EARTHQUAKE
EARTHQUAKE An earthquake is a vibration or shock that occurs in the earth's surface due to the release of energy from the sudden that creates seismic waves. Earthquakes are caused by movement of ordinary Earth's crust (plates of Earth). Frequency region, referring to the type and size of earthquakes experienced over that time period. Earthquakes are measured using tools Seismometer.Moment magnitude is the most common scale on which earthquakes occur is for the whole dunia.Skala Rickter scale reported by national seismological observatories are measured on a scale of local magnitude 5 magnitude. The second scale is the same for their valid ranges. 3 earthquakes of magnitude or more most of the almost invisible and its large 7 over potentially cause serious damage over large areas, depending on the depth of the earthquake. Earthquake of historic magnitude has the largest over 9, although there is no limit magnitude. The last major earthquake magnitude 9.0 or greater is a 9.0 m...