Fast radio bursts ( FRBs ) are millisecond pulses of radio emission of seemingly extragalactic origin .
More than 50 FRBs have now been detected , with only one seen to repeat .
Here we present a new FRB discovery , FRB 110214 , which was detected in the high latitude portion of the High Time Resolution Universe South survey at the Parkes telescope .
FRB 110214 has one of the lowest dispersion measures of any known FRB ( DM = 168.9 \pm 0.5 pc cm ^ { -3 } ) , and was detected in two beams of the Parkes multi-beam receiver .
A triangulation of the burst origin on the sky identified three possible regions in the beam pattern where it may have originated , all in sidelobes of the primary detection beam .
Depending on the true location of the burst the intrinsic fluence is estimated to fall in the range of 50 - 2000 Jy ms , making FRB 110214 one of the highest-fluence FRBs detected with the Parkes telescope .
No repeating pulses were seen in almost 100 hours of follow-up observations with the Parkes telescope down to a limiting fluence of 0.3 Jy ms for a 2-ms pulse .
Similar low-DM , ultra-bright FRBs may be detected in telescope sidelobes in the future , making careful modeling of multi-beam instrument beam patterns of utmost importance for upcoming FRB surveys .