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Umh!, Whats this? |
Cover Story February
2001
>>>> Story Boxes
Ignored Warnings
Reports compiled by the Earthquake
Affected Relief and Rehabilitation Services, Ahmedabad indicate that several
warning signals that were reported by the media four months ago were ignored
The people of Gujarat, especially
Kutch and Saurashtra, have been victim to a relent
less cycle of natural disasters:
two cyclones, in 1998 and 1999, coupled with two successive years of drought.
The present earthquake was of unprecedented intensity and the tragedy has
raised legitimate questions about the quality and efficacy of government
response related to disaster management. A significant aspect of
disaster management relates to responses to warnings of imminent disasters.
Reports compiled by the Earthquake
Affected Relief and Rehabilitation Services (EARRS), Ahmedabad indicate
that several such signals that even appeared in the media four months ago,
were ignored
Reports from newspapers of Sept.
2000:
Major quake may follow Bhavnagar
tremor: Expert
(PTI) 18 Sept. 2000, The Times of
India
MUMBAI: The large number of tremors
being felt in Bhavnagar district of Gujarat “may be indications of a possible
major earthquake”, according to an eminent geologist. The 11 tremors in
five hours on September 12 could be foreshocks which normally precede a
major earthquake just as it happened in Killari in Maharashtra on September
30, 1993, said Dr V Subramanyan while delivering a lecture on “Seismic
scenario around Mumbai” at the Indian Institute of Geo–magnetism here during
the weekend.
Bhavnagar is geologically identical
to Mumbai and both fall under earthquake zone III where quakes of magnitude
up to 6.5 were possible, he said.
The district lies along the Gulf
of Khambat which is near Narmada faults, well near Satranj river basin.
Subramanyan, currently project advisor of department of earth sciences
in IIT Mumbai, said normally the faults, lying quiet for some time, get
reactivated suddenly and act as the route for the release of stored pressures.
Appreciating the Gujarat government’s
effort at assessing the strength of the existing buildings and planning
to adopt appropriate building technology, he said such studies should be
done systematically for posterity since “we have to live with the earthquakes”.
Scientific studies have helped to demarcate possible seismic zones through
integrated geological and geophysical investigations, he said, adding,
“the only thing which can be attempted in seismic zones is to go in for
appropriate construction using the right designs for different types of
buildings, warehouses, power reactors and dams”. Talking about prediction
and prevention of earthquakes, Subramanyan said the scientific community
was still not in a position to predict earthquakes.
“It is because there are many factors
we do not know, like the depths where the pressures build up, for how long
they accumulate before getting relieved through earthquakes and where the
pressure is built”.
Earthquakes are brought about by
the sudden release of pressures that have been accumulating for a long
time inside the earth just like a pressure cooker, he said. Rocks are strong
to withstand such pressures for quite some time, but when the accumulating
stress exceeds ultimate bearing capacity, then they break by developing
“fault” planes — which are actually cracks through which the accumulated
pressure is released suddenly generating an earthquake which normally does
not last longer than 15 seconds.
Killer quake feared in Gujarat district
Thursday 14 September 2000, The
Times of India
GANDHINAGAR: Three more mild tremors
kept people awake all night in Bhavnagar district as the government prepared
on Wednesday to meet any emergency situation in the coastal region sitting
on a seismically active faultline. More than 30 mild tremors have been
felt in Saurashtra in recent days, raising fears of a major geological
activity that could cause death and destruction.
Experts warned that a ‘’killer earthquake’’
could strike the region anytime as the Bhavnagar–Kodinar faultline seems
to have ‘re–activated’. The latest tremors were experienced at around 11.15
pm on Tuesday, and 2.24 am and 6 am on Wednesday. The region was shaken
nearly a dozen times on Tuesday.
Three hundred families had been
shifted to safer places. Chief minister Keshubhai Patel, in Bhavnagar campaigning
for the September 17 civic elections, urged the Centre to rush a team of
meteorologists and seismologists to study the phenomenon. Patel also held
high–level review meetings of officials here on Wednesday. The state government
has sanctioned Rs 50 lakh as contingency relief fund and despatched medical
and engineering teams to Bhavnagar. (UNI)
Quiet Bhavnagar tremor raises quite
a storm: Geologists to study connection with earth-quakes in Turkey, Taiwan
Discussion forum on Local Economy
& Politics, 23rd September, 2000
A team of geologists from Dehradun,
Pune and Vadodara will look into whether the tremors felt in Bhavnagar
on Tuesday were anyway related to the devastating earthquakes in Turkey
and Taiwan.
On the other hand, principal advisor
to the chief minister, PK Lehari, said on Wednesday in Gandhinagar that
there was no link between the earthquake that occurred in Taiwan and tremors
felt in the Bhavnagar district of the state. Mr Lehari said that Bharuch
and not Bhavnagar fall in the earthquake zone.
Bhavnagar experienced slight tremors
on Tuesday afternoon at 12.55 pm in an area of 80 sq km reaching up to
Bhal Bhatta area in Alang. The tremors in Bhavnagar on Tuesday followed
a severe earthquake in Taiwan where more than a thousand people died. Coincidentally,
the earthquake in Turkey about one–and–a–half months back was also followed
by tremors in the Bhavnagar city.
Experts from Dehradun, Pune and
Vadodra will also locate the epicentre of eruption in case the city faces
a serious threat of earthquake. According to experts in the seismographic
research department of the state, an earthquake is generally followed by
slight tremors. No official records were taken one–and–a–half months back
when the city experienced similar tremors following the Turkey earthquake.
Gujarat Engineering Research Institute
at Vadodara has also been contacted in this connection. According to the
Maritime Board of Alang, the intensity of the tremors was greater at the
ocean surface and near seashore areas. Similarly, in Bhavnagar, intensity
of the tremors was less in rural areas, as a result of which residents
have started shifting to villages.
However, the Bhavnagar district
collector, Mr Rajkumar, who was in Gandhinagar on Tuesday, said normal
life was unaffected and also no loss of property was reported. |