East Coast Subsidence: A Slow Sink with Real Consequences

US East Coast: A Slow Sink With Real Consequences

A recent study conducted by researchers at Virginia Tech and the US Geological Survey has found that the East Coast of America, specifically its densely populated areas, is sinking at a surprisingly fast rate, as indicated by detailed satellite imagery.

Population, infrastructure and SLR on the US east coast. A) Population distribution in major cities on the US east coast. B) Close-up view of New England showing Infrastructure systems/facilities on the US east coast. The summary table beneath (B) represents statistics for all infrastructure facilities analyzed in this study. C) Time series of monthly (dashed line) and annual (solid line) mean sea level for tide gauge stations shown as inverted triangles in (A) (21). The time series have been offset for visual clarity.

The satellite imagery shows that cities like New York City, Baltimore, and Norfolk are sinking at rates of 1 to 2 millimeters per year. This could lead to significant damage to infrastructure and pose a threat to people and property if not addressed. The issue is worsened by the fact that the areas experiencing land sinking are in highly populated and heavily developed regions.

The above graphic features: a spatial map of vertical land motion on the East Coast (left panel); primary, secondary, and interstate roads on Hampton Roads, Norfolk, and Virginia Beach, Virginia (top right panel); and John F. Kennedy International Airport, New York (bottom right panel). The yellow, orange and red areas on these maps denote areas of sinking. Images by Leonard Ohenhen.
The East Coast is experiencing subsidence rates of two millimeters per year, which is causing problems for over two million people and 800,000 properties. Subsidence, the sinking or caving-in of land, is a very real and significant threat.

The potential sinking of New York City due to rising sea levels would cause significant damage to critical infrastructure such as airports and railways, as well as increase the risk of dangerous flooding.

East Coast Subsidence: A Slow Sink with Real Consequences

If you feel hopeless, it is understandable. However, the researchers suggest that taking proactive measures to mitigate climate change could prevent more severe consequences of East Coast subsidence. Unfortunately, achieving a forward-thinking climate response is becoming increasingly challenging in a divided America.

Reference- Journal PNAS Nexus, National Geographic, The Washington Post, Futurism,CNN