  In February 2011, a burst event of the H$_{2}$O maser in Orion KL
(Kleinmann-Low object) has started after 13-year silence. This is the third
time to detect such phenomena in Orion KL, followed by those in 1979-1985 and
1998. We have carried out astrometric observations of the bursting H$_{2}$O
maser features in Orion KL with VERA (VLBI Exploration of Radio Astrometry), a
Japanese VLBI network dedicated for astrometry. The total flux of the bursting
feature at the LSR velocity of 7.58 km s$^{-1}$ reaches 4.4$\times10^{4}$ Jy in
March 2011. The intensity of the bursting feature is three orders of magnitudes
larger than that of the same velocity feature in the quiescent phase in 2006.
Two months later, another new feature appears at the LSR velocity of 6.95 km
s$^{-1}$ in May 2011, separated by 12 mas north of the 7.58 km s$^{-1}$
feature. Thus, the current burst occurs at two spatially different features.
The bursting masers are elongated along the northwest-southeast direction as
reported in the previous burst in 1998. We determine the absolute positions of
the bursting features for the first time ever with a submilli-arcsecond (mas)
accuracy. Their positions are coincident with the shocked molecular gas called
the Orion Compact Ridge. We tentatively detect the absolute proper motions of
the bursting features toward southwest direction. It is most likely that the
outflow from the radio source I or another young stellar object interacting
with the Compact Ridge is a possible origin of the H$_{2}$O maser burst.
