Show:
sanfransico quake
Prince william sound earthquake
Mississippi Valley
Facts
Volcabulary
100
What was the date?
April 18, 1906
100
What was the date?
March 27, 1964
100
What were the dates?
Decemeber 16, 1811 January 23, 1812 FEbuary 7, 1812
100
Earthqakes and Valcanoes are caused by -
Similar Forces
100
the spot on the surface of the earth directly above the point under the earth where an earthquake begins
What is epicenter
200
What is the duration?
45-60 seconds
200
What was the duration?
about 4 min.
200
What was the duration?
Unknown
200
Earthquakes are tradidtionally named for -
The point of their epicenter
200
a measure of the amount of energy released by an earthquake, reported as Richter magnitude or moment magnitude
What is Magnitude
300
Where is the epicenter?
Sanfransico
300
Where was the epicenter?
College Fiord Alaska
300
Estimated epicenters: December 16, 1811: Northwest Arkansas January 23, 1812: New Madrid, Missouri Feburary 7, 1812: New Madrid, Missouri
December : Northwest Arkansas January: New Madrid, Missouri Febuary: New Madrid, Missouri
300
trumors are strongest - ( where)
where the epicenter is
300
the point under the at which the rock first breaks or slip in an earthquake
What is focus
400
Whats the magnitude?
about 7.8
400
What was the magnitude?
9.2
400
What are the magnitudes?
about 8 min.
400
looking back at the old big events of valconoes people think they are sign of -
Signs of inpending doom
400
breaks in the earths crust caused by the movement of tectonic plates
What is faults