Pacific Ocean

Officials have said the waves produced by the magnitude 7.1 quake do not pose a threat to Hawaii.

The quakes came two hours apart and were likely caused by tectonic shifts in the Mariana Trench.

The USS Helena light cruiser was sunk by Japanese torpedoes in 1943.

America has beefed up its presence in Asia in a warning to China and North Korea.

The Russian military has carried out a series of drills near its border with North Korea as tensions have escalated, and Moscow has vowed to firm up defenses in case of war.

Moscow repeatedly called for the U.S. to step back from its military reinforcement of Japan and South Korea in response to Pyongyang's nuclear tests.

Russia's Foxhound aircraft is a Cold War-era warplane earmarked for high-speed, high-altitude pursuits of U.S. and other incoming aircraft.

Moscow was flexing its muscles in the border regions in recent months.

A recent study further unravels the mystery of Yellowstone's volcanic system.

One of the most time-consuming areas to guard in 2017 has been Primorye—the only Russian region to border North Korea.

The flyover is one of several recent drills by Russia in the Asia Pacific, carried out from its North Korea-bordering Primorye region.

Scientists have finally figured out why a patch of water in the Pacific Ocean has remained stagnant for the past 1,000 years.

Visitors to Nan Madol have reported multiple ghost sightings.

Russia and Japan have argued about a stretch of islands for over 60 years, but this is not stopping Moscow from raising military compounds on it.

Russian ground, air and sea forces have held a series of drills in the Primorye region bordering North Korea in recent weeks.

As China's modernized military challenges U.S. interests in the Asia-Pacific, a RAND Corporation report said the risk of conflict is higher than in 2011.

The vessels will spend four months at sea, calling at nine foreign ports.

A new directive from Naval Surface Forces sparks concern that some sailors aren't getting anywhere near enough sleep.

The Soversheniy—meaning Impeccable—is scheduled to join Russia's Pacific fleet next year.

The Vladimir Monomakh will be permanently deployed in Russia’s far east.

Scientists are predicting that as early as 2030, large areas of the Pacific Ocean will become nearly uninhabitable for fish, crustaceans and other sea life.

Staff found octopus marks leading to the drainpipe and out into the ocean.

A NOAA team sent a mic to the ocean floor to study the effect of ambient noise on marine life.

Typhoon Atsani has generated winds of 160 mph.