Quake of 8.9-magnitude, aftershocks, and tsunamis strike Japan, causing major damage, triggering evacuations in several countries, and leading to tsunami warnings for Hawaii and West Coast of U.S.
The Tokyo Sky Tree is built on reclaimed land in quake-prone Japan, but engineers are confident the world's tallest tower won't topple.
Laptop accelerometers are being recruited by scientists who study seismic activity.
QuakeFinder CEO Tom Bleier explains the functionality of the QF-1005 Ground Instrument, a machine that can telegraph future earthquakes.
The company is thinning out its middle-management ranks in an attempt to cut costs, according to unnamed sources in a GigaOm report.
Those in earthquake country visit USGS.gov to find out the magnitude of the latest temblor. But thanks to Capitol Hill gridlock, the site initially had no data after a 3.0 quake Sunday night.
The Big One is due in Tokyo, but 300-ton pendulums on rooftops of tall buildings could cut shaking by 60 percent.
Internet research Renesys says it's surprised by how little the quakes have affected the undersea Internet cables that keep Japan connected to the rest of the world.
Users of the Apple mobile operating system in Japan will receive early notifications from their devices if an earthquake strikes the country.
Hitachi Zosen has developed a seawall that closes automatically when under tsumani threat and doesn't require a power source or human control.