On 6/20/2026 6:43:17 AM, an earthquake occurred in St. Helena potentially affecting Few people affected in MMI III. The earthquake had Magnitude 5.5M, Depth:10km.
Dukono Volcano Volcanic Ash Advisory: VA TO FL070 OBS AT 20/0420Z EXT NE EST VA DTG: 20/0420Z to 7000 ft (2100 m)
Satellite image of Dukono volcano on 20 Jun 2026
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 7000 ft (2100 m) altitude or flight level 070 and is moving at 15 kts in NE direction.
The full report is as follows:
FVAU01 at 04:44 UTC, 20/06/26 from ADRM
VA ADVISORY
DTG: 20260620/0440Z
VAAC: DARWIN
VOLCANO: DUKONO 268010
PSN: N0142 E12754
AREA: INDONESIA
SOURCE ELEV: 1229M AMSL
ADVISORY NR: 2026/398
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA TO FL070 OBS AT 20/0420Z EXT NE
EST VA DTG: 20/0420Z
EST VA CLD: SFC/FL070 N0138 E12752 – N0146 E12749 – N0235
E12850 – N0204 E12911 MOV NE 15KT
FCST VA CLD +6 HR: 20/1020Z SFC/FL070 N0137 E12752 – N0145
E12748 – N0234 E12842 – N0200 E12906
FCST VA CLD +12 HR: 20/1620Z SFC/FL070 N0137 E12752 – N0143
E12748 – N0217 E12813 – N0239 E12840 – N0209 E12903
FCST VA CLD +18 HR: 20/2220Z SFC/FL070 N0138 E12752 – N0143
E12746 – N0240 E12820 – N0216 E12847
RMK: VA IDENTIFIABLE ON LATEST SATELLITE IMAGERY MOVING NE
BUT PARTIALLY OBSCURED BY MET CLOUD. EMISSIONS EXPECTED TO
BE ONGOING. VA HEIGHT AND MOVEMENT BASED ON SATELLITE
IMAGERY, GROUND REPORTS AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260620/1040Z=
Green earthquake (Magnitude 5.8M, Depth:35km) in Russia 20/06/2026 03:49 UTC, 250 thousand in MMI>=III.
Green earthquake (Magnitude 5.7M, Depth:10km) in West Of Macquarie Island 20/06/2026 01:46 UTC, [unknown].
Lewotobi Volcano Volcanic Ash Advisory: VA ERUPTION LAST REPORTED AT 19/1254Z EST VA DTG: 19/2250Z
Volcanic Ash Advisory Center Darwin (VAAC) issued the following report:
FVAU05 at 23:11 UTC, 19/06/26 from ADRM
VA ADVISORY
DTG: 20260619/2308Z
VAAC: DARWIN
VOLCANO: LEWOTOBI 264180
PSN: S0833 E12246
AREA: INDONESIA
SOURCE ELEV: 1703M AMSL
ADVISORY NR: 2026/146
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA ERUPTION LAST REPORTED AT 19/1254Z
EST VA DTG: 19/2250Z
EST VA CLD: SFC/FL090 S0846 E12244 – S0845 E12216 – S0824
E12205 – S0814 E12223 – S0817 E12252 – S0833 E12301 MOV NW
05KT
FCST VA CLD +6 HR: 20/0450Z SFC/FL090 S0824 E12251 – S0834
E12304 – S0847 E12259 – S0851 E12216 – S0820 E12220
FCST VA CLD +12 HR: 20/1050Z SFC/FL090 S0835 E12257 – S0857
E12217 – S0843 E12204 – S0824 E12212 – S0814 E12225 – S0824
E12253
FCST VA CLD +18 HR: 20/1650Z SFC/FL090 S0834 E12300 – S0857
E12220 – S0825 E12205 – S0812 E12223 – S0820 E12254
RMK: VA NOT IDENTIFIABLE ON SATELLITE IMAGERY DUE TO
DARKNESS. INTERMITTENT VA ERUPTIONS EXPECTED TO BE ONGOING.
VA HEIGHT AND MOVEMENT BASED ON PAST SATELLITE IMAGERY,
GROUND REPORTS AND MODEL GUIDANCE. LOW CONFIDENCE IN
FORECAST DUE TO VARIABLE WINDS.
NXT ADVISORY: NO LATER THAN 20260620/0508Z=