In the exclusive economic zone, the coastal State shall have the exclusive right to construct and to authorize and regulate the construction, operation and use of: (a) artificial islands; (b) installations and structures for the purposes provided for in article 56 and other economic purposes;
Infrasound may also be used for long-distance communication in African elephants. These calls range from 15â35 Hz and can be as loud as 117 dB, allowing communication for many kilometres, with a possible maximum range of around 10 km (6 mi).
Animals also react to infrasound. This may be one of the reasons theyâre so quick to react when a natural disaster is looming, such as an earthquake. In humans, infrasound can cause a number of strange, seemingly inexplicable effects: headaches, nausea, night terrors and sleep disorders.