One of the ways scientists are attempting to reduce greenhouse gases is to inject these gases into the ground. Specifically, they are testing injecting them, into basalt which is type of igneous rocks usually forming the first (rock) layer (sandwiched between the sedimentary & gabbro layers) in the oceanic crust basalt and in volcanic regions.
The above video features Iceland and its geothermal plants. Iceland is a heaven for geothermal energy as it lies along the Mid-Atlantic Ridge (MAR) (i.e. where Mid-Atlantic ocean floor is spreading apart in opposite directions forming a ridge). Most notably Iceland lies along the V-Shaped Reykjavik ridge (figure below; Google maps) which is part of the Norther MAR.
An earthquake is the result of a sudden release of “strain” that is built-up between two tectonic boundaries or at a fault line*, usually slipping in opposite directions.
The following video by the California Academy of Sciences shows a computer simulation of an earthquake at the Hayward fault which is one and the most concerning of several faults in California. The most famous fault being the San Andreas fault.
via KQED Science
- A fault is a fracture in the rocks of Earth’s crust. There three main categories of faults: Strike-slip, dip-slip, & Oblique-slip.
I have just found out that an earthquake has hit Lebanon. I did not feel it but 7 witnesses have reported the earthquake so far.
Details are as follows:
date: 2014-09-01 (July 06 2014)
time: 235011 / 205011 (Beirut / UTC)
depth: 20 km
epicenter: 41.14°N, 36.08°E (61 km NE of Beirut, 20 km NW of Baalbek)
(moment) magnitude Mw: 4.3