DIRECTIONS: Search the following real-life event and write what are the
cause and effect of the following scenario
1. Itogon Landslide
2. Valencia, Cagdianao, Province of Dinagat Islands landslide
3. Mayon volcano lahar landslides (November 2006)
4. Bohol city sinkholes (October 2013)
5. Kabangkalan city negros sinkhole
Answer (1)
Answer:Here are the causes and effects of the specified geological events:1. **Itogon Landslide (September 2018)** - **Cause:** Triggered by heavy rainfall from Typhoon Mangkhut (locally known as Ompong), which brought torrential rains and strong winds to the region. The situation was exacerbated by human activities such as deforestation, small-scale mining operations, and development on unstable slopes. - **Effect:** The landslide resulted in significant loss of life and property damage, with numerous casualties reported and destruction of homes and infrastructure in the area. 2. **Valencia, Cagdianao, Province of Dinagat Islands Landslide (January 2010)** - **Cause:** Continuous heavy rains from December 31, 2009, to January 1, 2010, led to soil saturation and instability, triggering the landslide. - **Effect:** The landslide affected 100 families, leading to displacement and damage to properties in the area. 3. **Mayon Volcano Lahar Landslides (November 2006)** - **Cause:** In July 2006, Mayon Volcano had been emitting ash and lava, depositing loose volcanic materials on its slopes. On November 30, 2006, heavy rains from Typhoon Durian (locally known as Reming) mobilized these deposits, resulting in deadly lahar flows and landslides. - **Effect:** The lahar flows caused extensive destruction in surrounding communities, leading to significant loss of life and property.4. **Bohol Sinkholes (October 2013)** - **Cause:** A 7.2-magnitude earthquake struck Bohol in October 2013, causing vibrations that led to the collapse of underground limestone formations, resulting in sinkholes. - **Effect:** The sinkholes caused damage to infrastructure and posed hazards to residents, leading to evacuations and long-term geological assessments.5. **Kabankalan City, Negros Sinkhole** - **Cause:** Specific information on the Kabankalan City sinkhole is limited. Generally, sinkholes in such regions can be caused by natural processes like heavy rainfall leading to the dissolution of limestone bedrock, or by human activities such as groundwater extraction or construction that destabilizes the ground. - **Effect:**Sinkholes can lead to ground subsidence, damage to structures, and pose risks to residents, necessitating evacuations and remediation efforts.
