Oct 2 1995, 9:00 am - Ruapehu Volcano

Situation Summary

As of 09:00 the situational status is:

• Volcano seismicity has remained near pre-eruption levels for most of the night. Some A-type (high frequency) volcanic earthquakes have been recorded near Dome on the summit. No discrete eruption-related earthquakes have been recorded since 01:00h 30 September.

• No reports of eruptive activity have been received. The last lahar producing event was the 08:40 event on 29 September (some 72 hours ago) and the last explosive eruption 01:00 30 September (57 hours ago). The longest quiescent period during the last week was about 23 hours from Monday evening to Tuesday evening.

• Should weather conditions become suitable we will be running observational and COSPEC flights. Other field parties will include seismic servicing, lahar deposits and ashfall groups.

Conclusions and Alert Status

The Alert Level for Ruapehu remains at Level 4 but will be reviewed as field party data becomes available today.

B.J. Scott (for C.J.N. Wilson)
Volcanology Programme Manager