Suspicious sign in prevented - Is Google mistaken?

Received two of these from Google: Someone recently tried to use an application to sign in to your Google Account. We prevented the sign-in attempt in case this was a hijacker trying to access your account. Please review the details of the sign-in attempt <My own ip address> Along with a sms. I'm not the only one getting this. A friend of mine got it a few minutes before I did. The ip was from Azerbaijan. Have you been getting this too?