Unit 13: Earthquakes A. Earthquakes 1. Earthquake
... i. quantitative measurements – rely on calculations using seismograms 2. Richter Scale a. based on the amplitude of the largest seismic wave recorded on a seismogram b. most EQ measurements you hear on news reports use Richter scale c. scientists no longer use it 3. Moment Magnitude a. most widely u ...
... i. quantitative measurements – rely on calculations using seismograms 2. Richter Scale a. based on the amplitude of the largest seismic wave recorded on a seismogram b. most EQ measurements you hear on news reports use Richter scale c. scientists no longer use it 3. Moment Magnitude a. most widely u ...
Plate Boundaries and Earthquake Science
... generalized structure of the Earth o how do we know what is below our feet? we have only drilled down several km’s never through the crust 5km thick (ocean) and 35km thick (continents) in contrast, the Earth has a radius of 6,370km o examining the seismic waves as they pass through the Earth ...
... generalized structure of the Earth o how do we know what is below our feet? we have only drilled down several km’s never through the crust 5km thick (ocean) and 35km thick (continents) in contrast, the Earth has a radius of 6,370km o examining the seismic waves as they pass through the Earth ...
Section 12.1
... • Although a plate may be moving as a single unit, its boundaries act like they were made of many small sections like the line of carts. ...
... • Although a plate may be moving as a single unit, its boundaries act like they were made of many small sections like the line of carts. ...
to Unit 5 Topic 5-6
... • Primary or p waves are the fastest and can push through solids, liquids and gases • Secondary or s waves travel more slowly and can only pass through solids • Surface waves are the slowest of all, but their rolling motion can be very destructive (like a ripple effect on water) • Primary waves are ...
... • Primary or p waves are the fastest and can push through solids, liquids and gases • Secondary or s waves travel more slowly and can only pass through solids • Surface waves are the slowest of all, but their rolling motion can be very destructive (like a ripple effect on water) • Primary waves are ...
File
... It is the spot directly above the focus – on land How big was it? 9.2 to 9.6 on the Richter Scale What two things did the Valdivia quake cause? Tsunamis up to 82 feet tall ...
... It is the spot directly above the focus – on land How big was it? 9.2 to 9.6 on the Richter Scale What two things did the Valdivia quake cause? Tsunamis up to 82 feet tall ...
Seismic communication
Seismic communication, sometimes called vibrational communication, describes the conveying of information through seismic vibrations of the substrate. The substrate may be the earth, a plant stem or leaf, the surface of a body of water, a spider’s web, a honeycomb, or any of the myriad types of soil substrates. Seismic cues are generally conveyed by Rayleigh waves generated through vibrations on the substrate, or acoustical waves that couple with the substrate. Vibrational communication is an ancient sensory modality and it is widespread in the animal kingdom where it has evolved several times independently. It has been reported in mammals, birds, reptiles, amphibians, insects, arachnids, crustaceans and nematode worms. Vibrations and other communication channels are not necessarily mutually exclusive, but can be used in multi-modal communication.