• TECHNOLOGY
        • MARCH 14, 2011, 9:31 A.M. ET

Rush to Fix Quake-Damaged Undersea Cables

By OWEN FLETCHER And JURO OSAWA

http://online.wsj.com/article/SB10001424052748704893604576199952421569210.html?mod=WSJ_hp_MIDDLTopStories

BEIJING—Asia's major telecom operators scrambled Monday to eliminate the impact 
on their operations from damage to several submarine cables following the 
massive earthquake and tsunami in Japan.

Many operators were reporting some disruptions in Internet access, though the 
partial restoration of service was accomplished by rerouting traffic over 
undamaged cables and via satellites.


About half of the existing cables running across the Pacific are damaged and "a 
lot of people are feeling a little bit of slowing down of Internet traffic 
going to the United States," said Bill Barney, chief executive of Hong 
Kong-based cable-network operator Pacnet. He declined to name the damaged 
cables operated by other companies, but said Pacnet's cable system connecting 
Japan to the U.S. isn't damaged so far.

Most international Internet-data and voice phone calls are transmitted as 
pulses of light via the hundreds of undersea fiber-optic cables. The cables, 
which can cost hundreds of millions of dollars, are typically owned by 
consortia of telecom companies, who share costs and capacity. While the 
clusters of glass fibers are enclosed in protective material, they remain 
vulnerable to undersea earthquakes, fishing trawlers and ship anchors. There 
are also many choke points around the globe, where a number of cables converge.

While the extent of the damage to undersea cables is unclear and financial 
losses unknown, operators said they are undergoing an inspection and looking to 
expedite restoration.

Pacnet aims to repair two damaged segments of its East Asia Crossing network 
connecting Japan to other parts of Asia, like Taiwan and Hong Kong, within five 
to seven days, Mr. Barney said. He played down concerns about any financial 
impact on Pacnet or regional telecom operators from the damaged cables.

"It's in our business plan that our cables will break, typically you get cuts 
in cables anywhere from five to 10 times a year," even though the damage on 
land after Japan's earthquake has drawn extra attention, Mr. Barney said.

Japanese telecom operator KDDI Corp. said on Monday that one of its undersea 
cables between Japan and the U.S. has been damaged by the earthquake and is 
unable to transmit any signals, but a spokesman said the company didn't know if 
the cable was cut or having connection problems..

The damaged part is far offshore and it may take a while for KDDI to identify 
and address the problem, but services are recovering after the quake, as the 
company can bypass the damaged part and use other cables instead, the spokesman 
said.

Residents are dealing with a lack of rations in Northern Japan, as 
transportation equipment is hampered in the aftermath of Friday's quake. WSJ's 
Eric Bellman reports from Sendai.

Pacific Crossing, a unit of Japan's NTT Communications Corp. that operates a 
cable network between Japan and the U.S., said on Monday that the Pacific 
Crossing PC-1 W and PC-1 N parts of its network remained out of service due to 
the earthquake.

NTT Communications said that some of its services for enterprises were 
partially unavailable in Japan's Tohoku region, but that for submarine cables 
between Japan, other parts of Asia and the U.S., the company is using backup 
cable routes to maintain uninterrupted service.

PCCW Ltd., the dominant broadband provider in Hong Kong, said Internet traffic 
to some international destinations, especially the U.S., is experiencing 
reduced speeds owing to several damaged cables that land in Japan. PCCW, which 
also provides broadband Internet in Hong Kong, but it didn't release details. 
The affected cables will be repaired in "the coming weeks," the company said in 
a statement.

An official from Taiwan operator Chunghwa Telecom Co. said Friday the 
earthquake caused damage near Kita on the eastern coast of Japan to an undersea 
cable that belongs to the Asia Pacific Cable Network 2, which is owned by a 
consortium of 14 telecom operators led by AT&T Inc. AT&T didn't immediately 
reply to a request for comment.

China Telecom Corp., China's largest fixed-line operator by subscribers, was 
making emergency repairs on Friday to undersea cables damaged by the 
earthquake, the state-run Xinhua news agency reported. The company said 
submarine fiber-optic cables connecting Japan and North America and a Pacific 
Crossing 1 cable near the city of Kitaibaraki, in Japan's northern Ibaraki 
Prefecture, were malfunctioning. A China Telecom spokeswoman wasn't immediately 
available to comment on Monday on the status of the repairs.

China Mobile Ltd., the world's largest mobile carrier by accounts, said most of 
the company's services are operating normally despite a surge in calls to 
Japan, Xinhua reported.

Telecom operator China Unicom Ltd. said most of its circuits had been repaired 
but cited connection problems with the network of Japan's NTT Communications, 
Xinhua reported.

Several companies said they avoided significant service disruptions by 
rerouting data traffic, including South Korean telecom operator KT Corp., which 
said a cable that is part of the Japan-U.S. Cable Network was cut; SK Telink 
Corp., an affiliate of South Korean operator SK Telecom Co.; and Globe Telecom 
Inc. of the Philippines.

Also in the Philippines, Bayan Telecommunications Inc. said the quake disrupted 
some of its digital-subscriber-line services. "Forty percent of our total 
capacity was affected…but we expect all to normalize within the day," said 
Bayan vice president for corporate brand and communications John Rojo.

Some operators were unaffected. A spokeswoman for Australian operator Telstra 
Corp. said none of the company's undersea cable infrastructure was damaged.

More than 5,000 people have been confirmed dead or missing because of the quake 
and ensuing tsunami, according to Kyodo News. Japanese Prime Minister Naoto Kan 
has called the earthquake and its aftermath the biggest crisis in Japan's 
post-war history.

Write to Juro Osawa at [email protected]
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