Global & Disaster Medicine

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Tsunami evacuation buildings (TEBs): Indonesia preparing for the next tsunami

http://www.wmpllc.org/ojs-2.4.2/index.php/jem/article/view/562

TEBs: Document

Tsunami evacuation buildings and evacuation planning in Banda Aceh, Indonesia

Hendri Yuzal, MURP, Karl Kim, PhD, Pradip Pant, PhD, Eric Yamashita, MURP
Journal of Emergency Management

Abstract

Indonesia, a country of more than 17,000 islands, is exposed to many hazards. A magnitude 9.1 earthquake struck off the coast of Sumatra, Indonesia, on December 26, 2004. It triggered a series of tsunami waves that spread across the Indian Ocean causing damage in 11 countries. Banda Aceh, the capital city of Aceh Province, was among the most damaged. More than 31,000 people were killed. At the time, there were no early warning systems nor evacuation buildings that could provide safe refuge for residents. Since then, four tsunami evacuation buildings (TEBs) have been constructed in the Meuraxa subdistrict of Banda Aceh. Based on analysis of evacuation routes and travel times, the capacity of existing TEBs is examined. Existing TEBs would not be able to shelter all of the at-risk population. In this study, additional buildings and locations for TEBs are proposed and residents are assigned to the closest TEBs. While TEBs may be part of a larger system of tsunami mitigation efforts, other strategies and approaches need to be considered. In addition to TEBs, robust detection, warning and alert systems, land use planning, training, exercises, and other preparedness strategies are essential to tsunami risk reduction.


M 7.9 – 41km WNW of Panguna, Papua New Guinea

ShakeMap Intensity image

WEAK53 PAAQ 220440
TIBAK1

Tsunami Information Statement Number 1
NWS National Tsunami Warning Center Palmer AK
840 PM PST Sat Jan 21 2017

…THIS IS A TSUNAMI INFORMATION STATEMENT FOR ALASKA, BRITISH
COLUMBIA, WASHINGTON, OREGON AND CALIFORNIA…

EVALUATION
———-
* There is no tsunami danger for the areas listed above.

* Based on the depth of the earthquake a tsunami
is not expected.

* An earthquake has occurred with parameters listed below.

PRELIMINARY EARTHQUAKE PARAMETERS
———————————
* The following parameters are based on a rapid preliminary
assessment and changes may occur.

* Magnitude      8.0
* Origin Time    1930 AKST Jan 21 2017
2030  PST Jan 21 2017
0430  UTC Jan 22 2017
* Coordinates    6.1 South 155.2 East
* Depth          104 miles
* Location       near the Solomon Islands

ADDITIONAL INFORMATION AND NEXT UPDATE
————————————–
* Refer to the internet site ntwc.arh.noaa.gov for
additional information.

* Pacific coastal regions outside California, Oregon,
Washington, British Columbia and Alaska should refer to the
Pacific Tsunami Warning Center messages at ptwc.weather.gov.

* This will be the only U.S. National Tsunami Warning center
message for this event unless additional information becomes
available.

$$

 

 


Japan’s tsunami warning system

The Verge

“….it took about half an hour for the waves to reach the shoreline. A three-foot tsunami hit the coast of Soma, 185 miles up the coast from Tokyo, a little more than an hour after the temblor, and another 4.6-foot tsunami washed ashore at Sendai, another 40 miles north, an hour later. This was the largest tsunami in that region since the 30-foot tsunami of 2011……

As of 7:39AM local time, there were 150 people at 5 evacuation centers…… Five minor injuries have been reported. The cooling equipment for a reactor at the No. 2 power plant at Fukushima, Fukushima Daini stopped working, but resumed functioning at 7:47AM local time…… (Fukushima Daini is not the plant that caused a nuclear disaster after being damaged by the 2011 quake and tsunami…..”


A powerful 7.8-magnitude earthquake has jolted New Zealand’s South Island and triggered a tsunami.

ShakeMap Intensity image


** All 22 early warning tsunami buoys placed in Indonesian waters following the 2004 tsunami no longer work because of theft and vandalism.

Bloomberg

 

**  “……Indonesia’s 17,000 islands are especially prone to earthquakes because the country straddles the Ring of Fire, an arc of fault lines and volcanoes that causes frequent seismic upheavals. At least 160,000 people were killed on Sumatra Island as a result of the 9.1 magnitude earthquake and subsequent tsunami on Boxing Day in 2004…..”

DART Buoys


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