TITLE:
Assessment of Main Parameters of Extreme Earthquakes in Red Sea, West Coast of Saudi Arabia
AUTHORS:
Said Ali El- Quliti, Tawfiq Bin Saeed Al- Harbi, Mahdi Bin Salem Al- Yami, Ahmed Bin Matar Al- Ghamdi, Mohammed Bin Mattar Al- Shammari
KEYWORDS:
Red Sea, Earthquakes, Assessment, Saudi Arabia
JOURNAL NAME:
Open Journal of Earthquake Research,
Vol.5 No.2,
May
31,
2016
ABSTRACT: The negative effects of natural disasters on human life exist from the foot and did not occur at a specific
time but found since the creation of mankind. Humans coexist with extreme events all the time,
only when the intensity of the event becomes greater than a certain level there is a resulting disaster.
Small earthquakes occur all of the time with no adverse effects. Only large earthquakes cause disasters.
Statistical analysis reveals that larger events occur less frequently than small events. Through
the large number of seismic events, we find that at the end of the year may have a series of seismic
events with different values depending on the strength of activity whether it is high or low on Richter
scale and the assessment is only for the greatest value in a year even if recurring this value and
the volume of dangerous increases and the frequency of their occurrence according to an ongoing
activity, major disasters result from a small number of events and sustained results in a large and
devastating event, and can be represented by these results and amounts On a log-scale which points
are almost on a straight line and a clear indication of the evaluation event. Through previous data
analysis we can understand the following events behavior for coordination and guidance on the development
of evacuation plans on the expected future and use a Weibull equation to estimate the
frequency of the event and the return again as a percentage for each event and the probability of the
occurrence of a particular earthquake to some degree on the Richter scale in the sea during any period.
Past records of earthquakes at the West Coast of the Kingdom of Saudi Arabia (Red Sea) for
years 1913-2016 are used to predict future conditions concerning the annual frequency, the return
period, the percentage probability for each event, and the probability of a certain-magnitude
earthquake occurring in the region during any period.