Category Archives: earthquakes

Earthquake prediction is a fool’s errand

If you want to make earthquake scientists jumpy, all you need to do is ask, "can you predict the next earthquake?" In fact, any variation on the theme of ‘earthquake’ and ‘prediction’ will do – unless it is one which … Continue reading

Categories: deep time, earthquakes, geohazards, geology, ranting, society

Magma making earthquakes on Hawaii

Volcanic happenings are afoot on the Big Island of Hawaii. To be clear, Kilauea has been erupting continuously since 1983, but activity has waxed and waned. The last few weeks have definitely seen an uptick in unrest, with inflation and … Continue reading

Categories: earthquakes, geohazards, volcanoes

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

A Seismic Summary of 2017

Why 2017 was a quiet year – and an examination of the provocative hypothesis that 2018 may not be. Continue reading

Categories: earthquakes, geohazards, geophysics, tectonics

317 years since the last rupture of the Cascadia megathrust

At around 9pm on the 26th January 1700, the Cascadia subduction zone – a shallowly dipping thrust fault that runs more than 1000 km north from Cape Mendocino in Northern California to the vicinity of Vancouver Island, ruptured in an estimated magnitude 9 earthquake. Continue reading

Categories: earthquakes, geohazards, society