Posts

Bolivia most dangerous natural hazards

Image
 Bolivia In Bolivia the most dangerous natural hazards are landslides, blocked roads, and flooding which are common. Landslides are dangerous because debris flows are fast moving that are dangerous to life and property because they move quickly destroy objects in there paths and often strike without warning. Flooding happens because of deforestation which increases the intensity of floods due to the removal of the natural protection of the soil. Over 5,500 families have been affected by flooding across La Paz, Beni and Santa Cruz departments in Bolivia. Two fatalities were reported and dozens of homes and wide areas of crops have been destroyed. The most affected areas are Trinidad, capital of the department of Beni with 20,000 affected families and the department of Sant Cruz. I would start by targeting Santa Cruz and the department of Beni for mitigation factors these locations are high risk and alert for flooding and landslides. Prolonged heavy rains have caused a hilltop to col...
Post a Comment
Read more
Image
Coastal Erosion in Chile Studies have found that 80% of Chilie's coastlines have erosion. This is linked from storm damage since 2015. Coastal erosion on four urban beaches on Valpariso Bay was analyzed. Satellite images and topography surveys were used to determine the spatial-temporal changes in the shoreline. These changes were from wave climate, and sea level. The analysis showed that Reneca beach experienced accretion of 12.6 between 1964 and 2006. Caleta Portales was really affected by a shore retreat of 12.6 between 2004 and 2016. All and all erosion rates are increasing. The sea level is rising to 30 CM during warm phases. Also, with the increase of extreme storms which went from 5 events in the 1960s to currently 20 events in the most recent years. This erosion is suggesting that these coasts could deteriorate if such factors become more prevalent. Erosion negatively effects the coasts. Wind waves, storm surges, crustal changes caused by earth...
3 comments
Read more
Image
Lake Poopo was once Bolivia's.  second largest body of water. The high-altitude lake hosted 200 species of birds, fish, mammals. In recent years the droughts became lengthy. Now abandoned fishing boats, burning salt, rust, fishing nets and bird feathers. Even Bolivia's waterways high in the Andes could not escape pollution. A Bolivian lake that was once beautiful thriving with wildlife has become a waterless basin full of plastic waste.  Lake Uru Uru was beautiful as well and was known for its large flamingo population. The lakes water has been discolored brown, black cadmium, zinc, and arsenic from a nearby mine. Lake Uru Uru is covered in plastic bottles and all manmade garbage. The Piles of trash come from the city of Oruro near the river where residents dump waste and also local mine companies leaks. The river nearby is without water therefore, so garbage keeps piling up with nowhere to go. coastal areas are dynamic en...
Post a Comment
Read more
Image
                                                               Bolivia Hail Storms Many thunderstorms can produce hard, rounded, or irregular pieces of ice:  hailstones. The greatest hazard is large hail from severe thunderstorms. (Ana Garcia slides video 13:36) An intense thunderstorm pounded Tarija Bolivia on Sunday October 31, 2021. Tarija is.  located  in the Southern Part of the country, about 540 miles South of La Paz, one of  Bolivia's  two capital cities. In various parts of the city rivers of water and hail flowing  down streets and residents shoveling hail away from stranded vehicles, much the same way, one would do with snow. The high temperature in Tarija topped out at 86 degrees.  Fahrenheit.  on October 31, and the low was 59. Hail forms in a thunderstorm a...
1 comment
Read more

Bolivia landslides: Neighbourhoods destroyed in La Paz

Image
  Mass wasting any type of earth materials under direct influence of gravity it does not require a transporting medium such as water, wind or glacial ice although it does have triggers (Video Garcia 0:44 seconds)  Many landslides (soil, slips, debris flows) develop during rainstorms when slopes become saturated slumps develop months or years folding the deep infiltration of water into a slope water erosion of the base or toe of a slope decreases stability (Garcia video 17:19) Dozens of houses have been destroyed in a landslide in the Bolivian capital of La Paz, affecting hundreds of people. Footage shows entire brick homes caving into clouds of dust and falling down hills as locals flee with pet and children. Emergency services began to evacuate before the worst of the collapse.    The landslides followed heavy rains on Tuesday the location of the San Jorge neighborhood on a former landfill contributed to instability. Sitt...
1 comment
Read more
Image
  Volcano comes from the Island of Vulcano in the Mediterranean Sea. Centuries ago people believed that Vulcano was the chimney of the forge of Vulcan, the blacksmith of the Roman Gods ( Slide  3 Garcia). Parianacotta volcano in Bolivia More than 80% of Earths surface (above and below sea level) is from volcanic origin (slide 2 Garcia).  The country of Bolivia hosts numerous active and extinct volcanoes across its territory. The active Volcanoes are in Western Bolivia making up the Cordillera Occidental, the western limit of the Altiplano plateau. Many of the active volcanoes are international mountains shared with chile. Chile Volcano Eruption Sends Lava Shooting Into Sky The eruption from Chile's Villarrica volcano was visible from  miles away. Tunupa Volcano is located at the center of the center of  Altiplano, or the Andean Plateau, and rises as high as 5.3  kilometers (3.3 miles in elevation. The volcano is a composite  cone-a large, complex volca...
1 comment
Read more
Image
 Bolivia's Seismicity and what measures are in place to prevent the earthquakes effects. An Earthquake is a release of stored energy resulting from the breaking or sudden movement of rocks under stress (Chapter 3 slides video Garcia).                                     May 14, 2019 Location of Bolivia seismic network Earthquakes occur along a plane of weakness in the Earths crust a fault, very common along plate boundaries ( Chapter 3 Slides video Garcia). Fault is a planar structure or system in a rock, across which there has been significant displacement offset along the fractures as a result of earth movement  ( Chapter 3 slides video Garcia).                                                             ...
2 comments
Read more