Severe flash floods hit Simangalumpe Village near Lake Toba in Indonesia’s North Sumatra province on the evening of December 1, 2023, following heavy rainfall. The village is located in Baktiraja District, Humbang Hasundutan Regency.
A high-level eruption started at Indonesia’s Marapi volcano at 08:00 UTC on December 3, 2023. The Aviation Color Code was raised to Red.
The Anak Krakatau volcano in Indonesia entered a period of intense eruptive activity around 05:28 UTC on November 26, 2023. The volcano has since produced numerous explosions, with ash columns reaching heights of up to 2.1 km (7 000 feet) above sea level. Officials are urging residents to stay away at least 5 km (3.1 miles) from the volcano.
A strong earthquake registered by the BMKG as M6.6 hit Halmahera, Indonesia at 02:48 UTC (09:48 LT) on November 22, 2023. The agency is reporting a depth of 109 km (67.7 miles). USGS and EMSC are reporting M6.0 at a depth of 119 km (73.9 miles).
A strong and shallow earthquake registered by the BMKG as M6.2 hit Banda Sea, Indonesia at 20:45 UTC on November 10, 2023 (03:45 LT, November 11), at a depth of 10 km (6.2 miles). The USGS is reporting M6.1 at a depth of 10.7 km (6.6 miles). This is most likely another aftershock of the M7.2 quake that hit the same region at 04:52 UTC on November 8.
A strong and shallow earthquake registered by the BMKG as M6.8 hit Banda Sea, Indonesia at 13:02 UTC on November 8, 2023, at a depth of 10 km (6.2 miles). This is most likely the aftershock of M7.2 quake that hit the same region at 04:52 UTC today.
A very strong earthquake registered by the BMKG as M7.2hit Banda Sea, Indonesia at 04:52 UTC (11:52 LT) on November 8, 2023, at a depth of 10 km (6.2 miles). The USGS registered M6.9 and M7.1 at 04:52 and 04:53 UTC, both at a depth of 10 km (6.2 miles).
A strong earthquake registered by the BMKG as M6.2 hit the Timor region, Indonesia at 21:04 UTC on November 1, 2023 at a depth of 45 km (28 miles). USGS is reporting M6.1 at a depth of 36 km (22 miles); EMSC M6.0 at a depth of 39 km (24 miles).
Seismic activity at Mount Anak Krakatau intensified on October 28, 2023, prompting Indonesian authorities to issue a 5 km (3.1 miles) exclusion zone around the main crater. The heightened activity included a range of earthquakes and internal vibrations indicative of potential eruptions.
A strong earthquake registered by the USGS as M6.0 hit Halmahera, Indonesia at 12:51 UTC on September 11, 2023. The agency is reporting a depth of 162.5 km (100.1 miles). EMSC is reporting M6.0 at a depth of 157 km (97.5 miles).
