That would be a "kind of strong" earthquake but 8+ is huge.
Richter scales are used to measure the magnitude of an earthquake. There is no specific unit used for earthquakes. I hope this helps. =)
Magnitude is a term used to describe how much energy was released by an earthquake. It gives an indication of the amplitude of the seismic waves that occur and also on the length of the fault rupture zone and the displacement along the fault. A magnitude 7 earthquake is defined by the US Geological Survey as a "major" earthquake. In general earthquake over a magnitude of 4 or 5 can cause damage although the exact reasons why some earthquake are more damaging than others is more complext than just the absolute magnitdue of the earthquake. For more information on this, see the related question.
Richter or local magnitude scaleMoment magnitude scaleBonus:Surface magnitude scale
a Richter scale
Scientists measure the magnitude (energy) of an earthquake using a seismograph (sort of sensitive pendulum that records the shaking of the earth).
The term magnitude is used to describe the size of an earthquake.
Magnitude.
The moment magnitude scale has replaced the Richter Scale.
Depends on it's magnitude which can range. Seisometers are used to measure the Magnitude of an earthquake. Magnitude is it's strength.
The word Magnitude is used to described the amount of energy released when an Earthquake occurs
The instrument that is used to measure the magnitude of an earthquake is a seismometer.
The Seismograph is used to measure the Magnitude of an earthquake.
The magnitude of an earthquake is a number used to quantify how much energy was released during the earthquake. The earthquake in Japan that occurred on Friday, March 10, 2011, had a moment magnitude of 8.9.
Richter Magnitude
The Richter magnitude scale is used to measure the strength of an earthquake.
Richter scales are used to measure the magnitude of an earthquake. There is no specific unit used for earthquakes. I hope this helps. =)
The strongest earthquake that can be measured using the Richter magnitude scale is one with a magnitude of 8.0. For earthquakes larger than this, the moment magnitude scale must be used.