Tag Archives: Japan

Earthquake warning systems are hard, but not having one is worse.

The premise of earthquake early warning systems is simple. An earthquake produces several different kinds of seismic waves that race away from the rupture point. Because they are different kinds of vibrations, they travel at different speeds; and the farther … Continue reading

Categories: earthquakes, geohazards, geophysics, links, society

Environmental Earth Science in the News Roundup #5

View the story “Environmental Earth Science News Roundup #5” on Storify

Categories: by Anne, teaching

The humbling legacy of the Tohoku earthquake

A year ago on Sunday, one of the biggest earthquakes ever recorded ruptured the subduction megathrust that dips beneath the east coast of Japan. The rupture displaced the seafloor by tens of metres and generated tsunami waves up to 20 … Continue reading

Categories: earthquakes, geohazards, tectonics

Earthquake location matters, part eleventy

It’s been a month since the Tohuku earthquake and tsunami rattled then swamped northern Honshu, and Japan continues to be rattled by sizeable aftershocks. A magnitude 7.1 shock last Thursday initially set off further tsunami alerts but the rupture turned … Continue reading

Categories: earthquakes, focal mechanisms, geohazards, society

Sendai/Tohoku earthquake round-up

It’s hardly surprising that my browsing this week has been focussed largely on the aftermath of the earthquake and tsunami in Japan (which is now officially being referred to as the Tohuku earthquake, rather than the Sendai earthquake; I’d complain … Continue reading

Categories: earthquakes, geohazards, links