Saudi Gazette/Okaz report that Saudi geologists are becoming increasingly concerned about the seismic activity in the Al-Ais region of the country. According to this story, magma has moved from 8 km below the surface to 4 km, indicating a dangerous situation. The violence of accompanying earthquakes is increasing as well.

It is impossible, of course, to tell what will happen. Predictions about volcanic activity are very rough and become rougher the longer the time between eruptions. It’s possible that things will just quiet down and go back to as they were. It’s equally possible, though, that the activity will continue and a volcano will erupt in Saudi Arabia’s northwest. One marginally good thing is that the immediate area is not heavily populated: villages can reasonably be evacuated.

Saudi volcanoes, though, are of a particular type. Rather than the thick, sticky lava produced by volcanoes like Vesuvius or Mt. Saint Helen’s, they produce very fluid lava, more along the lines of that seen at Mauna Loa. These produce masses of lava that quickly flow over wide expanses. Look at any of the satellite photos of western Saudi Arabia and you can readily see the black lava fields spread over vast areas of the country.

Tremors continue to shake Al-Eis region
Muhammad Talib Al-Ahmadi
MADINA – Successive tremors hit Harrat Ash-Shaqqah in Al-Eis region late Tuesday and continued until Wednesday morning. Residents of Hadmah, Al-Qarrassah, Al-Maramiyah, Milh, Massadir, Al-Qassabah, Al-Nuwaissifah, As-Souq Al-Qadeem and Al-’Uyaynah villages felt the tremors which registered 3.9 on the Richter scale. The intensity of the tremors was the strongest since the beginning of the seismic activity in the region last week.

Saleh Al-Muhawis, Director General of the Civil Defense in Madina Region, said magma (molten rocks below the surface) was pushed by some force from a de pth of 8 km to a depth of 4 km below the surface.

This, according to geologists, is considered a dangerous indication. Al-Muhawis said geologists are of the view that if the force can push the molten rocks to 4 km below the surface, it can push it a further 4 km towards the surface resulting in an explosion and a volcanic eruption.


May:14:2009 - 06:01 | Comments & Trackbacks (2) | Permalink
2 Responses to “Magma Moving in Saudi Volcanoes”
  1. 1
    RAJESH KUMAR Said:
    May:21:2009 - 07:14 

    May 21

    Dear sir,

    I got the news from my brother, whos is in Oman.
    He asked me, whether we here in Dammam are safe ?
    Never we got any information from media. Even the Mobile Phone Operators did not give any such information or Caution. As we are in Contracting Business, Our people have to travel extensively through out Saudi Arabia.What do you think, is it necessary to give a Caution to all the Residents regarding any kind of Casualities like this? Expecting your comment. regards
    Rajesh

  2. 2
    John Burgess Said:
    May:21:2009 - 16:01 

    If you’re not safe in Dammam, your brother is equally unsafe in Oman!

    The activity is taking place on exactly the other side of Saudi Arabia, nearly 1,000km away from Dammam.

    Saudi Civil Defense seems to be very much on top of this. They are preventing people from traveling on the roads to the affected area, which has been evacuated. Now, media report that some people are ignoring the roadblocks and going around them. That’s on their heads, I think.

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