What Are the Causes of Earthquake Flashcards

Hypocenter

Epicenter

Movement along faults. (normal, reverse, thrust, and strike-slip faults)

Explosive eurption cause compression/seismic, landslides and magma diplacement.

Dam building, injecting waste water from underground.

Change in elevation on a fault line

Pressure differences caused by uneaven solar heating

It gets less dense

1.  Use sonar technology to check the depth at the specific times by transmitting soundwaves and reading the time it takes to bounce back.2. Use seafloor submarines called submersibles to allow direct obervations of the geologic features within the seafloor3. Use speccially equipped research vessels to allow us to drill holes into the seafloor to retrieve samples of the sedimentary and volcanic rock.

Paleomagnetism is the rock record of past changes in the earths magnetic field.

The smaller seas were created as chains of islands formed surrounding boddies of sea mass making smaller seas in the pacific ocean

Several seas were formed by present or past plate-tectonic activity. Others were valleys and low areas of flooded by rsing sea levels after the last ice age

Regional elevations are controlled primarily by the thickness of the crust, but can also be influenced by the temperature and ensity of materials in the curst upper mantle

1. Crust that is shortened, ex. such as by thrust faults in result thicken2. Add material to the surface3. Magma added to the crust at depth

1. Thinning the crust, ex. such as during normal faulting.2. crust erroded from the top3. Cooling of the crust or mantle