The phrase "a wide radius" is correct and usable in written English.
It can be used when describing a large distance from a central point, often in contexts related to geography, physics, or any situation involving measurement.
Example: "The search area was set to a wide radius to ensure that no potential locations were overlooked."
Alternatives: "a large radius" or "an extensive radius".
The shopping center draws customers from a wide radius but is now grappling with extensive vacancies.
There was no immediate claim of responsibility for the blast, which damaged shops and vehicles across a wide radius.
The thick, dusty air of Achinsk coats grass blades to death and desertifies everything in a wide radius around the city.
Often the only food I could find was windfall, but I had already learned where the fruit trees were within a wide radius around the city.
A huge explosion ripped through part of a luxury hotel in Pakistan's capital, Islamabad, today, damaging buildings in a wide radius, killing scores and injuring many more.
The most effective way to eliminate bird flu, international health agencies say, is to find all the sick birds, then slaughter every domesticated bird in a wide radius, sometimes extending up to several miles, depending on the topography.
Within a wider radius of about six miles, no animals are allowed to circulate, even to go to slaughter.
Mr. Walker would like disposal well operators to be required to plug abandoned wells in a wider radius, of a half-mile.
THE CROWD Asian-food lovers from a wider radius than most local restaurants, including fans of the owner's previous noodle shop in Greenwich Village.
But on the street in question, or even within a wider radius of the 1930s semi-detached home where Pilkington and her children, Francecca Hardwick and Anthony Hardwick, were subject to years of harassment, abuse and even physical attack, no one had to ask who Family A really were.
In the frame of future solar system exploratory missions the European Space Agency (ESA) has identified the need to extend the range of scientific measurements from the immediate vicinity of static landing stations to a wider radius of a few tens of meters.
