Scientists called Tuesday’s steam-generated explosion a “small phreatic event,” but it not only killed five, but also left at least six people injured

2. ERUPTION OF MT. MAYON
The Philippines
May 7, 2013

3. CURRENT THINKING ABOUT
MT. MAYON
• At present, Philippine
volcanologists believe on the
basis of ongoing monitoring
that an imminent major
eruption of Mt. Mayon is NOT
likely.

4. A SMALL AND DEADLY ERUPTION
 Scientists called Tuesday’s
steam-generated explosion a
“small phreatic event,” but it not
only killed five, but also left at
least six people injured

5. ERUPTION OF MAYON
MAY 7, 2011

6. ERUPTION OF MAYON

7. LATERAL BLAST
VOLCANIC
ERUPTIONS
PYROCLASTIC FLOWS
FLYING DEBRIS
VOLCANIC ASH
LAVA FLOWS
LAHARS
TOXIC GASES
CAUSES
OF RISK
CASE HISTORIES

8. PAST ERUPTIONS OF MT.
MAYON
• Mt. Mayon has had 48 recorded
eruptions in the past 400 years,
with the 1841 event the most
destructive when lava from the
volcano buried the entire town
of Cagsawa and killed more
than 1,200 people. .

9. LAST ERUPTION OF MT.
MAYON
• Before the May 7th eruption, Mt.
Mayon’s last eruption was in
December 2009. .

10. MT. MAYON IN 2009
• On Tuesday December 15,
2009, the Philippines
evacuated around 20,000
people from the slopes of Mt.
Mayon as plumes of ash
exploded skyward and lava
oozed down its upper slopes.

11. MT. MAYON
DECEMBER 15, 2009