A 2005 report for DEFRA, conducted following the 2004 Boxing Day Tsunami, found that, discounting 'exotic events such as meteorite impacts', 'in most plausible circumstances it is likely that such an event would be contained by current defences, designed to resist storm surges, for all major developed areas', however the joint occurrence of events, such as a tsunami coinciding with a storm surge, was discounted. The report did, however call for additional more detailed modelling to be carried out, recommended that the Met Office should provide a tsunami warning service, and that detection devices should be upgraded. A follow-up report indicated that, of the three likely scenarios modelled, a Lisbon-type event would pose the greatest danger, potentially resulting in a tsunami wave exceeding the 1:100-year extreme sea level at the Cornish peninsula by up to 1.4m, but being within the range elsewhere. This conclusion is markedly different from the greater heights calculated by Bryant and Haslett as having been encountered in the Bristol Channel during the 1607 Bristol Channel floods.