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Geologic Hazards
![]() USGS: Latest Earthquakes |
![]() Smithsonian Global Volcanism Program |
![]() National Hurricane Center |
![]() Live Lightning Maps |
![]() Global Subsidence Map |
Largest Hurricanes

Largest Hurricanes Are they determined by wind speed, value of damage, most deaths?
Lightning Hotspot

World Record Lightning - This lake has more lightning than any other place in the world.
Volcanic Explosivity

Volcanic Explosivity Rating volcanic eruptions based upon the volume of tephra ejected.
Geology Dictionary

Geology Dictionary - contains thousands of geological terms with their definitions.
Lightning Strikes Map

Lightning Strikes Map - shows the worldwide distribution of lightning activity.
Atlantic Tsunamis

Atlantic Tsunamis Rare events that can cause damage and threaten millions of people.
Rock Fall Photos

Yosemite Rock Fall Photos A photo sequence of a rockfall and debris avalanche by Herb Dunn.
Pacific Tsunamis

Pacific Tsunamis This ocean is surrounded by plate boundaries, that can produce tsunami.