Earthquake: how we can safeguard from it

Safeguard from earthquakes
Safeguard from earthquakes

Earthquake was reported Saturday at 9:38 a.m. Pacific time 10 miles from Hollister, California, according to the U.S. Geological Survey. Magnitude 3.3 hit 13 miles from Soledad, Calif., 14 miles from Salinas, Calif., 16 miles from Prunedale, Calif., and 23 miles from Gilroy, Calif.

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On Friday, A magnitude 6.5 struck near Tonopah state’s strongest quake in over 65 years. An earthquake (also known as a quake, tremor or temblor) is the shaking of the Earth’s surface resulting from a sudden release of energy in the Earth’s lithosphere that creates seismic waves.

Earthquake cause damages
Earthquake cause damages

Earthquake

Earthquakes can range in size from those that are so weak that they cannot felt to those violent enough to propel objects and people into the air and wreak destruction across entire cities. The seismicity, or seismic activity, of an area, is the frequency, type, and size of earthquakes experienced over some time. The word tremor also used for non-earthquake seismic rumbling. In the last ten days, there have been no earthquakes of magnitude 3.0 or greater centered nearby. If you are inside when you feel the ground shake, drop down to the floor.

Before and After

  • Take cover under a sturdy piece of furniture or seek shelter.
  • Avoid danger spots near windows, hanging objects, mirrors, or tall furniture.
  • Hold the position until the ground stops shaking, and it is safe to move.
  • In modern houses and buildings, doorways are no safer, and they do not protect you from flying or falling objects.
  • Get under a table instead.
  • Don’t run outside.
  • If you are outside, get into the open, away from buildings, power lines, and trees.
  • Be alert for falling rock and other debris that could be loosened by the Earthquake.
  • If you are at the beach, move to higher ground as soon as the shaking stops to avoid a possible tsunami.
  • Check your telephone and utilities.
  • Be aware of potential hazards, including downed utility lines, fallen objects, and damaged vents.

The instrumental scales used to describe the size of an earthquake began with the Richter magnitude scale in the 1930. It is a relatively simple measurement of an event’s amplitude, and its use has become minimal in the 21st century. Seismic waves travel through the Earth’s interior and can be recorded by seismometers at great distances. The surface wave magnitude was developed in the 1950 as a means to measure remote earthquakes and to improve the accuracy for larger events. The moment magnitude scale not only measures the amplitude of the shock but also takes into account the seismic moment. The Japan Meteorological Agency seismic intensity scale, the Medvedev–Sponheuer–Karnik scale, and the Mercalli intensity scale are based on the observed effects and are related to the intensity of shaking.