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120-1 Subsidence Around the World 2023–25
Session: Land Surface Subsidence: Processes, Impacts, and Ongoing Challenges
Presenting Author:
James Borchers
Author:
Borchers, James W1
(1) Watermatters LLC, Consultant, Davis, California, USA,
Abstract:
This presentation summarizes land subsidence during 2023-2025 as reported in the news media worldwide. Subsidence during the past two years occurred from groundwater extraction, hydrocarbon production, hydrocompaction, tunneling, loading of squishy sediment, drought-induced soil shrinkage, thawing permafrost, karst, mining, and other causes. News reports described the magnitude and areal extent and damage from subsidence and its effects on infrastructure at various locations in the U.S., England, India, Iran, China, Indonesia, Vietnam, Korea, Russia, Taiwan, Brazil, and elsewhere. Threats from land subsidence have spurred, in some cases, unusual public policy decisions and spawned a market for subsidence insurance.
Geological Society of America Abstracts with Program. Vol. 57, No. 6, 2025