UPDATE, 4:42 P.M.: power has been restored and regular service is resuming with minor delays and crowds through 5:30 p.m.
 
This just in from the Metro Alerts Twitter feed:  
 
“@metrolaalerts: Red & Purple Line MAJOR DELAYS due to loss of pwr. No service btwn 7th/Metro & Wil/Vermont. Use Rapid 720 Bus on Wilshire to/fr Downtown ^ST”  
“@metrolaalerts: Subway service at this time as follows: Union Sta<>7th/Metro. NoHo<>Vermont/Beverly. Wil/Western<>Wil/Normandie. Expect major delays. ^ST”  
“@metrolaalerts: Bus shuttles requested but will take time. Plz be patient. Use 720 on Wilshire. In Downtown, board 720 on 5th/Broadway (PershingSq). ^ST”