1. 1
Landslides
• A landslide is an
catastrophic event where a
block of earthen mass
slides downhill.
• Cause significant loss of
life and billions of dollars
each year.
2. 2
SIGNS OF IMPENDING
LANDSLDIE
• 1. Spring or water seepage on areas that
are not typically wet.
• 2. Soil that loosens and moves away from
the foundation.
• 3. New cracks on walls.
• 4. Buildings, poles, walls and fences that
are leaning
• 5. Sudden rapid flow of creek waters
carryong more silted water.
3. 3
SIGNS OF IMPENDING
SINKHOLE
• 1. Groundwater that does not provide
same quality as before.
• 2. Sign posts, or poles that are leaning,
slumping, sagging, slanting or bent.
• 3. ponds that recently formed
4. 4
SCIENTIFIC TOOLS FOR
ASSESING LANDSLIDE AND
SINKHOLES
• 1. GPR- it can
detect the type of
objects, changes in
material, voids and
cracks under the
layer of the soil.
7. 7
PRECAUTIONARY
MEASURES
• If youre area is prone to landslide”
• 1. Plant more trees, grasses and other
vegetation
• 2. Build channels for diversion of mudflow.
• 3. Do not build house on or near slopes
8. 8
PRECAUTIONARY
MEASURES
• BEFORE LANDSLIDE:
• 1. Be familiar with your sorroundings
• 2. Avoid open storm-water drainage and
ruknoff.
• 3. Be udpdated on news regarding the
condition of your area
• 4. LEarn and participate in emergency
response plans for your community.
9. 9
PRECAUTIONARY
MEASURES
• DURING A LANDSLIDE
• 1. Be attentive with unusual sounds.
• 2. Stay away from path of debris.
• 3. Stay on elevated and sturdy area.
• 4. If escape is not possible curl on a tight
ball and protect your head.
10. 10
PRECAUTIONARY
MEASURES
• AFTER A LANDSLIDE:
• 1. Avoid slide area.
• 2. Listen to the latest emegency
information.
• 3. If landslide is caused by rainfall watch
out for flooding
• 4. Check for injured or trapped people
near slide.
11. 11
PRECAUTIONARY
MEASURES
• IF SINKHOLES ARE NOT DETECTED
EARLIER:
• 1. Find refuge in a stable ground
• 2. Wait until the structures on and around
the sinkhole stops moving
• 3. Wait for local governments
announcement when it is safe to go back.
12. 12
PRECAUTIONARY
MEASURES
• After a skinhole:
• 1. Stay away from sinkhole
• 2. Monitor damages on objects.
• 3. Do not throw amything into the sinkhole
• 4. Secure whatever is left on your
properties.
16. 16
INTENSITY CLASSICATIONS
⚫Tropical Depression
- up to 61 kph
⚫Tropical Storm
- 62 to 88kph
⚫Severe Tropical Storm
- 89 to 117 kph
⚫Typhoon
- 118 to 120 kph
⚫Super Typhoon
- winds sustain speeds exceeding
220kph
17. PUBLIC STORM WARNING SIGNALS
• PSWS #1 - Tropical cyclone winds of 30 km/h (19 mph)
to 60 km/h (37 mph)
• PSWS #2 - Tropical cyclone winds of 60 km/h (37 mph)
to 100 km/h (62 mph)
• PSWS #3 - Tropical cyclone winds of 100 km/h (62 mph)
to 185 km/h (115 mph
• PSWS #4 - Tropical cyclone winds of greater than
185 km/h (115 mph)
• PSWS#5 - Super Typhoon winds which is greater than
220kph.
• PhilippinePublicStormWarningSignals.
18. 1. Typhoons start off as tropical thunderstorms. The
strong winds pull in moisture from the oceans.
19. The thunderstorms convert the moisture into heat.
The heat causes more air to flow to the centre of
the storm causing evaporation.
20. All the heat and air flow toward the
eye creating the typhoon.
21. TRACK: ARTS AND DESIGN
– PAGASA needs WEB Designer to create
information material showing how the
sorroundings look like during thunderstorms.
As a web designer for PAGASA you are
tasked to create an online poster that shows
the different public storm signals based on the
impact of winds on the environment. Your
photo will be uploaded on their Website for
public information, so it should be delailed,
accurate and visualy appealing.
22.
23.
24.
25. Thunderstorm
Also known as eletrical storm
characterized by heavy rain with the
presence of thunder and lightning.
26. Hazard of thunderstorm is
associated by the following:
1. Heavy rainfall that can lead of flooding.
2. Lightning can electrocute humans and
livestock and damage electrical facilities.
3. Air turbulence which can displace or
disorient a flying aircraft and
4. fire that can burn buildings and
vegetation.
32. Flooding
- is the presence of
excessive water on
a supposedly dry
land.
33. Crowding of structures and
people may prevent poor draining
leading to more serious problems
such as the following:
1. Disruption of commercial and industrial operations
leading to loss of income.
2. Stand-still traffic causing paralysis in network
transportation and communication
3. Displacement of affected homes and familes.
4.Damaged properties resulting from corrosion and water
intrusion.
5. Waterborne diseases such as leptospirosis and typhoid
fever.
34. FLASH FLOOD
▪A rapid flow of
water on saturated
soil or dry soil that
has poor absorption
capability.
35. FLASH FLOOD
Flash Flooding Safety Tips
▪ Do not drive across a flooded roadway or low water
crossing
▪If your vehicle stalls in high water, leave it and seek
higher ground
▪Be especially careful at night when it is harder to
recognize the dangers of flash flooding
36. STORM SURGE
▪An abnormal rise in coastal
waters due to massive force from
sea or from air above the sea.
44. Appropriate measures BEFORE
and AFTER Hydrometeorological
hazards
•BEFORE
•1. Store enough food, drinking water and medicine.
•2. Have a working flashlight, spare batteries, candles and matches ready.
•3. Meet all members of your family and make plans for evacuation to a higher or
safer ground.
•4. Reinforce roos, windows, and structural supports or foudnations of your house
to withstand strong winds.
•5. Transfer valuable s,appliances, and furniture in a higher ground.
•6. Participate in cleanup activities .
•7. Remove dead and rotting trees that may fall and can be carried away by water
current.
45. Appropriate measures BEFORE
and AFTER Hydrometeorological
hazards
•DURING
1. If there is no advice to evacuate, stay indoors.
2. Listen to updateds by PAGASA and advisories of NDRRMC.
3. If you see any signs of water rising, unplug any electrical equipment.
4. Move to a safer fround when advised by local authorities.
5. Bring basic necessities to evacuation site.
6. Beware of open electrical cables.
7. Do not go near windows and doors.
46. Appropriate measures BEFORE
and AFTER Hydrometeorological
hazards
•AFTER.
1. Wait for announcements from local authorities as to whether it is safe to return
home or not.
2. Report fallen power lines or cracked roads.
3. Check your house for any damage and repair it immediately.
4. Watch out for live wires or any electrical outlet immersed to water.
5. Boil water before drinking it as it may be contaminated.
47. TRACK: ARTS AND DESIGN
– PAGASA needs WEB Designer to create
information material showing how the
sorroundings look like during thunderstorms.
As a web designer for PAGASA you are
tasked to create an online poster that shows
the different public storm signals based on the
impact of winds on the environment. Your
photo will be uploaded on their Website for
public information, so it should be delailed,
accurate and visualy appealing.
