The phrase "a depth of concern" is correct and usable in written English.
It can be used when expressing a significant level of worry or anxiety about a particular issue or situation.
Example: "The recent events have caused a depth of concern among the community regarding safety measures."
Alternatives: "a great deal of concern" or "a significant level of concern."
But it does illuminate a largely hidden depth of concern, particularly among liberal Americans, about a gathering global disaster that has tended to be discussed, if at all, at the fringes of the presidential debate.
In a reflection of the depth of concern about currency outflows caused by rising interest rates in the United States — meaning investors can obtain similar returns in emerging markets at far lower risk — the BRICS nations announced an intention to create a collective fund of $100 billion to defend their weakening local currencies.
The key rate has been lowered by a total of three and a half percentage points since then, a clear indication of the depth of concern in New Zealand — and elsewhere — about the economic slowdown that has swept around the world.
It was exciting to see that depth of concern from a powerful leader over an issue that affects us all.
Although he did not apologize for making the visit to Bob Jones, his remarks were a striking about-face for the Texas governor, who in recent weeks had brushed off suggestions that his appearance there was a mistake, and it reflected the depth of concern in the Bush campaign that the tenacious after-life of the episode was doing Mr. Bush political damage.
A poll that my organisation, Lead Not Leave, has just commissioned shows the depth of concern among young people about a no-deal Brexit.
Strong single words, perhaps suggesting depth of concern, was used in response to a question about whether time issues were a concern in the context of using PST in clinical practice.
