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The passage states that the Sunda Megathrust Fault was storing energy that would result in a massive undersea earthquake. What does massive mean?
According to the passage, what did scientists learn after examining samples of coral?
The rings of coral represent how many earthquakes have happened during its lifetime.
Islands on top of a continental plate were rising each year.
Major earthquakes occurred about every 200 years.
Some tsunamis can be up to 100 feet tall.
What evidence from the passage supports the fact that Tello Island was sinking?
People started building their houses out of lightweight wood.
Many islanders have moved away from the shore.
Pathways were built to higher ground.
Wells were full of salty seawater.
According to the passage, what is the relationship between underwater earthquakes and tsunamis?
Tsunamis cause underwater earthquakes.
Tsunamis form as a result of underwater earthquakes.
The size of tsunamis determines the severity of underwater earthquakes.
The season will affect whether a tsunami will develop after an underwater earthquake.
Which sentence best summarizes the passage?
Scientists study earthquakes and tsunamis, and then they educate people about them.
Sieh warned teachers and students in Indonesia that an underwater earthquake would strike within months.
The oceanic and continental plates along the Sunda Megathrust Fault separated in 2004, causing a huge earthquake.
A continental plate came up 20 feet and produced a huge tsunami that affected many surrounding countries in 2004.