
zoning Thailand’s Andaman coast so future developments do not leave tourists
vulnerable, but no Thais or foreigners that have lived here for long hold
much faith in these assurances.
It’s remarkable how the people in this region that are universally regarded
as the least educated and most archaic were the most successful survivors of
this tsunami. Asia’s last Paleolithic tribes in the Andaman and Nicobar
Islands were close to the epicentre of the earthquake, and were one of the
regions first and hardest hit by the colossal waves that followed. Still,
there seems to be little or no loss of life among their populations.
Survival International, a London-based group that tries to defend the
world’s indigenous peoples, reported that the Jarawa, the Onge, the
Sentinelese and the Great Andamanese may have suffered no loss of life at
all. Traditional teachings instructed the people to flee the coast to high
ground at the first sign of rapidly receding waters.
A report from the first over-flight of Sentinel Island, home to the most
isolated of these tribes, indicated that the inhabitants not only survived
the wave, but had no use for the world’s relief efforts. The Sentinelese
greeted the rescue helicopter that flew over their island — which is
impossible to reach by sea — with a barrage of poisoned arrows and rocks.
Right here in Thailand, indigenous people are credited with saving hundreds
of lives thanks to their traditional teachings. Staff on Koh Surin National
Park, near the Thai/Myanmar border, reported that not only did the two
villages of Moken (Sea Gypsies) located on Koh Surin save themselves from
the tsunami that hit the outer islands with full force, but they also saved
270 foreign and Thai tourists who were camping on the beach. “The elders
told us that, if the water recedes fast, it will reappear in the same
quantity in which it disappeared,” 65-year-old village chief Sarmao Kathalay
told the press. The Moken shared this time-honoured life-saving knowledge
with hundreds of clueless tourists, some of whom had attended some of the
world’s best institutions of higher learning.
Why does modern education so completely fail us at times like this? Part of
the answer lies in the fact that we’ve become increasingly urbanized
creatures, far removed from the forces and rhythmical cycles of Nature. We
also tend to turn not to the teachings of our past, but to modern technology
to save us.
A tsunami early warning system for South Asia, like that already in place
for the Pacific, is long overdue and well worth the estimated 40 million
euros it will cost to install. But the question that begs to be asked, and
no one seems to be asking, is why don’t we also build good tsunami sense
into our school curriculums worldwide?
Even people who don’t live near the coast at one time or another visit a
shoreline out of curiosity or at a holiday time, as do millions of foreign
tourists that descend on South Thailand annually. It would cost nothing to
implement a tsunami education programme from the youngest school age on, and
it would be the best and most lasting legacy to those who so tragically, and
needlessly, lost their lives.
Rip Currents
By Collin Piprell
Global education for children might also include information about what to
do if caught in a rip current (sometimes described, inaccurately, as a
“riptide”), the undertow that far too often proves deadly for unprepared
swimmers.
What typically happens, among those who drown in such currents, is that they
sense the inexorable power of the sea dragging them out from the beach, and
instinctively try to swim against it back to shore. But a strong rip can
defeat even a strong swimmer. What then happens is the person quickly
becomes exhausted, panics, and starts gulping water. This is a tragedy on a
smaller scale than that of a tsunami, but one which year after year drags
the unwary to a needless death.
When caught in a rip, do not swim against it. Relax. Recognize it for what
it is. Then swim parallel to the shore till you’re out of the current. At
that point, turn and make your way in to the beach. There’s no need for
panic, no need to exhaust yourself.
A further note: in the May-October summer season on Phuket’s west coast,
when the prevailing winds are from the southwest, rip currents can be
generated in some areas by heavy swells off the Indian Ocean. This may be
good news for surfers, but conditions can be dangerous, especially for
inexperienced swimmers. Please observe the warning flags along the beaches —
red for danger, green for safe conditions.
Teaching tsunami safety measures in schools is a good idea, but why not make
this part of a more general programme, providing children with a whole range
of simple life-saving lore?
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