Second massive Kermadec Islands earthquake in 4 months time

Earthquake overview :  At 05:57 October 22 2011 local time, a massive 7.4 earthquake struck the Kermadec trench area. The closest island at several hundred km was Raoul Island. The island is a scientific base from New Zealand and people are well trained to deal with strong earthquakes which are … [Read more...]

Understanding the many moderate Oregon (USA) seaquakes

Since a few months the transform fault zone about 350 km out of the Coos Bay Oregon coast is discharging energy by means of earthquakes of magnitude 5.x The Blanco Transform Fault as it is called, has become the most intensely studied ocean transform fault in the world. Oregon State University … [Read more...]

Understanding the Vanuatu M 7.3 earthquake

The Vanuatu earthquake of December 25, 2010, occurred as the result of normal-faulting within the Australia plate, in the region of the boundary between the Australia plate and the Pacific plate (see purple line below). In the epicentral region of the earthquake, the Australia plate moves … [Read more...]

Understanding the creation and the earthquakes of the Galapagos Islands

Galapagos tectonics Darwin had part of the answer on the Galapagos islands. The answer to the origin of the Galápagos  was only available after 1958, when continental drift, or plate tectonics, was discovered.  We now understand that the surface of the earth is divided into massive tectonic … [Read more...]

Understanding the Vanuatu M 7.3 earthquake

Which are Nature's triggers for the massive Vanuatu earthquake from August 10,2010 ? In plate tectonics, a convergent boundary also known as a destructive plate boundary (because of subduction), is an actively deforming region where two (or more) tectonic plates or fragments of lithosphere … [Read more...]