Rip currents are the cause of an average 21 confirmed human fatalities per year, compared with 5.9 for bushfires, 4.3 for floods, 7.5 for cyclones and 1 for sharks.
"Rips account for greater overall loss of human life than other high profile natural hazards. Yet they do not get anywhere near as much attention and dedicated funding," says Dr Rob Brander, a coastal geomorphologist at UNSW, and lead author of the study.
The study is published in the journal Natural Hazards and Earth Science Systems.
Australia has about 11,000 mainland beaches with an estimated 17,500 rip currents operating at any given time. Rip currents are strong, narrow seaward-flowing currents that can easily carry unsuspecting swimmers significant distances offshore, leading to exhaustion, panic and often drowning.
An analysis of data from Australia's National Coronial Information System shows there was an average 21 confirmed deaths involving rips per year during the period 2004 to 2011.
"And this is likely to be an underestimate because there has to be a witness to an event who saw the person was caught in a rip, and then this information has to be included in the coronial report," says Dr Brander, a co-author on the study which was published earlier this year and led by researchers from Surf Life Saving Australia.
For the new study Dr Brander's team used information from the Australian Emergency Management Institute National Disaster Database to identify the average number of deaths per year caused by tropical cyclones, bushfires and floods since the mid-to-late 1800s.
In addition, the Australian Shark Attack File administered by Taronga Zoo in Sydney shows there has been an average of one death a year since 1962.
"Other types of hazards, like bushfires, have the capacity to claim large numbers of lives in a single event. On the other hand, rip currents are almost always present and rarely result in more than one death at a time. But in the end, more people die as a result of them," says Dr Brander.
"As rip current are a global problem, it is hoped that this study can be applied in other countries to more appropriately place the rip current hazard in perspective with and context of other natural hazard types."
Media contacts:Dr Rob Brander
Deborah Smith | EurekAlert!
Rutgers-led innovation could spur faster, cheaper, nano-based manufacturing
14.02.2018 | Rutgers University
New study from the University of Halle: How climate change alters plant growth
12.01.2018 | Martin-Luther-Universität Halle-Wittenberg
For the first time, an interdisciplinary team from the University of Basel has succeeded in integrating artificial organelles into the cells of live zebrafish embryos. This innovative approach using artificial organelles as cellular implants offers new potential in treating a range of diseases, as the authors report in an article published in Nature Communications.
In the cells of higher organisms, organelles such as the nucleus or mitochondria perform a range of complex functions necessary for life. In the networks of...
Animal photoreceptors capture light with photopigments. Researchers from the University of Göttingen have now discovered that these photopigments fulfill an...
On 15 March, the AWI research aeroplane Polar 5 will depart for Greenland. Concentrating on the furthest northeast region of the island, an international team...
The world’s second-largest ice shelf was the destination for a Polarstern expedition that ended in Punta Arenas, Chile on 14th March 2018. Oceanographers from...
At the 2018 ILA Berlin Air Show from April 25–29, the Fraunhofer Institute for Laser Technology ILT is showcasing extreme high-speed Laser Material Deposition (EHLA): A video documents how for metal components that are highly loaded, EHLA has already proved itself as an alternative to hard chrome plating, which is now allowed only under special conditions.
When the EU restricted the use of hexavalent chromium compounds to special applications requiring authorization, the move prompted a rethink in the surface...
19.03.2018 | Event News
16.03.2018 | Event News
13.03.2018 | Event News
19.03.2018 | Physics and Astronomy
19.03.2018 | Materials Sciences
19.03.2018 | Event News