Disaster Types
Although often triggered by an earthquake under the ocean, this disaster is classified as tectonic rather than a weather event.
What is a tsunami?
This is where most of earthquakes happen. (Areas most at risk)
What are plate boundaries?
How many types of waves are produced by an earthquake?
What is 3?
This is the formula used to find the distance to an earthquake's epicenter using wave arrival times
What is: (S-wave arrival time − P-wave arrival time in seconds) × 8?
This is the safest place to be when there is a tsunami coming.
What is the highest place you can go?
What should we do in case of a tsunami?
What is go as high as you can?
This is the underground point where earthquake energy is first released.
What is the focus?
Name the two types of body waves.
What are Primary and Secondary waves?
This is the time difference if the S wave arrived at 6:02:45 and the P wave arrived at 6:02:09.
What is 36?
This is the safest place to be during a tornado.
Name the 3 natural disasters related to the movement of tectonic plates
What are Earthquakes, Volcanoes (Volcanic Eruptions), and Tsunamis?
This is the point on Earth's surface located directly above the focus.
What is the epicenter?
Name the two types of surface waves that are produced by an earthquake.
What are Rayleigh and Love waves?
When the time difference between S and P wave arrivals is 112 seconds, this is the distance to the epicenter. (Use km)
What is 896 km?
What is the safest thing to do before a hurricane approach?
What is evacuate?
Name at least 3 weather related natural disasters.
What are Hurricanes, Flooding, Blizzard, Drought, Fire, and Tornadoes?
The name of the scale that we use to measure the STRENGTH of earthquakes is...
What is the Richter scale?
Of P-waves, S-waves, and surface waves, this type travels the slowest but causes the most damage at the surface.
What are surface waves?
When S-waves arrive at 2:15:40 and P-waves arrive at 2:15:22, this is the distance to the epicenter. (Use km)
What is 144 km? (18 seconds × 8)
If you are near the coast and feel a strong earthquake, this is what you should do immediately without waiting for an official warning.
What is move to higher ground as fast as possible to avoid a potential tsunami?
This was the single most costly category of natural disaster in the United States in 2024, measured by frequency of billion-dollar events. (HINT: Found on NB 33)
What is severe weather?
The crack that forms in the earth's crust when rocks slide past each other.
This is the type of motion produced by an S-wave relative to its direction of travel.
What is shear?
When S-waves arrive at 2:09:40 and P-waves arrive at 2:04:22, this is the distance to the epicenter. (Use km)
What is 2544 km? (5 minutes = 300 seconds + 18 seconds = 318 seconds × 8)
You are at the beach and notice the water pulling far back from shore. This is what that means and what you should do.
What is a sign of a tsunami and run to higher ground immediately?