earthquake caused
how are earthquakes made?
when the stress on the edge overcomes the friction, there is an earthquake that releases energy in waves that travel through the earth's crust and cause the shaking that we feel.
what is the definition of earthquake?
A sudden and violent shaking of the ground, sometimes causing great destruction, as a result of movements within the earth's crust or volcanic action.
What happen in chile 22 may 1960?
This earthquake killed 1655 people, injured 3000 and displaced two million. It caused US$550 million damage in chile, while tsunami that it spawned caused deaths and damage as far away as Hawaii, Japan and the Philippines.
when there is a earthquake what do you do?
Stay away from outer walls, windows, fireplaces, and hanging objects.
what is the definition of tsunamis?
a long high sea wave caused by an earthquake, submarine landslide, or other disturbance.
how do earthquakes make tsunamis?
sudden vertical displacement of the ocean floor.
what is the definition of Mercalli scale?
A scale of earthquake intensity ranging from I for an earthquake detected only by seismographs to xll for one causing total destruction of all buildings.
what happned in alaska mrach 28 1964?
Compared to the chilean earthquake, this earthquake was leess damaging: the resulting tsunami took 128 lives and caused overall US$311 million in damage. The earthquake was felt mainly over alaska, as well in some places in Canada, while the tsunami created by it caused as far away as Hawaii. The most damage was stustained by the city of Anchorage, 120 km northwest of the epicenter. Shaking from the quake it self is reported to have lasted for three minutes.
what happens when a earthquake starts a fire what should you do?
Check around you for dangerous conditions, such as fires, downed power lines and structure damage. If you have fire extinguishers and are trained to use them, put out small fires immediately. Turn off the gas only if you smell gas.
what is the definition landslides?
A landslide is defined as the movement of a mass of rock, debris, or earth down a slope. Landslides are a type of "mass wasting," which denotes any down-slope movement of soil and rock under the direct influence of gravity.
how do earthquakes make landslides?
ground shaking greatly increases the likelihood of landslides where landscape is susceptible to these types of ground failure.
What is the definition of richter scale?
A numerical scale for expressing the magnitude of an earthquake on the basis of seismograph oscillations. The most destructive earthquakes typically have magnitudes between about 5.5 and 8.9; the scale is logarithmic and a difference of one respents an approximate thirtyfold difference in magnitude.
what happened in Indonesia 26 december 2004?
In terms of damage and loss of life, the scale of the disaster caused by the resulting Boxing Day Tsunami was enormous. In total, 227,900 people were killed or presumed dead, with around 1.7 million displaced over 14 countries in South Asia and East Africa. The epicentre was 250 km south-east of Band Aceh, Indonesia, at a depth of 30 km. Several days later on 28 December, a mud volcano began erupting near Baratang, Andamar Islands, which is thought to have been associated with the earthquake.
what is one way to survive a earthquake?
DROP down onto your hands and knees before the earthquake knocks you down?
features of an earthquake?
Earthquakes often cause dramatic geomorphological changes, including ground movements—either vertical or horizontal—along geologic fault traces; rising, dropping, and tilting of the ground surface; changes in the flow of groundwater; liquefaction of sandy ground; landslides; and mudflows.
how do earthquakes make the ground shake?
when a rupture, seismic waves are propagated in all directions, causing the ground to vibrate at frequencies ranging from about 0.1 to 30 hertz.
What is the definition of faults?
A fracture or zone of fractures between two blocks of rock.
Japan 11 March 2011
So far the official death toll stands at several thousand from the combined effect of the powerful earthquake, aftershocks and the tsunami. However, the total is expected to rise, with some estimates of a final toll of over 10,000. Economic impacts are expected to be huge, with the shutting down of nuclear reactors which many industries rely on for power.
what is another way to survive a earthquake?
COVER your head and neck (and your entire body if possible) underneath a sturdy table or desk.
what are the locations of earthquakes?
The world's greatest earthquake belt, the circum-Pacific seismic belt, is found along the rim of the Pacific Ocean, where about 81 percent of our planet's largest earthquakes occur.
how do earthquakes cause fires?
Fires from earthquakes are caused because of the movement and breaking of electrical and gas lines within a structure
what is the defition of transform boundaries?
Transform boundaries are places where plates slide sideways past each other. At transform boundaries lithosphere is neither created nor destroyed. Many transform boundaries are found on the sea floor, where they connect segments of diverging mid-ocean ridges. California's San Andreas fault is a transform boundary.
Russia 4 November 1952
This earthquake generated a tsunami that caused widespread damage in the Hawaiian Islands. Property damage was estimated at around US$1,000,000. Some reports describe waves of over 9 m high at Kaena Point, Oahu. A farmer on Oahu reported the loss of six cows to the tsunami, but no people were reported killed.
what is one more way to survive a earthquake?
HOLD ON to your shelter (or to your head and neck) until the shaking stops.
what is the impact on the surronding areas for earthquakes?
A variety of structures have been damaged by surface faulting, including houses, apartments, commercial buildings, nursing homes, railroads, highways, tunnels, bridges, canals, storm drains, water wells, and water, gas, and sewer lines. Damage to these types of structures has ranged from minor to very severe.