Asia
Afrika
Eropah
lain
Amerika Utara
Amerika Selatan
Australia
pulau hawaii, mid-Atlantik ridge
China, India, Indonesia, Japan, North Korea, Russia, Saudi Arabia, Singapore, South Korea, Sri Lanka, Tajikistan, Thailand
Egypt, Ethiopia, Ghana, South Africa, Western Africa
Austria, England, Finland, France, Germany, Greece, Spain, Sweden, Switzerland, United Kingdom
Central Australia, New Zealand, Queensland