Earthquake Patterns and Effects

On February 8, 2025, a major earthquake struck the Caribbean Sea between the Cayman Islands and Honduras. Despite its magnitude, the earthquake caused minimal damage and no casualties due to its location and the nature of the strike-slip fault. The earthquake generated a small tsunami and was followed by aftershocks. The tectonic activity was linked to the Cayman Trough, where the North American and Caribbean Plates interact. Observations suggest no significant pattern in the occurrence of such earthquakes along the fault line.

What was the local time when the major earthquake struck the Caribbean Sea on February 8th, 2025?

• 9:23 pm

• 7:23 pm

• 5:23 pm

• 3:23 pm

How many countries felt the seismic wave from the earthquake?

• 15 countries

• 12 countries

• 8 countries

• 10 countries

What was the maximum height of the tsunami wave generated by the earthquake?

• 1.6 inches

• 4.8 inches

• 3.2 inches

• 6.4 inches

Which two tectonic plates are involved in the Cayman Trough?

• South American Plate and African Plate

• Pacific Plate and North American Plate

• Eurasian Plate and Caribbean Plate

• North American Plate and Caribbean Plate

What type of fault is responsible for the earthquake in the Caribbean Sea?

• Normal fault

• Reverse fault

• Strike-slip fault

• Thrust fault

Why do strike-slip faults rarely generate large tsunamis?

• They always occur on land.

• They are too deep underwater.

• They do not involve significant vertical motion.

• They involve significant vertical motion.

What is the expected magnitude of the largest aftershock following the main earthquake?

• 8.4

• 7.4

• 6.4

• 5.4

What pattern do aftershocks generally follow over time?

• Decreasing in abundance

• Increasing in abundance

• Remaining constant

• Fluctuating randomly

What is the probability of a magnitude 6.4 or larger aftershock occurring?

• Under 30%

• Under 40%

• Under 50%

• Under 60%

What is the significance of the apparent trend of magnitude 6.5+ earthquakes occurring further east along the fault?

• It is a pure coincidence.

• It shows a decrease in earthquake magnitude.

• It suggests increasing earthquake frequency.

• It indicates a true pattern.