The magnitude of an earthquake is measured with a seismograph and the readout is measured using the Richter scale - See Sources and related links for more information.
The biggest earthquake measured 9.5 on the ritcher scale.
The size of an earthquake is measured on the Ricter scale it can also be measured on the Mercalli scale.For an example the 2008 earthquake in China was 7.8 on the Rictor scale and in was XI on the Mercalli scale
you need to know what size was the wave that caused the destruction and for reasons of statistics. you have a wave size and you get an earthquake wich epicenter is in the sea, you know what size of wave to spect in the coast and the time to evaquate.
Tsunami
it depends on the earthquake
Napier experienced a devastating earthquake in 1931, which caused widespread destruction and loss of life. The earthquake measured 7.8 on the Richter scale and caused significant damage to buildings and infrastructure in the area.
Earthquakes release energy in the form of seismic waves, which travel outward from the earthquake source. These waves cause the ground to shake and can lead to destruction and damage to buildings and infrastructure. The amount of energy released by an earthquake is measured on the Richter scale.
The magnitude of an earthquake is measured with a seismograph and the readout is measured using the Richter scale - See Sources and related links for more information.
the weather during the day of the earthquake
epicenter
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.
The magnitude of the Haiti earthquake that occurred on January 12, 2010, was measured at a magnitude of 7.0 on the Richter scale. This earthquake caused significant destruction and loss of life in Haiti's capital city, Port-au-Prince, and the surrounding areas.
The Haiti Earthquake measured about 7 on the Richter Scale.
The biggest earthquake measured 9.5 on the ritcher scale.
The size of an earthquake is measured on the Ricter scale it can also be measured on the Mercalli scale.For an example the 2008 earthquake in China was 7.8 on the Rictor scale and in was XI on the Mercalli scale
Destruction Terror Death...