Marco Cui

Ground Shaking - Ground shaking is a term used to describe the vibration of the ground during an earthquake. Ground shaking is caused by body waves and surface waves. As a generalization, the severity of ground shaking increases as magnitude increases and decreases as distance from the causative fault increases. 

Ashfall - Volcanic ash that has fallen through the air from an eruption cloud. A deposit so formed is usually well sorted and layered. 

Typhoon - A giant, rotating storm that brings wind, rain, and destruction. Hurricanes and typhoons are both kinds of tropical cyclones. 

Vulnerabilities - People, animals, hanging wires 

Gab Labasan

Ground shaking 

• Building Construction: The construction materials and methods used in my house plays a crucial role in its vulnerability. For example, if the house is constructed with unreinforced masonry or lacks proper earthquake-resistant features like reinforced concrete and steel, it would be more vulnerable to ground shaking. 

• Location: The geographical location of my house also impacts its vulnerability. Houses located in areas with a history of seismic activity, such as along fault lines or in earthquake-prone regions, are at a higher risk of experiencing ground shaking hazards. 

• Foundation and Soil Type: The type of foundation and the soil on which your house is built are critical factors. Soft or loose soil amplifies ground shaking, while solid bedrock can mitigate it. Additionally, houses with shallow foundations are more vulnerable than those with deep foundations designed to withstand seismic forces. Your house may have these hazards due to its construction materials, location in a seismic-prone area, and the type of foundation and soil it sits on. It's essential to assess and potentially retrofit your house to reduce it's vulnerability to seismic hazards.

Ash-fall

• Proximity to Volcanoes: The distance between my house and active volcanoes significantly affects its vulnerability to ash-fall hazards. Houses located closer to volcanic centers are at a higher risk of experiencing heavy ash deposition during eruptions.

• Building Design and Roof Structure: The design and materials used in the  house's construction, particularly the roof structure, can impact its vulnerability to ash-fall. Houses with roofs that are not designed to withstand the weight of accumulated volcanic ash are more likely to collapse or suffer damage.

• Preparedness and Mitigation Measures: The level of preparedness and mitigation measures in place also influence vulnerability. Houses that lack proper ash-fall protection, such as reinforced roofs, sealed windows, and access to masks and eye protection, are more vulnerable to the hazards associated with volcanic ash. 

The specific hazards your house faces from volcanic ash-fall could be due to its proximity to active volcanoes, the design and materials used in its construction, and the absence of adequate preparedness and mitigation measures. To reduce vulnerability, it's important to assess and address these factors to enhance your house's resilience to volcanic hazards.

Hydro-meteorological hazards

• Building Construction and Design: The construction materials, design , and structural integrity of your house are critical factors. If your house is poorly constructed or lacks wind-resistant features like reinforced walls, impact-resistant windows, and a securely anchored roof, it will be more vulnerable to severe wind hazards.

• Geographic Location: The geographic location of your house plays a significant role in its vulnerability to severe winds. Houses in regions prone to hurricanes, tornadoes, or other severe wind events are more likely to experience wind-related hazards. Coastal areas, for example, are at higher risk of hurricane winds.

• Maintenance and Preparedness: The maintenance of your house and your preparedness measures also impact vulnerability. Neglecting regular maintenance, such as securing loose roof shingles or trimming nearby trees, can increase the risk of damage during severe wind events. Lack of preparedness, such as not having an emergency kit or evacuation plan, can also heighten vulnerability.

The hazards your house faces from severe wind in the context of hydro-meteorological assessments could be due to its construction, its geographic location in a wind-prone area, and the level of maintenance and preparedness in place. To reduce vulnerability, consider reinforcing your house's structure, securing loose objects, and implementing proper maintenance and preparedness measures.