yes they are
False. The magnitude of earthquakes is rated on the Richter scale, not the vibration caused by the earthquake. The Richter scale measures the energy released by an earthquake at its source.
An earthquake that was rated 3 on the Richter scale would beignored
8.9/10
An earthquake rated 2 on the Richter scale is considered a micro earthquake, which is typically not felt by people and usually does not cause any damage. These low-magnitude earthquakes are often only detected by seismographs. While they can occur frequently in some areas, they generally have little to no impact on daily life.
Each number on the Richter scale is TEN TIMES stronger than the lower number. Therefore - in this case, a strength 4 quake is 100 times stronger than a strength 2.
The Richter or local magnitude scale of the Haitian earthquake has been reported as 7.2. and the Moment magnitude as 7.0 (according to the U.S. Geological Survey, National Earthquake Information Center).Please see the related questions for further information about the Haitian earthquake and it's magnitude and severity.7.0 magnitutes
The Kobe earthquake in 1995 had a magnitude of 6.9 on the Richter scale. It caused widespread devastation in the region, resulting in thousands of deaths and significant damage to buildings and infrastructure.
Hurricanes are not rated on the Richter scale; earthquakes are. Hurricane Isaac was rated a category 1 on the Saffir-Simpson scale.
Earthquake magnitudes are rated using the moment magnitude scale. Moderate and small earthquakes (those with a magnitude below 7) are also measured using the Richter scale. Please see the related question for more information.
Two earthquakes higher than 8.9 on the Richter scale have been recorded. They are the Anchorage, Alaska, earthquake of 1964 which was rated as 9.2 and the Valdivia, Chile, earthquake of 1960 at 9.5.
The Richter scale is used to rate the magnitude of an earthquake -- the amount of energy it released. This is calculated using information gathered by a seismograph.Richter ratings only give you a rough idea of the actual impact of an earthquake, though. As we've seen, an earthquake's destructive power varies depending on the composition of the ground in an area and the design and placement of man-made structures. The extent of damage is rated on the Mercalli scale. Mercalli ratings, which are given as Roman numerals, are based on largely subjective interpretations
Hurricane Katrina was a Category 5 hurricane when it made landfall in the United States on August 29, 2005. The Saffir-Simpson Hurricane Wind Scale is used to categorize hurricanes based on their sustained wind speeds, not the Richter scale which measures earthquake magnitudes.