How did the 18 November 1929 earthquake cause the Newfoundland tsunami that devastated the Burin Peninsula? It triggered a submarine landslide. Approximately 2,200 people were killed in July 1998, when a tsunami struck Papua, New Guinea.
Which of the following were factors that contributed to the 18 November 1929 tsunami that affected Newfoundland Canada?
On November 18, 1929, at 017:02 Newfoundland time, an earthquake occurred of the coast of Grand Banks, Newfoundland. A tsunami was triggered by a sub-marine landslide and the earthquake, which had a Richter magnitude of 7.2 with an epicenter of 44.5°N, 56.3°W.
What kind of destruction can a tsunami cause?
In addition to loss of life and mass injuries, other potential impacts include damage to and destruction of homes and businesses, ports and harbors, cultural resources, utilities, and critical infrastructure and facilities. There may be loss of access to basic services such as power, sewer, and water.
Which of the following conditions is needed to generate a tsunami from an earthquake on the seafloor?
Usually, it takes an earthquake with a Richter magnitude exceeding 7.5 to produce a destructive tsunami.
Why didn t the coastal residents of Nicaragua feel the nearby earthquake that generated a devastating tsunami in 1992?
Why didn’t the coastal residents of Nicaragua feel the nearby earthquake that generated a devastating tsunami in 1992? The fault movement was unusually slow, generating mostly long-period seismic waves.
What caused the tsunami in Newfoundland?
The tsunami was produced by a large submarine landslide triggered by an earthquake on the Grand Banks that measured 7.2 on the Richter scale. The landslide displaced about 200 km3 of material down the continental slope. The effect on the ocean surface was a tsunami that radiated out from the epicentre.
What caused the tsunami in Newfoundland in 1929?
No one in the area had experienced an earthquake before, and although a few people understood what was happening, none imagined the tsunami that would follow. On the Grand Banks, the earthquake triggered a sizeable underwater landslide, which in turn forced a series of large waves across the ocean’s surface.
What are 3 causes of tsunami and explain its impact?
A tsunami is a series of enormous waves created by an underwater disturbance usually associated with earthquakes occurring below or near the ocean. Volcanic eruptions, submarine landslides, and coastal rock falls can also generate a tsunami, as can a large asteroid impacting the ocean.
How are tsunami formed how do they cause destruction?
A tsunami is a series of extremely long waves caused by a large and sudden displacement of the ocean, usually the result of an earthquake below or near the ocean floor. This force creates waves that radiate outward in all directions away from their source, sometimes crossing entire ocean basins.
What are two main causes of tsunami quizlet?
Terms in this set (5)
A tsunami is a long high sea wave caused by an earthquake, submarine landslide, or other disturbances.
How big of an earthquake does it take to cause a tsunami?
Magnitude 7.9 and greater
Destructive local tsunamis are possible near the epicenter, and significant sea level changes and damage might occur in a broader region. Note that with a magnitude 9.0 earthquake, there is a possibility of an aftershock of magnitude 7.5 or greater. Learn more: Tsunami and Earthquake Research.
What are the 4 main causes of tsunamis?
A tsunami is a series of enormous waves created by an underwater disturbance usually associated with earthquakes occurring below or near the ocean. Volcanic eruptions, submarine landslides, and coastal rock falls can also generate a tsunami, as can a large asteroid impacting the ocean.
What tsunamis were caused by earthquakes?
2004 Indian Ocean earthquake and tsunami — magnitude 9.1; 220,000 people died. 2005 Kashmir earthquake — magnitude 7.6, 73,000 people died. 2010 Haiti earthquake — magnitude 7.0, 220,000 people died. 2011 Japan earthquake and tsunami — magnitude 9.0, 20,000 people died.
What are the two provinces that are highly vulnerable to tsunami due to their being in between two nearby trenches?
The high vulnerability of Sulu and Tawi–tawi to tsunamis is attributed to the following factors: (i) their location between two nearby trenches (Sulu Trench and Cotabato Trench), and (ii) their high population densities.
What cities would be affected if there was a large earthquake at the Cascadia fault?
Called the Cascadia subduction zone, a big quake along this fault could affect the cities of Seattle, Tacoma, Portland, Eugene, Salem, and Olympia.
Why are earthquakes more destructive in poorer countries?
There is more damage and more deaths from earthquakes in other parts of the world primarily because of buildings which are poorly designed and constructed for earthquake regions, and population density.
Was there ever a tsunami in Newfoundland?
The full force of the tsunami struck the south coast of Newfoundland at about 1930 to 2000 NST after dark on November 18. Contrary to popular scientific belief the tsunami did not ar- rive during a storm; it was a dead calm moonlit night.
Can a tsunami hit Newfoundland?
Tsunami devastates the Burin Peninsula, Newfoundland.
Approximately 2 1/2 hours after the earthquake the tsunami struck the southern end of the Burin Peninsula in Newfoundland as three main pulses, causing local sea levels to rise between 2 and 7 metres.
What natural disasters happen in Newfoundland?
Geological Disasters in Newfoundland & Labrador
- Flooding, Hant’s Harbour, March 29, 2013.
- Flooding, Conception Bay South, March 30, 2013.
- Flooding, Holyrood, January 11, 2013.
- Earthquake, Labrador, July 8, 2012.
- Rockfall, Burin, April 12, 2012.
- Rockfall, Signal Hill, Winter, 2012.
- Avalanche, Tilt Cove, 1987.
Why did the Newfoundland colony fail?
Because emigrants leaving England were attracted to the mainland colonies rather than to Newfoundland, the population remained small and precarious, and investors eventually gave up.
When did the worst tsunami in recorded history occur where it hits the hardest?
Perhaps the most destructive tsunami in recorded history was the Indian Ocean Tsunami of 2004. A 9.1-magnitude earthquake occurred off the coast of Sumatra in Indonesia.