The Chaparrastique volcano, which is located in the San Miguel municipality about 140 km (87 miles) east of San Salvador, the capital, spewed ash over a wide area known for its coffee plantations. After erupting 26 times in the last 500 years, Chaparrastique is considered the most active of El Salvador’s 23 active volcanoes. THE KEYS TO RESILIENCE and recovery from volcanic disasters: 1) know the eruptive history of your region’s volcanoes; 2) be prepared; 3) have a warning system; 4) evacuate; 5) learn from the experience and start over
6. The Chaparrastique
volcano, which is located in
the San Miguel municipality
about 140 km (87 miles) east
of San Salvador, the capital,
spewed ash over a wide
area known for its coffee
plantations.
7. The dense column of gas and
ash rose more than 5,000
meters (3 miles) into the air,
and debris was spread in a
radius of 10 kilometers
(6 miles) from the volcano,
8. INITIAL IMPACTS
• No immediate reports of casualties
or injuries.
• Officials warned that wind could
carry smoke and ash from the
Chaparrastique to Tegucigalpa, the
capital of neighboring Honduras.
• Flights to and from El Salvador
were cancelled on Sunday.
9. After erupting 26 times in the
last 500 years, Chaparrastique
is considered the most active
of El Salvador’s 23 active
volcanoes.
15. VOLCANO HAZARDS
CAN HAVE FAR REACHING IMPACTS
• VERTICAL ASJ PLUME (can
affect jet aircraft)
• TEPHRA
• LATERAL BLAST
• PYROCLASTIC CLOUDS,
BURSTS, AND FLOWS
16. VOLCANO HAZARDS
CAN HAVE FAR REACHING IMPACTS
• LAVA FLOWS
• LAHARS (can bury villages)
• EARTHQUAKES (related to
movement of lava)
• “VOLCANIC WINTER” (causing
famine and mass extinctions)
17. CAUSES OF
CAUSES OF
RISK
RISK
LATERAL BLAST
PYROCLASTIC FLOWS
FLYING DEBRIS
VOLCANIC
VOLCANIC
ERUPTIONS
ERUPTIONS
CASE HISTORIES
CASE HISTORIES
VOLCANIC ASH
LAVA FLOWS
LAHARS
TOXIC GASES
18. VOLCANO RISK
•VOLCANO HAZARDS
•PEOPLE & BLDGS.
•VULNERABILITY
•LOCATION
DATA BASES
AND INFORMATION
ACCEPTABLE RISK
RISK
UNACCEPTABLE RISK
INDONESIA’S
GOAL: VOLCANO
DISASTER RESILIENCE
COMMUNITIES
POLICY OPTIONS
HAZARDS:
GROUND SHAKING
GROUND FAILURE
SURFACE FAULTING
TECTONIC DEFORMATION
TSUNAMI RUN UP
AFTERSHOCKS
• PREPAREDNESS
•PROTECTION
•EARLY WARNING
•EMERGENCY RESPONSE
•RECOVERY and
RECONSTRUCTION
19. TOWARDS DISASTER RISK
REDUCTION FOR VOLCANOES
RISK ASSESSMENT
• VULNERABILITY
VOLCANIC
VOLCANIC
ERUPTIONS
ERUPTIONS
• COST
• EXPOSURE
• EVENT
EXPECTED
EXPECTED
LOSS
LOSS
• BENEFIT
POLICY •CONSEQUENCES
ASSESSMENT
POLICY
POLICY
ADOPTION
ADOPTION
20. THE KEYS TO RESILIENCE:
1) KNOW THE ERUPTIVE HISTORY OF
YOUR REGION’S VOLCANOES,
2) BE PREPARED
3) HAVE A WARNING SYSTEM
4) EVACUATE
5) LEARN FROM THE
EXPERIENCE AND START OVER