DRRR-MODULE-3-PPT.pptx

WELCOM E GROUP 4  Potential Earthquake Hazards MODULE 6  IN THIS MODULE YOU ARE EXPECTED TO: 01 02 03 identify recognize the analyze the various natural signs of effects of the potential an impending different earthquake tsunami(D...

WELCOM E GROUP 4  Potential Earthquake Hazards MODULE 6  IN THIS MODULE YOU ARE EXPECTED TO: 01 02 03 identify recognize the analyze the various natural signs of effects of the potential an impending different earthquake tsunami(DRR11 earthquake hazards /12-If-g- hazards (DRR11/12- 18); and (DRR11/12- If-g-17); If_x0002_g- 19).  EARTHQUAKE – also called a quake, tremor, or temblor – is the shaking of the Earth's surface resulting from a sudden release of energy in the lithosphere that creates seismic waves. TRENCH ---The Manila Trench is an oceanic trench in the Pacific Ocean, located west of the islands of Luzon and Mindoro in the Philippines.  RING OF FIRE ---The Ring of Fire is a tectonic belt of volcanoes and earthquakes that surrounds most of the Pacific Ocean. How Earthquake vibration generated Most natural earthquakes are caused by sudden slippage along a fault zone.  VOLCANO ----A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. The process that forms volcanoes is called volcanism. TWO TYPES VOLCANO ACTIVE INACTIVE VOLCANO VOLCANO An active volcano is a Inactive volcanoes also volcano that has erupted referred to as extinct during the Holocene (the volcanoes, are those that current geologic epoch haven’t erupted for that began approximately several years and are not 11,700 years ago), is expected to erupt again. currently erupting, or has They have no signs of ACTIVE VOLCANOES IN THE PHILIPPINES 5 Pontential Earthquake Hazards 1. GROUND SHAKING 2.GROUND RAPTURE 3. LIQUEFACTION 4. EARTHQUKAE-INDUCED LANDSLIDE 5.TSUNAMI AND SEICHES GROUND SHAKING The first main earthquake hazard (danger) is the effect of ground shaking. GROUND RAPTUE Deformation on the ground that marks the interaction of the fault with the earth’s surface LIQUEFACTION Liquefaction is the mixing of sand or soil and groundwater (water underground) during the shaking of a moderate or strong earthquake EARTHQUAKE-INDUCED LANDSLIDE Downslope movement of rocks, soil and other debris commonly triggered by strong shaking. TSUNAMI AND SIECHES Tsunamis can also cause a great deal of damage WHAT IS THE DIFFERENCES OF TSUNAMI AND SIECHES. ? A tsunami is what most people call a tidal wave, but it has nothing to do with the tides on the ocean. It is a huge wave caused by an earthquake under the ocean. Seiches are like small tsunamis. HOW TSUNAMI GENERATED ? Tsunami is a phenomenon where a series of strong waves that are responsible for the surge in water sometimes reach the heights in many meters. This is a natural disaster that is caused due to the volcano eruption in the ocean beds. Also, a phenomenon like landslides and earthquakes contributes to reasons for a tsunami. Like other natural disasters, the impact of the tsunami is also huge. It has been seen throughout history how disastrous the tsunami is. The essay on tsunami talks about various factors that contribute to the tsunami and the damage it causes to mankind. 3 Natural Signs of an Impending Tsunami 1. Severe ground shaking from local earthquakes may cause tsunamis. 3 Natural Signs of an Impending Tsunami 2. As a tsunami approaches shorelines, water may recede from the coast, exposing the ocean floor, reefs and fish.Water in the beach moving backward exposing the beach. 3 Natural Signs of an Impending Tsunami 3. Abnormal ocean activity, a wall of water, and an approaching tsunami create a loud "roaring" sound similar to that of a train or jet aircraft.This aerial view on the map of India shows the different flows of water within its shoreline. Abnormal water flow within the ocean accompanied by a strong loud roaring sound is a sign of an impending tsunami  As a tsunami approachess Severe ground shaking from horelines,watermay local earthquakes may cause recede from the tsunamis. coast,exposing the ocean floor, reefs and fish. If you experience any of these Abnormal ocean activity, a wall of phenomena, don't wait for official water, and an approaching evacuation orders. Immediately tsunami leave low_x0002_lying coastal create a loud "roaring" sound areas and move to higher similar to ground." that of a train or jet aircraft. THANK YOU