New study reconstructs mega-earthquakes timeline in Indian Ocean
A new study on the frequency of past giant earthquakes in the Indian Ocean region shows that Sri Lanka, and much of the Indian Ocean, is affected by large tsunamis at highly variable intervals, from a few ...
Old evidence leads to new ideas about earthquake hazards in Pacific Northwest
(Phys.org) —Gary Griggs began studying sediment deposits on the deep-sea floor off the Oregon coast in 1965 as a graduate student in oceanography at Oregon State University. Now, almost 50 years later, ...
Vancouver: Nearby Georgia basin may amplify ground shaking from next quake
Tall buildings, bridges and other long-period structures in Greater Vancouver may experience greater shaking from large (M 6.8 +) earthquakes than previously thought due to the amplification of surface waves ...
Scientists anticipated size and location of 2012 Costa Rica earthquake
Scientists using GPS to study changes in the Earth's shape accurately forecasted the size and location of the magnitude 7.6 Nicoya earthquake that occurred in 2012 in Costa Rica.
Research helps paint finer picture of massive 1700 earthquake
(Phys.org) —In 1700, a massive earthquake struck the west coast of North America. Though it was powerful enough to cause a tsunami as far as Japan, a lack of local documentation has made studying this historic ...
13-year Cascadia study complete -- and Northwest earthquake risk looms large
A comprehensive analysis of the Cascadia Subduction Zone off the Pacific Northwest coast confirms that the region has had numerous earthquakes over the past 10,000 years, and suggests that the southern Oregon ...
Report: US to get seas rising by 2030 (Update)
The West Coast will see an ocean several inches (centimeters higher in coming decades, with most of California expected to get sea levels a half foot higher by 2030, according a report released Friday.
New research on Japanese quake ominous for Pacific Northwest
Scientists are still unraveling last year's giant Tohoku earthquake and tsunami in Japan, and some of what they're finding doesn't bode well for the Pacific Northwest.
Tremors between slip events: More evidence of great quake danger to Seattle
(PhysOrg.com) -- For most of a decade, scientists have documented unfelt and slow-moving seismic events, called episodic tremor and slip, showing up in regular cycles under the Olympic Peninsula of Washington state and Vancouver ...
Rising above the risk: America's first tsunami refuge
Washington's coast is so close to the seismically active Cascadia Subduction Zone that if a megathrust earthquake were to occur, a tsunami would hit the Washington shoreline in just 25 minutes.
M 9.0+ possible for subduction zones along 'Ring of Fire,' study suggests
The magnitude of the 2011 Tohoku quake (M 9.0) caught many seismologists by surprise, prompting some to revisit the question of calculating the maximum magnitude earthquake possible for a particular fault. New research offers ...
Japan ignores skeptics, keeps goal of earthquake prediction
In a nondescript government building near the Imperial Palace, a team of Japanese seismologists stands ready to predict an earthquake.
Deep mission: Japan takes aim at the source of megaquakes
Even in port, it's easy to see how the research vessel Chikyu got its nickname. From the waterline to the top of its drilling derrick, the vessel also known as "Godzilla-Maru" towers nearly 30 stories tall.
Great Alaska Earthquake shook Alaska 50 years ago
Electric clocks on walls in Anchorage shut down at 5:36 p.m. on March 27, 1964. Time stopped at the start of the '64 Great Alaska Earthquake, the second largest ever recorded at magnitude 9.2.