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December 22, 2014

Search: explain how an magnitude of 8.0 earthquake could be classified as a low intensity

Number of results: 30,839

science
explain how an magnitude of 8.0 earthquake could be classified as a low intensity
February 13, 2011 by Anonymous

science
how does a magnitude-8.0 earthquake could be classified as a low-intensity earthquake? LAST SCIENCE QUESTION!
April 1, 2009 by Sara

maths
The magnitude of an earthquake with intensity I is measured using a seismograph. The intensity I is converted into the Richter scale number using the following formula R=log10I. An earthquake in Town A was measured 3 on the Richter scale, while the earthquake in Town B ...
May 8, 2013 by hemant

Math
An earthquake was recorded which was 1584893 times more powerful than a reference level zero earthquake. What is the magnitude of this earthquake on the Richter scale? Intensity on the Richter scale is log(I/Io).
December 4, 2013 by DROSP

Math (PreCalculus)
An earthquake was recorded which was 1584893 times more powerful than a reference level zero earthquake. What is the magnitude of this earthquake on the Richter scale? Intensity on the Richter scale is log(I/Io). Correct Answer is 6.268. But how to get that?
December 4, 2013 by DROSP

d
Calculus help!!Suppose an earthquake is measured with a magnitude of 6 on the Richter scale with an error of at most 2%. Use differentials to find the error in the intensity of the earthquake
November 7, 2012 by Anonymous

Earth Science
To measure the strength of an earthquake, you can use either a______scale or______scale. A)Richter B)seismograph C)mercalli intensity part:2 A)moment magnitude B)seismogram C)mercalli intensity
December 7, 2009 by george

health
Which type of exercise increases fat loss? A. High-intensity B. High-duration C. High-duration/low-intensity D. High-intensity/low-duration im stuk on this question and i can't get any information about it inside my head.weird can any one explain to me simple words please
September 16, 2008 by AK

Pre-Calculus
The Richtr scale was evied y Cahrles F.Richter a American geologist. The scale is based on the equation M(x)=logx/x0(little 0), where x is the seismographic reading of the earthquake and x0 i 1 miron 0.001mm (the seismographic reading of a zero-level earthuquake) a) Determine ...
December 21, 2009 by Andy

math
An earthquake has a magnitude of 6.7 on the Richter Scale.Find the intensity.
December 3, 2011 by Earthquakes

math
the seismic waves of a magnitude 6 earthquake are 10 squared times as great as a magnitude 4 earthquake. The seismic waves of a magnitude 4 earthquake are 10 times as great as a magnitude 3 earthquake. How many times as great are the seismic waves of a magnitude 6 earthquake ...
February 9, 2014 by nicey

Word problem 2
The 1985 Mexico city earthquake had a magnitude of 8.1 on the Richter scale. The 1976 earthquake in Tangshan, China was 1.26 times and intense. What was the magnitude of the Tangshan earthquake. Thanks
February 14, 2007 by Jen

Logarithmic Scales
In 1995, Japan had an earthquake of magnitude 7.2. What is the magnitude of an earthquake that is twice as intense?
March 28, 2012 by Anonymous

Earthquakes
What determines the magnitude of an earthquake? I know that two plates slide against one another and that creates friction and the potential energy turns into kinetic energy in the form of an earthquake. But how is the magnitude determined? Im thinking the longing the 2 plates...
September 28, 2010 by Lena

Logarithms
1.) A fossil is burned and the CO2 produced is captured. It produces 453 counts of radiation per gram. Under the same conditions atmospheric CO2 produces 19 277 counts. Calculate the age of the fossil. I have the formula: Nt = N0 e^ -t(ln2)/T Nt is the number of atoms of ...
September 4, 2012 by Amy

math-algebra
How do i solve these problems: 1. 2(-5y^3)^2+(-3y^3)^3 2. Lemon juice is 10^2 times as acidic as tomato juice. Tomato juice is 10^3 times as acidic as egg whites. How many times as acidic is lemon juice as egg whites? Write as a monomial. 3. The seismic waves of a magnitude 6 ...
February 5, 2008 by Jaylin

health
Which type of exercise increases fat loss? A. High-intensity B. High-duration C. High-duration/low-intensity D. High-intensity/low-duration can you help in anyway?
August 27, 2008 by AK

math
What is the magnitude on the Richter Scale of an earthquake measuring 3.7 x 10^5 i(sub 0)? How many times more intense is a Richter 5 earthquake than a Richter 2.5 earthquake?
November 12, 2011 by Nabil

Science
1) How much more energy is released in a 5.0 magnitude earthquake than a 4.0 magnitude earthquake. I know that each unit of Richter magnitude equates to roughly a 32-fold energy increase and that the amplitude has a tenfold increase but I am still confused on how to get the ...
February 28, 2010 by Janet

Science(Urgent)
1) How much more energy is released in a 5.0 magnitude earthquake than a 4.0 magnitude earthquake. I know that each unit of Richter magnitude equates to roughly a 32-fold energy increase and that the amplitude has a tenfold increase but I am still confused on how to get the ...
February 28, 2010 by Janet

science 6th grade
I am suppose to explain how the moment magnitude and Richter scales of earthquake measurement are similar and how they are different. Can you tell me if I am correct? They are alike because they always come up with the same rating for an earthquake. They are different because ...
February 11, 2011 by Reed

earth science...help
for this question: Put the folloing words together in a few sentence to explain their meaning and relationship to one another: seismic waves, seismograms, seismoghaps, and seismologists. is this answer suitable: Seismic wave is an elastic shock wave that travels through the ...
January 13, 2009 by Anonymous

Earth Science
How much more energy is released in a 5.0 magnitude earthquake than a 4.0 magnitude earthquake? I know that a tenfold increase in wave amplitude equals an increase of 1 on the scale so 1 to 2 = 10times so does that mean that 2 to 3 would be 10 more times?
February 28, 2010 by Janet

Science
Which scale measures the amount of damage after an earthquake? Richter scale Mercalli intensity scale moment magnitude scale seismograph scale
December 7, 2009 by george

Earth Science(Please help)
How much more energy is released in a 5.0 magnitude earthquake than a 4.0 magnitude earthquake? I know that a tenfold increase in wave amplitude equals an increase of 1 on the scale so 1 to 2 = 10times so does that mean that 2 to 3 would be 10 more times?
February 28, 2010 by Janet

math
A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 4.9 * 10^2 m. Find this earthquake's magnitude.
November 11, 2013 by lisa

math
A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 4.9 * 10^2 m. Find this earthquake's magnitude.
November 12, 2013 by Anonymous

MATH
A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 4.3 102m. Find this earthquake's magnitude.
February 8, 2013 by TONYA

physics
The intensity of an earthquake wave is measured to be 6 x10 ^6 J ms at a distance of 50 km from its source. Calculate the intensity when it passed the point 4 km to source ? What is the rate energy passed through an area of 6 ms^2 at 4 kW?
November 30, 2008 by Sandhya

math
On May 22, 1960, a powerful earthquake took place in Chile. It had a magnitude of 9.5. How much energy did this earthquake release?
November 20, 2014 by samantha

Earth Science(Please help)
1) How much more energy is released in a 5.0 magnitude earthquake than a 4.0 magnitude earthquake. I know that each unit of Richter magnitude equates to roughly a 32-fold energy increase and that the amplitude has a tenfold increase but I am still confused on how to get the ...
February 28, 2010 by Janet

Physics
The intensity of a particular earthquake wave is measured to be 5.0 multiplied by 106 J/m2s at a distance of 55 km from the source. (a) What was the intensity when it passed a point only 3.0 km from the source? (b) What was the rate energy passed through an area of 7.0 m2 at ...
January 31, 2010 by Eric

algebra
A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.9 102 m. Find this earthquake's magnitude on the Richter scale.
September 1, 2011 by Sharon

Math
A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.8 x10^2 m. Find this earthquake's magnitude on the Richter scale.
October 29, 2011 by Angel

algebra
A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.2 102 m. Find this earthquake's magnitude on the Richter scale.
October 30, 2011 by suzie

Physics
The intensity of an earthquake wave passing through the Earth is measured to be 2.5106 J/m^2 at a distance of 48 km from the source. What was its intensity when it passed a point only 2.0 km from the source? At what rate did energy pass through an area of 3.0 m^2 at 2.0 km?
December 2, 2010 by Jake

Science
The intensity of an earthquake wave passing through the Earth is measured to be 1.510^6 J/m^2*s at a distance of 58km from the source. What was its intensity when it passed a point only 2.0 km from the source? At what rate did energy pass through an area of 3.0 m^2 at 2.0 km ?
January 25, 2013 by Chris

Math
In 1986 an earthquake measuring 5.0 on the Richter scale hit northeast Ohio. This earthquake is _______ times as intense as a magnitude 2.0 quake
June 5, 2014 by Alexis

math
A seismograph 300km from the epicenter of an earthquake recorded a maximum amplitude of 5.8*10^2lrm, find this earthquake's magnitude on the RicHTER scale to the nearest tenth.
March 12, 2012 by sue

Algebra
A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.3 x 10^2 um. Find the earthquake's magnitude. Round your answer to one decimal place.
November 7, 2014 by Paul

college physics
The intensity of an earthquake wave passing through the Earth is measured to be 2.510^6 J/m^2 at a distance of 43 km from the source. What was its intensity when it passed a point only 2.0 km from the source? AND At what rate did energy pass through an area of 4.0 m^2 at 2.0 ...
April 27, 2010 by Anonymous

alegbra
a seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude 5.3x10^2 um. Find this earthquake's magnitude. Round this answer to one decimal place.
May 10, 2014 by Mary Ann

algebra
A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.7 102 m. Find this earthquake's magnitude on the Richter scale. (Round your answer to the nearest tenth.)
December 18, 2011 by suzan

math
A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.2 102 m. Find this earthquake's magnitude on the Richter scale. (Round your answer to the nearest tenth.) M =
January 23, 2012 by kiki

Algebra
A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.7 102 m. Find this earthquake's magnitude on the Richter scale. (Round your answer to the nearest tenth.)
July 20, 2012 by Paul

Algebra
A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.5 102 m. Find this earthquake's magnitude on the Richter scale. (Round your answer to the nearest tenth.)
November 3, 2012 by Renee Tyler

MATH
A semiograph 300km from the epicenter of an earthquake recorded a maxximum amplitude of 5.3x10^2 um. Find this earthquake's magnitude on the Richter scale. (Round your answer to the nearest tenth)
November 4, 2012 by TEDDY

Science
If a tsunami develops during an underwater earthquake, what will most likely occur? a. deep-ocean sediments will travel great distances. b. no destruction will occur near the origin of the earthquake. c. the magnitude of the earthquake will determine the direction of the ...
March 17, 2009 by Angie

math
A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.8 multiplied by 102 m. Find this earthquake's magnitude on the Richter scale. (Round your answer to the nearest tenth.) M =
October 20, 2011 by Anonymous

DeVry University
A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.9 102 m. Find this earthquake's magnitude on the Richter scale. (Round your answer to the nearest tenth.)
January 20, 2012 by Sandra Beasley

ALGEBRA
A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.4 multiplied by 102 m. Find this earthquake's magnitude on the Richter scale. (Round your answer to the nearest tenth.)
April 16, 2012 by Randy

College Math
A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.3 102 m. Find this earthquake's magnitude on the Richter scale. (Round your answer to the nearest tenth.)
April 16, 2012 by Yvonne

ALGEBRA
A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.5 multiplied by 102 m. Find this earthquake's magnitude on the Richter scale. (Round your answer to the nearest tenth.) M =
April 25, 2012 by Randy

science
To locate the epicenter of an earthquake a seismologists must determine all of the following except ? a) the difference between arrival time of P and S waves b) seismographic locations data from the seismograph locations c) the distance from the epicenter to at least three ...
February 18, 2014 by victoria

Math - Working with Logs!!
On September 26 2001, an earthquake in North Bay measured 5.0 on the Ritcher scale. What is the magnitude of an earthquake 3 times as intense as North Bay's earthquake? I would post my answer, but in text, it's just confusing and I can't post picture links to show my work... ...
December 11, 2007 by Anonymous

Physics: Earthquakes
I'm studying for an upcoming exam and I came across this problem: 10 seconds separate the P- and S-wave arrival times of an earthquake which shakes you 1m. How far away is the earthquake epicenter and what is the magnitude? I'm stuck and would really appreciate the help! Thanks!
April 28, 2014 by Student

math
Ok.. "The strongest recorded earthquake in the world took place in Child on May 22, 1960. It had a magnitude of 9.5 on the Richter scale. The strongest quake actually recorded in Canada was magnitude 8.1 on August 22, 1949 and occurred off the Queen Charlotte Islands. a)How ...
April 8, 2013 by Josh

Computer
Computers are classified into Four areas, please explain how they are classified?
March 3, 2010 by Waalyn Waal

physics
Elephants communicate via infrasound, at frequencies as low as 11 Hz that can travel up to 9 km. The intensity of these sounds can reach 106 dB, measured a distance of 4 m from the source. a) Determine the intensity level in W/m2 of the infrasound at 4 m from the source. b) ...
December 1, 2014 by Haley

Physics
Elephants communicate via infrasound, at frequencies as low as 11 Hz that can travel up to 9 km. The intensity of these sounds can reach 106 dB, measured a distance of 4 m from the source. a) Determine the intensity level in W/m2 of the infrasound at 4 m from the source. b) ...
December 3, 2014 by Annie

Alegbra
11. What, to the nearest tenth, will an earthquake measure on the Richter scale if it has an intensity of I = 43, 512,000 I 0?
August 1, 2010 by Jessica

Algebra 2
PLEASE HELP-DUE APRIL 5TH, 2011!!!! EARTHQUAKES an earthquake rated at 3.5 on the Richter scale is felt by many people, and an earthquake rated at 4.5 may cause local damage. The Richter scale magnitude reading m is given by m = log (base 10) x, where x represents the ...
March 27, 2011 by Lindsey

scientist
In 1976 a powerful earthquake hit the city of Tangshan, China. Scientists had failed to predict the earthquake. If people had paid attention to the unusual animal behavior that preceded the earthquake, however, they would have known it was coming. Animals can often sense an ...
September 4, 2009 by Anonymous

math
The strongest recorded earthquake in the world took place in Chile on May 22 1960. It had a magnitude of 9.5 on the Richter scale. The strongest quake actually recorded in Canada was magnitude 8.1 on August 22 1949 and occurred off the Queen Charlotte Islands. (The strongest ...
March 19, 2013 by Samantha

statistics
Is the magnitude of an earthquake related to the depth below the surface at which the quake occurs? Let x be the magnitude of an earthquake (on the Richter scale), and let y be the depth (in kilometers) of the quake below the surface at the epicenter. Suppose a random sample ...
August 20, 2010 by karen

adv functions
The strongest recorded earthquake in the world took place in Chile on May 22 1960. It had a magnitude of 9.5 on the Richter scale. The strongest quake actually recorded in Canada was magnitude 8.1 on August 22 1949 and occurred off the Queen Charlotte Islands. (The strongest ...
March 18, 2013 by Samantha

physics
Elephants communicate via infrasound, at frequencies as low as 14 Hz that can travel up to 10 km. The intensity of these sounds can reach 103 dB, measured a distance of 5.0 m from the source. Determine the intensity level of the infrasound 10 km from the source, assuming the ...
November 24, 2014 by May

math30
The 1933 earthquake in Japan registered 8.9 on the Richter scale. a.The 1985 earthquake in Peru registered 7.7 on the Richter scale. How many more times intense was the earthquake in Japan? Round your answer to one decimal place. b. What would the Richter scale reading be of ...
July 11, 2012 by alejandro

Physics help!
There is evidence that elephants communicate via infrasound, generating rumbling vocalizations as low as 14 Hz that can travel up to 10 km. The intensity level of these sounds can reach 105 dB, measured a distance of 4.5 m from the source. Determine the intensity level of the ...
May 7, 2013 by Abdul A.

geo
I need 3 reasons why a huge earthquake wouldnt occur in NYC. I have the following points: 1) New york city doesn't lay beneath any fault lines I also said that if an earthquake were to occur, the magnitude would be on the lower end of the ritcher scale. But how would it occur ...
September 27, 2010 by Lena

Precalc
Can someone please help me? I don't know how to solve for time under 23 units. When I try I think I get the answer for above 23 units and when I try to subtract from the whole period my answer is wrong. The correct answer is 5.1337 hours. Fidel is measuring the light intensity...
August 19, 2011 by Rose

Math
How much energy, in joules, is released by an earthquake of magnitude 3.4?
December 14, 2013 by Clare

Physics
Intensity of 4Mhz in 1.54mm = 2W/cm2 at 4cm intensity =? I know the answer is 0.32, but I do not understand why. Can you please explain? I did figure out that Attenuation= 8db. 4/2 x 4cm = 8db. Thank you in advance. I appreciate it!
October 27, 2014 by Connie

Physics - electric field intesity (check +help)
Points A and B are 13.0 apart. A charge of +8.0mu is placed at A and another charge at +5.0mu is placed at B. Point P i located 5.0cm from A and 12.0cm from B. What is the magnitude and direction of the electric field intensity at P? Ans: i got the magnitude as 2.9*10^, ...
December 4, 2010 by Farah

science
A _____________________ is an earthquake that occurs after a large earthquake in the same area
February 28, 2008 by Julia

physics
A bell is rung at a sound intensity of 70dB . A trumpet is blown at an intensity that is greater by a factor of 10^3. What is the intensity level of the trumpet
May 20, 2012 by Melissa

Physics/Algebra
Physics: For a 225-watt bulb, the intensity I of light in lumens at a distance of x feet is I=225/x^2. a. What is the intensity of light 5 ft from the bulb? b. Suppose your distance from the bulb doubles. How does the intensity of the light change? Explain.
May 1, 2014 by Sandra

Science
I need to find info. about earthquakes, such as what causes them..what are the consequences of earthquake..definition of earthquake...etc. Thank you
May 30, 2008 by Amanda

Math
What magnitude of earthquake would release energy equivalent to 35 trillion jules? I know the formula is: E= (2.5 X 10^4) X 10^1.5 X M
October 20, 2012 by Sam

Earth Science
7. The original location of an earthquake is also known as the A. hotspot. B. magnitude. C. horizon. D. epicenter.
September 15, 2014 by jitboy

science
what is the relationship between a one-point increase in magnitude and the amount of energy released by an earthquake?
March 10, 2009 by gaga

Jones
1. To what extent can earthquakes be predicted? 3. What can a trench dug across an active fault show about past fault movement? 4. What is a seismic gap, and what is its significance in determining future fault activity? 5. What information indicates the probable magnitude of ...
October 10, 2010 by Joe

Science
1. _______ magma causes powerful and explosive volcanic eruptions. A. Andesitic B. Rhyolitic C. Basaltic D. Composite B? 2. A common characteristic of mountains formed by two colliding continents is marine _______ rock. A. sedimentary B. metamorphic C. limestone D. igneous A...
February 1, 2014 by Beatrice

Applied maths
2. When light passes through a transparent medium, its intensity I at a depth d can be modelled using the equation where I0 is the initial intensity, and k is a constant. If the intensity of sunlight is reduced to 54% of its original value after penetrating through a depth of...
February 13, 2013 by DAVID

Physics(Please help)
The intensity (in W/m2) of one sound is 4.83 times as great as the intensity of another sound. Relative to the quieter sound, what is the intensity level of the louder sound? I am not sure how to start this. Thank you.
June 21, 2012 by Hannah

English
In 1976 a powerful earthquake hit the city of Tangshan, China. Scientists had failed to predict the earthquake. If people had paid attention to the unusual animal behavior that preceded the earthquake, however, they would have known it was coming. Animals can often sense an ...
May 7, 2009 by john browm

Intermediate Algebra
The magnitude of an earthquake on the Richter scale is given by the formula R=log I, where I is the number of times more intense the quake is than the smallest measurable activity. How many times more intense i an earthquake having a richter scale number of 3.7 than the ...
April 29, 2012 by Sarahh

math
after passing therough a material t centimeters thick, the intensity I(t) of a light beam is given by I(t) =(4^-ct)Io, where Io is the initial intensity and c is a constant called the absorption factor. Ocean water absorbs light with an absorption factor of c= .0101. at what ...
February 24, 2012 by Suzie

english : CT
In 1976 a powerful earthquake hit the city of Tangshan, China. Scientists had failed to predict the earthquake. If people had paid attention to the unusual animal behavior that preceded the earthquake, however, they would have known it was coming. Animals can often sense an ...
March 19, 2008 by rose

critical thinking
In 1976 a powerful earthquake hit the city of Tangshan, China. Scientists had failed to predict the earthquake. If people had paid attention to the unusual animal behavior that preceded the earthquake, however, they would have known it was coming. Animals can often sense an ...
April 13, 2008 by Matt

critical thinking
In 1976 a powerful earthquake hit the city of Tangshan, China. Scientists had failed to predict the earthquake. If people had paid attention to the unusual animal behavior that preceded the earthquake, however, they would have known it was coming. Animals can often sense an ...
September 11, 2008 by d

critical thinking
In 1976 a powerful earthquake hit the city of Tangshan, China. Scientists had failed to predict the earthquake. If people had paid attention to the unusual animal behavior that preceded the earthquake, however, they would have known it was coming. Animals can often sense an ...
January 22, 2009 by bibi

math
a seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.5 *10^2,find the earthquakes magnitude. round one decimal
February 15, 2014 by evelyn

math
If it has been determined that the probability of an earthquake occurring on a certain day in a certain area is 0.05, what are the odds against an earthquake
October 8, 2009 by jessica

Critical Thinking
In 1976 a powerful earthquake hit the city of Tangshan, China. Scientists had failed to predict the earthquake. If people had paid attention to the unusual animal behavior that preceded the earthquake, however, they would have known it was coming. Animals can often sense an ...
June 6, 2009 by mary

math
If it has been determined that the probability of an earthquake occurring on a certain day in a certain area is 0.05, what are the odds against an earthquake? multiple choice A) 20 : 1 B) 1 : 20 C) 18 : 1 D) 19 : 1 3
October 11, 2009 by ann

Animal Farm (civics)
True o False Both times that the windmill was destroyed was actually because of an earthquake. i known 1 time was caused by an earthquake by i forgot the other time
October 30, 2013 by Anonymous

earth sceince
Which of the following statements is TRUE? S-waves are able to pass through the Earth's core. Continental-continental plate convergence is reponsible for the creation of mountain ranges. Oceanic crust is on average about 60 - 100 km thick. The Richter Scale measures earthquake...
October 10, 2008 by Deborah

algebra
find 10-7 divided by 10-7 to determine how much more intense earthquake A was than earthquake B 10-7 DIVIDED BY 10-3
January 5, 2011 by ron

physics
An earthquake generates three kinds of waves: surface waves (L waves), which are the slowest and weakest; shear (S) waves, which are transverse waves and carry most of the energy; and pressure (P) waves, which are longitudinal waves and travel the fastest. The speed of P waves...
October 24, 2011 by fiko

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