Earthquakes
... Once a high, thick mountain belt that has undergone millions of years of erosion Thousands of metres of rock have been eroded (reducing the weight of the crust). Buoyant forces are pushing the ...
... Once a high, thick mountain belt that has undergone millions of years of erosion Thousands of metres of rock have been eroded (reducing the weight of the crust). Buoyant forces are pushing the ...
Global warming & its effects
... The low points in the oceans are called basins. Oceans are vital to life, as they control temperature, ...
... The low points in the oceans are called basins. Oceans are vital to life, as they control temperature, ...
Earthquakes and The Earth`s Interior - FAU
... • The 2010 Chilean earthquake occurred off the coast of the Maule Region of Chile on February 27, 2010 • The earthquake triggered a tsunami which devastated several coastal towns in south-central Chile and damaged the port at Talcahuano • Tsunami warnings were issued in 53 countries, causing minor d ...
... • The 2010 Chilean earthquake occurred off the coast of the Maule Region of Chile on February 27, 2010 • The earthquake triggered a tsunami which devastated several coastal towns in south-central Chile and damaged the port at Talcahuano • Tsunami warnings were issued in 53 countries, causing minor d ...
The 11.03.2011 Tohoku Earthquake, Japan - questions raised, lessons learned Japan-Malta Association
... • 6 seaports with major damage and Sendai airport extensively damaged – huge impact on international trade (about USD3.4 billion of trade loss per day) • 1232 roads damaged • 4000 schools damaged or destroyed • Many regional train lines suspended • Approx 25% of power loss in Tokyo district • About ...
... • 6 seaports with major damage and Sendai airport extensively damaged – huge impact on international trade (about USD3.4 billion of trade loss per day) • 1232 roads damaged • 4000 schools damaged or destroyed • Many regional train lines suspended • Approx 25% of power loss in Tokyo district • About ...
Earthquakes: Movement of the Earth`s Crust
... is called a fault. Faults look like large cracks in the ground. If the two plates move in different directions, they build up energy at the fault line. When enough energy builds up, the stress on the fault Earthquake damage in becomes too great and it ruptures. This releases the energy and the Washi ...
... is called a fault. Faults look like large cracks in the ground. If the two plates move in different directions, they build up energy at the fault line. When enough energy builds up, the stress on the fault Earthquake damage in becomes too great and it ruptures. This releases the energy and the Washi ...
Earthquakes
... • The 2004 Indian Ocean earthquake was an undersea megathrust earthquake that occurred at 00:58:53 on December 26, 2004, with an epicentre off the west coast of Sumatra, Indonesia. The quake itself is known by the scientific community as the Sumatra-Andaman earthquake. • The earthquake was caused ...
... • The 2004 Indian Ocean earthquake was an undersea megathrust earthquake that occurred at 00:58:53 on December 26, 2004, with an epicentre off the west coast of Sumatra, Indonesia. The quake itself is known by the scientific community as the Sumatra-Andaman earthquake. • The earthquake was caused ...
Seismology A shaky science
... Finding the Earthquakes Epicenter Using the differences in arrival time between the P-S wave (S-P interval), scientist can calculate the distance to the epicenter. Locating the epicenter- you will need three different seismic stations to locate the exact position of the epicenter. We call this tria ...
... Finding the Earthquakes Epicenter Using the differences in arrival time between the P-S wave (S-P interval), scientist can calculate the distance to the epicenter. Locating the epicenter- you will need three different seismic stations to locate the exact position of the epicenter. We call this tria ...
Deep vs. Shallow Water Waves
... Wind waves, with wavelengths up to ~100 meters, extend to ~50 m depth, have periods of seconds. Tsunami have wavelengths > 100 km, always extend to seafloor. In shallow water energy becomes concentrated between bottom and surface. Wave height increases up to 10x. Decreasing wave speed leads to decre ...
... Wind waves, with wavelengths up to ~100 meters, extend to ~50 m depth, have periods of seconds. Tsunami have wavelengths > 100 km, always extend to seafloor. In shallow water energy becomes concentrated between bottom and surface. Wave height increases up to 10x. Decreasing wave speed leads to decre ...
What is an Earthquake? Seismicity Faults and Earthquakes
... Thrust faulting raises the seabed; normal faulting drops it. This displaces all the overlying water (up or down). Resulting in a giant mound (or trough) on the sea surface. – This feature may be enormous (up to a 10,000 mi2 area). – The surface feature quickly collapses, creating waves that race rap ...
... Thrust faulting raises the seabed; normal faulting drops it. This displaces all the overlying water (up or down). Resulting in a giant mound (or trough) on the sea surface. – This feature may be enormous (up to a 10,000 mi2 area). – The surface feature quickly collapses, creating waves that race rap ...
EARTH: natural disasters
... Later, the quake’s magnitude was upgraded to 9.0. The earthquake’s epicenter, or point of origin, was just 130 km (80 mi) off Japan’s coast. People had very little time to react as vibrations spread out through the earth from where the fault first ruptured and waves followed through the water. The t ...
... Later, the quake’s magnitude was upgraded to 9.0. The earthquake’s epicenter, or point of origin, was just 130 km (80 mi) off Japan’s coast. People had very little time to react as vibrations spread out through the earth from where the fault first ruptured and waves followed through the water. The t ...
Tsunami background reading
... A tsunami is a huge slow wave when in the middle of the deep ocean ...
... A tsunami is a huge slow wave when in the middle of the deep ocean ...
California has a variety of hazards
... Uplifted Areas with Weak Rocks Landslides Landslides can happen in many places in California The more hazardous areas are up north – Why? ...
... Uplifted Areas with Weak Rocks Landslides Landslides can happen in many places in California The more hazardous areas are up north – Why? ...
EARTHQUAKES
... Developed by Charles Richter in the 1940’s Measures the amount of energy released by the earthquake itself Scale from 1-10 (weakest - strongest) Each number is 32 times stronger than the next lower number (Ex: ‘6’ is 32 times stronger than a ‘5’ and 1024 times stronger than a ‘4’) ...
... Developed by Charles Richter in the 1940’s Measures the amount of energy released by the earthquake itself Scale from 1-10 (weakest - strongest) Each number is 32 times stronger than the next lower number (Ex: ‘6’ is 32 times stronger than a ‘5’ and 1024 times stronger than a ‘4’) ...
Kenji Satake Affiliation: Earthquake Research Institute The
... Bueau Member of International Union of Geodesy and Geophysics In the last three years since 2011, I served as a burean member of IUGG, and atteneded bureau meetings in 2012 (Lauterbad), 2013 (Prague) and 2014 (Baku), as well as participated numerous e-mail communications, to review and discuss curre ...
... Bueau Member of International Union of Geodesy and Geophysics In the last three years since 2011, I served as a burean member of IUGG, and atteneded bureau meetings in 2012 (Lauterbad), 2013 (Prague) and 2014 (Baku), as well as participated numerous e-mail communications, to review and discuss curre ...
tsunamis - Cairns Regional Council
... normally dry land areas. If you click on the animations below you can see how the motion of a wind swell wave differs from that of a tsunami. Tsunamis have extremely long wavelengths, up to hundreds of kilometres, even as they reach shallow coastal water. The second and third waves can arrive 10 min ...
... normally dry land areas. If you click on the animations below you can see how the motion of a wind swell wave differs from that of a tsunami. Tsunamis have extremely long wavelengths, up to hundreds of kilometres, even as they reach shallow coastal water. The second and third waves can arrive 10 min ...
Earthquakes
... Earthquakes occur when rock masses in the Earth’s crust move suddenly along ruptures called faults. The rock movement may occur vertically, horizontally or in combination. ...
... Earthquakes occur when rock masses in the Earth’s crust move suddenly along ruptures called faults. The rock movement may occur vertically, horizontally or in combination. ...
What are waves? - the National Sea Grant Library
... interacts with the shallow bottom. Because of their long wave lengths tsunamis rarely break along the coast. Instead the water runs up along the shore similar to the tide. In some cases where the coast is close to the center of the earthquake the water surge associated with a tsunami can reach eleva ...
... interacts with the shallow bottom. Because of their long wave lengths tsunamis rarely break along the coast. Instead the water runs up along the shore similar to the tide. In some cases where the coast is close to the center of the earthquake the water surge associated with a tsunami can reach eleva ...
Earthquakes - Pitt County Schools
... • So far, ________________ for short-__________________ predictions of earthquakes have not been ___________________. ________________-Range Forecasts • Scientists don’t yet understand enough about how and where __________________ will occur to make ___________________ long-term __________________ ...
... • So far, ________________ for short-__________________ predictions of earthquakes have not been ___________________. ________________-Range Forecasts • Scientists don’t yet understand enough about how and where __________________ will occur to make ___________________ long-term __________________ ...
Document
... an earthquake; independent of intensity – Amplitude of the largest wave produced by an event is corrected for distance and assigned a value on an open-ended logarithmic scale ...
... an earthquake; independent of intensity – Amplitude of the largest wave produced by an event is corrected for distance and assigned a value on an open-ended logarithmic scale ...
Earthquake Resistant Buildings
... 4.Methods to Reduce the Impacts of Earthquakes . 5.Conclusion . ...
... 4.Methods to Reduce the Impacts of Earthquakes . 5.Conclusion . ...
Unit: Dynamic Earth - Science Teacher Tom
... Do Now: Draw diagrams representing the movement along the 3 types of plate boundaries along with the associated features seen on Earth’s crust. Make sure to include continental-continental, oceanic-oceanic, and continental-oceanic interactions for all 3 types of plate boundaries. AIM: What are the c ...
... Do Now: Draw diagrams representing the movement along the 3 types of plate boundaries along with the associated features seen on Earth’s crust. Make sure to include continental-continental, oceanic-oceanic, and continental-oceanic interactions for all 3 types of plate boundaries. AIM: What are the c ...
Tsunami
A tsunami (plural: tsunamis or tsunami; from Japanese: 津波, lit. ""harbor wave"";English pronunciation: /tsuːˈnɑːmi/), also known as a seismic sea wave, is a series of waves in a water body caused by the displacement of a large volume of water, generally in an ocean or a large lake. Earthquakes, volcanic eruptions and other underwater explosions (including detonations of underwater nuclear devices), landslides, glacier calvings, meteorite impacts and other disturbances above or below water all have the potential to generate a tsunami. In being generated by the displacement of water, a tsunami contrasts both with a normal ocean wave generated by wind and with tides, which are generated by the gravitational pull of the Moon and the Sun on bodies of water.Tsunami waves do not resemble normal sea waves, because their wavelength is far longer. Rather than appearing as a breaking wave, a tsunami may instead initially resemble a rapidly rising tide, and for this reason they are often referred to as tidal waves, although this usage is not favored by the scientific community because tsunamis are not tidal in nature. Tsunamis generally consist of a series of waves with periods ranging from minutes to hours, arriving in a so-called ""wave train"". Wave heights of tens of meters can be generated by large events. Although the impact of tsunamis is limited to coastal areas, their destructive power can be enormous and they can affect entire ocean basins; the 2004 Indian Ocean tsunami was among the deadliest natural disasters in human history with at least 230,000 people killed or missing in 14 countries bordering the Indian Ocean.The Greek historian Thucydides suggested in his late-5th century BC History of the Peloponnesian War, that tsunamis were related to submarine earthquakes, but the understanding of a tsunami's nature remained slim until the 20th century and much remains unknown. Major areas of current research include trying to determine why some large earthquakes do not generate tsunamis while other smaller ones do; trying to accurately forecast the passage of tsunamis across the oceans; and also to forecast how tsunami waves would interact with specific shorelines.