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How far did the seismic waves from the Haitian earthquake travel?
According to the US Geological survey the Haitian Earthquake had the capacity to cause some minor structural damage to buildings as far away as 300 km from the Earthquakes epicentre (level V or 5 on the Modified Mercalli Intensity scale. It was felt by humans as far away as Guantanamo in Cuba (level III or 3 on the Modified Mercalli Intensity scale) and would most likely have been detected by seismometers all over the world. Please see the related question and link.
Do tsunamis cause earthquakes?
Earthquakes are one (but not the only) cause of tsunamis.
How do convergent and transform boundaries cause earthquakes?
It can cause earthquakes, volcanoes, oceanic trenches, mountains, tsunamis, and subduction.
Are earthquakes and volcanoes related?
Earthquakes can cause a volcano to erupt.
All faults will cause earthquakes?
It all depends on how big the fault is, bigger ones will cause bigger earthquakes, while smaller, or small ones may cause no earthquake at all.
What scale measures the damage an earthquake causes?
The Modified Mercalli Intensity (MMI) Scale rates earthquakes acxcording to how much damage they cause at a particular place and the measured ground accelarattions as recorded by a seismomter. In Europe the Macroseismic sclae is used which is similar in concept to the MMI scale.
How earthquakes and the destruction they cause are measured?
Earthquakes are measured using the Richter scale or the moment magnitude scale, which quantify the energy released by an earthquake. The destruction caused by earthquakes is assessed using the Modified Mercalli Intensity (MMI) scale, which measures the intensity of shaking felt at a particular location and the resulting damage to structures. Additionally, advancements in technology have led to the use of seismometers and accelerometers to provide real-time data on ground shaking and potential damage.
Why can't you use a Mercalli scale to measure undersea earthquake?
Earthquakescan be measured using the Mercalli Scale, which ranks earthquakes on their effects, such as how they were felt and the damage they caused. Undersea earthquakes can't be measured with this scale because they do not cause this type of damage
How would you describe the Mercalli scale?
== The mercalli scale also known as the Modified Mercalli Intensity (MMI) scale is a measure of the ground shaking from earthquakes. It is based on how people perceive earthquake shaking and/or the damage caused by an earthquake. Modified Mercalli Intensity is measured at individual locations so one earthquake can have many different measures of MMI. MMI is measured on a scale of 1 to 12 (actually Roman numerals) with 1 corresponding to the slightest shaking and 12 reflecting the strongest earthquake. MMI is not the same as earthquake magnitude which is a single measure of the amount of energy released by an earthquake.
What intensity is there considerable damage to poorly built buildings?
An intensity of VII on the Modified Mercalli Intensity scale can cause considerable damage to poorly built buildings. This level of intensity typically leads to partial collapse of structures with a likelihood of extensive damage.
What is the degree to which people feel an earthquake and how much damage it cause called?
The degree to which people feel an earthquake is referred to as its intensity, typically measured using the Modified Mercalli Scale. The amount of damage an earthquake causes is known as its magnitude, often measured using the Richter Scale or moment magnitude scale.
Which is the maximum possible damage designation on the Mercalli scale?
The maximum possible damage designation on the Mercalli scale is X (10), which represents total destruction and is associated with earthquakes that cause nearly all buildings to collapse.
What scale is used to describe the amount of damage an earthquake causes?
The scale used to describe the amount of damage an earthquake causes is the Modified Mercalli Intensity (MMI) scale. This scale measures the intensity of shaking and the resulting damage at a specific location, rather than the earthquake's magnitude, which is measured on the Richter scale. The MMI scale ranges from I (not felt) to XII (total destruction), with each level representing a different degree of impact on structures and people.
How far did the seismic waves from the Haitian earthquake travel?
According to the US Geological survey the Haitian Earthquake had the capacity to cause some minor structural damage to buildings as far away as 300 km from the Earthquakes epicentre (level V or 5 on the Modified Mercalli Intensity scale. It was felt by humans as far away as Guantanamo in Cuba (level III or 3 on the Modified Mercalli Intensity scale) and would most likely have been detected by seismometers all over the world. Please see the related question and link.
What is the highest rating on the Mercalli Scale and what are the symptoms of an earthquake of this intensity?
The Modified Mercalli intensity scale ranges from 1 to 12 (I - XII), with XII being described as cataclysmic. This leads to total destruction of nearly all structures. The ground surface will potentially have permanently changed level by several metres. The ground's surface moves with visible waves or ripples while the earthquake is occurring.
What is used to find the intesity of earthquakes?
Earthquake intensity is measured on a scale called 'Mercalli Intensity Scale' or more recently 'Modified Mercalli Scale'. The scale quantifies the effects of an earthquake on the Earth's surface, humans, objects of nature, and man-made structures on a scale from I (not felt) to XII (total destruction). An earthquake is graded after collecting data from people who have experienced the earthquake and observing the destruction caused by the earthquake. People often confuse 'Intensity' of an earthquake with its 'magnitude.' An earthquake's magnitude is a measure of the energy released by an earthquake that propagates from it. It is measured by the Richter scale(formerly), or Moment Magnitude Scale. Information about the earthquake is put into an algorithm to assign the earthquake to a scale of 2 or less, to 10.0+ and anything in between. A magnitude of 2 or less is extremely weak, and may not have been felt at all. An earthquake with the magnitude of 10 is extremely massive and would cause mass destruction - there have not been any 10.0 earthquakes recorded yet. Magnitude and Intensity are correlated. Intensity depends on the magnitude, distance between focus and surface, and population density of the region etc. So, an earthquake with more magnitude will have more intensity, given all the conditions remain same. See the Related Links section below for the algorithm.
What was the Modified Mercalli scale level for the Chilean earthquake 2010?
According to the US Geological survey, the maximum intensity of the magnitude 9.5 Chilean earthquake of 1960 was rated as XI on the Modified Mercalli Intensity scale which are described as very disastrous or extreme events which are likely to cause significant damage to structures. Please see the related link for details.
