Earthquake
An earthquake (also known as a quake, tremor or temblor) is the result of a sudden release of energy in the Earth's crust that creates seismic waves.
Tsunami
A tsunami also called a tsunami wave train, and at one time incorrectly referred to as a tidal wave, is a series of water waves caused by the displacement of a large volume of a body of water, usually an ocean, though it can occur in large lakes.
Tornado
A tornado (often referred to as a twister or, erroneously, a cyclone) is a violent, dangerous, rotating column of air that is in contact with both the surface of the earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud.
Floods
A flood is an overflow of an expanse of water that submerges land. The EU Floods directive defines a flood as a temporary covering by water of land not normally covered by water
Volcanic Eruptions
Volcanoes can cause widespread destruction and consequent disaster through several ways. The effects include the volcanic eruption itself that may cause harm following the explosion of the volcano or the fall of rock.
7.4 Earthquake Struck Alaska
10:37 PM
The first quake occurred at a depth of about 40 km. Soon after the second earthquake measuring 7.2 magnitude occurred in the same area with the same depth. This was conveyed by the U.S. Geological Survey agency.
"Tsunami warning currently enforced and includes coastal areas of Alaska started to Unimak Pass, Alaska (80 miles northeast of Dutch Harbor) to the Amchitka Pass, Alaska (125 miles west adak)," the statement by Alaska Tsunami Warning Center and West Coast as reported by Reuters on Friday (24/06/2011).
Mentioned that an earthquake with the strength of this magnitude is known to cause a tsunami. If a tsunami occurs, the first tsunami wave will reach Adak, Alaska on Thursday, June 23 at 20:12 local time.
With this tsunami warning means all coastal residents who entered the territory of a tsunami warning, which is near the beach or lowland areas should go immediately to higher ground and away from the harbor and bay.
