Question

safe? 2. How do the following occur? Earthquake a. b. Volcanic eruption c. Tsunami Hea mar​

Answer 1

Answer:

Explanation:

Although relatively infrequent, violent volcanic eruptions represent also impulsive disturbances, which can displace a great volume of water and generate extremely destructive tsunami waves in the immediate source area. According to this mechanism, waves may be generated by the sudden displacement of water caused by a volcanic explosion, by a volcano's slope failure, or more likely by a phreatomagmatic explosion and collapse/engulfment of the volcanic magmatic chambers. One of the largest and most destructive tsunamis ever recorded was generated in August 26, 1883 after the explosion and collapse of the volcano of Krakatoa (Krakatau), in Indonesia. This explosion generated waves that reached 135 feet, destroyed coastal towns and villages along the Sunda Strait in both the islands of Java and Sumatra, killing 36,417 people. It is also believed that the destruction of the Minoan civilization in Greece was caused in 1490 B.C. by the explosion/collapse of the volcano of Santorin in the Aegean Sea.

Answer 2

Answer:-

1. An earthquake is caused by a sudden slip on a fault. 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.
2. Volcanoes erupt when molten rock called magma rises to the surface. Magma is lighter than rock so rises towards the Earth's surface. As the magma rises, bubbles of gas form inside it. Runny magma erupts through openings or vents in the Earth's crust before flowing onto its surface as lava.
3. Most tsunamis are caused by earthquakes on converging tectonic plate boundaries. However, tsunamis can also be caused by landslides, volcanic activity, certain types of weather, and possibly near earth objects (e.g., asteriods, comets) colliding with or exploding above the ocean.