22. Why might that type of boundary produce more strong earthquakes than the bou

Question

22. Why might that type of boundary produce more strong earthquakes than the boundary along the coast of California? 23. Notice that divergent boundaries appear to have the fewest earthquakes. What might be an explanation for this? 24. In the United States, where d° frequent earthquakes occur that are not close to a plate boundary, and what might cause them? 25. Why are there many earthquakes on the Big Island of Hawaii? Eurasian plate Eurasian plate North American plate Juan de Fuca plate San Andreas Faut plate African plate Pecific plate plate Nazca South American plate Indian Convergent boundary Divergent boundary Scotia plate

Explanation / Answer

22. The San Andreas Fault is a continental transform fault between the Pacific Plate and the North American Plate through California. So, Subduction zone or convergent plate boundary may produce more strong earthquake than the boundary (continental transform fault ) along the coast of California.

23. Divergent boundaries are those at which crustal plates move away from each other, such as at midoceanic ridges. The formation of new ocean crust that is pushed away from both sides of the ridge fault creates a tensional setting. Results in it forms the graben. The earthquakes in the divergent plate boundary are shallow focus and released less energy due to lack of collision than the collisional earthquake in the Oceanic trenches or convergent plate boundary.

24. The most earthquake occured in South America. Because most of the subduction zone or convergent plate boundary is present along the coast of South America. Subduction zone is narrow, deep troughs that mark where two plates converge. Along the subduction zone volcanisms typically occur and earthquakes originate in Benioff zones which are associated with the subduction of a crustal plate below an adjacent plate

25. The hot spot below the Hawaiian islands and the volcanic activity caused by it causes enough stress in the earth’s crust to make Hawaii a very active seismic region. Because during lava and gas eruption, a enormous pressure has been created due to the weight of the volcanoes and pressure from lava inside the volcanoes.

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