Wednesday 17 June 2020

Magnitude 5.4 Earthquake beneath the northern Red Sea.

The United States Geological Survey recorded a Magnitude 5.4 Earthquake at a depth of 10.0 km beneath the northen Red Sea, roughly 77 km to the southeast if the Egyptian resort of Sharm el-Sheikh at about 4.30 pm local time (about 2.30 pm GMT) on Tuesday 16 June 2020. There are no reports of any serious damage or injuries from this quake, but it was felt in Egypt and SAaudi Arabia.

The approximate location of the 16 June 2020 Red Sea Earthquake. USGS.

The Red Sea, while referred to as a sea, is technically an immature ocean, underlain by the Red Sea Rift, a spreading boundary between two tectonic plates, the African Plate and the Arabian, where new oceanic crust is being formed. Arabia was formerly part of the African Plate, but split away about 30 million years ago. The Great Rift Valley of Africa is a continuation of this rift, that is slowly splitting Africa in two from the north to the south. This rifting exerts pressure on the rocks around the margin of the sea, slowly pushing them apart, not smoothly but in fits and starts as the pressure overcomes the tendency of the rocks to stick together. 

The relative movements of the African and Arabian Plates. School of Earth and Environment/University of Leeds.

Witness accounts of Earthquakes can help geologists to understand these events, and the structures that cause them. The international non-profit organisation Earthquake Report is interested in hearing from people who may have felt this event; if you felt this quake then you can report it to Earthquake Report here.

See also...

https://sciencythoughts.blogspot.com/2020/04/magnitude-47-earthquake-off-coast-of.htmlhttps://sciencythoughts.blogspot.com/2019/10/iranian-oil-tanker-leaking-oil-into-red.html
https://sciencythoughts.blogspot.com/2018/08/tourist-killed-by-shark-on-red-sea.htmlhttps://sciencythoughts.blogspot.com/2017/04/pair-of-earthquakes-off-coast-of.html
https://sciencythoughts.blogspot.com/2017/04/pair-of-earthquakes-off-coast-of.htmlhttps://sciencythoughts.blogspot.com/2017/03/pirates-release-oil-tanker-seized-off.html
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