Mount Erebus is the southernmost active volcano on Earth, located on Ross Island in the Antarctic continent. It is famous for its persistent convective lava lake, one of only a few in the world. It was discovered in 1841 by ...
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A seismograph is an instrument used to detect and record seismic waves (P, S and L waves). It consists of a weighted pen or electronic sensor that remains steady due to inertia while the surrounding frame moves with the shaking ...
The Richter scale “saturates” (fails to distinguish) between very large earthquakes (above 7.0) because it only measures peak wave amplitude. The Moment Magnitude Scale (Mw) measures the total energy by considering the fault area and the amount of slip, providing ...
While erosion, volcanoes and weathering are processes that occur directly on or from the terrestrial surface, a Tsunami is a phenomenon that originates underwater (on the seafloor). Although its effects are felt on the coast, the “event” itself is a ...
The line connecting places in a region where an earthquake is experienced at the same time is technically called a Coseismal line. It maps the “arrival time” of seismic waves. However, in many contexts, the isoseismal line is used to ...