Aotearoa Earthquake and Volcano Forecast Service

Pacific Summary. 17 December 2023 - 22 December 2023

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The 18 December eruption at Reykjanes Peninsula came with the arrival of Kp6 geomagnetic storm.
Uplift at Svartsengi had reached the same point as the 10 December uplift and rifting/subsidence episode.
The volcano was primed to rift again or erupt with new spaceweather.
A 3.5 km long fissure with much more lava than nearby Fagradalsfjall 2021 broke out just north of Grindavik with 100 meter high fountains.
The eruption ended on 22 December.
Pacific volcanos and quakes were otherwise underwhelming with poor location success.
A new forecast period is due to begin 23 December with the arrival of a coronal hole windstream from CH1194.
18 December.
Eruption N. Grindavik 2200 UTC.
19 December.
Central China 5.9 4.59am
21 December.
200km SE Nazca, Peru 6.2 1.11am
22 December.
Aleutians/S. Adak Island 6.1 3.55am

Forecast 17-20 December 2023.
Magnitude 6 risk locations are Neiafu, Hunter Island, Maewo, Espiritu Santo, Bismarck Sea, Mentawai, Northern Marianas Islands, Offshore Hokkaido, Valdivia.
Volcanic activity may increase. Krakatau, Marapi, Aoba, Kilauea, Reykjanes, Etna.