Natural Disasters at San Luis Obispo de Tolosa, Guatemala

Location Context

San Luis Obispo de Tolosa is a municipality in Suchitepéquez department, southwestern Guatemala, near the Pacific coastal plain and volcanic highlands.

Recorded Hazards

Earthquakes

• 1773 Guatemala Earthquake (M7.5): Destroyed Antigua; heavy damage in region.
• 1976 Guatemala Earthquake (M7.5): 23,000+ dead nationwide; severe shaking here.
• Frequent subduction-zone quakes (Cocos/Caribbean plate).

Volcanic Activity

• Volcán de Fuego (35 km NE) – frequent eruptions (1999, 2002, 2018 deadly). Ashfall, pyroclastic flows, lahars reach area.
• Santa María / Santiaguito (60 km NW) – ongoing dome extrusion, ash.

Tropical Cyclones & Floods

• Hurricane Mitch (1998): Cat 5 stall → 1,000+ mm rain → catastrophic floods/mudslides.
• Tropical Depression 12E (2010): Extreme rainfall, river overflow, infrastructure loss.
• Annual rainy season (May–Oct) brings flash floods.

Resilience Measures

• CONRED (national disaster agency) early warnings.
• Community evacuation routes, shelters.
• Reforestation on slopes to reduce landslides.