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Fourth
nuclear plant near active volcanoes: activists
DANGER ZONE: New research
points to more than 70 underwater volcanoes within an 80km radius of the site of
the Fourth Nuclear Power Plant, the activists said
By Vincent Y.
Chao
STAFF REPORTER
Sunday, Jan 17, 2010, Page 2
“No country in the world builds nuclear power plants at such a close distance
to volcanoes.”— Lee Chao-shing, dean of science at National Taiwan Ocean
University
Environmental activists yesterday urged the state-run Taiwan Power Co (台電) to
stop construction of the Fourth Nuclear Power Plant, citing safety concerns amid
findings that the site was in the vicinity of a number of active underwater
volcanoes.
In a press conference held with Democratic Progressive Party Legislator Tien
Chiu-chin (田秋堇), the activists — led by the non-profit Green Citizens' Action
Alliance — presented a report showing that the site of the new nuclear power
plant in Taipei County's Gongliao Township (貢寮) was within 20km of underwater
volcanoes.
The author of the report, Lee Chao-shing (李昭興), the dean of science at National
Taiwan Ocean University, said the data were not available when the original
Environmental Impact Assessment took place three decades ago.
Lee called for the regulatory agencies to suspend construction and conduct an
investigation into the matter.
Based on Lee's research, Gongliao Township is surrounded by more than 70
underwater volcanoes within an 80km radius. Among this group of volcanoes, 11
were found to be active, with the nearest located within 20km.
“Given the high concentration of active volcanoes, the vicinity is especially
susceptible to tremors and quakes,” Lee said. “While there might not be an
immediate danger, the area is definitely in need of monitoring and further
investigation.
“No country in the world builds nuclear power plants at such a close distance to
volcanoes,” Lee said, adding that the six non-active fault lines in the area
could exacerbate the problem.
Japanese earthquake expert Takemoto Kazuyuki said the findings show a serious
risk that can no longer be ignored.
“The location is just not suitable for nuclear technology,” Kazuyuki told the
press conference.
He said Japan had already realized the scope of the problem during a 2007
earthquake that caused damage to the Kashiwazaki-Kariwa nuclear plant in central
Japan. The plant is one of the largest nuclear generating stations in the world
by net electrical power rating.
Last year, the Japanese government announced that it would prioritize the
reinforcement of its nuclear power plants and increase earthquake resistance
measures to above peak ground accelerations of 1.0g (gravity = 9.80 meters per
second per second) for most plants. Its nuclear power plants, including
Kashiwazaki-Kariwa, were designed to withstand accelerations of up to 0.6g, when
the 6.8 magnitude earthquake struck.
Taiwan's Atomic Energy Council (AEC) data showed that the nation's three
operating nuclear power plants are designed to withstand accelerations of up to
0.3g and 0.4g.
The fourth plant is designed to withstand 0.4g, a figure that Kazuyuki said was
wholly inadequate.
“Taiwan and Japan are both earthquake prone countries ... Taiwan needs to do a
better job reinforcing its power plants,” Kazuyuki said.
Construction of the power plant has been plagued by delays and accusations of
ballooning costs.
Premier Wu Den-yih (吳敦義) said last October that the first nuclear reactor of the
plant wasn't expected to become operational until the end of 2011, later than
its original plan of July this year.
In response to the activists' concerns, Chen Yi-bin (陳宜彬), the director of the
AEC's Department of Nuclear Regulation, said in a telephone interview with the
Taipei Times that it was “inappropriate” to compare existing power plants with
those in Japan because of their unique geological positions.
“Every power plant has unique geological requirements that require different
degrees of reinforcement,” Chen said. “We are constantly reviewing these
requirements to keep up with new research.”
He said that based on research conducted by the agency, the Fourth Nuclear Power
Plant had the best location in terms of risk from natural disasters among the
four plants.
He said its distance from live fault lines, coupled with a stable base, would
make it more secure than the other three.
As for concerns about live underwater volcanoes, Chen said that based on a
previous report taken into consideration by the agency, the possibility of an
eruption “remains low.”
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