I have found two hornets in my backyard in Salem. My husband said I should report it as he read something about a hornet problem in WA. One of them my cat was after but I smashed it because I was scared it was huge.
Marion County Oregon
Most likely they are not the Asian Hornet, as they are currently only found in a small area of Washington. You may however submit a photo to the Oregon Department of Agriculture Insect Pest Prevention & Management Program: firstname.lastname@example.org
This article has an excellent visual reference - they are incredibly large. https://www.koin.com/news/special-reports/they-probably-arent-murder-hornets-so-stop-killing-them/