This popular beach is situated on the southeast corner of Rarotonga and is protected by a lagoon.
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The latest observations are from a RNZAF flight on 31 October and
allowed us to confirm that our interpretation of the data from the Rarotonga seismograph is correct, and Monowai has been erupting.
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Over the last few years we
have learned to recognise the T-waves recorded in Rarotonga, and, with the help of observations from the RNZAF,
commercial pilots and shipping, we are now reasonably confident we can identify when Monowai is erupting.