The volcanic alert level remained at level 1, indicating a departure from typical background surface activity, while the aviation color code warning for aircraft remained at yellow, indicating signs of elevated unrest.
Although no further eruptions had occurred at neighboring Mount Tongariro since the explosion last month, gas emissions remained similar to those measured over the last few months, and there had been a handful of small earthquakes under the Te Maari crater area, according to GNS Science.
"It is now a week and a half since the eruption on Nov. 21 and we are continuing to monitor the volcano very closely. Over the weekend, we detected four earthquakes less than magnitude 2 on our seismic networks, at a few kilometers depth under the active vents, " GNS Science volcanologist Brad Scott said in a statement.
Over the next week, the scenario considered most likely was that there would be no eruptions, but explosions could occur with little or no warning, he said.
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