Science. All about Volcanoes !

1. VOLCANISM

2. -It is a process
wherein magma
escapes from Earth’s
interior to form cool
and hard rocks
VOLCANISM

3. -It is a landform with
an opening at its tip.
This opening is called
crater.
VOLCANO

4. Crater allows
molten magma to
flow outside the
surface.
Lava pertains to
magma that has
finally reached the
surface. –Extrusive
Volcanism

5. Viscosity
-magma’s ability to flow.
The greater the viscosity, the
greater its resistance to flow.

6. VOLCANIC
HAZARDS

7. 1-emission of large
volume of gases
2-pyroclastic materials
3-lava
4-earthquakes
5.Lahar
6.landslides /avalanche

8. How to prepare
for a
volcanic eruption?

9. Before
1. Know the signs of an impending eruption such as the increase in the frequency
of volcanic quakes accompanied by rumbling sounds, change in color of steam
emission from white to gray, and drying up of vegetation, springs, and wells
around the volcano.
2. Know the community’s safety plans by monitoring the latest advisories and
warnings, knowing the location of the evacuation site, and preparing your family’s
go bag.
3. Each person should be aware of the dangers that volcanic eruptions. Volcanic
eruptions are expected to cause ash falls which in turn could harm humans,
animals, plants, equipments, and structures. Beyond that, fine volcanic ash is also
often respirable which can cause pulmo-respiratory diseases if inhaled over
prolonged period.
4. Prepare all necessary things to bring in case of evacuation: gas mask or clean
cloth, candles, matches, flashlights, extra batteries. Don’t forget to prepare your
disaster kit ahead of time.
5. Know which areas are covered by the danger zones.

10. During
1. Stay calm. Cover your nose and mouth with mask or clean cloth and
wear protective goggles.
2. If you are outside, immediately seek cover in case of ash or rock falls.
Wear glasses to protect your eyes and avoid all low-lying places.
3. If you are inside a house, listen to the radio for updates and
developments regarding the volcanic eruption. Close all windows and doors
of the house and your car to prevent ashes from getting inside.
4. If you are driving a vehicle, pull to the side of the road and stop if there is
a heavy ash fall.
5. As soon as the ash fall tapers, scrape off the ash that has accumulated on
roof tops to prevent collapse.

11. 6. When notified, immediately evacuate to safer grounds.
Stay in the evacuation center until further instructions. Do
not attempt to leave the place unless told to do.
7. Thoroughly wash utensils before eating. Cover water
containers and food to avoid contamination with ash.
8. Keep your pets in their shelter or inside the house to
prevent them from inhaling ash.
9. Stay away from rivers and streams for possible lahar
flow.

12. After
1. Wear masks when cleaning.
After removing the ash, clean the roof and gutter with
water to prevent corrosion.
2. Shake loose the ash from plants, furniture, and windows
before cleaning them with water. Cover your nose while
cleaning.
3. Wait for further announcements related to the volcanic
eruption.