An intensity 5 earthquake is felt by a few number of people outdoors while an intensity 7 earthquake is felt generally by people outdoors
There are many factors. One would be the distance a person is from the epicenter. A person who is further from a magnitude 7 earthquake would be less affected by the shockwaves than a person nearer to the epicenter of a magnitude 6 earthquake. The place the person is in at the time of the earthquake also may affect the intensity of what he feels. If one is in a tall and stable building during an earthquake, he would not feel the vibrations as much as one standing on the streets. The scale measuring the intensity of earthquakes should be considered too. A Mercalli Intensity Scale measuring magnitude 6 may possibly be more powerful than a Richter Scale measuring a magnitude 7, as more damage is caused.
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The Richter magniude scale is logorithmic. As such the size (amplitude) of the largest seismic waves produced by a magnitude 7 earthquake are 102 (or 100) times larger than those produced by a magnitude 5 earthquake. However the amount of energy released by a magnitude7 earthquake is 1000 times greater (102)^3/2 than a magnitude 5 earthquake and so it is likely to be much more destructive.
The strongest earthquake in the United Kingdom was on June 7, 1931 and the epicenter was in Dogger Bank. The earthquake was then named Dogger Bank earthquake 1931.
The Richter Scale is a Magnitude scale - it is used to calculate the magnitude of small and medium sized earthquakes (those with a magnitude less than 7). The other scales most commonly used for recording Earthquakes are the Moment Magnitude Scale and the Modified Mercalli Intensity Scale.The Intensity scale of the Earthquake measures the effect of the earthquake at a particular location. In general it is highest at the epicenter and gets lower as you go further. The value of intensity changes from place to place.The Moment Magnitude scale measures the actual amount of energy released during the Earthquake and is derived based on the rigidity / stiffness of the crust, the length of fault that slipped and it's cross sectional area.An Earthquake has only one value of magnitude, and it does not change from place to place. The scale is logarithmic.However the now outmoded Richter Scale used a different method of deriving the energy release based on the maximum amplitude of the seismic waves detected on seismometers. As such it was a measurement of the local magnitude (i.e. local to the seismometer) rather than the absolute magnitude of the earthquake.
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There are many factors. One would be the distance a person is from the epicenter. A person who is further from a magnitude 7 earthquake would be less affected by the shockwaves than a person nearer to the epicenter of a magnitude 6 earthquake. The place the person is in at the time of the earthquake also may affect the intensity of what he feels. If one is in a tall and stable building during an earthquake, he would not feel the vibrations as much as one standing on the streets. The scale measuring the intensity of earthquakes should be considered too. A Mercalli Intensity Scale measuring magnitude 6 may possibly be more powerful than a Richter Scale measuring a magnitude 7, as more damage is caused.
Modern geologists estimate that the 1755 earthquake reached 9 points in the Richter scale (the Haiti earthquake was 7 points). The earthquake was followed by a massive tsunami of 5 meters (15ft) high, and several fires that destroyed Lisbon almost to the ground. check related links for more information.
Comedy Central Presents - 1998 Earthquake 7-5 was released on: USA: 7 March 2003
That would be a "kind of strong" earthquake but 8+ is huge.
On December 5, 2014 there was an earthquake approximately 7 miles west-southwest of Hollister. The magnitude was 3.9.
2 and 7 is the only such pair.
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The Richter magniude scale is logorithmic. As such the size (amplitude) of the largest seismic waves produced by a magnitude 7 earthquake are 102 (or 100) times larger than those produced by a magnitude 5 earthquake. However the amount of energy released by a magnitude7 earthquake is 1000 times greater (102)^3/2 than a magnitude 5 earthquake and so it is likely to be much more destructive.
The ISBN of Intensity - novel - is 0-553-58291-7.
The U.S. Geological Survey (USGS) Earthquake Center said the March 11, 2011 magnitude 9.0 earthquake (originally reported as 8.9) was the "biggest quake to hit Japan since record-keeping began in the late 1800s and one of the biggest ever recorded in the world".The official name of the March 2011 Earthquake in Japan is the Tōhoku earthquake, which affected the Tōhoku region and neighboring regions including Fukushima.UPDATE: Official magnitude was updated to 9.1 on Nov 7, 2016Related links:USGS Tōhoku earthquake official record
There are infinitely many twin primes. One example is 5 and 7.