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Did the Alaskan earthquake of 1964 have a higher seismic moment than the San Francisco earthquake of 1906?
Wiki User
∙ 10y ago
because it caused more damage
Wiki User
∙ 10y ago
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Why did the Alaskan earthquake of 1964 have a higher seismic moment than the San Francisco earthquake of 1906?
because it released more total energy
What kind of scientist studies the movement and recordings of earthquake?
A scientist who studies earthquakes is called a seismologist. Seis- is a prefix meaning 'earthquake', such as in 'seismograph' (a device that records the waves of an earthquake) or 'seismic' (having to do with earthquakes. Example: Seismic activity is higher in areas along tectonic plate boundaries).
Explain why longitudinal and transverse waves are named the way they are?
Longitudinal waves that are produced by earthquake are called primary waves because they are detected by seismometers before the other types of seismic waves due to their higher velocity which means they travel from the epicentre of an earthquake to the seismic station more quickly than the other types of seismic waves.
Where are the intensity values of an earthquake usually higher?
Assuming all other properties are equal, the intensity of an earthquake is highest at it's epicentre and decreases with increasing distance from this point. In reality however the Earth's surface and subsurface is highly heterogeneous (in other words it is very variable - there are lots of differing types of soils and rocks with varying strengths and other physical properties). The amplitude of seismic waves (how strongly they shake the surface) is in turn strongly affected by the type of material through which they travel. For example the amplitude of seismic waves will be much higher in soft sediments such as soils than in hard rock masses such as granites. Because of this earthquake intensities may be highest in areas with "poor" ground conditions (such as the soft soils described above) even if they are a greater distance from the earthquake's epicentre.
Where are intensity values of an earthquake usually higher?
Assuming all other properties are equal, the intensity of an earthquake is highest at it's epicentre and decreases with increasing distance from this point. In reality however the Earth's surface and subsurface is highly heterogeneous (in other words it is very variable - there are lots of differing types of soils and rocks with varying strengths and other physical properties). The amplitude of seismic waves (how strongly they shake the surface) is in turn strongly affected by the type of material through which they travel. For example the amplitude of seismic waves will be much higher in soft sediments such as soils than in hard rock masses such as granites. Because of this earthquake intensities may be highest in areas with "poor" ground conditions (such as the soft soils described above) even if they are a greater distance from the earthquake's epicentre.
What ways to do after earthquake?
Make for higher ground.
What type of waves are body waves?
They're seismic waves. seismic waves are waves of energy that travel through the Earth's layers, and are a result of an earthquake, explosion, or a volcano that imparts low-frequency acoustic energy. Many other natural and anthropogenic sources create low amplitude waves commonly referred to as ambient vibrations. Seismic waves are studied by geophysicists called seismologists. Seismic wave fields are recorded by a seismometer, hydrophone (in water), or accelerometer.
When earthquake occurs where would the intensity be higher?
The intensity would be higher near the epicenter.
Where do people first feel the ground shaking during an earthquake?
The strongest shaking is towards the center of the actual earthquake which it is called the focus. The epicenter of an earthquake is the point on the Earth's surface above the focus or hypocenter which is the point within the Earth where the rupture occurs. As such the epicenter is the closest point to this and the seismic waves have had to travel through the smallest amount of material and so have undergone the least amount of attenuation (in this case attenuation is a reduction in amplitude of the seismic waves due to energy being by moving through the Earth). However as with a lot of things in Earth sciences there can be exceptions to this! This is because the amplitude of seismic waves is affected by the density (related to the level of compaction in the case of soils) of the material through which it is traveling). So a seismic wave traveling through a hard rock such as granite will have a much lower amplitude than one traveling through a softer, less dense, poorly compacted material such as a soil and so due to the higher amplitude there will be a higher level of perceived and measurable ground shaking, even an equal distances from the epicenter.
What part of Australia has a higher chance of getting hit by an earthquake?
dont you mean what part of an earthquake will get hit by australia
Would an earthquake be more severe if it had a higher or lower magnitude?
An earthquake with a higher magnitude would generally be more severe. Magnitude measures the amount of energy released by an earthquake, so a higher magnitude indicates a stronger earthquake with more potential to cause damage. However, the severity also depends on other factors including the depth of the earthquake, population density, and building infrastructure in the affected area.
What caused a second earthquake to hit Haiti on Jan 20 2010?
There would be a second earhquake after the first, it always do,just like the earthquake in the China in 2008. Actually, it is called an aftershock. If the aftershock was a higher valve then the first quake then the aftershock becomes the earthquake and the earthquake becomes the aftershock. Hope you get this. So to put it in perspective, the main hit is called an earthquake and any following disruptions are called aftershocks and not considered earthquakes. To answer the question: Geophysicists in the US have found that the "aftershocks" produced by earthquakes are triggered by the dynamic seismic waves from the main shock rather the changes in stress in nearby faults brought about by the rearrangement of the earths crust,as previously believed.
