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| QUAKES & TSUNAMI DANGER ZONE: ARABIAN SEA
Erle Frayne D. Argonza
Earth quake of magnitude 9.2 on Reichter! Tsunami that could result to hundreds of thousands of dead bodies!
Such are the possible outcomes of the geological reality surrounding the Arabian sea, a heretofore unexpected reality of previous studies that were largely flawed. New modeling of quake & tsunami forecasting for the Arabian sea, with focus on the Makran rupture zone, indicate a gigantic magnitude quake that could occur in the zone any time soon.
A big quake in the zone could easily heap up tsunami that could threaten the coasts of Pakistan, Oman, India, Iran, and further. As seismology and geological updates indicated, seismic activities have been occurring in the zone in more recent times, activities that were largely absent previously.
Below is a reportage from the scidev.net about the subject matter.
[Manila, 26 June 2013]
Source: http://www.scidev.net/en/agriculture-and-e...d-tsunamis.html Arabian Sea at high risk of quakes and tsunamis Dilrukshi Handunnetti 17 June 2013 | EN [COLOMBO, SRI LANKA] Countries surrounding the Arabian Sea may be at a much higher risk of a major earthquake and tsunami than previously thought, say researchers.
A tsunami in this area of the Western Indian Ocean could threaten the coastlines of India, Iran, Oman, Pakistan and further afield. The scientists say further investigation should feed into hazard assessments and planning for such events in the region.
The Makran subduction zone, which lies along the southwestern coast of Pakistan, has low levels of seismic activity, so people assumed it was incapable of generating major earthquakes. • New modelling shows the Makran rupture zone is longer and wider than previously thought • This makes it capable of earthquakes of up to 9.2 magnitude • Previous risk assessments for the Arabian Sea have underestimated risk: more research is needed But a new analysis published recently in Geophysical Research Letters (30 April) used thermal modelling to show that the rupture zone may be longer and wider than previously thought. This, in combination with thick sediments on the plate being pushed under, makes an earthquake more likely.
The models indicate that earthquakes similar in magnitude to the earthquake in Sumatra, Indonesia, in 2004 that triggered a tsunami, killing more than 230,000 people, could occur in the region.
"Past assumptions may have significantly underestimated the earthquake and tsunami hazard in this region," says the study's lead author, Gemma Smith, who is based at the University of Southampton in the United Kingdom.
The Makran subduction zone has previously recorded an earthquake in 1945 of 8.1 magnit...Read the whole post...
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