Shipboard researchers from the University of Hawaii whose instruments unintentionally recorded the passing of a tsunami propose that commercial ships be equipped with similar devices to create an ad-hoc tsunami detection network at a fraction of the cost of deep sea buoys.
The scientists were returning from Guam, where they had been measuring sea elevation in February 2010, when their precision GPS picked up a long-wavelength, open-water tsunami generated by an 8.8 magnitude earthquake in Chile. At sea the tsunami amplitude was 9.4 cm and would have been difficult to discern.
Because it can moderate the damaging effects of earthquakes, base-isolation is a technique used primarily in seismically active regions. ENR takes a look at some of the largest applications of base-isolation technologies in the world.