भिडियो हेर्न तलको बक्स भित्र क्लिक गर्नुहोस
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The US Geographical Survey said the quake struck 105 miles north-east of Gisborne at a depth of 19.1 miles at around 4:37 am local time.A spokesman for New Zealand's Civil Defence department said: "There is a potential tsunami threat for New Zealand following the earthquake. "People in coastal areas should stay out of the water. Stay off beaches and shore. "The National Oceanic and Atmospheric Administration has already reported" small tsunami waves "had been observed after the quake.Terrified residents reported being woken up as buildings volently shook for minutes.Chris Rawson wrote:" That was one hell of an earthquake just now. Might be the longest one I've ever been in. Whole house shook for at least a minute. "
Earthquakes are measured using observations from seismometers. The moment magnitude is the most common scale on which earthquakes larger than approximately 5 are reported for the entire globe. The more numerous earthquakes smaller than magnitude 5 reported by national seismological observatories are measured mostly on the local magnitude scale, also referred to as the Richter magnitude scale. These two scales are numerically similar over their range of validity. Magnitude 3 or lower earthquakes are mostly imperceptible or weak and magnitude 7 and over potentially cause serious damage over larger areas, depending on their depth. The largest earthquakes in historic times have been of magnitude slightly over 9, although there is no limit to the possible magnitude. Intensity of shaking is measured on the modified Mercalli scale. The shallower an earthquake, the more damage to structures it causes, all else being equal.
भिडियो हेर्न तलको बक्स भित्र क्लिक गर्नुहोस
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