The phrase "affected a large area" is correct and usable in written English.
It can be used to describe the impact or influence of an event, phenomenon, or action on a significant geographical or conceptual space.
Example: "The wildfire affected a large area, destroying thousands of acres of forest."
Alternatives: "impacted a vast region" or "influenced a broad expanse".
After the floods, which affected a large area of Central Europe and caused particular damage to cultural institutions in Prague, Dresden's museums received about $1 million in private contributions as well as $3.4 million from the auction of paintings donated by artists.
The Maule Earthquake (February 27 , 2010 Chile), one of the largest recorded in history, affected a large area of the country, where several important industries were located.
On Wednesday 6 April 1667, an earthquake occurred, and severely affected a large area of the eastern coast of the Adriatic Sea, also known as southern Dalmatia, in today Croatia, and part of Montenegro.
An earthquake struck on Wednesday 6 April 1667, and severely affected a large area pertaining to the southern Adriatic domain, characterised by compressional deformation, related to the Dinarides NW SE-oriented active thrust belt (ANW SE-orientedckson 1987; Ivactiveethrust2006).
The floods affected a large area of the central Pacific Northwest but also left areas of the Cascades, Blue Mountains, and the Snake River basin unaffected by direct scour or deposition by floodwaters (Waitt 1985; Fig. 3).
One could think that a solution that affects an overall large area (high TAA) will also affect a large area at one instant of time (high MIA).
This effect is strongly evident at long ageing times (especially for samples with thinner aluminium sheet, as shown in Figure 6), because the aluminium dissolution affects a large area of the joint, inducing a critical damage in correspondence of the clinched area.
dcSSc affects a large area of the skin and one or more internal organs, frequently the kidneys, lungs, gastrointestinal tract and heart.
Although other power infrastructure, like fossil fuel and nuclear power stations, can also modify landscapes and habitats, onshore wind turbines are typically more spread out than other large-scale energy infrastructure projects and so can affect a larger area.
For further strains, these defects grow in the tensile direction and damage affects a larger area of spherulites.
