John Q's Geology 9 Blog

                                   Continental Drift Theory Continental drift describes one of the earliest ways geologists thought continents moved over time.  According to Alfred Wegener, the proponent of the Continental Drift Theory, continental landmasses were "drifting" across the Earth, sometimes plowing through oceans and into each other.  He called this movement continental drift.  Wegener was convinced that all of Earth's continents were once part of an enormous, single landmass called Pangaea. Pangaea existed about 240 million years ago.  By about 200 million years ago, this supercontinent began breaking up.  Over millions of years, Pangaea separated into pieces that moved away from one another.  These pieces slowly assumed their positions as the continents we recognize today.  Modern day scientists think that several supercontinents like Pangaea have formed and broken up over the course of the Earth's lifespan.  These include Pannotia, which formed about 60

HAZARDS, DISASTERS, and CATASTROPHES For an individual outside of the scientific community, the terms hazard, disaster, and catastrophe can be used synonymously or be interpreted interchangeably. An event such as an earthquake for instance can occur at any given area, but depending on its effects or aftermath can be classified as either a hazard, disaster, or catastrophe.  So what's the real score among these three? The level of severity or effects of an event determines its classification. Hazard A  hazard  is any natural process or event that poses a direct threat to the human environment. The event itself is not a hazard; rather, a process or event becomes a hazard when it threatens human interests.   Disaster A  disaster  is the effect of a hazard on society, usually as an event that occurs over a limited time in a defined geographic area. The term disaster is used when the interaction between humans and a natural process results in significant property damage, injuries, or los

INDONESIA    The   Emerald   of the Equator Indonesia, is a vast country spanning over 1.9 million square kilometres  and is the world’s 14th largest country in terms of land area.  Indonesia is an archipelago of over 17,500 islands. Fast Facts About Indonesia Location : Southeastern Asia, archipelago between the Indian Ocean and the Pacific Ocean Capital City : Jakarta Official Language : Bahasa Indonesia    Population :   253,609,643 (July 2014 est.) Main Ethnic Groups : Javanese, Sundanese, Indonesian   (Malay), Madura Major Languages : Bahasa Indon