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What is the highest rating on the Mercalli Scale and what are the symptoms of an earthquake of this intensity?
Wiki User
∙ 13y ago
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.
Wiki User
∙ 13y ago
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What is the highest prehistoric earthquake?
the highest earthquake is near Disneyland Paris
Has there ever been a 12.5 earthquake?
No, the highest ever recorded earthquake registered at 9.5
What area would be the safest during an earthquake?
the safest place during an earthquake is probably in the highest place you can be
What is the highest ranked magnitude of an earthquake in the US?
There was a 9.2 magnitude earthquake in Prince William Sound, Alaska in 1964.
What fault line has the highest probability of producing an earthquake?
Parkfield has the highest probability because it has 90% (Paper: Earthquake Probability Section 2-4)
What is the highest rating on the Mercalli scale and what are the symptoms of an earthquake of this magnitude?
Maby you should find the answer on anothr website.
What is the highest intensity on the Modified Mercalli Intensity Scale?
11
What is the highest intensity level on the modified mercalli intensity scale?
11
Is it true that an intensity- XII earthquake would cause a little destruction?
No, this earthquake is rated highest on the mercalli scale and thus would cause huge amounts of destruction
How does the modified mercalli scale earthquake intensity?
The Modified Mercalli scale assigns a value to an earthquake from I to XII depending on it's intensity, with I being the lowest (only recorded by seismometers, not felt by humans) and XII being the highest (representing total destruction of all buildings). Mercalli values are derived from a number of sources including witness reports of the perceived ground shaking in their location, the damage to structures and also measurements of the ground accelerations from seismometers (included to attempt to reduce the subjectivity of the scale due to it's reliance on human witnesses).
Where are intensity values of an earthquake usually highest?
The epicenter
Where did the Haitian earthquake hit the hardest?
The US Geological Survey provide a contour map of earthquake intensity for the earthquake that occurred on the 12th of January, 2010. This indicates that the highest intensity (perceived shaking) with a level of 10 (X) on the Modified Mercalli Intensity Scale occurred in Grand Goave (population 5000). The Haitian capital Port-au-Prince suffered an intensity 9 event. The scale indicates that at this intensity structures will suffer heavy to very heavy damage. Please see the related links and question.
What is the rossi-forel intensity scale?
an arbitrary numerical scale of intensity of seismic disturbances ranging from one for a barely perceptible tremor to 10 for an earthquake of the highest intensityThe Rossi-Forel scale was one of the first seismic scales to reflect earthquake intensities. Developed by Michele Stefano Conte de Rossiof Italy and François-Alphonse Forel of Switzerland in the late 19th century, it was used for about two decades until the introduction of the Mercalli intensity scale in 1902.
Why might an earth quake have more than one intensity value?
Yes. The Mercalli intensity scale measures the effect of the earthquake on people and structures, and the intensity value will differ depending on how far you are from the epicenter. For instance, a 5.5 magnitude earthquake may be damaging (intensity VII) around the epicenter, but 300 miles away it may be barely felt (intensity II). The mercalli scale measures the intensity of an earthquake, where the Richter scale measures the magnitude. Also you have to consider where the earthquake occurred. you can have a 9.0 quake in the middle of the Australian outback but there is hardly anybody there so you would have a low mercalli scale reading. If you had that same quake in San Francisco then you are going to have a seriously high number on the mercalli scale
What is a scale that rates an earthquake?
The highest intensity rating is 12 on the Modified Mercalli scale. There is no upper limit for magnitude scales (such as the Moment and Richter magnitude scales) although in practical terms no earthquake larger than magnitude 9.5 has ever been recorded by humans.
What do the numbers on the earthquakes like a 1.2 mean?
That means the intensity of the earthquake. 0 being the lowest and 10.0 being the highest
What is the highest rating on the mercalli scale?
category 12 - catestrophic
