FLOOD
Flood is a disaster that
caused by clogged drain, water absorption that not enough, problem
in the river like the building on
the river which block the water flow, trash in the river which makes the flow
in the river not perfect, river silting etc. Clogged drains can caused by trash, volume of
rainwater, drain construction, and water absorption that not enough is caused
by lack of green areas.In the area
which near with beach, flood is also caused by tide of sea water. Flood can caused many desease like diarrhea,
scarlet fever, malaria, itching, vomiting, etc. Flood also caused house damage
and sometimes flood make people died.
Clogged drain : selokan buntu
Water absorbtion : resapan air
Building : bangunan
River Silting : pendangkalan sungai
Lack : kurangnya
Tide : pasang surut
EARTHQUAKE
There
are two types of earthquakes, the
tectonic and volcanic
earthquakes. Tectonic earthquakes is caused by movement of tectonic plates especially convergent
movement. Tectonic earthquake often occur in Indonesia because Indonesia is
located in two continental plates such as Asian Continent and Australian
Continent. In Indonesia also often hit by volcanic earthquake because in
Indonesia there are lot of volcanic mountain or active mountain. Volcanic
earthquakes is caused by activity inside the volcanic mountain and volcanic
explosion. If you face a earthquake my advice is, don’t be panic, run out to
the outdoor area or hide under the table, avoid a building around you
especially high building and pray.
Tectonic plates : lempeng tektonik
Convergent movement : gerakan konvergen (gerakan dua lempeng bumi yang saling mendekat)
TSUNAMI
Tsunami
is Japanese word that mean big waves in the harbor. Tsunami is caused by
earthquake under the sea like tectonic earthquake in the seabed or volcanic earthquake from the mountain in the mid-sea or
under the sea. Tsunami also can caused by meteor pounding in the sea. 90% Tsunami is caused by earthquake under the
sea. Vertical movement in earth’s
crust caused seabed suddenly move up
and move down. The sea water become unstable
and caused a big waves that hit an areas near the beach. Magnitude
of
the wave is determined by the magnitude of the
quake and the water pressure. Before Tsunami hit mainland
usually there
are earthquakes around the beach area and then the sea water suddenly disappear or receding. If you face this
situation you must run away from the beach as far as possible and go to the
high area.
Seabed: dasar laut
Pounding : hantaman
Vertical movement : gerakan vertikal
Magnitude : kekuatan
Mainland : daratan
Receding : surut
FLASH FLOOD
Flash flood is flood that caused by continous
rain until make high volume of water in an area. Because of the volume of
water too much the land in that area can’t absorb it well, so that the water
flow to the lowest area but not through the river. The water flow through all
possible area like forest, houses, farm, rice field, plantation,etc with high
speed. So that flash flood’s water is brown because it contain land, mud, soil,
plant, etc. This disaster caused a lot of
losses so you must keep a environmental balance to avoid it.
Flash flood : banjir bandang
Continous rain : hujan berkelanjutan, hujan terus menerus
Losses : kerugian