Seniority between two mortgages recorded at the same date/time

[Haiyang A.]

I was looking at an upcoming bank foreclosure and noticed that the original owner had two mortgages recorded with the same date and time. The current foreclosing mortgage appears to be of lesser amount ($20K vs. $90K for the other one). Because they have the exact same recorded date and time per the local recorder’s office, how can we determine the seniority of the lien?