Possible Eruption Reported at New Zealand's Tongariro

The webicorder trace for Tongariro in New Zealand showing a potential explosion (near bottom) at the volcano. Image courtesy of GNS Science. I just saw this come across Twitter but there are reports of ash fall near Tongariro in New Zealand (apparently upwards of 5 cm[!] on state highway 46, north of the volcano) along with an unconfirmed report of "red/orange glow" from the Te Mari Crater. The Desert Road near Tongariro has also now been closed, which suggests an eruption (or hydrothermal explosion) has occurred and rescue teams are headed up to hikers' huts to make sure no one is trapped near the volcano. GNS Science has raised the alert status to Level 2 after these reports. I'm trying to find some more information so we can confirm this, but the webicorders for Tongariro show what could be an explosion signal (see above). Sadly, there isn't much of a ...