The Weekly Volcanic Activity Report: January 4 – 10, 2023
New activity/unrest was reported for 5 volcanoes from January 4 to 10, 2023. During the same period, ongoing activity was reported for 19 volcanoes.
The greatest concentration of lightning ever recorded
The Hunga Tonga-Hunga Ha’apai volcano eruption on January 15, 2022, has set a new record for the greatest concentration of lightning ever detected. According to data from Vaisala’s Global Lightning Dataset GLD360, nearly 400 000 lightning events were detected within just six hours of the eruption, making it a truly exceptional phenomenon.
Eruption at Marapi volcano forces evacuation of 164 climbers, Indonesia
Indonesia’s Marapi volcano started erupting at around 23:00 UTC on January 6, 2023, resulting in a column of thick gray ash rising about 300 m (960 feet) above the peak or around 3.2 km (10 200 feet) a.s.l. The Aviation Color Code was raised to Orange. The Alert Level is at Level II (WASPADA) since August 3, 2011.
Eruption resumes at Kilauea volcano, Aviation Color Code raised to Red, Hawaii
The eruption at Kīlauea volcano in Hawaii resumed at approximately 02:34 UTC on January 6, 2023, after nearly a month of pause.
The Weekly Volcanic Activity Report: December 28 – January 3, 2023
New activity/unrest was reported for 2 volcanoes from December 28 to January 3, 2023. During the same period, ongoing activity was reported for 17 volcanoes.
New eruption at Anak Krakatau, Indonesia
A new small eruption took place at Anak Krakatau volcano, Indonesia at 09:38 UTC (16:38 LT) on January 3, 2022.
Effusive eruption at Etna volcano, Italy
Effusive eruption with active lava flow continues at Etna volcano, Italy since November 27, 2022.
Lava dome growing at Sheveluch volcano, Russia
Lava dome at Sheveluch volcano, Russia continues growing, KVERT reported on January 2, 2023.
Increased seismicity under Ollagüe volcano, Chile-Bolivia border region
Monitoring stations installed in the vicinity of the massive Ollagüe stratovolcano in the Andes, on the border between Bolivia and Chile, detected increased seismicity under the volcano on January 2, 2023.
The Weekly Volcanic Activity Report: December 21 – 27, 2022
New activity/unrest was reported for 2 volcanoes from December 21 to 27, 2022. During the same period, ongoing activity was reported for 16 volcanoes.
