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15. Samoa and Indonesia Undersea Earthquakes

Expedition Menu

1. Introduction

2. Global Distribution

3.  Earthquakes & Plate Boundaries

4. The Ring of Fire

5. Convergent Boundaries

6. Atlantic Ocean

7. Atlantic Ocean II

8. Alaska Earthquake

9. Vertical Slice

10. 3-D Look

11. California Plate Boundaries

12. Mendocino Triple Junction

13. Could it Happen Here?

Map Indonesia and Samoa

Samoa Map

 

Modified from PBS News Hour Report

 

Indonesai earthquake location

Graphics from USGS National Earthquake Information Center
Orange Star indicates location of epicenter of Samoa earthquake, purple line marks location of Tonga trench of the convergent plate boundary, and various colored dots represent epicenters (surface projections) of deep earthquakes that compose the Wadati-Benioff zone, marking the westward subducting Pacific plate under the Tonga Islands.
Green Star indicates location of epicenter of Indonesia earthquake, purple line marks location of Java trench of the convergent plate boundary, and various colored dots represent epicenters (surface projections) of deep earthquakes that compose the Wadati-Benioff zone, marking the eastward subducting Indian-Australian plate under the Sumatra (western Indonesia).


Sunday, October 4, 2009 - Associated Press = The death toll rose to 170, including 129 in Samoa, 32 in the nearby U.S. territory of American Samoa and nine in Tonga.

Tuesday, October 6, 2009 - Peter Gelling, New York Times - The Indonesian government said on Monday, October 6, that more than 600 people were confirmed killed from the 7.6-magnitude earthquake, which struck the western Indonesian island of Sumatra last Wednesday evening, with about 1,000 still missing. Other estimates put the numbers of dead and missing higher, including that of the United Nations, which has estimated about 1,100 dead.
It was unclear precisely how many people were without shelter Monday, but more than 88,000 houses and 285 schools were flattened in the 10 affected districts, according to the U.N. and Indonesia's Disaster Management Agency. Another 100,000 public buildings were damaged.

 


Contact Don Reed
Dept. of Geology
San José State University
©Copyright 2007
Last Updated on
September 24, 2007


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