Question

What is the relationship between volcanoes, earthquakes, and tsunamis in Asia? How do seismic events like earthquakes cause tsunamis?
in a paragraph

Answer 1

In Asia the close link among volcanoes, earthquakes and tsunamis stems from active plate boundaries—especially subduction zones around the Pacific “Ring of Fire” and the Indian Ocean margin—where oceanic plates dive under continental or other oceanic plates, generating frequent earthquakes and melting that fuels volcanoes. Large undersea or near-shore earthquakes on these faults can abruptly displace the seafloor and the overlying water column, launching long, fast-moving tsunami waves across ocean basins; the 2004 Sumatra–Andaman earthquake and tsunami and the 2011 Tōhoku quake–tsunami in Japan are dramatic examples. Volcanic activity can also produce tsunamis when eruptions, pyroclastic flows, or flank collapses rapidly push water, and submarine landslides triggered by quakes or eruptions can likewise create tsunamis. The size of a tsunami depends on the magnitude and geometry of the seafloor displacement, the water depth, and coastal bathymetry, which is why some seismic events produce devastating tsunamis while others do not.