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The undersea earthquake off the Indonesian island of Sumatra on Wednesday was the largest earthquake of its type ever recorded and has increased the risk of more powerful quakes in the region, a leading expert has said.

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Tsunami watch lifted after two big earthquakesupdated: Wed Apr 11 2012 15:05:00

A massive earthquake struck off the coast of the Indonesian island of Sumatra on Wednesday afternoon, triggering a tsunami watch for the Indian Ocean, which was later canceled.

Tsunami warning after Sumatra quakeupdated: Wed Jan 11 2012 07:19:00

CNN's Jennifer Delgado details the location of the Sumatra earthquake.

Quake rattles western Indonesia updated: Wed Jan 11 2012 07:19:00

A magnitude 7.3 earthquake struck early Wednesday off the west coast of the Indonesian island of Sumatra, the U.S. Geological Survey reported, but witnesses reported only minor shaking on land.

Beset by haze from hundreds of fires, Indonesia tries to trigger rainupdated: Tue Sep 13 2011 21:08:00

Indonesia began cloud-seeding operations over the island of Sumatra on Monday in an attempt to trigger rain to put out fires creating thick blankets of haze over parts of Sumatra and neighboring Singapore and Malaysia.

Entire towns engulfed by tsunamiupdated: Fri Mar 11 2011 23:23:00

A massive tsunami reached up to six miles inland, engulfing entire towns in Prefecture on Japan's east iyagi coast.

Japan quake: It could have been even worseupdated: Fri Mar 11 2011 23:23:00

The shaking was steadily intensifying as smiles dried up on the faces of my colleagues at the conference on -- what else? -- the 2004 Sumatra earthquake and tsunami.

Government considers relocations after Indonesian tsunamiupdated: Sat Oct 30 2010 00:25:00

The toll climbed to 413 dead and 298 missing four days after a magnitude 7.7 earthquake struck off Indonesia's coast, triggering a tsunami, officials said Friday.

Aid trickles in to Indonesian villages as volcano simmersupdated: Thu Oct 28 2010 11:18:00

Help trickled in Thursday to remote islands where whole villages were flattened by a earthquake and tsunami in western Indonesia.

At least 112 dead, more than 500 missing after Indonesia quakeupdated: Tue Oct 26 2010 20:20:00

Relief organizations struggled to reach those in need Tuesday, one day after a 7.7-magnitude earthquake struck off Sumatra, Indonesia, triggering a tsunami and killing at least 112 people, officials said. Another 502 were reported missing.

7.5-magnitude quake strikes off Indonesian coastupdated: Mon Oct 25 2010 17:24:00

An earthquake with a preliminary magnitude of 7.5 struck off the coast of Sumatra, Indonesia, on Monday, the U.S. Geological Survey reported.

Long-dormant Indonesian volcano erupts againupdated: Tue Sep 07 2010 09:52:00

A long-dormant volcano erupted again Tuesday in northern Sumatra, triggering strong tremors and sending bursts of hot ash into the air for the second time in a week.

Sumatra quake: Coincidence or a trend?updated: Wed Apr 07 2010 15:37:00

A 7.8 magnitude earthquake hits northern Sumatra, Indonesia. CNN's Chad Myers reports.

Geophysicist puts quake in persepctiveupdated: Tue Apr 06 2010 22:19:00

Geophysicist Susan Potter talks about the known statistics surrounding an earthquake that hit off the coast of Indonesia.

7.7-magnitude quake strikes Indonesiaupdated: Tue Apr 06 2010 22:19:00

A 7.7-magnitude earthquake struck off the coast of Indonesia early Wednesday, triggering two tsunamis and injuring several people, officials said.

Strong earthquake strikes off Sumatra coastupdated: Fri Mar 05 2010 14:29:00

A strong earthquake with magnitude 6.5 struck Friday night in the ocean southwest of Sumatra in Indonesia, the U.S. Geological Survey said.

Palm oil problemupdated: Fri Dec 11 2009 09:36:00

CNN's Arwa Damon goes to the Indonesian island of Sumatra to look at some of the problems of palm oil production.

Reporter's notebook: Palm oil production devastating Sumatran forestsupdated: Fri Dec 11 2009 09:36:00

As we drive through central Sumatra, what looks like a scene from some apocalyptic movie where an unknown force has obliterated all life on earth unfolds before us.

Rainforests turned into smoldering ruinsupdated: Sun Dec 06 2009 19:58:00

The land still smolders, tinted with a depressing gray. Twisted hulks of tree trunks take on abnormal shapes. A dark black canal cuts through the wasted landscape.

26 dead as Indonesian ferry sinksupdated: Thu Dec 03 2009 02:26:00

At least 26 people died Sunday when a ferry sank off the Indonesian island of Sumatra, and an unknown number of people were missing, officials said.

Saving Sumatra's orangutansupdated: Sun Nov 22 2009 22:45:00

CNN's Arwa Damon joins some orangutans at a jungle rehabilitation center.

Saving orangutans before extinction in Sumatraupdated: Sun Nov 22 2009 22:45:00

A loud crack echoes throughout the canopy as two young orangutans come tumbling down, grasping at branches along the way to break their fall. They recover and sheepishly scamper back up.

Dozens hurt in Indonesia earthquakeupdated: Mon Nov 09 2009 06:40:00

One person was killed and at least 88 injured when a strong earthquake hit the Sumbawa region in Indonesia early Monday, officials said.

Strong quake strikes near Indonesia's Papuaupdated: Fri Oct 23 2009 09:26:00

An earthquake struck near the north coast of Papua, Indonesia, Friday night, but no tsunami warning was issued, the head of nation's meteorological agency said.

Strong quake rattles Indonesian capitalupdated: Fri Oct 16 2009 11:29:00

A strong earthquake rattled the Indonesian island of Java on Friday, sending panicked people into the streets of the capital city, Jakarta.

Teen returns home to find family among quake deadupdated: Tue Oct 06 2009 17:11:00

Septiani Lenianingsih stands off to the side, away from the crowds that have gathered to watch the backhoe at work.

Village becomes mass graveupdated: Tue Oct 06 2009 17:11:00

An 18-year-old Indonesian girl arrives home to find her family and entire village buried by a quake-triggered landslide.

Search on for trapped Indonesiansupdated: Fri Sep 04 2009 06:32:00

Roads blocked by earthquake debris were cleared enough Friday to allow the addition of heavy machinery for the first time in the search for dozens of people trapped under rubble.

Powerful earthquake kills 57 in Indonesiaupdated: Thu Sep 03 2009 21:08:00

More than a day after a major earthquake jolted Indonesia's Java Island, killing at least 57 people, there is still no word from remote villages along the coast, a relief worker told CNN Thursday.

Indonesian coast hit by series of quakesupdated: Sun Aug 16 2009 10:48:00

A series of earthquakes, ranging in magnitude from 6.7 to 4.7, struck off the western coast of Indonesia's Sumatra Island on Sunday, the U.S. Geological Survey said. 2004 Indian Ocean Tsunami Biggest in 600 Yearsupdated: Wed Oct 29 2008 17:00:00

The tsunami that killed 230,000 people in 2004 was the biggest in the Indian Ocean in some 600 years, two new geological studies suggest

Strong quake jolts southern Sumatraupdated: Fri Aug 08 2008 04:06:00

A magnitude 6.0 earthquake rattled the coast of southern Sumatra in Indonesia on Friday, according to the U.S. Geological Survey. Study: Orangutan Populations Declining Sharplyupdated: Mon Jul 07 2008 20:30:00

Orangutan numbers have declined sharply on the only two islands where they still live in the wild and they could become the first great ape species to go extinct if urgent action isn't taken

Indonesia: 12 arrested over tourist attack plotupdated: Thu Jul 03 2008 09:54:00

Indonesian police have arrested 12 suspected militants who were planning to attack an area frequented by tourists, authorities said Thursday.

Moderate earthquake shakes Indonesiaupdated: Sat May 03 2008 00:53:00

A magnitude 5.7 earthquake shook the southern coastline of Indonesia's Sumatra island Saturday morning, according to the U.S. Geological Survey.

Indonesian quake raises tsunami fearsupdated: Sat Mar 29 2008 14:55:00

A magnitude-6.3 earthquake off the coast of Indonesia on Sunday could trigger a tsunami on coasts near its epicenter, the Pacific Tsunami Warning Center said.

Second quake in 10 hours hits Indonesiaupdated: Mon Feb 25 2008 14:15:00

A strong earthquake struck off the coast of Indonesia's Sumatra Island early Tuesday, the U.S. Geological Survey's Web site reported. After the Tsunami, Traffic Jams Again updated: Mon Dec 24 2007 11:00:00

Three years after the disaster, normality is creeping back in Banda Aceh, but the underlying economy hasn't yet healed

Strong earthquake shakes Sumatraupdated: Tue Oct 02 2007 10:19:00

A strong earthquake rattled western Indonesia Tuesday morning, striking off the coast of Sumatra, the U.S. Geological Survey reported, prompting authorities to temporarily issue a tsunami alert.

Experts: 'Run like hell'updated: Tue Sep 18 2007 22:29:00

Seismologists warn of a giant earthquake in the near future that will strike Indonesia. CNN's Hugh Riminton reports.

Indonesia's big one 'on its way'updated: Tue Sep 18 2007 22:29:00

An international team of earthquake specialists says Indonesia faces another potential "giant" quake in the near future.

Second day of quakesupdated: Sat Sep 15 2007 03:12:00

A second earthquake in Southeast Asia damages houses and sends residents fleeing by foot, motorcycle and truck.

Indonesia still shaking 3 days onupdated: Fri Sep 14 2007 14:23:00

A strong earthquake with a preliminary magnitude of 6.4 struck off the southwestern coast of Sumatra Friday in the same area shaken by a major 8.4-magnitude temblor that killed 13 people earlier in the week. 13 Die as Indonesian Quakes Continueupdated: Fri Sep 14 2007 09:00:00

Powerful earthquakes terrorized Indonesia for a third day Friday as thousands of people slept outside in the hills, and seismologists warned that the worst may be yet to come

Indonesia rocked by another quakeupdated: Thu Sep 13 2007 19:36:00

A strong earthquake with a preliminary magnitude of 6.2 struck late Thursday off the western coast of Sumatra, the same area shaken by a major 8.4-magnitude temblor that killed nine people Wednesday. Indonesia Under New Tsunami Alertupdated: Thu Sep 13 2007 13:50:00

Indonesia was shaken Thursday by the third earthquake in less than 24 hours, and survivors described the ocean retreating and racing back to shore as a 10-foot-high tsunami Are We Ready for Another Tsunami? updated: Thu Sep 13 2007 05:15:00

Powerful quakes in Indonesia recall the 2004 tragedy and prompt worries over whether we're prepared for the next one Second Powerful Quake Hits Indonesiaupdated: Thu Sep 13 2007 00:00:00

The second powerful earthquake in as many days shook western Indonesia Thursday, collapsing buildings in a coastal city and triggering tsunami alerts around the region.

Tsunami fears persistupdated: Wed Sep 12 2007 23:54:00

Craig Redmond, Indonesia director of Mercy Corps, updates the situation for residents after a powerful earthquake.

New quake rattles Indonesiaupdated: Wed Sep 12 2007 23:54:00

People on the Indonesian island of Sumatra were jolted Thursday by a powerful tremor that prompted the Indonesian government to issue another tsunami warning. 7 Dead in Indonesia Quake, Tsunamiupdated: Wed Sep 12 2007 08:00:00

A massive earthquake shook Indonesia on Wednesday, killing seven people, injuring 100 and triggering a small tsunami that hit one city on the island of Sumatra Powerful Quake Shakes Indonesiaupdated: Wed Aug 08 2007 15:00:00

A powerful earthquake under the Java Sea shook Indonesia's capital early Thursday, violently shaking tall buildings and sending panicked residents into the streets

Indonesia quake death toll risesupdated: Thu Mar 08 2007 01:08:00

The death toll from the strong earthquake and aftershock that struck Sumatra climbed to 73 on Thursday, according to disaster officials there.

Indonesian quake kills at least 70updated: Tue Mar 06 2007 01:58:00

A powerful earthquake struck western Indonesian Tuesday, killing at least 70 people and injuring hundreds more as buildings collapsed.

Powerful quake strikes Indonesiaupdated: Thu Jul 27 2006 08:36:00

A powerful earthquake rocked the Indonesian island of Sumatra on Thursday but there was no reports of any casualties and damage while meteorologists played down the risk of tsunami.

Bird flu scare: Human spread?updated: Wed May 24 2006 04:34:00

The World Health Organization says a cluster of bird flu cases in Indonesia may have been caused by human-to-human transmission.

Book excerpt: 'Dispatches from the Edge'updated: Mon May 22 2006 15:48:00

Small waves, one after the other, lap the shore. Two Sri Lankan villagers walk along the water's edge, searching for bodies washed up by the tide. They come every morning, leave without answers. Some days they find nothing. Today there's a torn shoe and a piece of broken fence.

Indonesia probes possible bird fluupdated: Sat May 13 2006 00:53:00

Indonesian and World Health Organization officials on Saturday were investigating eight suspected bird flu cases, four of them fatal.

Tsunami warnings lifted after massive quake off Tongaupdated: Wed May 03 2006 12:28:00

All tsunami warnings issued after a major quake in the southern Pacific Ocean have been canceled, according to the Pacific Tsunami Warning Center.

Tsunami's social cost yet to comeupdated: Wed Nov 30 2005 01:10:00

Despite its devastating toll of human misery, the December 2004 tsunami had relatively little impact on the broad picture of Asian regional economic growth in 2005.

100 killed in Indonesia jet crashupdated: Mon Sep 05 2005 01:01:00

More than 100 people have been killed after a plane crashed into a residential area of the Indonesian city of Medan, officials said.

Rebels, Indonesian government reach agreementupdated: Sat Jul 16 2005 17:50:00

Separatist rebels and the Indonesian government have reached a tentative peace agreement after five straight days of talks in Helsinki, Finland, according to a spokesman for GAM (Free Aceh Movement).

CNNMoney: Imagine:employee discounts on everythingupdated: Tue Jul 05 2005 12:53:00

NEW YORK (CNN/Money) - A free pound of Sumatra coffee a week, unlimited air travel anywhere in the United States and two cases of beer a month.

Big quake hits Indonesia's Sumatraupdated: Mon Jul 04 2005 23:43:00

A strong earthquake has struck off the northwest coast of the Indonesian island of Sumatra, shaking buildings and triggering some panic.

Scientists: Sumatra quake longest ever recordedupdated: Thu May 19 2005 10:04:00

Dramatic new data from the December 26, 2004, Sumatran-Andaman earthquake that generated deadly tsunamis show the event created the longest fault rupture and the longest duration of faulting ever observed, according to three reports by an international group of seismologists published Thursday in the journal "Science."

Earthquake strikes near Sumatraupdated: Sun Apr 10 2005 08:16:00

An earthquake has struck near Indonesia's northern island of Sumatra, triggering fears of new tsunamis, but none were reported.

Nine die in quake relief crashupdated: Sat Apr 02 2005 19:42:00

Nine Australian defense personnel have died in a helicopter crash during relief operations on Indonesia's earthquake-devastated island of Nias, the Australian Defense Department said.

Quake 'worse than expected'updated: Thu Mar 31 2005 03:29:00

Aid efforts to earthquake-ravaged Sumatra are being hampered by the level of destruction, amid reports the situation is worse than expected on the hardest-hit island of Nias.

Sumatra rattled by new aftershockupdated: Wed Mar 30 2005 20:16:00

The west coast of northern Sumatra in Indonesia was hit Wednesday by another strong jolt, 48 hours after an 8.7 magnitude earthquake stirred memories of December's earthquake and tsunamis that killed more than 174,000 people.

More deaths reported in Asia quakeupdated: Wed Mar 30 2005 12:36:00

Survivors of the great earthquake that struck off Sumatra have used their hands to dig through rubble while searching for loved ones on the hard-hit Indonesian island of Nias.

Second hit for surfers' paradiseupdated: Tue Mar 29 2005 04:10:00

The Indonesian island of Nias, where hundreds of people were killed in Monday's quake, is a popular destination with foreign and local surfers.

Survivors use hands in rescue digupdated: Tue Mar 29 2005 03:02:00

Survivors of the great earthquake that struck off Sumatra have used their hands to dig through rubble while searching for loved ones on the hard-hit Indonesian island of Nias.

U.S. in 'battle mode' following quakeupdated: Mon Mar 28 2005 16:46:00

The United States is moving into "battle mode" following Monday's magnitude 8.7 earthquake in southern Asia, alerting U.S. posts in the region and contacting aid workers, a State Department spokesman said.

Quake kills at least 300 on Indonesian islandupdated: Mon Mar 28 2005 12:01:00

A major earthquake struck off the west coast of Indonesia late Monday, killing hundreds, but fears of another tsunami like those that devastated the region in late December have faded.

Australia affirms Aceh aid dealupdated: Wed Feb 02 2005 22:33:00

Australia has reaffirmed its commitment to working in a partnership with Indonesia to rebuild areas hit by the December 26 tsunami.

Tsunamis leave environmental devastationupdated: Thu Jan 13 2005 14:21:00

Scientists from around the world have expressed grave concerns about the health of local ecosystems and their ability to sustain survivors of the tsunamis that struck parts of Asia and Africa last month.

Video a vivid reminder of tsunamiupdated: Sun Jan 09 2005 00:09:00

Two weeks after a tsunami ravaged coastal areas of the Indian Ocean, a new video has brought a different perspective to the horror of the disaster.

Leaders view tsunami devastationupdated: Fri Jan 07 2005 00:33:00

High-ranking international officials have toured regions hardest hit by the Indian Ocean tsunamis to see firsthand the devastation that has prompted one of the world's biggest relief efforts.

Agencies struggle to deliver foodupdated: Mon Jan 03 2005 07:17:00

Ships unloaded thousands of tons of food at docks on Sumatra's east coast, but relief planners struggled to finds ways to get the supplies to the Indonesian Island's west coast and the 800,000 people who survived the disaster.

Aid workers in desperate struggleupdated: Mon Jan 03 2005 00:01:00

Relief workers are struggling to reach areas cut off by last week's Indian Ocean tsunamis, as the death toll mounts and hope of finding thousands of missing people fades.

CNNMoney: Corporations give to tsunami reliefupdated: Thu Dec 30 2004 07:15:00

Corporations reached out to help the victims of Sunday's earthquake-triggered tsunamis in southern Asia.

Can scientists be prepared?updated: Wed Dec 29 2004 22:59:00

On Sunday morning, shortly before killer waves reached Sri Lanka and India, a report was transmitted to a monitoring station in Hong Kong.

Tsunami death toll tops 56,000updated: Tue Dec 28 2004 00:36:00

The number of dead in Indonesia has risen five-fold to 27,174, almost doubling the death toll from the massive underwater earthquake and the equally massive tsunami that followed it.

Tsunami and earthquake factsupdated: Mon Dec 27 2004 12:34:00

Here are some facts about tsunamis and earthquakes in general and this specific event, along with historical background:

Indonesian landslide kills 37updated: Sat Apr 24 2004 04:22:00

Indonesian rescue workers are searching for seven people, a day after a landslide covered their bus in Sumatra, a police official said.

Fortune: Is It Curtains For Gutta-percha?updated: Mon Dec 22 2003 00:01:00

Through a fog of nitrous oxide, I asked the endodontist about the toothpick-like thing he was about to put in my mouth. "That's a gutta-percha point," replied the doc. "We use them to fill up the r...

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