The most powerful typhoon of the 2013 season approached the northern Philippines and southern Taiwan on Friday (Sept. 20) with wind reaching 300 kph (184 mph) and torrential rain. The death toll now stands at 475 and is expected to increase dramatically in the days to come. Usagi has a diameter of 1,100 kilometers (660 miles), with outer rain bands extending across the main northern Philippine island of Luzon and southern Taiwan. Forecasters predict 24-hour rainfall accumulation of 500 millimeters (nearly 20 inches) near its center. Presentation courtesy of Dr Walter Hays, Global Alliance for Disaster Reduction

1. USAGI: WIND AND WATER
DAMAGE

2. SUPER TYPHOON USAGI
Headed Towards The Philippines,
Taiwan, and China
September 20, 2013

3. The most powerful typhoon of the
2013 season approached the
northern Philippines and southern
Taiwan on Friday (Sept. 20) with
wind reaching 300 kph (184 mph)
and torrential rain
TSUNAMI ROUND
TABLE

4. SUPER TYPHOON USAGI
NEAR THE PHILIPPINES

5. POTENTIAL DISASTER
AGENTS OF USAGI
• Usagi has a diameter of 1,100 kilometers
(660 miles), with outer rain bands
extending across the main northern
Philippine island of Luzon and southern
Taiwan.
• Forecasters predict 24-hour rainfall
accumulation of 500 millimeters (nearly
20 inches) near its center.

6. WIND AND WATER PENETRATE
BUILDING ENVELOPE
SEVERE
WINDSTORMS
SEVERE
WINDSTORMS
UPLIFT OF ROOF SYSTEM
FLYING DEBRIS PENETRATES
WINDOWS
STORM SURGE AND HEAVY
PRECIPITATION
IRREGULARITIES IN
ELEVATION AND PLAN
POOR WORKMANSHIP
IGNORING NON-STRUCTURAL
ELEMENTS
CAUSES OF
RISK
CAUSES OF
RISK
CASE HISTORIESCASE HISTORIES

7. ANTICIPATORY ACTIONS: THE
PHILIPPINES
• In the Philippines, the Batanes Islands
are under the highest storm alert
• Government officials warned of flash
floods, landslides and storm surge in
15 northern provinces.

8. ANTICIPATORY ACTIONS: TAIWAN
• In Taiwan, hundreds of people are
being evacuated from flood-prone
areas near cities and in remote
mountainous regions

9. ANTICIPATORY ACTIONS: CHINA
• The Guangdong-Hong Kong coastline
of China is preparing for Usagi’s
arrival on Sunday as a weakened
storm with maximum sustained winds
of 158 kph (98 mp).

10. BENEFIT/COST OF BECOMING
TYPHOON DISASTER RESILIENT
PREPAREDNESS,
PROTECTION, EARLY
WARNING, EM.
RESPONSE, AND
RECOVERY
BUILDS RESILIENCE
1 < BENEFIT/COST <
1,000

11. Impacts in The
Philippines
Sept. 20-21
AT LEAST 475 DEAD; MANY
HOMELESS

12. USAGI: WIND AND WATER
DAMAGE

13. USAGI: MUDSLIDES

14. USAGI: WIND DAMAGE

15. USAGI: WIND DAMAGE

16. USAGI: LAST MINUTE
EVACUATIONS

17. USAGI: FLOODING

18. USAGI: A RESCUE