3. TSUNAMI WAVES
Caused by Earthquakes under Ocean, or other events
– landslides, volcanic eruptions, asteroid impacts, etc.
In Deep Ocean the Tsunami Wave is
only about 3 feet high but 100 miles wide
and moving at speed of a jet airplane.
4.
5. Alfred Wegner observed that South America and Africa
continents fit like a gig saw puzzle
Proposed Continental Drift of Plates (Plate Tectonics) and that 200 million
Years ago a super continent of Pangaea existed.
6.
7. SEA FLOOR SPREADING
Occurs along the Mid-
Atlantic Ridge pushing the
African and European
Plates away from the North
and South American
Plates at about 1 inch/year
This then pushes the
Pacific Ocean floor under
the Plates on the opposite
side of America Plates and
Euroasian and Africa
Plates
8.
9. Conclusions
The Tsunami caused by the Sumatra EQ killed
>300,000 people because there was no
Warning System.
Source region for Sumatra Tsunami extends
from Banda Aceh through the Nicobar Islands.
We need a method for estimating size of great
earthquakes within a time frame useful to the
Tsunami Warning System.
