An earthquake occurs at a convergent boundary, the earthquake has a high magnitude, and an observer reports the earthquake having low intensity. Which statement about the earthquake is correct?
The earthquake likely occurred at a deep depth, as low intensity earthquakes are usually associated with greater depths.
The statement about the earthquake that is correct is that it has a high magnitude but low intensity.
To understand which statement about the earthquake is correct, let's first define a few key terms:
1. Convergent Boundary: This is a type of tectonic plate boundary where two plates are colliding or moving towards each other.
2. Magnitude: This refers to the measure of the total energy released during an earthquake. It is commonly measured using the Richter scale or Moment Magnitude Scale (Mw), and it is represented by a numerical value.
3. Intensity: This refers to the effects or impact of an earthquake on the Earth's surface and human-made structures. It is commonly measured using the Modified Mercalli Scale (MM), and it is represented by a Roman numeral.
Given these definitions, we can now analyze the question.
In the scenario described, an earthquake occurs at a convergent boundary, and it has a high magnitude. This suggests that there was a substantial release of energy during the earthquake.
However, the observer reports the earthquake having low intensity. This means that the effects or impact on the Earth's surface and structures in the area are relatively minor.
Based on this information, we can conclude that the correct statement about the earthquake is that it had a high magnitude but low intensity. The discrepancy between magnitude and intensity can occur due to several factors, such as distance from the epicenter, local geology, and how the energy is distributed.
To verify this answer, a seismograph can be used to measure the earthquake's magnitude accurately. Additionally, field observations and surveys can be conducted to determine the extent of damage and the effects on the surrounding area, which would help confirm the reported low intensity.