News & activity updates:
Bromo Volcano Volcanic Ash Advisory: VA TO FL100 LAST OBS EXT E AT 10/0050Z EST VA DTG: 10/1300Z to 10000 ft (3000 m)
The full report is as follows:
FVAU02 at 12:58 UTC, 10/04/19 from ADRM
VOLCANO: TENGGER CALDERA 263310
PSN: S0757 E11257
SUMMIT ELEV: 2329M
ADVISORY NR: 2019/91
INFO SOURCE: HIMAWARI-8
AVIATION COLOUR CODE: ORANGE
ERUPTION DETAILS: VA TO FL100 LAST OBS EXT E AT 10/0050Z
EST VA DTG: 10/1300Z
EST VA CLD: SFC/FL100 S0749 E11252 - S0800 E11240 - S0814
E11250 - S0807 E11310 - S0753 E11307 MOV SE 5KT
FCST VA CLD +6 HR: 10/1900Z SFC/FL100 S0748 E11304 - S0803
E11308 - S0812 E11251 - S0800 E11239 - S0746 E11246
FCST VA CLD +12 HR: 11/0100Z SFC/FL100 S0748 E11258 - S0754
E11245 - S0808 E11243 - S0812 E11302 - S0758 E11308
FCST VA CLD +18 HR: 11/0700Z SFC/FL100 S0750 E11305 - S0804
E11308 - S0813 E11257 - S0805 E11241 - S0751 E11249
RMK: VA CURRENTLY UNIDENTIFIABLE ON SATELLITE IMAGERY DUE TO
MET CLOUD OBSCURATION. ERUPTION CONFIRMED ONGOING ON WEBCAM.
HEIGHT AND MOVEMENT BASED ON HIMAWARI-8, SURABAYA 10/0000Z
SOUNDING AND MODEL GUIDANCE. LOW CONFIDENCE IN FCST DUE TO
LIGHT AND VRB WINDS.
NXT ADVISORY: NO LATER THAN 20190410/1900Z
Gunung Bromo (Mount Bromo) volcano is a small, but active volcanic cinder cone on the Indonesian island of Java. Bromo is located in the center of the Sandsea Caldera, itself only a portion of the larger Tengger Caldera. The Sandsea caldera formed around 8,000 years ago, in what must have been a massive eruption. Subsequent volcanic activity formed the cluster of cinder cones in the caldera’s center, including Bromo.
The historical record indicates eruptions of Bromo every few years since 1804, and geologic evidence indicates eruptions at least several hundred years earlier. The most recent eruption occured in 2004, and tragically killed two tourists.
The image above shows most of the Sandsea Caldera, along with Gunung Bromo and the older volcanoes on the caldera floor. A small plume of steam is visible rising out of Mt. Bromo. Space Imaging’s IKONOS satellite, capable of 4-meter per-pixel color imagery, and 1-meter per-pixel resolution panchromatic imagery, acquired the data on July 8, 2001.