The terrible earthquake in Chile in February 2010 caused a tsunami in the Pacific which hit Pitcairn Island on the morning of 27th February.
Fortunately the islanders had plenty of warning and no damage was caused.
I have animated the two pictures shown here from those posted to "CNN iReport" by Mike Warren, mayor of Pitcairn. There is a link to the CNN page here.
Thank you to Barbara Kuchau on the Friends of Pitcairn website for the CNN link.