types of natural disasters

The types of natural disasters that cause worldwide losses are many. Earthquakes, tsunamis, volcanic eruptions, forest fires, and landslides are just a few of the non-weather types of natural disasters. Weather disasters include tornadoes, hurricanes, flooding, and droughts. Many of the non-weather disasters have overlaps with severe weather. For instance, many landslides are caused by excessive rainfall. As another example, forest fires often start as a result of dry thunderstorms. One of the most dangerous natural disasters is flooding. In fact, nine out of ten Presidential Disaster Declarations result from natural phenomena in which flooding is involved. For more information, go to the Flooding Fact File for information on why flooding is one of the world's most dangerous types of natural disasters.

impacto

BARU VOLCANO

 BARU VOLCANO, Western Panama

In keeping with this week's kickoff Panama Theme we take another look at Volcan Baru, one of only two active volcanoes in Panama.  I use active in the geologic context.  It has been centuries since Baru erupted, but it is dormant, not extinct, because it was active less than 10,000 years ago.  That is the geologic definition of active.

Located in the Chiriqui district of Western Panama near the Coast Rican border.  The cooler temperature and rich volcanic soil make this the main agricultural area of Panama. 

volcanoes in panama

panamá

the geographic position of our contry is very special a safe us to suffer and feel strong consequences by natural disasters like volcanic eruptions, earthquakes and other terrific natures fury.

earthquake

An earthquake (also known as a quake, tremor or temblor) is the result of a sudden release of energy in the Earth's crust that creates seismic waves.

the earthquakes are probably commons earth movements that some times feel very hard in some áreas more than others.

discovery corner

VOLCANOES

 

 A volcano is an opening, or rupture, in the surface or crust of the Earth or a planetary mass object, which allows hot lava, volcanic ash and gases to escape from the magma chamber below the surface.

 

On Earth, volcanoes are generally found where tectonic plates are diverging or converging. A mid-oceanic ridge, for example the Mid-Atlantic Ridge, has examples of volcanoes caused by divergent tectonic plates pulling apart; the Pacific Ring of Fire has examples of volcanoes caused by convergent tectonic plates coming together. By contrast, volcanoes are not usually created where two tectonic plates slide past one another. Volcanoes can also form where there is stretching and thinning of the Earth's crust in the interiors of plates, e.g., in the East African Rift, the Wells Gray-Clearwater volcanic field and the Rio Grande Rift in North America. This type of volcanism falls under the umbrella of "Plate hypothesis" volcanism.[1] Volcanism away from plate boundaries has also been explained as mantle plumes. These so-called "hotspots", for example Hawaii, are postulated to arise from upwelling diapirs with magma from the core–mantle boundary, 3,000 km deep in the Earth.

 

Erupting volcanoes can pose many hazards, not only in the immediate vicinity of the eruption. Volcanic ash can be a threat to aircraft, in particular those with jet engines where ash particles can be melted by the high operating temperature; the melted particles then adhere to the turbine blades and alter their shape, disrupting the operation of the turbine. Large eruptions can affect temperature as ash and droplets of sulfuric acid obscure the sun and cool the Earth's lower atmosphere or troposphere; however, they also absorb heat radiated up from the Earth, thereby warming the stratosphere. Historically, so-called volcanic winters have caused catastrophic famines

• Volcanoes are formed by cracks or holes that poke through the earths crust, magma is pushes it way up through the cracks it is called volcanic eruption.

• the magma in the earth surface is called lava.

• the volcanoes do not just happen anyplace.

• when lava cools and hardens, it forms volcanis rocks 

EVIDENCES