Volcanic Ash Advisory Text
FVFE01 RJTD 071948
VA ADVISORY
DTG: 20110707/1948Z
VAAC: TOKYO
VOLCANO: SAKURAJIMA 0802-08
PSN: N3135E13040
AREA: JAPAN
SUMMIT ELEV: 1060M
ADVISORY NR: 2011/447
INFO SOURCE: JMA
AVIATION COLOUR CODE: NIL
ERUPTION DETAILS: ERUPTED AT 20110707/1936Z FL060 EXTD N
OBS VA DTG: 07/1915Z
OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND FL060 200/30KT
FCST VA CLD +6 HR: NO VA EXP
FCST VA CLD +12 HR: NO VA EXP
FCST VA CLD +18 HR: NO VA EXP
RMK: WE WILL ISSUE FURTHER ADVISORY IF VA IS DETECTED IN SATELLITE IM
AGERY.
NXT ADVISORY: NO FURTHER ADVISORIES=

here is start time.

there is link to JMA

Sakurajima allert level is three and next level they start to evacuate. There was last huge erruption in 1914.