Tech earthquake is about the tectonic change tech is bringing to all businesses, whether it is through the introduction of new mobile devices, the changes to TV screens, the transformation of manufacturing, and the way businesses and other institutions have to deal with those changes.

FORBES: Tech Earthquake

Severity is calculated by gathering earth-science data wind-patterns to assess the strength of a hurricane, shifts in tectonic plates to determine the strength of an earthquake.

ECONOMIST: Reinsurance risks

Instead of occurring at a plate boundary along an area called a subduction zone, where one tectonic plate is diving beneath another, this earthquake occurred in the middle of an oceanic plate, where the faults in the crust essentially moved from side to side instead of up and down.

MSN: Why this Indonesia quake didn't spark a monster tsunami

The effects of the 2011 tsunami in Japan were felt across the Pacific Ocean to earthquake-prone California, which shares the same tectonic plate.

FORBES: Earthquakes, Maybe. But Is Los Angeles Prepared For A Tsunami?

The earthquake happened along a line where the Earth's Indo-Australian and Eurasian tectonic plates grind together, in the waters west of Sumatra.

ECONOMIST: Deluged without warning | The

The earthquake levelled a country that was still recovering from the devastating 2008 cyclones and its tectonic magnitude and impact is dwarfed by the extent of the physical and emotional damages suffered by the Haitian people.

UNESCO: EDUCATION