Natural Hazards in Egypt: Droughts, Earthquakes, Nile Floods, Desertification, Dust Storms

Egypt faces a distinct set of natural hazards shaped by its hyper-arid climate and tectonic setting:

• Drought: Chronic. <95% of land is desert; rainfall <20 mm/yr in most areas. Nile flow depends on Ethiopian Highlands rainfall. Multi-year droughts threaten water/food security.
• Earthquakes: Northern Egypt (Cairo, Nile Delta) sits on the African-Eurasian plate boundary. Moderate quakes (M5–6) occur (e.g., 1992 Cairo M5.8 — 545 dead). Hellenic Arc subduction zone to north.
• Nile Floods: Historically annual; now controlled by Aswan High Dam (1970). But extreme upstream rainfall can still cause flooding (e.g., 2020 Sudan/Ethiopia floods raised Lake Nasser). Flash floods in wadis (dry valleys) after rare downpours.
• Desertification: Expansion of desert due to climate change, overgrazing, groundwater depletion, loss of vegetation. Threatens Nile Valley margins and oases.
• Dust/Sand Storms (Khamaseen): Spring (Mar–May). Hot, dry, dusty winds from Sahara reduce visibility, spike respiratory illness, damage crops/solar panels, disrupt transport.

Climate change amplifies drought, heat, and sea-level rise (Alexandria, Delta subsidence).