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# 2 Availability of surface and groundwater (Vulnerable conditions) - **↑ Greater** the availability, **↑ More** likely lahars can develop - **↑ Increases** the amount of people and buildings exposed - **↑ Increases** disaster risk **Lahars can bury + destroy properties** ↑ Increase injuries + dea...

# 2 Availability of surface and groundwater (Vulnerable conditions) - **↑ Greater** the availability, **↑ More** likely lahars can develop - **↑ Increases** the amount of people and buildings exposed - **↑ Increases** disaster risk **Lahars can bury + destroy properties** ↑ Increase injuries + death **Sources:** - Rapid melting of snow + ice on volcano's summit before/after eruption - Groundwater released through cracks + fractures during eruption - Existing lakes/rivers - Heavy rainfall **Example:** - Many lahars followed the 1991 Mount Pinatubo, Indonesia eruption - Due to heavy rain (Monsoon season) - > 100,000 homes destroyed